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-rw-r--r--erts/emulator/beam/beam_emu.c351
-rw-r--r--erts/emulator/beam/bif.tab3
-rw-r--r--erts/emulator/beam/break.c3
-rw-r--r--erts/emulator/beam/copy.c56
-rw-r--r--erts/emulator/beam/erl_bif_guard.c30
-rw-r--r--erts/emulator/beam/erl_db_hash.c2
-rw-r--r--erts/emulator/beam/erl_db_util.c244
-rw-r--r--erts/emulator/beam/erl_gc.h5
-rw-r--r--erts/emulator/beam/erl_map.c2739
-rw-r--r--erts/emulator/beam/erl_map.h167
-rw-r--r--erts/emulator/beam/erl_message.c12
-rw-r--r--erts/emulator/beam/erl_message.h15
-rw-r--r--erts/emulator/beam/erl_nif.c180
-rw-r--r--erts/emulator/beam/erl_nif.h14
-rw-r--r--erts/emulator/beam/erl_printf_term.c70
-rw-r--r--erts/emulator/beam/erl_term.c4
-rw-r--r--erts/emulator/beam/erl_term.h67
-rw-r--r--erts/emulator/beam/erl_utils.h2
-rw-r--r--erts/emulator/beam/erl_vm.h4
-rw-r--r--erts/emulator/beam/external.c260
-rw-r--r--erts/emulator/beam/global.h228
-rw-r--r--erts/emulator/beam/io.c77
-rw-r--r--erts/emulator/beam/sys.h10
-rw-r--r--erts/emulator/beam/utils.c938
24 files changed, 4595 insertions, 886 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index e847403882..6526e87e4c 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -699,7 +699,7 @@ void** beam_ops;
Fail; \
}
-#define IsMap(Src, Fail) if (is_not_map(Src)) { Fail; }
+#define IsMap(Src, Fail) if (!is_map(Src)) { Fail; }
#define HasMapField(Src, Key, Fail) if (has_not_map_field(Src, Key)) { Fail; }
@@ -2392,7 +2392,7 @@ void process_main(void)
}
OpCase(i_has_map_fields_fsI): {
- map_t* mp;
+ flatmap_t* mp;
Eterm map;
Eterm field;
Eterm *ks;
@@ -2400,22 +2400,34 @@ void process_main(void)
Uint sz,n;
GetArg1(1, map);
+ n = (Uint)Arg(2);
+ fs = &Arg(3); /* pattern fields */
- /* this instruction assumes Arg1 is a map,
- * i.e. that it follows a test is_map if needed.
- */
+ /* get term from field? */
+ if (is_hashmap(map)) {
+ Uint32 hx;
+ while(n--) {
+ field = *fs++;
+ hx = hashmap_make_hash(field);
+ if (!erts_hashmap_get(hx,field,map)) {
+ SET_I((BeamInstr *) Arg(0));
+ goto has_map_fields_fail;
+ }
+ }
+ goto has_map_fields_ok;
+ }
+
+ ASSERT(is_flatmap(map));
- mp = (map_t *)map_val(map);
- sz = map_get_size(mp);
+ mp = (flatmap_t *)flatmap_val(map);
+ sz = flatmap_get_size(mp);
if (sz == 0) {
SET_I((BeamInstr *) Arg(0));
goto has_map_fields_fail;
}
- ks = map_get_keys(mp);
- n = (Uint)Arg(2);
- fs = &Arg(3); /* pattern fields */
+ ks = flatmap_get_keys(mp);
ASSERT(n>0);
@@ -2433,7 +2445,7 @@ void process_main(void)
SET_I((BeamInstr *) Arg(0));
goto has_map_fields_fail;
}
-
+has_map_fields_ok:
I += 4 + Arg(2);
has_map_fields_fail:
ASSERT(VALID_INSTR(*I));
@@ -2460,12 +2472,8 @@ do { \
OpCase(i_get_map_elements_fsI): {
Eterm map;
- map_t *mp;
- Eterm field;
- Eterm *ks;
- Eterm *vs;
BeamInstr *fs;
- Uint sz,n;
+ Uint sz, n;
GetArg1(1, map);
@@ -2473,36 +2481,56 @@ do { \
* i.e. that it follows a test is_map if needed.
*/
- mp = (map_t *)map_val(map);
- sz = map_get_size(mp);
-
- if (sz == 0) {
- SET_I((BeamInstr *) Arg(0));
- goto get_map_elements_fail;
- }
-
n = (Uint)Arg(2) / 2;
fs = &Arg(3); /* pattern fields and target registers */
- ks = map_get_keys(mp);
- vs = map_get_values(mp);
- while(sz) {
- field = (Eterm)*fs;
- if (EQ(field,*ks)) {
- PUT_TERM_REG(*vs, fs[1]);
- n--;
+ if (is_flatmap(map)) {
+ flatmap_t *mp;
+ Eterm *ks;
+ Eterm *vs;
+
+ mp = (flatmap_t *)flatmap_val(map);
+ sz = flatmap_get_size(mp);
+
+ if (sz == 0) {
+ SET_I((BeamInstr *) Arg(0));
+ goto get_map_elements_fail;
+ }
+
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
+
+ while(sz) {
+ if (EQ((Eterm)*fs,*ks)) {
+ PUT_TERM_REG(*vs, fs[1]);
+ n--;
+ fs += 2;
+ /* no more values to fetch, we are done */
+ if (n == 0) break;
+ }
+ ks++; sz--;
+ vs++;
+ }
+
+ if (n) {
+ SET_I((BeamInstr *) Arg(0));
+ goto get_map_elements_fail;
+ }
+ } else {
+ const Eterm *v;
+ Uint32 hx;
+ ASSERT(is_hashmap(map));
+ while(n--) {
+ hx = hashmap_make_hash((Eterm)*fs);
+ if ((v = erts_hashmap_get(hx,(Eterm)*fs, map)) == NULL) {
+ SET_I((BeamInstr *) Arg(0));
+ goto get_map_elements_fail;
+ }
+ PUT_TERM_REG(*v, fs[1]);
fs += 2;
- /* no more values to fetch, we are done */
- if (n == 0) break;
}
- ks++; sz--;
- vs++;
}
- if (n) {
- SET_I((BeamInstr *) Arg(0));
- goto get_map_elements_fail;
- }
I += 4 + Arg(2);
get_map_elements_fail:
@@ -2801,6 +2829,7 @@ get_map_elements_fail:
}
PreFetch(1, next);
ASSERT(!ERTS_PROC_IS_EXITING(c_p));
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
reg[0] = r(0);
result = (*bf)(c_p, reg, I);
ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result));
@@ -6443,55 +6472,69 @@ new_fun(Process* p, Eterm* reg, ErlFunEntry* fe, int num_free)
static int has_not_map_field(Eterm map, Eterm key)
{
- map_t* mp;
- Eterm* keys;
- Uint i;
- Uint n;
-
- mp = (map_t *)map_val(map);
- keys = map_get_keys(mp);
- n = map_get_size(mp);
- if (is_immed(key)) {
- for (i = 0; i < n; i++) {
- if (keys[i] == key) {
- return 0;
+ Uint32 hx;
+ if (is_flatmap(map)) {
+ flatmap_t* mp;
+ Eterm* keys;
+ Uint i;
+ Uint n;
+
+ mp = (flatmap_t *)flatmap_val(map);
+ keys = flatmap_get_keys(mp);
+ n = flatmap_get_size(mp);
+ if (is_immed(key)) {
+ for (i = 0; i < n; i++) {
+ if (keys[i] == key) {
+ return 0;
+ }
}
- }
- } else {
- for (i = 0; i < n; i++) {
- if (EQ(keys[i], key)) {
- return 0;
+ } else {
+ for (i = 0; i < n; i++) {
+ if (EQ(keys[i], key)) {
+ return 0;
+ }
}
}
+ return 1;
}
- return 1;
+ ASSERT(is_hashmap(map));
+ hx = hashmap_make_hash(key);
+ return erts_hashmap_get(hx,key,map) ? 0 : 1;
}
static Eterm get_map_element(Eterm map, Eterm key)
{
- map_t *mp;
- Eterm* ks, *vs;
- Uint i;
- Uint n;
-
- mp = (map_t *)map_val(map);
- ks = map_get_keys(mp);
- vs = map_get_values(mp);
- n = map_get_size(mp);
- if (is_immed(key)) {
- for (i = 0; i < n; i++) {
- if (ks[i] == key) {
- return vs[i];
+ Uint32 hx;
+ const Eterm *vs;
+ if (is_flatmap(map)) {
+ flatmap_t *mp;
+ Eterm *ks;
+ Uint i;
+ Uint n;
+
+ mp = (flatmap_t *)flatmap_val(map);
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
+ n = flatmap_get_size(mp);
+ if (is_immed(key)) {
+ for (i = 0; i < n; i++) {
+ if (ks[i] == key) {
+ return vs[i];
+ }
}
- }
- } else {
- for (i = 0; i < n; i++) {
- if (EQ(ks[i], key)) {
- return vs[i];
+ } else {
+ for (i = 0; i < n; i++) {
+ if (EQ(ks[i], key)) {
+ return vs[i];
+ }
}
}
+ return THE_NON_VALUE;
}
- return THE_NON_VALUE;
+ ASSERT(is_hashmap(map));
+ hx = hashmap_make_hash(key);
+ vs = erts_hashmap_get(hx,key,map);
+ return vs ? *vs : THE_NON_VALUE;
}
#define GET_TERM(term, dest) \
@@ -6524,7 +6567,30 @@ new_map(Process* p, Eterm* reg, BeamInstr* I)
Eterm *mhp,*thp;
Eterm *E;
BeamInstr *ptr;
- map_t *mp;
+ flatmap_t *mp;
+ ErtsHeapFactory factory;
+
+ ptr = &Arg(4);
+
+ if (n > 2*MAP_SMALL_MAP_LIMIT) {
+ if (HeapWordsLeft(p) < n) {
+ erts_garbage_collect(p, n, reg, Arg(2));
+ }
+
+ mhp = p->htop;
+ thp = p->htop;
+ E = p->stop;
+
+ for (i = 0; i < n/2; i++) {
+ GET_TERM(*ptr++, *mhp++);
+ GET_TERM(*ptr++, *mhp++);
+ }
+
+ p->htop = mhp;
+
+ factory.p = p;
+ return erts_hashmap_from_array(&factory, thp, n/2, 0);
+ }
if (HeapWordsLeft(p) < need) {
erts_garbage_collect(p, need, reg, Arg(2));
@@ -6533,11 +6599,10 @@ new_map(Process* p, Eterm* reg, BeamInstr* I)
thp = p->htop;
mhp = thp + 1 + n/2;
E = p->stop;
- ptr = &Arg(4);
keys = make_tuple(thp);
*thp++ = make_arityval(n/2);
- mp = (map_t *)mhp; mhp += MAP_HEADER_SIZE;
+ mp = (flatmap_t *)mhp; mhp += MAP_HEADER_SIZE;
mp->thing_word = MAP_HEADER;
mp->size = n/2;
mp->keys = keys;
@@ -6547,7 +6612,7 @@ new_map(Process* p, Eterm* reg, BeamInstr* I)
GET_TERM(*ptr++, *mhp++);
}
p->htop = mhp;
- return make_map(mp);
+ return make_flatmap(mp);
}
static Eterm
@@ -6557,7 +6622,7 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
Uint num_old;
Uint num_updates;
Uint need;
- map_t *old_mp, *mp;
+ flatmap_t *old_mp, *mp;
Eterm res;
Eterm* hp;
Eterm* E;
@@ -6567,12 +6632,44 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
Eterm new_key;
Eterm* kp;
- if (is_not_map(map)) {
- return THE_NON_VALUE;
+ new_p = &Arg(5);
+ num_updates = Arg(4) / 2;
+
+ if (is_not_flatmap(map)) {
+ Uint32 hx;
+ Eterm val;
+
+ /* apparently the compiler does not emit is_map instructions,
+ * bad compiler */
+
+ if (is_not_hashmap(map))
+ return THE_NON_VALUE;
+
+ res = map;
+ E = p->stop;
+ while(num_updates--) {
+ /* assoc can't fail */
+ GET_TERM(new_p[0], new_key);
+ GET_TERM(new_p[1], val);
+ hx = hashmap_make_hash(new_key);
+
+ res = erts_hashmap_insert(p, hx, new_key, val, res, 0);
+ if (p->mbuf) {
+ Uint live = Arg(3);
+ reg[live] = res;
+ erts_garbage_collect(p, 0, reg, live+1);
+ res = reg[live];
+ }
+
+ E = p->stop;
+
+ new_p += 2;
+ }
+ return res;
}
- old_mp = (map_t *) map_val(map);
- num_old = map_get_size(old_mp);
+ old_mp = (flatmap_t *) flatmap_val(map);
+ num_old = flatmap_get_size(old_mp);
/*
* If the old map is empty, create a new map.
@@ -6587,14 +6684,13 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
* update list are new).
*/
- num_updates = Arg(4) / 2;
need = 2*(num_old+num_updates) + 1 + MAP_HEADER_SIZE;
if (HeapWordsLeft(p) < need) {
Uint live = Arg(3);
reg[live] = map;
erts_garbage_collect(p, need, reg, live+1);
map = reg[live];
- old_mp = (map_t *)map_val(map);
+ old_mp = (flatmap_t *)flatmap_val(map);
}
/*
@@ -6625,16 +6721,15 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
kp = p->htop + 1; /* Point to first key */
hp = kp + num_old + num_updates;
- res = make_map(hp);
- mp = (map_t *)hp;
+ res = make_flatmap(hp);
+ mp = (flatmap_t *)hp;
hp += MAP_HEADER_SIZE;
mp->thing_word = MAP_HEADER;
mp->keys = make_tuple(kp-1);
- old_vals = map_get_values(old_mp);
- old_keys = map_get_keys(old_mp);
+ old_vals = flatmap_get_values(old_mp);
+ old_keys = flatmap_get_keys(old_mp);
- new_p = &Arg(5);
GET_TERM(*new_p, new_key);
n = num_updates;
@@ -6720,8 +6815,19 @@ update_map_assoc(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
n = kp - p->htop - 1; /* Actual number of keys/values */
*p->htop = make_arityval(n);
+ p->htop = hp;
mp->size = n;
- p->htop = hp;
+
+ /* The expensive case, need to build a hashmap */
+ if (n > MAP_SMALL_MAP_LIMIT) {
+ res = erts_hashmap_from_ks_and_vs(p,flatmap_get_keys(mp),flatmap_get_values(mp),n);
+ if (p->mbuf) {
+ Uint live = Arg(3);
+ reg[live] = res;
+ erts_garbage_collect(p, 0, reg, live+1);
+ res = reg[live];
+ }
+ }
return res;
}
@@ -6736,7 +6842,7 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
Uint i;
Uint num_old;
Uint need;
- map_t *old_mp, *mp;
+ flatmap_t *old_mp, *mp;
Eterm res;
Eterm* hp;
Eterm* E;
@@ -6745,12 +6851,48 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
BeamInstr* new_p;
Eterm new_key;
- if (is_not_map(map)) {
- return THE_NON_VALUE;
+ new_p = &Arg(5);
+ n = Arg(4) / 2; /* Number of values to be updated */
+ ASSERT(n > 0);
+
+ if (is_not_flatmap(map)) {
+ Uint32 hx;
+ Eterm val;
+
+ /* apparently the compiler does not emit is_map instructions,
+ * bad compiler */
+
+ if (is_not_hashmap(map))
+ return THE_NON_VALUE;
+
+ res = map;
+ E = p->stop;
+ while(n--) {
+ /* assoc can't fail */
+ GET_TERM(new_p[0], new_key);
+ GET_TERM(new_p[1], val);
+ hx = hashmap_make_hash(new_key);
+
+ res = erts_hashmap_insert(p, hx, new_key, val, res, 1);
+ if (is_non_value(res))
+ return res;
+
+ if (p->mbuf) {
+ Uint live = Arg(3);
+ reg[live] = res;
+ erts_garbage_collect(p, 0, reg, live+1);
+ res = reg[live];
+ }
+
+ E = p->stop;
+
+ new_p += 2;
+ }
+ return res;
}
- old_mp = (map_t *) map_val(map);
- num_old = map_get_size(old_mp);
+ old_mp = (flatmap_t *) flatmap_val(map);
+ num_old = flatmap_get_size(old_mp);
/*
* If the old map is empty, create a new map.
@@ -6770,7 +6912,7 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
reg[live] = map;
erts_garbage_collect(p, need, reg, live+1);
map = reg[live];
- old_mp = (map_t *)map_val(map);
+ old_mp = (flatmap_t *)flatmap_val(map);
}
/*
@@ -6780,23 +6922,20 @@ update_map_exact(Process* p, Eterm* reg, Eterm map, BeamInstr* I)
hp = p->htop;
E = p->stop;
- old_vals = map_get_values(old_mp);
- old_keys = map_get_keys(old_mp);
+ old_vals = flatmap_get_values(old_mp);
+ old_keys = flatmap_get_keys(old_mp);
- res = make_map(hp);
- mp = (map_t *)hp;
+ res = make_flatmap(hp);
+ mp = (flatmap_t *)hp;
hp += MAP_HEADER_SIZE;
mp->thing_word = MAP_HEADER;
mp->size = num_old;
mp->keys = old_mp->keys;
/* Get array of key/value pairs to be updated */
- new_p = &Arg(5);
GET_TERM(*new_p, new_key);
/* Update all values */
- n = Arg(4) / 2; /* Number of values to be updated */
- ASSERT(n > 0);
for (i = 0; i < num_old; i++) {
if (!EQ(*old_keys, new_key)) {
/* Not same keys */
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index 788c866e63..5a0ee2ffc3 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -157,6 +157,8 @@ bif erts_internal:request_system_task/3
bif erts_internal:check_process_code/2
bif erts_internal:map_to_tuple_keys/1
+bif erts_internal:map_type/1
+bif erts_internal:map_hashmap_children/1
# inet_db support
bif erlang:port_set_data/2
@@ -614,6 +616,7 @@ bif erlang:fun_info_mfa/1
bif erlang:get_keys/0
bif ets:update_counter/4
+bif erts_debug:map_info/1
#
# Obsolete
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index 4ede2c9d7d..e2fa572546 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -661,7 +661,6 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
{
#ifdef ERTS_SMP
ErtsThrPrgrData tpd_buf; /* in case we aren't a managed thread... */
- int bc;
#endif
int fd;
size_t envsz;
@@ -681,7 +680,7 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
/* Order all managed threads to block, this has to be done
first to guarantee that this is the only thread to generate
crash dump. */
- bc = erts_thr_progress_fatal_error_block(&tpd_buf);
+ erts_thr_progress_fatal_error_block(&tpd_buf);
#ifdef ERTS_THR_HAVE_SIG_FUNCS
/*
diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c
index 0010f6a440..027b85b079 100644
--- a/erts/emulator/beam/copy.c
+++ b/erts/emulator/beam/copy.c
@@ -127,6 +127,35 @@ Uint size_object(Eterm obj)
obj = *bptr;
break;
}
+ case HASHMAP_SUBTAG:
+ switch (MAP_HEADER_TYPE(hdr)) {
+ case MAP_HEADER_TAG_HAMT_HEAD_BITMAP :
+ case MAP_HEADER_TAG_HAMT_HEAD_ARRAY :
+ case MAP_HEADER_TAG_HAMT_NODE_BITMAP :
+ {
+ Eterm *head;
+ Uint sz;
+ head = hashmap_val_rel(obj, base);
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ sum += 1 + sz + header_arity(hdr);
+ head += 1 + header_arity(hdr);
+
+ if (sz == 0) {
+ goto pop_next;
+ }
+ while(sz-- > 1) {
+ obj = head[sz];
+ if (!IS_CONST(obj)) {
+ ESTACK_PUSH(s, obj);
+ }
+ }
+ obj = head[0];
+ }
+ break;
+ default:
+ erl_exit(ERTS_ABORT_EXIT, "size_object: bad hashmap type %d\n", MAP_HEADER_TYPE(hdr));
+ }
+ break;
case SUB_BINARY_SUBTAG:
{
Eterm real_bin;
@@ -157,10 +186,10 @@ Uint size_object(Eterm obj)
case MAP_SUBTAG:
{
Uint n;
- map_t *mp;
- mp = (map_t*)map_val_rel(obj,base);
+ flatmap_t *mp;
+ mp = (flatmap_t*)flatmap_val_rel(obj,base);
ptr = (Eterm *)mp;
- n = map_get_size(mp) + 1;
+ n = flatmap_get_size(mp) + 1;
sum += n + 2;
ptr += 2; /* hdr + size words */
while (n--) {
@@ -342,8 +371,8 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
break;
case MAP_SUBTAG:
{
- i = map_get_size(objp) + 3;
- *argp = make_map_rel(htop, dst_base);
+ i = flatmap_get_size(objp) + 3;
+ *argp = make_flatmap_rel(htop, dst_base);
while (i--) {
*htop++ = *objp++;
}
@@ -459,7 +488,7 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
{
ExternalThing *etp = (ExternalThing *) htop;
- i = thing_arityval(hdr) + 1;
+ i = thing_arityval(hdr) + 1;
tp = htop;
while (i--) {
@@ -473,6 +502,21 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
*argp = make_external_rel(tp, dst_base);
}
break;
+ case HASHMAP_SUBTAG:
+ tp = htop;
+ switch (MAP_HEADER_TYPE(hdr)) {
+ case MAP_HEADER_TAG_HAMT_HEAD_BITMAP :
+ case MAP_HEADER_TAG_HAMT_HEAD_ARRAY :
+ *htop++ = *objp++;
+ case MAP_HEADER_TAG_HAMT_NODE_BITMAP :
+ i = 1 + hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ while (i--) { *htop++ = *objp++; }
+ *argp = make_hashmap_rel(tp, dst_base);
+ break;
+ default:
+ erl_exit(ERTS_ABORT_EXIT, "copy_struct: bad hashmap type %d\n", MAP_HEADER_TYPE(hdr));
+ }
+ break;
case BIN_MATCHSTATE_SUBTAG:
erl_exit(ERTS_ABORT_EXIT,
"copy_struct: matchstate term not allowed");
diff --git a/erts/emulator/beam/erl_bif_guard.c b/erts/emulator/beam/erl_bif_guard.c
index bbd8aa31d9..e7d84ebda1 100644
--- a/erts/emulator/beam/erl_bif_guard.c
+++ b/erts/emulator/beam/erl_bif_guard.c
@@ -459,23 +459,25 @@ Eterm erts_gc_byte_size_1(Process* p, Eterm* reg, Uint live)
Eterm erts_gc_map_size_1(Process* p, Eterm* reg, Uint live)
{
Eterm arg = reg[live];
- if (is_map(arg)) {
- map_t *mp = (map_t*)map_val(arg);
- Uint size = map_get_size(mp);
- if (IS_USMALL(0, size)) {
- return make_small(size);
- } else {
- Eterm* hp;
- if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) {
- erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live);
- }
- hp = p->htop;
- p->htop += BIG_UINT_HEAP_SIZE;
- return uint_to_big(size, hp);
- }
+ Eterm* hp;
+ Uint size;
+ if (is_flatmap(arg)) {
+ flatmap_t *mp = (flatmap_t*)flatmap_val(arg);
+ size = flatmap_get_size(mp);
+ } else if (is_hashmap(arg)) {
+ size = hashmap_size(arg);
} else {
BIF_ERROR(p, BADARG);
}
+ if (IS_USMALL(0, size)) {
+ return make_small(size);
+ }
+ if (ERTS_NEED_GC(p, BIG_UINT_HEAP_SIZE)) {
+ erts_garbage_collect(p, BIG_UINT_HEAP_SIZE, reg, live);
+ }
+ hp = p->htop;
+ p->htop += BIG_UINT_HEAP_SIZE;
+ return uint_to_big(size, hp);
}
Eterm erts_gc_abs_1(Process* p, Eterm* reg, Uint live)
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index 8668a87ba1..045c8ae135 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -174,7 +174,7 @@ static ERTS_INLINE void add_fixed_deletion(DbTableHash* tb, int ix)
/* optimised version of make_hash (normal case? atomic key) */
#define MAKE_HASH(term) \
((is_atom(term) ? (atom_tab(atom_val(term))->slot.bucket.hvalue) : \
- make_hash2(term)) % MAX_HASH)
+ make_internal_hash(term)) % MAX_HASH)
#ifdef ERTS_SMP
# define DB_HASH_LOCK_MASK (DB_HASH_LOCK_CNT-1)
diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c
index 60da35da56..9d699d4b22 100644
--- a/erts/emulator/beam/erl_db_util.c
+++ b/erts/emulator/beam/erl_db_util.c
@@ -231,7 +231,8 @@ typedef enum {
matchConsA, /* Car is below Cdr */
matchConsB, /* Cdr is below Car (unusual) */
matchMkTuple,
- matchMkMap,
+ matchMkFlatMap,
+ matchMkHashMap,
matchCall0,
matchCall1,
matchCall2,
@@ -1376,15 +1377,15 @@ restart:
for (;;) {
switch (t & _TAG_PRIMARY_MASK) {
case TAG_PRIMARY_BOXED:
- if (is_map(t)) {
- num_iters = map_get_size(map_val(t));
+ if (is_flatmap(t)) {
+ num_iters = flatmap_get_size(flatmap_val(t));
if (!structure_checked) {
DMC_PUSH(text, matchMap);
DMC_PUSH(text, num_iters);
}
structure_checked = 0;
for (i = 0; i < num_iters; ++i) {
- Eterm key = map_get_keys(map_val(t))[i];
+ Eterm key = flatmap_get_keys(flatmap_val(t))[i];
if (db_is_variable(key) >= 0) {
if (context.err_info) {
add_dmc_err(context.err_info,
@@ -1404,7 +1405,7 @@ restart:
DMC_PUSH(text, dmc_private_copy(&context, key));
{
int old_stack = ++(context.stack_used);
- Eterm value = map_get_values(map_val(t))[i];
+ Eterm value = flatmap_get_values(flatmap_val(t))[i];
res = dmc_one_term(&context, &heap, &stack, &text,
value);
ASSERT(res != retFail);
@@ -1424,6 +1425,63 @@ restart:
}
break;
}
+ if (is_hashmap(t)) {
+ DECLARE_WSTACK(wstack);
+ Eterm *kv;
+ num_iters = hashmap_size(t);
+ if (!structure_checked) {
+ DMC_PUSH(text, matchMap);
+ DMC_PUSH(text, num_iters);
+ }
+ structure_checked = 0;
+
+ hashmap_iterator_init(&wstack, t, 0);
+
+ while ((kv=hashmap_iterator_next(&wstack)) != NULL) {
+ Eterm key = CAR(kv);
+ Eterm value = CDR(kv);
+ if (db_is_variable(key) >= 0) {
+ if (context.err_info) {
+ add_dmc_err(context.err_info,
+ "Variable found in map key.",
+ -1, 0UL, dmcError);
+ }
+ DESTROY_WSTACK(wstack);
+ goto error;
+ } else if (key == am_Underscore) {
+ if (context.err_info) {
+ add_dmc_err(context.err_info,
+ "Underscore found in map key.",
+ -1, 0UL, dmcError);
+ }
+ DESTROY_WSTACK(wstack);
+ goto error;
+ }
+ DMC_PUSH(text, matchKey);
+ DMC_PUSH(text, dmc_private_copy(&context, key));
+ {
+ int old_stack = ++(context.stack_used);
+ res = dmc_one_term(&context, &heap, &stack, &text,
+ value);
+ ASSERT(res != retFail);
+ if (res == retRestart) {
+ DESTROY_WSTACK(wstack);
+ goto restart;
+ }
+ if (old_stack != context.stack_used) {
+ ASSERT(old_stack + 1 == context.stack_used);
+ DMC_PUSH(text, matchSwap);
+ }
+ if (context.stack_used > context.stack_need) {
+ context.stack_need = context.stack_used;
+ }
+ DMC_PUSH(text, matchPop);
+ --(context.stack_used);
+ }
+ }
+ DESTROY_WSTACK(wstack);
+ break;
+ }
if (!is_tuple(t)) {
goto simple_term;
}
@@ -1950,24 +2008,38 @@ restart:
FAIL();
}
n = *pc++;
- if (map_get_size(map_val_rel(*ep, base)) < n) {
- FAIL();
- }
- ep = map_val_rel(*ep, base);
+ if (is_flatmap_rel(*ep,base)) {
+ if (flatmap_get_size(flatmap_val_rel(*ep, base)) < n) {
+ FAIL();
+ }
+ } else {
+ ASSERT(is_hashmap_rel(*ep,base));
+ if (hashmap_size_rel(*ep, base) < n) {
+ FAIL();
+ }
+ }
+ ep = flatmap_val_rel(*ep, base);
break;
case matchPushM:
if (!is_map_rel(*ep, base)) {
FAIL();
}
n = *pc++;
- if (map_get_size(map_val_rel(*ep, base)) < n) {
- FAIL();
- }
- *sp++ = map_val_rel(*ep++, base);
+ if (is_flatmap_rel(*ep,base)) {
+ if (flatmap_get_size(flatmap_val_rel(*ep, base)) < n) {
+ FAIL();
+ }
+ } else {
+ ASSERT(is_hashmap_rel(*ep,base));
+ if (hashmap_size_rel(*ep, base) < n) {
+ FAIL();
+ }
+ }
+ *sp++ = flatmap_val_rel(*ep++, base);
break;
case matchKey:
t = (Eterm) *pc++;
- tp = erts_maps_get_rel(t, make_map_rel(ep, base), base);
+ tp = erts_maps_get_rel(t, make_flatmap_rel(ep, base), base);
if (!tp) {
FAIL();
}
@@ -2079,23 +2151,38 @@ restart:
}
*esp++ = t;
break;
- case matchMkMap:
+ case matchMkFlatMap:
n = *pc++;
ehp = HAllocX(build_proc, 1 + MAP_HEADER_SIZE + n, HEAP_XTRA);
t = *ehp++ = *--esp;
{
- map_t *m = (map_t *)ehp;
+ flatmap_t *m = (flatmap_t *)ehp;
m->thing_word = MAP_HEADER;
m->size = n;
m->keys = t;
}
- t = make_map(ehp);
+ t = make_flatmap(ehp);
ehp += MAP_HEADER_SIZE;
while (n--) {
*ehp++ = *--esp;
}
*esp++ = t;
break;
+ case matchMkHashMap:
+ n = *pc++;
+ esp -= 2*n;
+ ehp = HAllocX(build_proc, 2*n, HEAP_XTRA);
+ {
+ ErtsHeapFactory factory;
+ Uint ix;
+ factory.p = build_proc;
+ for (ix = 0; ix < 2*n; ix++){
+ ehp[ix] = esp[ix];
+ }
+ t = erts_hashmap_from_array(&factory, ehp, n, 0);
+ }
+ *esp++ = t;
+ break;
case matchCall0:
bif = (Eterm (*)(Process*, ...)) *pc++;
t = (*bif)(build_proc, bif_args);
@@ -3286,10 +3373,10 @@ int db_has_variable(Eterm node) {
while(arity--) {
ESTACK_PUSH(s,*(++tuple));
}
- } else if (is_map(node)) {
- Eterm *values = map_get_values(map_val(node));
- int size = map_get_size(map_val(node));
- ESTACK_PUSH(s, ((map_t *) map_val(node))->keys);
+ } else if (is_flatmap(node)) {
+ Eterm *values = flatmap_get_values(flatmap_val(node));
+ Uint size = flatmap_get_size(flatmap_val(node));
+ ESTACK_PUSH(s, ((flatmap_t *) flatmap_val(node))->keys);
while (size--) {
ESTACK_PUSH(s, *(values++));
}
@@ -3366,7 +3453,6 @@ static DMCRet dmc_one_term(DMCContext *context,
Uint sz, sz2, sz3;
Uint i, j;
-
switch (c & _TAG_PRIMARY_MASK) {
case TAG_PRIMARY_IMMED1:
if ((n = db_is_variable(c)) >= 0) { /* variable */
@@ -3454,7 +3540,14 @@ static DMCRet dmc_one_term(DMCContext *context,
DMC_PUSH(*stack, c);
break;
case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE):
- n = map_get_size(map_val(c));
+ n = flatmap_get_size(flatmap_val(c));
+ DMC_PUSH(*text, matchPushM);
+ ++(context->stack_used);
+ DMC_PUSH(*text, n);
+ DMC_PUSH(*stack, c);
+ break;
+ case (_TAG_HEADER_HASHMAP >> _TAG_PRIMARY_SIZE):
+ n = hashmap_size(c);
DMC_PUSH(*text, matchPushM);
++(context->stack_used);
DMC_PUSH(*text, n);
@@ -3745,30 +3838,87 @@ static DMCRet
dmc_map(DMCContext *context, DMCHeap *heap, DMC_STACK_TYPE(UWord) *text,
Eterm t, int *constant)
{
- map_t *m = (map_t *)map_val(t);
- Eterm *values = map_get_values(m);
- int nelems = map_get_size(m);
+ int nelems;
int constant_values;
DMCRet ret;
+ if (is_flatmap(t)) {
+ flatmap_t *m = (flatmap_t *)flatmap_val(t);
+ Eterm *values = flatmap_get_values(m);
- ret = dmc_array(context, heap, text, values, nelems, &constant_values);
- if (ret != retOk) {
- return ret;
- }
- if (constant_values) {
- *constant = 1;
+ nelems = flatmap_get_size(m);
+ ret = dmc_array(context, heap, text, values, nelems, &constant_values);
+
+ if (ret != retOk) {
+ return ret;
+ }
+ if (constant_values) {
+ *constant = 1;
+ return retOk;
+ }
+ DMC_PUSH(*text, matchPushC);
+ DMC_PUSH(*text, dmc_private_copy(context, m->keys));
+ if (++context->stack_used > context->stack_need) {
+ context->stack_need = context->stack_used;
+ }
+ DMC_PUSH(*text, matchMkFlatMap);
+ DMC_PUSH(*text, nelems);
+ context->stack_used -= nelems;
+ *constant = 0;
+ return retOk;
+ } else {
+ DECLARE_WSTACK(wstack);
+ Eterm *kv;
+ int c;
+
+ ASSERT(is_hashmap(t));
+
+ hashmap_iterator_init(&wstack, t, 1);
+ constant_values = 1;
+ nelems = hashmap_size(t);
+
+ while ((kv=hashmap_iterator_prev(&wstack)) != NULL) {
+ if ((ret = dmc_expr(context, heap, text, CDR(kv), &c)) != retOk) {
+ DESTROY_WSTACK(wstack);
+ return ret;
+ }
+ if (!c)
+ constant_values = 0;
+ }
+
+ if (constant_values) {
+ *constant = 1;
+ DESTROY_WSTACK(wstack);
+ return retOk;
+ }
+
+ *constant = 0;
+
+ hashmap_iterator_init(&wstack, t, 1);
+
+ while ((kv=hashmap_iterator_prev(&wstack)) != NULL) {
+ /* push key */
+ if ((ret = dmc_expr(context, heap, text, CAR(kv), &c)) != retOk) {
+ DESTROY_WSTACK(wstack);
+ return ret;
+ }
+ if (c) {
+ do_emit_constant(context, text, CAR(kv));
+ }
+ /* push value */
+ if ((ret = dmc_expr(context, heap, text, CDR(kv), &c)) != retOk) {
+ DESTROY_WSTACK(wstack);
+ return ret;
+ }
+ if (c) {
+ do_emit_constant(context, text, CDR(kv));
+ }
+ }
+ DMC_PUSH(*text, matchMkHashMap);
+ DMC_PUSH(*text, nelems);
+ context->stack_used -= nelems;
+ DESTROY_WSTACK(wstack);
return retOk;
}
- DMC_PUSH(*text, matchPushC);
- DMC_PUSH(*text, dmc_private_copy(context, m->keys));
- if (++context->stack_used > context->stack_need) {
- context->stack_need = context->stack_used;
- }
- DMC_PUSH(*text, matchMkMap);
- DMC_PUSH(*text, nelems);
- context->stack_used -= nelems;
- *constant = 0;
- return retOk;
}
static DMCRet dmc_whole_expression(DMCContext *context,
@@ -5462,11 +5612,17 @@ void db_match_dis(Binary *bp)
++t;
erts_printf("MkTuple\t%beu\n", n);
break;
- case matchMkMap:
+ case matchMkFlatMap:
+ ++t;
+ n = *t;
+ ++t;
+ erts_printf("MkFlatMap\t%beu\n", n);
+ break;
+ case matchMkHashMap:
++t;
n = *t;
++t;
- erts_printf("MkMapA\t%beu\n", n);
+ erts_printf("MkHashMap\t%beu\n", n);
break;
case matchOr:
++t;
diff --git a/erts/emulator/beam/erl_gc.h b/erts/emulator/beam/erl_gc.h
index bf0496c112..8afcb060a1 100644
--- a/erts/emulator/beam/erl_gc.h
+++ b/erts/emulator/beam/erl_gc.h
@@ -55,7 +55,9 @@ do { \
nelts = header_arity(HDR); \
switch ((HDR) & _HEADER_SUBTAG_MASK) { \
case SUB_BINARY_SUBTAG: nelts++; break; \
- case MAP_SUBTAG: nelts+=map_get_size(PTR) + 1; break; \
+ case MAP_SUBTAG: nelts+=flatmap_get_size(PTR) + 1; break; \
+ case HASHMAP_SUBTAG: nelts=hashmap_bitcount(MAP_HEADER_VAL(HDR)); \
+ nelts += is_hashmap_header_head(HDR) ? 1 : 0; break; \
case FUN_SUBTAG: nelts+=((ErlFunThing*)(PTR))->num_free+1; break; \
} \
gval = make_boxed(HTOP); \
@@ -63,7 +65,6 @@ do { \
*HTOP++ = HDR; \
*PTR++ = gval; \
while (nelts--) *HTOP++ = *PTR++; \
- \
} while(0)
#define in_area(ptr,start,nbytes) \
diff --git a/erts/emulator/beam/erl_map.c b/erts/emulator/beam/erl_map.c
index b2a16eb5ed..bd6da0a6f1 100644
--- a/erts/emulator/beam/erl_map.c
+++ b/erts/emulator/beam/erl_map.c
@@ -16,6 +16,9 @@
*
* %CopyrightEnd%
*
+ * hashmaps are an adaption of Rich Hickeys Persistent HashMaps
+ * which were an adaption of Phil Bagwells - Hash Array Mapped Tries
+ *
* Author: Björn-Egil Dahlberg
*/
@@ -62,39 +65,78 @@
* - erts_internal:map_to_tuple_keys/1
*/
+#ifndef DECL_AM
+#define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1)
+#endif
+
+/* for hashmap_from_list/1 */
+typedef struct {
+ Uint32 hx;
+ Uint32 skip;
+ Uint i;
+ Eterm val;
+} hxnode_t;
+
+
+static Eterm flatmap_merge(Process *p, Eterm nodeA, Eterm nodeB);
+static Eterm map_merge_mixed(Process *p, Eterm flat, Eterm tree, int swap_args);
+static Eterm hashmap_merge(Process *p, Eterm nodeA, Eterm nodeB);
+static Eterm hashmap_to_list(Process *p, Eterm map);
+static Eterm hashmap_keys(Process *p, Eterm map);
+static Eterm hashmap_values(Process *p, Eterm map);
+static Eterm hashmap_delete(Process *p, Uint32 hx, Eterm key, Eterm node);
+static Eterm map_from_validated_list(Process *p, Eterm list, Uint size);
+static Eterm hashmap_from_validated_list(Process *p, Eterm list, Uint size);
+static Eterm hashmap_from_unsorted_array(ErtsHeapFactory*, hxnode_t *hxns, Uint n, int reject_dupkeys);
+static Eterm hashmap_from_sorted_unique_array(ErtsHeapFactory*, hxnode_t *hxns, Uint n, int is_root);
+static Eterm hashmap_from_chunked_array(ErtsHeapFactory*, hxnode_t *hxns, Uint n, int is_root);
+static Eterm hashmap_info(Process *p, Eterm node);
+static Eterm hashmap_bld_tuple_uint(Uint **hpp, Uint *szp, Uint n, Uint nums[]);
+static int hxnodecmp(hxnode_t* a, hxnode_t* b);
+static int hxnodecmpkey(hxnode_t* a, hxnode_t* b);
+
/* erlang:map_size/1
* the corresponding instruction is implemented in:
* beam/erl_bif_guard.c
*/
BIF_RETTYPE map_size_1(BIF_ALIST_1) {
- if (is_map(BIF_ARG_1)) {
+ if (is_flatmap(BIF_ARG_1)) {
Eterm *hp;
Uint hsz = 0;
- map_t *mp = (map_t*)map_val(BIF_ARG_1);
- Uint n = map_get_size(mp);
+ flatmap_t *mp = (flatmap_t*)flatmap_val(BIF_ARG_1);
+ Uint n = flatmap_get_size(mp);
erts_bld_uint(NULL, &hsz, n);
hp = HAlloc(BIF_P, hsz);
BIF_RET(erts_bld_uint(&hp, NULL, n));
+ } else if (is_hashmap(BIF_ARG_1)) {
+ Eterm *head, *hp, res;
+ Uint size, hsz=0;
+
+ head = hashmap_val(BIF_ARG_1);
+ size = head[1];
+ (void) erts_bld_uint(NULL, &hsz, size);
+ hp = HAlloc(BIF_P, hsz);
+ res = erts_bld_uint(&hp, NULL, size);
+ BIF_RET(res);
}
BIF_ERROR(BIF_P, BADARG);
}
-/* maps:to_list/1
- */
+/* maps:to_list/1 */
BIF_RETTYPE maps_to_list_1(BIF_ALIST_1) {
- if (is_map(BIF_ARG_1)) {
+ if (is_flatmap(BIF_ARG_1)) {
Uint n;
Eterm* hp;
Eterm *ks,*vs, res, tup;
- map_t *mp = (map_t*)map_val(BIF_ARG_1);
+ flatmap_t *mp = (flatmap_t*)flatmap_val(BIF_ARG_1);
- ks = map_get_keys(mp);
- vs = map_get_values(mp);
- n = map_get_size(mp);
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
+ n = flatmap_get_size(mp);
hp = HAlloc(BIF_P, (2 + 3) * n);
res = NIL;
@@ -104,6 +146,8 @@ BIF_RETTYPE maps_to_list_1(BIF_ALIST_1) {
}
BIF_RET(res);
+ } else if (is_hashmap(BIF_ARG_1)) {
+ return hashmap_to_list(BIF_P, BIF_ARG_1);
}
BIF_ERROR(BIF_P, BADARG);
@@ -120,34 +164,41 @@ erts_maps_get_rel(Eterm key, Eterm map, Eterm *map_base)
erts_maps_get(Eterm key, Eterm map)
#endif
{
- Eterm *ks, *vs;
- map_t *mp;
- Uint n, i;
+ Uint32 hx;
+ if (is_flatmap_rel(map, map_base)) {
+ Eterm *ks, *vs;
+ flatmap_t *mp;
+ Uint n, i;
- mp = (map_t *)map_val_rel(map, map_base);
- n = map_get_size(mp);
+ mp = (flatmap_t *)flatmap_val_rel(map, map_base);
+ n = flatmap_get_size(mp);
- if (n == 0) {
- return NULL;
- }
+ if (n == 0) {
+ return NULL;
+ }
- ks = (Eterm *)tuple_val_rel(mp->keys, map_base) + 1;
- vs = map_get_values(mp);
+ ks = (Eterm *)tuple_val_rel(mp->keys, map_base) + 1;
+ vs = flatmap_get_values(mp);
- if (is_immed(key)) {
- for (i = 0; i < n; i++) {
- if (ks[i] == key) {
- return &vs[i];
- }
- }
- }
+ if (is_immed(key)) {
+ for (i = 0; i < n; i++) {
+ if (ks[i] == key) {
+ return &vs[i];
+ }
+ }
+ }
- for (i = 0; i < n; i++) {
- if (eq_rel(ks[i], NULL, key, map_base)) {
- return &vs[i];
- }
+ for (i = 0; i < n; i++) {
+ if (eq_rel(ks[i], map_base, key, NULL)) {
+ return &vs[i];
+ }
+ }
+ return NULL;
}
- return NULL;
+ ASSERT(is_hashmap_rel(map, map_base));
+ hx = hashmap_make_hash(key);
+
+ return erts_hashmap_get_rel(hx, key, map, map_base);
}
BIF_RETTYPE maps_find_2(BIF_ALIST_2) {
@@ -164,7 +215,6 @@ BIF_RETTYPE maps_find_2(BIF_ALIST_2) {
*hp++ = *value;
BIF_RET(res);
}
-
BIF_RET(am_error);
}
BIF_ERROR(BIF_P, BADARG);
@@ -202,13 +252,8 @@ BIF_RETTYPE maps_get_2(BIF_ALIST_2) {
*/
BIF_RETTYPE maps_from_list_1(BIF_ALIST_1) {
- Eterm *kv, item = BIF_ARG_1;
- Eterm *hp, *thp,*vs, *ks, keys, res;
- map_t *mp;
- Uint size = 0, unused_size = 0;
- Sint c = 0;
- Sint idx = 0;
-
+ Eterm item = BIF_ARG_1, res, *kv;
+ Uint size = 0;
if (is_list(item) || is_nil(item)) {
/* Calculate size and check validity */
@@ -229,368 +274,1091 @@ BIF_RETTYPE maps_from_list_1(BIF_ALIST_1) {
if (is_not_nil(item))
goto error;
- hp = HAlloc(BIF_P, 3 + 1 + (2 * size));
- thp = hp;
+ if (size > MAP_SMALL_MAP_LIMIT) {
+ BIF_RET(hashmap_from_validated_list(BIF_P, BIF_ARG_1, size));
+ } else {
+ BIF_RET(map_from_validated_list(BIF_P, BIF_ARG_1, size));
+ }
+ }
+
+error:
+
+ BIF_ERROR(BIF_P, BADARG);
+}
+
+static Eterm map_from_validated_list(Process *p, Eterm list, Uint size) {
+ Eterm *kv, item = list;
+ Eterm *hp, *thp,*vs, *ks, keys, res;
+ flatmap_t *mp;
+ Uint unused_size = 0;
+ Sint c = 0;
+ Sint idx = 0;
+
+
+ hp = HAlloc(p, 3 + 1 + (2 * size));
+ thp = hp;
+ keys = make_tuple(hp);
+ *hp++ = make_arityval(size);
+ ks = hp;
+ hp += size;
+ mp = (flatmap_t*)hp;
+ res = make_flatmap(mp);
+ hp += MAP_HEADER_SIZE;
+ vs = hp;
+
+ mp->thing_word = MAP_HEADER;
+ mp->size = size; /* set later, might shrink*/
+ mp->keys = keys;
+
+ if (size == 0)
+ return res;
+
+ /* first entry */
+ kv = tuple_val(CAR(list_val(item)));
+ ks[0] = kv[1];
+ vs[0] = kv[2];
+ size = 1;
+ item = CDR(list_val(item));
+
+ /* insert sort key/value pairs */
+ while(is_list(item)) {
+
+ kv = tuple_val(CAR(list_val(item)));
+
+ /* compare ks backwards
+ * idx represent word index to be written (hole position).
+ * We cannot copy the elements when searching since we might
+ * have an equal key. So we search for just the index first =(
+ *
+ * It is perhaps faster to move the values in the first pass.
+ * Check for uniqueness during insert phase and then have a
+ * second phace compacting the map if duplicates are found
+ * during insert. .. or do someother sort .. shell-sort perhaps.
+ */
+
+ idx = size;
+
+ while(idx > 0 && (c = CMP_TERM(kv[1],ks[idx-1])) < 0) { idx--; }
+
+ if (c == 0) {
+ /* last compare was equal,
+ * i.e. we have to release memory
+ * and overwrite that key/value
+ */
+ ks[idx-1] = kv[1];
+ vs[idx-1] = kv[2];
+ unused_size++;
+ } else {
+ Uint i = size;
+ while(i > idx) {
+ ks[i] = ks[i-1];
+ vs[i] = vs[i-1];
+ i--;
+ }
+ ks[idx] = kv[1];
+ vs[idx] = kv[2];
+ size++;
+ }
+ item = CDR(list_val(item));
+ }
+
+ if (unused_size) {
+ /* the key tuple is embedded in the heap
+ * write a bignum to clear it.
+ */
+ /* release values as normal since they are on the top of the heap */
+
+ ks[size] = make_pos_bignum_header(unused_size - 1);
+ HRelease(p, vs + size + unused_size, vs + size);
+ }
+
+ *thp = make_arityval(size);
+ mp->size = size;
+ return res;
+}
+
+#define swizzle32(D,S) \
+ do { \
+ (D) = ((S) & 0x0000000f) << 28 | ((S) & 0x000000f0) << 20 \
+ | ((S) & 0x00000f00) << 12 | ((S) & 0x0000f000) << 4 \
+ | ((S) & 0x000f0000) >> 4 | ((S) & 0x00f00000) >> 12 \
+ | ((S) & 0x0f000000) >> 20 | ((S) & 0xf0000000) >> 28; \
+ } while(0)
+
+#define maskval(V,L) (((V) >> ((7 - (L))*4)) & 0xf)
+#define cdepth(V1,V2) (hashmap_clz((V1) ^ (V2)) >> 2)
+
+static Eterm hashmap_from_validated_list(Process *p, Eterm list, Uint size) {
+ Eterm item = list;
+ Eterm *hp;
+ Eterm *kv, res;
+ Eterm tmp[2];
+ Uint32 sw, hx;
+ Uint ix = 0;
+ hxnode_t *hxns;
+ ErtsHeapFactory factory;
+
+ ASSERT(size > 0);
+
+ hp = HAlloc(p, (2 * size));
+
+ /* create tmp hx values and leaf ptrs */
+ hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, size * sizeof(hxnode_t));
+
+ while(is_list(item)) {
+ res = CAR(list_val(item));
+ kv = tuple_val(res);
+ hx = hashmap_restore_hash(tmp,0,kv[1]);
+ swizzle32(sw,hx);
+ hxns[ix].hx = sw;
+ hxns[ix].val = CONS(hp, kv[1], kv[2]); hp += 2;
+ hxns[ix].skip = 1; /* will be reassigned in from_array */
+ hxns[ix].i = ix;
+ ix++;
+ item = CDR(list_val(item));
+ }
+
+ factory.p = p;
+ res = hashmap_from_unsorted_array(&factory, hxns, size, 0);
+
+ erts_free(ERTS_ALC_T_TMP, (void *) hxns);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+
+ if (hashmap_size(res) <= MAP_SMALL_MAP_LIMIT) {
+ DECLARE_WSTACK(wstack);
+ Eterm *kv, *ks, *vs;
+ flatmap_t *mp;
+ Eterm keys;
+ Uint n = hashmap_size(res);
+
+ /* build flat structure */
+ hp = HAlloc(p, 3 + 1 + (2 * n));
keys = make_tuple(hp);
- *hp++ = make_arityval(size);
+ *hp++ = make_arityval(n);
ks = hp;
- hp += size;
- mp = (map_t*)hp;
- res = make_map(mp);
+ hp += n;
+ mp = (flatmap_t*)hp;
hp += MAP_HEADER_SIZE;
vs = hp;
mp->thing_word = MAP_HEADER;
- mp->size = size; /* set later, might shrink*/
+ mp->size = n;
mp->keys = keys;
- if (size == 0)
- BIF_RET(res);
+ hashmap_iterator_init(&wstack, res, 0);
+
+ while ((kv=hashmap_iterator_next(&wstack)) != NULL) {
+ *ks++ = CAR(kv);
+ *vs++ = CDR(kv);
+ }
- item = BIF_ARG_1;
+ /* it cannot have multiple keys */
+ erts_validate_and_sort_flatmap(mp);
- /* first entry */
- kv = tuple_val(CAR(list_val(item)));
- ks[0] = kv[1];
- vs[0] = kv[2];
- size = 1;
- item = CDR(list_val(item));
+ DESTROY_WSTACK(wstack);
+ return make_flatmap(mp);
+ }
- /* insert sort key/value pairs */
- while(is_list(item)) {
+ return res;
+}
- kv = tuple_val(CAR(list_val(item)));
-
- /* compare ks backwards
- * idx represent word index to be written (hole position).
- * We cannot copy the elements when searching since we might
- * have an equal key. So we search for just the index first =(
- *
- * It is perhaps faster to move the values in the first pass.
- * Check for uniqueness during insert phase and then have a
- * second phace compacting the map if duplicates are found
- * during insert. .. or do someother sort .. shell-sort perhaps.
- */
+Eterm erts_hashmap_from_array(ErtsHeapFactory* factory, Eterm *leafs, Uint n,
+ int reject_dupkeys) {
+ Uint32 sw, hx;
+ Uint ix;
+ hxnode_t *hxns;
+ Eterm res;
+
+ /* create tmp hx values and leaf ptrs */
+ hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, n * sizeof(hxnode_t));
+
+ for (ix = 0; ix < n; ix++) {
+ hx = hashmap_make_hash(*leafs);
+ swizzle32(sw,hx);
+ hxns[ix].hx = sw;
+ hxns[ix].val = make_list(leafs);
+ hxns[ix].skip = 1;
+ hxns[ix].i = ix;
+ leafs += 2;
+ }
- idx = size;
+ res = hashmap_from_unsorted_array(factory, hxns, n, reject_dupkeys);
- while(idx > 0 && (c = CMP_TERM(kv[1],ks[idx-1])) < 0) { idx--; }
+ erts_free(ERTS_ALC_T_TMP, (void *) hxns);
- if (c == 0) {
- /* last compare was equal,
- * i.e. we have to release memory
- * and overwrite that key/value
- */
- ks[idx-1] = kv[1];
- vs[idx-1] = kv[2];
- unused_size++;
- } else {
- Uint i = size;
- while(i > idx) {
- ks[i] = ks[i-1];
- vs[i] = vs[i-1];
- i--;
+ return res;
+}
+
+
+Eterm erts_hashmap_from_ks_and_vs_extra(Process *p, Eterm *ks, Eterm *vs, Uint n,
+ Eterm key, Eterm value) {
+ Uint32 sw, hx;
+ Uint i,sz;
+ hxnode_t *hxns;
+ ErtsHeapFactory factory;
+ Eterm *hp, res;
+
+ sz = (key == THE_NON_VALUE) ? n : (n + 1);
+ ASSERT(sz > MAP_SMALL_MAP_LIMIT);
+ hp = HAlloc(p, 2 * sz);
+
+ /* create tmp hx values and leaf ptrs */
+ hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, sz * sizeof(hxnode_t));
+
+ for(i = 0; i < n; i++) {
+ hx = hashmap_make_hash(ks[i]);
+ swizzle32(sw,hx);
+ hxns[i].hx = sw;
+ hxns[i].val = CONS(hp, ks[i], vs[i]); hp += 2;
+ hxns[i].skip = 1; /* will be reassigned in from_array */
+ hxns[i].i = i;
+ }
+
+ if (key != THE_NON_VALUE) {
+ hx = hashmap_make_hash(key);
+ swizzle32(sw,hx);
+ hxns[i].hx = sw;
+ hxns[i].val = CONS(hp, key, value); hp += 2;
+ hxns[i].skip = 1;
+ hxns[i].i = i;
+ }
+
+ factory.p = p;
+ res = hashmap_from_unsorted_array(&factory, hxns, sz, 0);
+
+ erts_free(ERTS_ALC_T_TMP, (void *) hxns);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+
+ return res;
+}
+
+static Eterm hashmap_from_unsorted_array(ErtsHeapFactory* factory,
+ hxnode_t *hxns, Uint n,
+ int reject_dupkeys) {
+ Uint jx = 0, ix = 0, lx, cx;
+ Eterm res;
+
+ if (n == 0) {
+ Eterm *hp;
+ hp = erts_produce_heap(factory, 2, 0);
+ hp[0] = MAP_HEADER_HAMT_HEAD_BITMAP(0);
+ hp[1] = 0;
+
+ return make_hashmap(hp);
+ }
+
+ /* sort and compact array (remove non-unique entries) */
+ qsort(hxns, n, sizeof(hxnode_t), (int (*)(const void *, const void *)) hxnodecmp);
+
+ ix = 0, cx = 0;
+ while(ix < n - 1) {
+ if (hxns[ix].hx == hxns[ix+1].hx) {
+
+ /* find region of equal hash values */
+ jx = ix + 1;
+ while(jx < n && hxns[ix].hx == hxns[jx].hx) { jx++; }
+ /* find all correct keys from region
+ * (last in list but now hash sorted so we check highest id instead) */
+
+ /* resort with keys instead of hash value within region */
+
+ qsort(&hxns[ix], jx - ix, sizeof(hxnode_t),
+ (int (*)(const void *, const void *)) hxnodecmpkey);
+
+ while(ix < jx) {
+ lx = ix;
+ while(ix < jx && EQ(CAR(list_val(hxns[ix].val)), CAR(list_val(hxns[lx].val)))) {
+ if (reject_dupkeys)
+ return THE_NON_VALUE;
+
+ if (hxns[ix].i > hxns[lx].i) {
+ lx = ix;
+ }
+ ix++;
}
- ks[idx] = kv[1];
- vs[idx] = kv[2];
- size++;
+ hxns[cx].hx = hxns[lx].hx;
+ hxns[cx].val = hxns[lx].val;
+ cx++;
}
- item = CDR(list_val(item));
+ ix = jx;
+ continue;
}
+ if (ix > cx) {
+ hxns[cx].hx = hxns[ix].hx;
+ hxns[cx].val = hxns[ix].val;
+ }
+ cx++;
+ ix++;
+ }
- if (unused_size) {
- /* the key tuple is embedded in the heap
- * write a bignum to clear it.
- */
- /* release values as normal since they are on the top of the heap */
+ if (ix < n) {
+ hxns[cx].hx = hxns[ix].hx;
+ hxns[cx].val = hxns[ix].val;
+ cx++;
+ }
- ks[size] = make_pos_bignum_header(unused_size - 1);
- HRelease(BIF_P, vs + size + unused_size, vs + size);
- }
+ if (cx > 1) {
+ /* recursive decompose array */
+ res = hashmap_from_sorted_unique_array(factory, hxns, cx, 0);
+ } else {
+ Eterm *hp;
- *thp = make_arityval(size);
- mp->size = size;
- BIF_RET(res);
+ /* we only have one item, either because n was 1 or
+ * because we hade multiples of the same key.
+ *
+ * hash value has been swizzled, need to drag it down to get the
+ * correct slot. */
+
+ hp = erts_produce_heap(factory, HAMT_HEAD_BITMAP_SZ(1), 0);
+ hp[0] = MAP_HEADER_HAMT_HEAD_BITMAP(1 << ((hxns[0].hx >> 0x1c) & 0xf));
+ hp[1] = 1;
+ hp[2] = hxns[0].val;
+ res = make_hashmap(hp);
}
-error:
+ return res;
+}
- BIF_ERROR(BIF_P, BADARG);
+static Eterm hashmap_from_sorted_unique_array(ErtsHeapFactory* factory,
+ hxnode_t *hxns, Uint n, int lvl) {
+ Eterm res = NIL;
+ Uint i,ix,jx,elems;
+ Uint32 sw, hx;
+ Eterm val;
+ Eterm th[2];
+ hxnode_t *tmp;
+
+ ASSERT(lvl < 32);
+ ix = 0;
+ elems = 1;
+ while (ix < n - 1) {
+ if (hxns[ix].hx == hxns[ix+1].hx) {
+ jx = ix + 1;
+ while (jx < n && hxns[ix].hx == hxns[jx].hx) { jx++; }
+ tmp = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, ((jx - ix)) * sizeof(hxnode_t));
+
+ for(i = 0; i < jx - ix; i++) {
+ val = hxns[i + ix].val;
+ hx = hashmap_restore_hash(th, lvl + 8, CAR(list_val(val)));
+ swizzle32(sw,hx);
+ tmp[i].hx = sw;
+ tmp[i].val = val;
+ tmp[i].i = i;
+ tmp[i].skip = 1;
+ }
+
+ qsort(tmp, jx - ix, sizeof(hxnode_t), (int (*)(const void *, const void *)) hxnodecmp);
+
+ hxns[ix].skip = jx - ix;
+ hxns[ix].val = hashmap_from_sorted_unique_array(factory, tmp, jx - ix, lvl + 8);
+ erts_free(ERTS_ALC_T_TMP, (void *) tmp);
+ ix = jx;
+ if (ix < n) { elems++; }
+ continue;
+ }
+ hxns[ix].skip = 1;
+ elems++;
+ ix++;
+ }
+
+ res = hashmap_from_chunked_array(factory, hxns, elems, !lvl);
+
+ ERTS_FACTORY_HOLE_CHECK(factory);
+
+ return res;
}
-/* maps:is_key/2
- */
+#define HALLOC_EXTRA 200
+static Eterm hashmap_from_chunked_array(ErtsHeapFactory *factory,
+ hxnode_t *hxns, Uint n, int is_root) {
+ Uint ix, d, dn, dc, slot, elems;
+ Uint32 v, vp, vn, hdr;
+ Uint bp, sz;
+ DECLARE_ESTACK(stack);
+ Eterm res = NIL, *hp = NULL, *nhp;
-BIF_RETTYPE maps_is_key_2(BIF_ALIST_2) {
- if (is_map(BIF_ARG_2)) {
- Eterm *ks, key;
- map_t *mp;
- Uint n,i;
+ ASSERT(n > 1);
- mp = (map_t*)map_val(BIF_ARG_2);
- key = BIF_ARG_1;
- n = map_get_size(mp);
- ks = map_get_keys(mp);
+ /* push initial nodes on the stack,
+ * this is the starting depth */
- if (n == 0)
- BIF_RET(am_false);
+ ix = 0;
+ d = 0;
+ vp = hxns[ix].hx;
+ v = hxns[ix + hxns[ix].skip].hx;
- if (is_immed(key)) {
- for( i = 0; i < n; i++) {
- if (ks[i] == key) {
- BIF_RET(am_true);
- }
+ ASSERT(vp > v);
+ slot = maskval(vp,d);
+
+ while(slot == maskval(v,d)) {
+ ESTACK_PUSH(stack, 1 << slot);
+ d++;
+ slot = maskval(vp,d);
+ }
+
+ res = hxns[ix].val;
+
+ if (hxns[ix].skip > 1) {
+ dc = 7;
+ /* build collision nodes */
+ while (dc > d) {
+ hp = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(1), HALLOC_EXTRA);
+ hp[0] = MAP_HEADER_HAMT_NODE_BITMAP(1 << maskval(vp,dc));
+ hp[1] = res;
+ res = make_hashmap(hp);
+ dc--;
+ }
+ }
+
+ ESTACK_PUSH(stack, res);
+ ESTACK_PUSH(stack, 1 << slot);
+
+ /* all of the other nodes .. */
+ elems = n - 2; /* remove first and last elements */
+ while(elems--) {
+ hdr = ESTACK_POP(stack);
+ ix = ix + hxns[ix].skip;
+
+ /* determine if node or subtree should be built by looking
+ * at the next value. */
+
+ vn = hxns[ix + hxns[ix].skip].hx;
+ dn = cdepth(v,vn);
+ ASSERT(v > vn);
+
+ res = hxns[ix].val;
+
+ if (hxns[ix].skip > 1) {
+ int wat = (d > dn) ? d : dn;
+ dc = 7;
+ /* build collision nodes */
+ while (dc > wat) {
+ hp = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(1), HALLOC_EXTRA);
+ hp[0] = MAP_HEADER_HAMT_NODE_BITMAP(1 << maskval(v,dc));
+ hp[1] = res;
+ res = make_hashmap(hp);
+ dc--;
}
}
- for( i = 0; i < n; i++) {
- if (EQ(ks[i], key)) {
- BIF_RET(am_true);
+ /* next depth is higher (implies collision) */
+ if (d < dn) {
+ /* hdr is the popped one initially */
+ while(d < dn) {
+ slot = maskval(v, d);
+ bp = 1 << slot;
+ ESTACK_PUSH(stack, hdr | bp);
+ d++;
+ hdr = 0; /* clear hdr for all other collisions */
}
+
+ slot = maskval(v, d);
+ bp = 1 << slot;
+ /* no more collisions */
+ ESTACK_PUSH(stack,res);
+ ESTACK_PUSH(stack,bp);
+ } else if (d == dn) {
+ /* no collisions at all */
+ slot = maskval(v, d);
+ bp = 1 << slot;
+ ESTACK_PUSH(stack,res);
+ ESTACK_PUSH(stack,hdr | bp);
+ } else {
+ /* dn < n, we have a drop and we are done
+ * build nodes and subtree */
+ while (dn != d) {
+ slot = maskval(v, d);
+ bp = 1 << slot;
+ /* OR bitposition before sz calculation to handle
+ * redundant collisions */
+ hdr |= bp;
+ sz = hashmap_bitcount(hdr);
+ hp = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(sz), HALLOC_EXTRA);
+ nhp = hp;
+ *hp++ = (hdr == 0xffff) ? MAP_HEADER_HAMT_NODE_ARRAY : MAP_HEADER_HAMT_NODE_BITMAP(hdr);
+ *hp++ = res; sz--;
+ while (sz--) { *hp++ = ESTACK_POP(stack); }
+ ASSERT((hp - nhp) < 18);
+ res = make_hashmap(nhp);
+
+ /* we need to pop the next hdr and push if we don't need it */
+
+ hdr = ESTACK_POP(stack);
+ d--;
+ }
+ ESTACK_PUSH(stack, res);
+ ESTACK_PUSH(stack, hdr);
}
- BIF_RET(am_false);
+
+ vp = v;
+ v = vn;
+ d = dn;
+ ERTS_FACTORY_HOLE_CHECK(factory);
+ }
+
+ /* v and vp are reused from above */
+ dn = cdepth(vp,v);
+ ix = ix + hxns[ix].skip;
+ res = hxns[ix].val;
+
+ if (hxns[ix].skip > 1) {
+ dc = 7;
+ /* build collision nodes */
+ while (dc > dn) {
+ hp = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(1), HALLOC_EXTRA);
+ hp[0] = MAP_HEADER_HAMT_NODE_BITMAP(1 << maskval(v,dc));
+ hp[1] = res;
+ res = make_hashmap(hp);
+ dc--;
+ }
+ }
+
+ hdr = ESTACK_POP(stack);
+ /* pop remaining subtree if any */
+ while (dn) {
+ slot = maskval(v, dn);
+ bp = 1 << slot;
+ /* OR bitposition before sz calculation to handle
+ * redundant collisions */
+ hdr |= bp;
+ sz = hashmap_bitcount(hdr);
+ hp = erts_produce_heap(factory, HAMT_NODE_BITMAP_SZ(sz), HALLOC_EXTRA);
+ nhp = hp;
+ *hp++ = (hdr == 0xffff) ? MAP_HEADER_HAMT_NODE_ARRAY : MAP_HEADER_HAMT_NODE_BITMAP(hdr);
+ *hp++ = res; sz--;
+
+ while (sz--) { *hp++ = ESTACK_POP(stack); }
+ res = make_hashmap(nhp);
+ hdr = ESTACK_POP(stack);
+ dn--;
+ }
+
+ /* and finally the root .. */
+
+ slot = maskval(v, dn);
+ bp = 1 << slot;
+ hdr |= bp;
+ sz = hashmap_bitcount(hdr);
+ hp = erts_produce_heap(factory, sz + /* hdr + item */ (is_root ? 2 : 1), 0);
+ nhp = hp;
+
+ if (is_root) {
+ *hp++ = (hdr == 0xffff) ? MAP_HEADER_HAMT_HEAD_ARRAY : MAP_HEADER_HAMT_HEAD_BITMAP(hdr);
+ *hp++ = n;
+ } else {
+ *hp++ = (hdr == 0xffff) ? MAP_HEADER_HAMT_NODE_ARRAY : MAP_HEADER_HAMT_NODE_BITMAP(hdr);
+ }
+
+ *hp++ = res; sz--;
+ while (sz--) { *hp++ = ESTACK_POP(stack); }
+
+ res = make_hashmap(nhp);
+
+ ASSERT(ESTACK_COUNT(stack) == 0);
+ DESTROY_ESTACK(stack);
+ ERTS_FACTORY_HOLE_CHECK(factory);
+ return res;
+}
+#undef HALLOC_EXTRA
+
+static int hxnodecmpkey(hxnode_t *a, hxnode_t *b) {
+ return CMP_TERM(CAR(list_val(a->val)), CAR(list_val(b->val)));
+}
+
+static int hxnodecmp(hxnode_t *a, hxnode_t *b) {
+ if (a->hx < b->hx)
+ return 1;
+ else if (a->hx == b->hx)
+ return 0;
+ else
+ return -1;
+}
+
+/* maps:is_key/2 */
+
+BIF_RETTYPE maps_is_key_2(BIF_ALIST_2) {
+ if (is_map(BIF_ARG_2)) {
+ BIF_RET(erts_maps_get(BIF_ARG_1, BIF_ARG_2) ? am_true : am_false);
}
BIF_ERROR(BIF_P, BADARG);
}
-/* maps:keys/1
- */
+/* maps:keys/1 */
BIF_RETTYPE maps_keys_1(BIF_ALIST_1) {
- if (is_map(BIF_ARG_1)) {
+ if (is_flatmap(BIF_ARG_1)) {
Eterm *hp, *ks, res = NIL;
- map_t *mp;
+ flatmap_t *mp;
Uint n;
- mp = (map_t*)map_val(BIF_ARG_1);
- n = map_get_size(mp);
+ mp = (flatmap_t*)flatmap_val(BIF_ARG_1);
+ n = flatmap_get_size(mp);
if (n == 0)
BIF_RET(res);
hp = HAlloc(BIF_P, (2 * n));
- ks = map_get_keys(mp);
+ ks = flatmap_get_keys(mp);
while(n--) {
res = CONS(hp, ks[n], res); hp += 2;
}
BIF_RET(res);
+ } else if (is_hashmap(BIF_ARG_1)) {
+ BIF_RET(hashmap_keys(BIF_P, BIF_ARG_1));
}
BIF_ERROR(BIF_P, BADARG);
}
-/* maps:merge/2
- */
+/* maps:merge/2 */
BIF_RETTYPE maps_merge_2(BIF_ALIST_2) {
- if (is_map(BIF_ARG_1) && is_map(BIF_ARG_2)) {
- Eterm *hp,*thp;
- Eterm tup;
- Eterm *ks,*vs,*ks1,*vs1,*ks2,*vs2;
- map_t *mp1,*mp2,*mp_new;
- Uint n1,n2,i1,i2,need,unused_size=0;
- int c = 0;
-
- mp1 = (map_t*)map_val(BIF_ARG_1);
- mp2 = (map_t*)map_val(BIF_ARG_2);
- n1 = map_get_size(mp1);
- n2 = map_get_size(mp2);
-
- need = MAP_HEADER_SIZE + 1 + 2*(n1 + n2);
-
- hp = HAlloc(BIF_P, need);
- thp = hp;
- tup = make_tuple(thp);
- ks = hp + 1; hp += 1 + n1 + n2;
- mp_new = (map_t*)hp; hp += MAP_HEADER_SIZE;
- vs = hp; hp += n1 + n2;
-
- mp_new->thing_word = MAP_HEADER;
- mp_new->size = 0;
- mp_new->keys = tup;
-
- i1 = 0; i2 = 0;
- ks1 = map_get_keys(mp1);
- vs1 = map_get_values(mp1);
- ks2 = map_get_keys(mp2);
- vs2 = map_get_values(mp2);
-
- while(i1 < n1 && i2 < n2) {
- c = CMP_TERM(ks1[i1],ks2[i2]);
- if ( c == 0) {
- /* use righthand side arguments map value,
- * but advance both maps */
- *ks++ = ks2[i2];
- *vs++ = vs2[i2];
- i1++, i2++, unused_size++;
- } else if ( c < 0) {
- *ks++ = ks1[i1];
- *vs++ = vs1[i1];
- i1++;
- } else {
- *ks++ = ks2[i2];
- *vs++ = vs2[i2];
- i2++;
- }
+ if (is_flatmap(BIF_ARG_1)) {
+ if (is_flatmap(BIF_ARG_2)) {
+ BIF_RET(flatmap_merge(BIF_P, BIF_ARG_1, BIF_ARG_2));
+ } else if (is_hashmap(BIF_ARG_2)) {
+ /* Will always become a tree */
+ BIF_RET(map_merge_mixed(BIF_P, BIF_ARG_1, BIF_ARG_2, 0));
}
+ } else if (is_hashmap(BIF_ARG_1)) {
+ if (is_hashmap(BIF_ARG_2)) {
+ BIF_RET(hashmap_merge(BIF_P, BIF_ARG_1, BIF_ARG_2));
+ } else if (is_flatmap(BIF_ARG_2)) {
+ /* Will always become a tree */
+ BIF_RET(map_merge_mixed(BIF_P, BIF_ARG_2, BIF_ARG_1, 1));
+ }
+ }
+ BIF_ERROR(BIF_P, BADARG);
+}
+
+static Eterm flatmap_merge(Process *p, Eterm nodeA, Eterm nodeB) {
+ Eterm *hp,*thp;
+ Eterm tup;
+ Eterm *ks,*vs,*ks1,*vs1,*ks2,*vs2;
+ flatmap_t *mp1,*mp2,*mp_new;
+ Uint n,n1,n2,i1,i2,need,unused_size=0;
+ int c = 0;
- /* copy remaining */
- while (i1 < n1) {
+ mp1 = (flatmap_t*)flatmap_val(nodeA);
+ mp2 = (flatmap_t*)flatmap_val(nodeB);
+ n1 = flatmap_get_size(mp1);
+ n2 = flatmap_get_size(mp2);
+
+ need = MAP_HEADER_SIZE + 1 + 2*(n1 + n2);
+
+ hp = HAlloc(p, need);
+ thp = hp;
+ tup = make_tuple(thp);
+ ks = hp + 1; hp += 1 + n1 + n2;
+ mp_new = (flatmap_t*)hp; hp += MAP_HEADER_SIZE;
+ vs = hp; hp += n1 + n2;
+
+ mp_new->thing_word = MAP_HEADER;
+ mp_new->size = 0;
+ mp_new->keys = tup;
+
+ i1 = 0; i2 = 0;
+ ks1 = flatmap_get_keys(mp1);
+ vs1 = flatmap_get_values(mp1);
+ ks2 = flatmap_get_keys(mp2);
+ vs2 = flatmap_get_values(mp2);
+
+ while(i1 < n1 && i2 < n2) {
+ c = CMP_TERM(ks1[i1],ks2[i2]);
+ if (c == 0) {
+ /* use righthand side arguments map value,
+ * but advance both maps */
+ *ks++ = ks2[i2];
+ *vs++ = vs2[i2];
+ i1++, i2++, unused_size++;
+ } else if (c < 0) {
*ks++ = ks1[i1];
*vs++ = vs1[i1];
i1++;
- }
-
- while (i2 < n2) {
+ } else {
*ks++ = ks2[i2];
*vs++ = vs2[i2];
i2++;
}
+ }
- if (unused_size) {
- /* the key tuple is embedded in the heap, write a bignum to clear it.
- *
- * release values as normal since they are on the top of the heap
- * size = n1 + n1 - unused_size
- */
+ /* copy remaining */
+ while (i1 < n1) {
+ *ks++ = ks1[i1];
+ *vs++ = vs1[i1];
+ i1++;
+ }
- *ks = make_pos_bignum_header(unused_size - 1);
- HRelease(BIF_P, vs + unused_size, vs);
- }
+ while (i2 < n2) {
+ *ks++ = ks2[i2];
+ *vs++ = vs2[i2];
+ i2++;
+ }
- mp_new->size = n1 + n2 - unused_size;
- *thp = make_arityval(n1 + n2 - unused_size);
+ if (unused_size) {
+ /* the key tuple is embedded in the heap, write a bignum to clear it.
+ *
+ * release values as normal since they are on the top of the heap
+ * size = n1 + n1 - unused_size
+ */
- BIF_RET(make_map(mp_new));
+ *ks = make_pos_bignum_header(unused_size - 1);
+ HRelease(p, vs + unused_size, vs);
}
- BIF_ERROR(BIF_P, BADARG);
-}
-/* maps:new/2
- */
-BIF_RETTYPE maps_new_0(BIF_ALIST_0) {
- Eterm* hp;
- Eterm tup;
- map_t *mp;
+ n = n1 + n2 - unused_size;
+ *thp = make_arityval(n);
- hp = HAlloc(BIF_P, (MAP_HEADER_SIZE + 1));
- tup = make_tuple(hp);
- *hp++ = make_arityval(0);
+ /* Reshape map to a hashmap if the map exceeds the limit */
- mp = (map_t*)hp;
- mp->thing_word = MAP_HEADER;
- mp->size = 0;
- mp->keys = tup;
+ if (n > MAP_SMALL_MAP_LIMIT) {
+ Uint32 hx,sw;
+ Uint i;
+ Eterm res;
+ hxnode_t *hxns;
+ ErtsHeapFactory factory;
- BIF_RET(make_map(mp));
-}
+ ks = flatmap_get_keys(mp_new);
+ vs = flatmap_get_values(mp_new);
-/* maps:put/3
- */
+ hp = HAlloc(p, 2 * n);
-Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map) {
- Sint n,i;
- Sint c = 0;
- Eterm* hp, *shp;
- Eterm *ks,*vs, res, tup;
- map_t *mp = (map_t*)map_val(map);
+ hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP,n * sizeof(hxnode_t));
- n = map_get_size(mp);
+ for (i = 0; i < n; i++) {
+ hx = hashmap_make_hash(ks[i]);
+ swizzle32(sw,hx);
+ hxns[i].hx = sw;
+ hxns[i].val = CONS(hp, ks[i], vs[i]); hp += 2;
+ hxns[i].skip = 1;
+ hxns[i].i = i;
+ }
- if (n == 0) {
- hp = HAlloc(p, MAP_HEADER_SIZE + 1 + 2);
- tup = make_tuple(hp);
- *hp++ = make_arityval(1);
- *hp++ = key;
- res = make_map(hp);
- *hp++ = MAP_HEADER;
- *hp++ = 1;
- *hp++ = tup;
- *hp++ = value;
+ factory.p = p;
+ res = hashmap_from_unsorted_array(&factory, hxns, n, 0);
+
+ erts_free(ERTS_ALC_T_TMP, (void *) hxns);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
return res;
}
- ks = map_get_keys(mp);
- vs = map_get_values(mp);
+ mp_new->size = n;
- /* only allocate for values,
- * assume key-tuple will be intact
+ return make_flatmap(mp_new);
+}
+
+static Eterm map_merge_mixed(Process *p, Eterm flat, Eterm tree, int swap_args) {
+ Eterm *ks, *vs, *hp, res;
+ flatmap_t *mp;
+ Uint n, i;
+ hxnode_t *hxns;
+ Uint32 sw, hx;
+ ErtsHeapFactory factory;
+
+ /* convert flat to tree */
+
+ ASSERT(is_flatmap(flat));
+ ASSERT(is_hashmap(tree));
+
+ mp = (flatmap_t*)flatmap_val(flat);
+ n = flatmap_get_size(mp);
+
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
+
+ hp = HAlloc(p, 2 * n);
+
+ hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, n * sizeof(hxnode_t));
+
+ for (i = 0; i < n; i++) {
+ hx = hashmap_make_hash(ks[i]);
+ swizzle32(sw,hx);
+ hxns[i].hx = sw;
+ hxns[i].val = CONS(hp, ks[i], vs[i]); hp += 2;
+ hxns[i].skip = 1;
+ hxns[i].i = i;
+ }
+
+ factory.p = p;
+ res = hashmap_from_unsorted_array(&factory, hxns, n, 0);
+
+ erts_free(ERTS_ALC_T_TMP, (void *) hxns);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+
+ return swap_args ? hashmap_merge(p, tree, res) : hashmap_merge(p, res, tree);
+}
+
+#define HALLOC_EXTRA 200
+
+static Eterm hashmap_merge(Process *p, Eterm nodeA, Eterm nodeB) {
+#define PSTACK_TYPE struct HashmapMergePStackType
+ struct HashmapMergePStackType {
+ Eterm *srcA, *srcB;
+ Uint32 abm, bbm, rbm; /* node bitmaps */
+ int keepA;
+ int ix;
+ Eterm array[16];
+ };
+ PSTACK_DECLARE(s, 4);
+ struct HashmapMergePStackType* sp = PSTACK_PUSH(s);
+ Eterm *hp, *nhp;
+ Eterm hdrA, hdrB;
+ Eterm th[2];
+ Uint32 ahx, bhx;
+ Uint size; /* total key-value counter */
+ int keepA = 0;
+ unsigned lvl = 0;
+ Eterm res = THE_NON_VALUE;
+
+ /*
+ * Strategy: Do depth-first traversal of both trees (at the same time)
+ * and merge each pair of nodes.
*/
- hp = HAlloc(p, MAP_HEADER_SIZE + n);
- shp = hp; /* save hp, used if optimistic update fails */
- res = make_map(hp);
- *hp++ = MAP_HEADER;
- *hp++ = n;
- *hp++ = mp->keys;
-
- if (is_immed(key)) {
- for( i = 0; i < n; i ++) {
- if (ks[i] == key) {
- *hp++ = value;
- vs++;
- c = 1;
+ {
+ hashmap_head_t* a = (hashmap_head_t*) hashmap_val(nodeA);
+ hashmap_head_t* b = (hashmap_head_t*) hashmap_val(nodeB);
+ size = a->size + b->size;
+ }
+
+recurse:
+
+ if (primary_tag(nodeA) == TAG_PRIMARY_BOXED &&
+ primary_tag(nodeB) == TAG_PRIMARY_LIST) {
+ /* Avoid implementing this combination by switching places */
+ Eterm tmp = nodeA;
+ nodeA = nodeB;
+ nodeB = tmp;
+ keepA = !keepA;
+ }
+
+ switch (primary_tag(nodeA)) {
+ case TAG_PRIMARY_LIST: {
+ sp->srcA = list_val(nodeA);
+ switch (primary_tag(nodeB)) {
+ case TAG_PRIMARY_LIST: { /* LEAF + LEAF */
+ sp->srcB = list_val(nodeB);
+
+ if (EQ(CAR(sp->srcA), CAR(sp->srcB))) {
+ --size;
+ res = keepA ? nodeA : nodeB;
} else {
- *hp++ = *vs++;
+ ahx = hashmap_restore_hash(th, lvl, CAR(sp->srcA));
+ bhx = hashmap_restore_hash(th, lvl, CAR(sp->srcB));
+ sp->abm = 1 << hashmap_index(ahx);
+ sp->bbm = 1 << hashmap_index(bhx);
+
+ sp->srcA = &nodeA;
+ sp->srcB = &nodeB;
}
+ break;
}
- } else {
- for( i = 0; i < n; i ++) {
- if (EQ(ks[i], key)) {
- *hp++ = value;
- vs++;
- c = 1;
- } else {
- *hp++ = *vs++;
+ case TAG_PRIMARY_BOXED: { /* LEAF + NODE */
+ sp->srcB = boxed_val(nodeB);
+ ASSERT(is_header(*sp->srcB));
+ hdrB = *sp->srcB++;
+
+ ahx = hashmap_restore_hash(th, lvl, CAR(sp->srcA));
+ sp->abm = 1 << hashmap_index(ahx);
+ sp->srcA = &nodeA;
+ switch(hdrB & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY: sp->srcB++;
+ case HAMT_SUBTAG_NODE_ARRAY:
+ sp->bbm = 0xffff;
+ break;
+
+ case HAMT_SUBTAG_HEAD_BITMAP: sp->srcB++;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ sp->bbm = MAP_HEADER_VAL(hdrB);
+ break;
+
+ default:
+ erl_exit(1, "bad header tag %ld\r\n", *sp->srcB & _HEADER_MAP_SUBTAG_MASK);
+ break;
}
+ break;
+ }
+ default:
+ erl_exit(1, "bad primary tag %ld\r\n", nodeB);
}
+ break;
}
+ case TAG_PRIMARY_BOXED: { /* NODE + NODE */
+ sp->srcA = boxed_val(nodeA);
+ hdrA = *sp->srcA++;
+ ASSERT(is_header(hdrA));
+ switch (hdrA & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY: sp->srcA++;
+ case HAMT_SUBTAG_NODE_ARRAY: {
+ ASSERT(primary_tag(nodeB) == TAG_PRIMARY_BOXED);
+ sp->abm = 0xffff;
+ sp->srcB = boxed_val(nodeB);
+ hdrB = *sp->srcB++;
+ ASSERT(is_header(hdrB));
+ switch (hdrB & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY: sp->srcB++;
+ case HAMT_SUBTAG_NODE_ARRAY:
+ sp->bbm = 0xffff;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP: sp->srcB++;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ sp->bbm = MAP_HEADER_VAL(hdrB);
+ break;
+ default:
+ erl_exit(1, "bad header tag %ld\r\n", *sp->srcB & _HEADER_MAP_SUBTAG_MASK);
+ }
+ break;
+ }
+ case HAMT_SUBTAG_HEAD_BITMAP: sp->srcA++;
+ case HAMT_SUBTAG_NODE_BITMAP: {
+ ASSERT(primary_tag(nodeB) == TAG_PRIMARY_BOXED);
+ sp->abm = MAP_HEADER_VAL(hdrA);
+ sp->srcB = boxed_val(nodeB);
+ hdrB = *sp->srcB++;
+ ASSERT(is_header(hdrB));
+ switch (hdrB & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY: sp->srcB++;
+ case HAMT_SUBTAG_NODE_ARRAY:
+ sp->bbm = 0xffff;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP: sp->srcB++;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ sp->bbm = MAP_HEADER_VAL(hdrB);
+ break;
- if (c)
- return res;
+ default:
+ erl_exit(1, "bad header tag %ld\r\n", *sp->srcB & _HEADER_MAP_SUBTAG_MASK);
+ }
+ break;
+ }
+ default:
+ erl_exit(1, "bad primary tag %ld\r\n", nodeA);
+ }
+ break;
+ }
+ default:
+ erl_exit(1, "bad primary tag %ld\r\n", nodeA);
+ }
- /* need to make a new tuple,
- * use old hp since it needs to be recreated anyway.
- */
- tup = make_tuple(shp);
- *shp++ = make_arityval(n+1);
+ for (;;) {
+ if (is_value(res)) { /* We have a complete (sub-)tree or leaf */
+ if (lvl == 0)
+ break;
+
+ /* Pop from stack and continue build parent node */
+ lvl--;
+ sp = PSTACK_POP(s);
+ sp->array[sp->ix++] = res;
+ res = THE_NON_VALUE;
+ if (sp->rbm) {
+ sp->srcA++;
+ sp->srcB++;
+ keepA = sp->keepA;
+ }
+ } else { /* Start build a node */
+ sp->ix = 0;
+ sp->rbm = sp->abm | sp->bbm;
+ ASSERT(!(sp->rbm == 0 && lvl > 0));
+ }
- hp = HAlloc(p, 3 + n + 1);
- res = make_map(hp);
- *hp++ = MAP_HEADER;
- *hp++ = n + 1;
- *hp++ = tup;
+ while (sp->rbm) {
+ Uint32 next = sp->rbm & (sp->rbm-1);
+ Uint32 bit = sp->rbm ^ next;
+ sp->rbm = next;
+ if (sp->abm & bit) {
+ if (sp->bbm & bit) {
+ /* Bit clash. Push and resolve by recursive merge */
+ if (sp->rbm) {
+ sp->keepA = keepA;
+ }
+ nodeA = *sp->srcA;
+ nodeB = *sp->srcB;
+ lvl++;
+ sp = PSTACK_PUSH(s);
+ goto recurse;
+ } else {
+ sp->array[sp->ix++] = *sp->srcA++;
+ }
+ } else {
+ ASSERT(sp->bbm & bit);
+ sp->array[sp->ix++] = *sp->srcB++;
+ }
+ }
- ks = map_get_keys(mp);
- vs = map_get_values(mp);
+ ASSERT(sp->ix == hashmap_bitcount(sp->abm | sp->bbm));
+ if (lvl == 0) {
+ nhp = HAllocX(p, HAMT_HEAD_BITMAP_SZ(sp->ix), HALLOC_EXTRA);
+ hp = nhp;
+ *hp++ = (sp->ix == 16 ? MAP_HEADER_HAMT_HEAD_ARRAY
+ : MAP_HEADER_HAMT_HEAD_BITMAP(sp->abm | sp->bbm));
+ *hp++ = size;
+ } else {
+ nhp = HAllocX(p, HAMT_NODE_BITMAP_SZ(sp->ix), HALLOC_EXTRA);
+ hp = nhp;
+ *hp++ = (sp->ix == 16 ? make_arityval(16)
+ : MAP_HEADER_HAMT_NODE_BITMAP(sp->abm | sp->bbm));
+ }
+ memcpy(hp, sp->array, sp->ix * sizeof(Eterm));
+ res = make_boxed(nhp);
+ }
+ PSTACK_DESTROY(s);
+ return res;
+}
- ASSERT(n >= 0);
+static int hash_cmp(Uint32 ha, Uint32 hb)
+{
+ int i;
+ for (i=0; i<8; i++) {
+ int cmp = (int)(ha & 0xF) - (int)(hb & 0xF);
+ if (cmp)
+ return cmp;
+ ha >>= 4;
+ hb >>= 4;
+ }
+ return 0;
+}
- /* copy map in order */
- while (n && ((c = CMP_TERM(*ks, key)) < 0)) {
- *shp++ = *ks++;
- *hp++ = *vs++;
- n--;
+int hashmap_key_hash_cmp(Eterm* ap, Eterm* bp)
+{
+ Eterm th[2];
+ unsigned lvl = 0;
+
+ if (ap && bp) {
+ ASSERT(CMP_TERM(CAR(ap), CAR(bp)) != 0);
+ for (;;) {
+ Uint32 ha = hashmap_restore_hash(th, lvl, CAR(ap));
+ Uint32 hb = hashmap_restore_hash(th, lvl, CAR(bp));
+ int cmp = hash_cmp(ha, hb);
+ if (cmp)
+ return cmp;
+ lvl += 8;
+ }
}
+ return ap ? -1 : 1;
+}
- *shp++ = key;
- *hp++ = value;
+/* maps:new/0 */
- ASSERT(n >= 0);
+BIF_RETTYPE maps_new_0(BIF_ALIST_0) {
+ Eterm* hp;
+ Eterm tup;
+ flatmap_t *mp;
- while(n--) {
- *shp++ = *ks++;
- *hp++ = *vs++;
- }
- /* we have one word remaining
- * this will work out fine once we get the size word
- * in the header.
- */
- *shp = make_pos_bignum_header(0);
- return res;
+ hp = HAlloc(BIF_P, (MAP_HEADER_SIZE + 1));
+ tup = make_tuple(hp);
+ *hp++ = make_arityval(0);
+
+ mp = (flatmap_t*)hp;
+ mp->thing_word = MAP_HEADER;
+ mp->size = 0;
+ mp->keys = tup;
+
+ BIF_RET(make_flatmap(mp));
}
+/* maps:put/3 */
+
BIF_RETTYPE maps_put_3(BIF_ALIST_3) {
if (is_map(BIF_ARG_3)) {
BIF_RET(erts_maps_put(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3));
@@ -598,81 +1366,87 @@ BIF_RETTYPE maps_put_3(BIF_ALIST_3) {
BIF_ERROR(BIF_P, BADARG);
}
-/* maps:remove/3
- */
+/* maps:remove/3 */
int erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res) {
- Sint n;
- Uint need;
- Eterm *hp_start;
- Eterm *thp, *mhp;
- Eterm *ks, *vs, tup;
- map_t *mp = (map_t*)map_val(map);
+ Uint32 hx;
+ if (is_flatmap(map)) {
+ Sint n;
+ Uint need;
+ Eterm *hp_start;
+ Eterm *thp, *mhp;
+ Eterm *ks, *vs, tup;
+ flatmap_t *mp = (flatmap_t*)flatmap_val(map);
+
+ n = flatmap_get_size(mp);
+
+ if (n == 0) {
+ *res = map;
+ return 1;
+ }
- n = map_get_size(mp);
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
- if (n == 0) {
- *res = map;
- return 1;
- }
+ /* Assume key exists.
+ * Release allocated if it didn't.
+ * Allocate key tuple first.
+ */
- ks = map_get_keys(mp);
- vs = map_get_values(mp);
+ need = n + 1 - 1 + 3 + n - 1; /* tuple - 1 + map - 1 */
+ hp_start = HAlloc(p, need);
+ thp = hp_start;
+ mhp = thp + n; /* offset with tuple heap size */
- /* Assume key exists.
- * Release allocated if it didn't.
- * Allocate key tuple first.
- */
+ tup = make_tuple(thp);
+ *thp++ = make_arityval(n - 1);
- need = n + 1 - 1 + 3 + n - 1; /* tuple - 1 + map - 1 */
- hp_start = HAlloc(p, need);
- thp = hp_start;
- mhp = thp + n; /* offset with tuple heap size */
+ *res = make_flatmap(mhp);
+ *mhp++ = MAP_HEADER;
+ *mhp++ = n - 1;
+ *mhp++ = tup;
- tup = make_tuple(thp);
- *thp++ = make_arityval(n - 1);
-
- *res = make_map(mhp);
- *mhp++ = MAP_HEADER;
- *mhp++ = n - 1;
- *mhp++ = tup;
-
- if (is_immed(key)) {
- while (1) {
- if (*ks == key) {
- goto found_key;
- } else if (--n) {
- *mhp++ = *vs++;
- *thp++ = *ks++;
- } else
- break;
- }
- } else {
- while(1) {
- if (EQ(*ks, key)) {
- goto found_key;
- } else if (--n) {
- *mhp++ = *vs++;
- *thp++ = *ks++;
- } else
- break;
+ if (is_immed(key)) {
+ while (1) {
+ if (*ks == key) {
+ goto found_key;
+ } else if (--n) {
+ *mhp++ = *vs++;
+ *thp++ = *ks++;
+ } else
+ break;
+ }
+ } else {
+ while(1) {
+ if (EQ(*ks, key)) {
+ goto found_key;
+ } else if (--n) {
+ *mhp++ = *vs++;
+ *thp++ = *ks++;
+ } else
+ break;
+ }
}
- }
- /* Not found, remove allocated memory
- * and return previous map.
- */
- HRelease(p, hp_start + need, hp_start);
+ /* Not found, remove allocated memory
+ * and return previous map.
+ */
+ HRelease(p, hp_start + need, hp_start);
- *res = map;
- return 1;
+ *res = map;
+ return 1;
found_key:
- /* Copy rest of keys and values */
- if (--n) {
- sys_memcpy(mhp, vs+1, n*sizeof(Eterm));
- sys_memcpy(thp, ks+1, n*sizeof(Eterm));
+ /* Copy rest of keys and values */
+ if (--n) {
+ sys_memcpy(mhp, vs+1, n*sizeof(Eterm));
+ sys_memcpy(thp, ks+1, n*sizeof(Eterm));
+ }
+ return 1;
}
+ ASSERT(is_hashmap(map));
+ hx = hashmap_make_hash(key);
+ *res = hashmap_delete(p, hx, key, map);
return 1;
}
@@ -686,21 +1460,20 @@ BIF_RETTYPE maps_remove_2(BIF_ALIST_2) {
BIF_ERROR(BIF_P, BADARG);
}
-/* maps:update/3
- */
-
int erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res) {
+ Uint32 hx;
+ if (is_flatmap(map)) {
Sint n,i;
Eterm* hp,*shp;
Eterm *ks,*vs;
- map_t *mp = (map_t*)map_val(map);
+ flatmap_t *mp = (flatmap_t*)flatmap_val(map);
- if ((n = map_get_size(mp)) == 0) {
+ if ((n = flatmap_get_size(mp)) == 0) {
return 0;
}
- ks = map_get_keys(mp);
- vs = map_get_values(mp);
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
/* only allocate for values,
* assume key-tuple will be intact
@@ -738,10 +1511,147 @@ found_key:
vs++;
if (++i < n)
sys_memcpy(hp, vs, (n - i)*sizeof(Eterm));
- *res = make_map(shp);
+ *res = make_flatmap(shp);
+ return 1;
+ }
+
+ ASSERT(is_hashmap(map));
+ hx = hashmap_make_hash(key);
+ *res = erts_hashmap_insert(p, hx, key, value, map, 1);
+ if (is_value(*res))
return 1;
+
+ return 0;
+}
+
+Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map) {
+ Uint32 hx;
+ Eterm res;
+ if (is_flatmap(map)) {
+ Sint n,i;
+ Sint c = 0;
+ Eterm* hp, *shp;
+ Eterm *ks, *vs, tup;
+ flatmap_t *mp = (flatmap_t*)flatmap_val(map);
+
+ n = flatmap_get_size(mp);
+
+ if (n == 0) {
+ hp = HAlloc(p, MAP_HEADER_SIZE + 1 + 2);
+ tup = make_tuple(hp);
+ *hp++ = make_arityval(1);
+ *hp++ = key;
+ res = make_flatmap(hp);
+ *hp++ = MAP_HEADER;
+ *hp++ = 1;
+ *hp++ = tup;
+ *hp++ = value;
+
+ return res;
+ }
+
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
+
+ /* only allocate for values,
+ * assume key-tuple will be intact
+ */
+
+ hp = HAlloc(p, MAP_HEADER_SIZE + n);
+ shp = hp; /* save hp, used if optimistic update fails */
+ res = make_flatmap(hp);
+ *hp++ = MAP_HEADER;
+ *hp++ = n;
+ *hp++ = mp->keys;
+
+ if (is_immed(key)) {
+ for( i = 0; i < n; i ++) {
+ if (ks[i] == key) {
+ *hp++ = value;
+ vs++;
+ c = 1;
+ } else {
+ *hp++ = *vs++;
+ }
+ }
+ } else {
+ for( i = 0; i < n; i ++) {
+ if (EQ(ks[i], key)) {
+ *hp++ = value;
+ vs++;
+ c = 1;
+ } else {
+ *hp++ = *vs++;
+ }
+ }
+ }
+
+ if (c)
+ return res;
+
+ /* the map will grow */
+
+ if (n >= MAP_SMALL_MAP_LIMIT) {
+ HRelease(p, shp + MAP_HEADER_SIZE + n, shp);
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
+
+ res = erts_hashmap_from_ks_and_vs_extra(p,ks,vs,n,key,value);
+
+ return res;
+ }
+
+ /* still a small map. need to make a new tuple,
+ * use old hp since it needs to be recreated anyway. */
+
+ tup = make_tuple(shp);
+ *shp++ = make_arityval(n+1);
+
+ hp = HAlloc(p, 3 + n + 1);
+ res = make_flatmap(hp);
+ *hp++ = MAP_HEADER;
+ *hp++ = n + 1;
+ *hp++ = tup;
+
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
+
+ ASSERT(n >= 0);
+
+ /* copy map in order */
+ while (n && ((c = CMP_TERM(*ks, key)) < 0)) {
+ *shp++ = *ks++;
+ *hp++ = *vs++;
+ n--;
+ }
+
+ *shp++ = key;
+ *hp++ = value;
+
+ ASSERT(n >= 0);
+
+ while(n--) {
+ *shp++ = *ks++;
+ *hp++ = *vs++;
+ }
+ /* we have one word remaining
+ * this will work out fine once we get the size word
+ * in the header.
+ */
+ *shp = make_pos_bignum_header(0);
+ return res;
+ }
+ ASSERT(is_hashmap(map));
+
+ hx = hashmap_make_hash(key);
+ res = erts_hashmap_insert(p, hx, key, value, map, 0);
+ ASSERT(is_hashmap(res));
+
+ return res;
}
+/* maps:update/3 */
+
BIF_RETTYPE maps_update_3(BIF_ALIST_3) {
if (is_map(BIF_ARG_3)) {
Eterm res;
@@ -753,38 +1663,845 @@ BIF_RETTYPE maps_update_3(BIF_ALIST_3) {
}
-/* maps:values/1
- */
+/* maps:values/1 */
BIF_RETTYPE maps_values_1(BIF_ALIST_1) {
- if (is_map(BIF_ARG_1)) {
+ if (is_flatmap(BIF_ARG_1)) {
Eterm *hp, *vs, res = NIL;
- map_t *mp;
+ flatmap_t *mp;
Uint n;
- mp = (map_t*)map_val(BIF_ARG_1);
- n = map_get_size(mp);
+ mp = (flatmap_t*)flatmap_val(BIF_ARG_1);
+ n = flatmap_get_size(mp);
if (n == 0)
BIF_RET(res);
hp = HAlloc(BIF_P, (2 * n));
- vs = map_get_values(mp);
+ vs = flatmap_get_values(mp);
while(n--) {
res = CONS(hp, vs[n], res); hp += 2;
}
BIF_RET(res);
+ } else if (is_hashmap(BIF_ARG_1)) {
+ BIF_RET(hashmap_values(BIF_P, BIF_ARG_1));
}
BIF_ERROR(BIF_P, BADARG);
}
-int erts_validate_and_sort_map(map_t* mp)
+static Eterm hashmap_to_list(Process *p, Eterm node) {
+ DECLARE_WSTACK(stack);
+ Eterm *hp, *kv;
+ Eterm res = NIL;
+
+ hp = HAlloc(p, hashmap_size(node) * (2 + 3));
+ hashmap_iterator_init(&stack, node, 0);
+ while ((kv=hashmap_iterator_next(&stack)) != NULL) {
+ Eterm tup = TUPLE2(hp, CAR(kv), CDR(kv));
+ hp += 3;
+ res = CONS(hp, tup, res);
+ hp += 2;
+ }
+ DESTROY_WSTACK(stack);
+ return res;
+}
+
+void hashmap_iterator_init(ErtsWStack* s, Eterm node, int reverse) {
+ Eterm hdr = *hashmap_val(node);
+ Uint sz;
+
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ sz = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ break;
+ default:
+ erl_exit(1, "bad header");
+ }
+
+ WSTACK_PUSH3((*s), (UWord)THE_NON_VALUE, /* end marker */
+ (UWord)(!reverse ? 0 : sz+1),
+ (UWord)node);
+}
+
+Eterm* hashmap_iterator_next(ErtsWStack* s) {
+ Eterm node, *ptr, hdr;
+ Uint32 sz;
+ Uint idx;
+
+ for (;;) {
+ ASSERT(!WSTACK_ISEMPTY((*s)));
+ node = (Eterm) WSTACK_POP((*s));
+ if (is_non_value(node)) {
+ return NULL;
+ }
+ idx = (Uint) WSTACK_POP((*s));
+ for (;;) {
+ ASSERT(is_boxed(node));
+ ptr = boxed_val(node);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ ptr++;
+ case HAMT_SUBTAG_NODE_ARRAY:
+ sz = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ ptr++;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ASSERT(sz < 17);
+ break;
+ default:
+ erl_exit(1, "bad header");
+ }
+
+ idx++;
+
+ if (idx <= sz) {
+ WSTACK_PUSH2((*s), (UWord)idx, (UWord)node);
+
+ if (is_list(ptr[idx])) {
+ return list_val(ptr[idx]);
+ }
+ ASSERT(is_boxed(ptr[idx]));
+ node = ptr[idx];
+ idx = 0;
+ }
+ else
+ break; /* and pop parent node */
+ }
+ }
+}
+
+Eterm* hashmap_iterator_prev(ErtsWStack* s) {
+ Eterm node, *ptr, hdr;
+ Uint32 sz;
+ Uint idx;
+
+ for (;;) {
+ ASSERT(!WSTACK_ISEMPTY((*s)));
+ node = (Eterm) WSTACK_POP((*s));
+ if (is_non_value(node)) {
+ return NULL;
+ }
+ idx = (Uint) WSTACK_POP((*s));
+ for (;;) {
+ ASSERT(is_boxed(node));
+ ptr = boxed_val(node);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ ptr++;
+ case HAMT_SUBTAG_NODE_ARRAY:
+ sz = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ ptr++;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ASSERT(sz < 17);
+ break;
+ default:
+ erl_exit(1, "bad header");
+ }
+
+ if (idx > sz)
+ idx = sz;
+ else
+ idx--;
+
+ if (idx >= 1) {
+ WSTACK_PUSH2((*s), (UWord)idx, (UWord)node);
+
+ if (is_list(ptr[idx])) {
+ return list_val(ptr[idx]);
+ }
+ ASSERT(is_boxed(ptr[idx]));
+ node = ptr[idx];
+ idx = 17;
+ }
+ else
+ break; /* and pop parent node */
+ }
+ }
+}
+
+const Eterm *
+#if HALFWORD_HEAP
+erts_hashmap_get_rel(Uint32 hx, Eterm key, Eterm node, Eterm *map_base)
+#else
+erts_hashmap_get(Uint32 hx, Eterm key, Eterm node)
+#endif
{
- Eterm *ks = map_get_keys(mp);
- Eterm *vs = map_get_values(mp);
- Uint sz = map_get_size(mp);
+ Eterm *ptr, hdr;
+ Uint ix,slot, lvl = 0;
+ Uint32 hval,bp;
+ DeclareTmpHeapNoproc(th,2);
+ UseTmpHeapNoproc(2);
+
+ for (;;) {
+ switch(primary_tag(node)) {
+ case TAG_PRIMARY_LIST: /* LEAF NODE [K|V] */
+ ptr = list_val(node);
+ UnUseTmpHeapNoproc(2);
+
+ if (eq_rel(CAR(ptr), map_base, key, NULL)) {
+ return &(CDR(ptr));
+ }
+ return NULL;
+ case TAG_PRIMARY_BOXED:
+ ptr = boxed_val(node);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_NODE_ARRAY:
+ ix = hashmap_index(hx);
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ node = ptr[ix+1];
+ break;
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ ix = hashmap_index(hx);
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ node = ptr[ix+2];
+ break;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ hval = MAP_HEADER_VAL(hdr);
+ ix = hashmap_index(hx);
+ bp = 1 << ix;
+ slot = hashmap_bitcount(hval & (bp - 1));
+
+ /* occupied */
+ if (bp & hval) {
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ node = ptr[slot+1];
+ break;
+ }
+ /* not occupied */
+ UnUseTmpHeapNoproc(2);
+ return NULL;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ hval = MAP_HEADER_VAL(hdr);
+ ix = hashmap_index(hx);
+ bp = 1 << ix;
+ slot = hashmap_bitcount(hval & (bp - 1));
+
+ /* occupied */
+ if (bp & hval) {
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ node = ptr[slot+2];
+ break;
+ }
+ /* not occupied */
+ UnUseTmpHeapNoproc(2);
+ return NULL;
+ default:
+ erl_exit(1, "bad header tag %ld\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+ break;
+ }
+ break;
+ default:
+ erl_exit(1, "bad primary tag %p\r\n", node);
+ break;
+ }
+ }
+ UnUseTmpHeapNoproc(2);
+ return NULL;
+}
+
+Eterm erts_hashmap_insert(Process *p, Uint32 hx, Eterm key, Eterm value,
+ Eterm map, int is_update) {
+ Uint size, upsz;
+ Eterm *hp, res = THE_NON_VALUE;
+ DECLARE_ESTACK(stack);
+ if (erts_hashmap_insert_down(hx, key, map, &size, &upsz, &stack, is_update)) {
+ hp = HAlloc(p, size);
+ res = erts_hashmap_insert_up(hp, key, value, &upsz, &stack);
+ }
+
+ DESTROY_ESTACK(stack);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+ ERTS_HOLE_CHECK(p);
+
+ return res;
+}
+
+
+int erts_hashmap_insert_down(Uint32 hx, Eterm key, Eterm node, Uint *sz,
+ Uint *update_size, ErtsEStack *sp, int is_update) {
+ Eterm *ptr;
+ Eterm hdr, ckey;
+ Eterm th[2];
+ Uint32 ix, cix, bp, hval, chx;
+ Uint slot, lvl = 0, clvl;
+ Uint size = 0, n = 0;
+
+ *update_size = 1;
+
+ for (;;) {
+ switch(primary_tag(node)) {
+ case TAG_PRIMARY_LIST: /* LEAF NODE [K|V] */
+ ptr = list_val(node);
+ ckey = CAR(ptr);
+ if (EQ(ckey, key)) {
+ *update_size = 0;
+ goto unroll;
+ }
+ if (is_update) {
+ return 0;
+ }
+ goto insert_subnodes;
+ case TAG_PRIMARY_BOXED:
+ ptr = boxed_val(node);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_NODE_ARRAY:
+ ix = hashmap_index(hx);
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ size += HAMT_NODE_ARRAY_SZ;
+ ESTACK_PUSH2(*sp, ix, node);
+ node = ptr[ix+1];
+ break;
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ ix = hashmap_index(hx);
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ size += HAMT_HEAD_ARRAY_SZ;
+ ESTACK_PUSH2(*sp, ix, node);
+ node = ptr[ix+2];
+ break;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ hval = MAP_HEADER_VAL(hdr);
+ ix = hashmap_index(hx);
+ bp = 1 << ix;
+ slot = hashmap_bitcount(hval & (bp - 1));
+ n = hashmap_bitcount(hval);
+
+ ESTACK_PUSH(*sp, n);
+ ESTACK_PUSH3(*sp, bp, slot, node);
+
+ /* occupied */
+ if (bp & hval) {
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ node = ptr[slot+1];
+ ASSERT(HAMT_NODE_BITMAP_SZ(n) <= 17);
+ size += HAMT_NODE_BITMAP_SZ(n);
+ break;
+ }
+ /* not occupied */
+ if (is_update) {
+ return 0;
+ }
+ size += HAMT_NODE_BITMAP_SZ(n+1);
+ goto unroll;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ hval = MAP_HEADER_VAL(hdr);
+ ix = hashmap_index(hx);
+ bp = 1 << ix;
+ slot = hashmap_bitcount(hval & (bp - 1));
+ n = hashmap_bitcount(hval);
+
+ ESTACK_PUSH(*sp, n);
+ ESTACK_PUSH3(*sp, bp, slot, node);
+
+ /* occupied */
+ if (bp & hval) {
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ node = ptr[slot+2];
+ ASSERT(HAMT_HEAD_BITMAP_SZ(n) <= 18);
+ size += HAMT_HEAD_BITMAP_SZ(n);
+ break;
+ }
+ /* not occupied */
+ if (is_update) {
+ return 0;
+ }
+ size += HAMT_HEAD_BITMAP_SZ(n+1);
+ goto unroll;
+ default:
+ erl_exit(1, "bad header tag %ld\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+ break;
+ }
+ break;
+ default:
+ erl_exit(1, "bad primary tag %p\r\n", node);
+ break;
+ }
+ }
+insert_subnodes:
+ clvl = lvl;
+ chx = hashmap_restore_hash(th,clvl,ckey);
+ size += HAMT_NODE_BITMAP_SZ(2);
+ ix = hashmap_index(hx);
+ cix = hashmap_index(chx);
+
+ while (cix == ix) {
+ ESTACK_PUSH(*sp, 0);
+ ESTACK_PUSH3(*sp, 1 << ix, 0, MAP_HEADER_HAMT_NODE_BITMAP(0));
+ size += HAMT_NODE_BITMAP_SZ(1);
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ chx = hashmap_shift_hash(th,chx,clvl,ckey);
+ ix = hashmap_index(hx);
+ cix = hashmap_index(chx);
+ }
+ ESTACK_PUSH3(*sp, cix, ix, node);
+
+unroll:
+ *sz = size + /* res cons */ 2;
+ return 1;
+}
+
+Eterm erts_hashmap_insert_up(Eterm *hp, Eterm key, Eterm value,
+ Uint *update_size, ErtsEStack *sp) {
+ Eterm node, *ptr, hdr;
+ Eterm res;
+ Eterm *nhp = NULL;
+ Uint32 ix, cix, bp, hval;
+ Uint slot, n;
+ /* Needed for halfword */
+ DeclareTmpHeapNoproc(fake,1);
+ UseTmpHeapNoproc(1);
+
+ res = CONS(hp, key, value); hp += 2;
+
+ do {
+ node = ESTACK_POP(*sp);
+ switch(primary_tag(node)) {
+ case TAG_PRIMARY_LIST:
+ ix = (Uint32) ESTACK_POP(*sp);
+ cix = (Uint32) ESTACK_POP(*sp);
+
+ nhp = hp;
+ *hp++ = MAP_HEADER_HAMT_NODE_BITMAP((1 << ix) | (1 << cix));
+ if (ix < cix) {
+ *hp++ = res;
+ *hp++ = node;
+ } else {
+ *hp++ = node;
+ *hp++ = res;
+ }
+ res = make_hashmap(nhp);
+ break;
+ case TAG_PRIMARY_HEADER:
+ /* subnodes, fake it */
+ *fake = node;
+ node = make_boxed(fake);
+ case TAG_PRIMARY_BOXED:
+ ptr = boxed_val(node);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_NODE_ARRAY:
+ slot = (Uint) ESTACK_POP(*sp);
+ nhp = hp;
+ n = HAMT_NODE_ARRAY_SZ;
+ while(n--) { *hp++ = *ptr++; }
+ nhp[slot+1] = res;
+ res = make_hashmap(nhp);
+ break;
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ slot = (Uint) ESTACK_POP(*sp);
+ nhp = hp;
+ n = HAMT_HEAD_ARRAY_SZ - 2;
+ *hp++ = MAP_HEADER_HAMT_HEAD_ARRAY; ptr++;
+ *hp++ = (*ptr++) + *update_size;
+ while(n--) { *hp++ = *ptr++; }
+ nhp[slot+2] = res;
+ res = make_hashmap(nhp);
+ break;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ slot = (Uint) ESTACK_POP(*sp);
+ bp = (Uint32) ESTACK_POP(*sp);
+ n = (Uint32) ESTACK_POP(*sp);
+ hval = MAP_HEADER_VAL(hdr);
+ nhp = hp;
+ *hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hval | bp); ptr++;
+
+ n -= slot;
+ while(slot--) { *hp++ = *ptr++; }
+ *hp++ = res;
+ if (hval & bp) { ptr++; n--; }
+ while(n--) { *hp++ = *ptr++; }
+
+ if ((hval | bp) == 0xffff) {
+ *nhp = make_arityval(16);
+ }
+ res = make_hashmap(nhp);
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ slot = (Uint) ESTACK_POP(*sp);
+ bp = (Uint32) ESTACK_POP(*sp);
+ n = (Uint32) ESTACK_POP(*sp);
+ hval = MAP_HEADER_VAL(hdr);
+ nhp = hp;
+ *hp++ = MAP_HEADER_HAMT_HEAD_BITMAP(hval | bp); ptr++;
+ *hp++ = (*ptr++) + *update_size;
+
+ n -= slot;
+ while(slot--) { *hp++ = *ptr++; }
+ *hp++ = res;
+ if (hval & bp) { ptr++; n--; }
+ while(n--) { *hp++ = *ptr++; }
+
+ if ((hval | bp) == 0xffff) {
+ *nhp = MAP_HEADER_HAMT_HEAD_ARRAY;
+ }
+ res = make_hashmap(nhp);
+ break;
+ default:
+ erl_exit(1, "bad header tag %x\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+ break;
+ }
+ break;
+ default:
+ erl_exit(1, "bad primary tag %x\r\n", primary_tag(node));
+ break;
+ }
+
+ } while(!ESTACK_ISEMPTY(*sp));
+
+ UnUseTmpHeapNoproc(1);
+ return res;
+}
+
+static Eterm hashmap_keys(Process* p, Eterm node) {
+ DECLARE_WSTACK(stack);
+ hashmap_head_t* root;
+ Eterm *hp, *kv;
+ Eterm res = NIL;
+
+ root = (hashmap_head_t*) boxed_val(node);
+ hp = HAlloc(p, root->size * 2);
+ hashmap_iterator_init(&stack, node, 0);
+ while ((kv=hashmap_iterator_next(&stack)) != NULL) {
+ res = CONS(hp, CAR(kv), res);
+ hp += 2;
+ }
+ DESTROY_WSTACK(stack);
+ return res;
+}
+
+static Eterm hashmap_values(Process* p, Eterm node) {
+ DECLARE_WSTACK(stack);
+ hashmap_head_t* root;
+ Eterm *hp, *kv;
+ Eterm res = NIL;
+
+ root = (hashmap_head_t*) boxed_val(node);
+ hp = HAlloc(p, root->size * 2);
+ hashmap_iterator_init(&stack, node, 0);
+ while ((kv=hashmap_iterator_next(&stack)) != NULL) {
+ res = CONS(hp, CDR(kv), res);
+ hp += 2;
+ }
+ DESTROY_WSTACK(stack);
+ return res;
+}
+
+static Eterm hashmap_delete(Process *p, Uint32 hx, Eterm key, Eterm map) {
+ Eterm *hp = NULL, *nhp = NULL, *hp_end = NULL;
+ Eterm th[2];
+ Eterm *ptr;
+ Eterm hdr, res = map, node = map;
+ Uint32 ix, bp, hval;
+ Uint slot, lvl = 0;
+ Uint size = 0, n = 0;
+ DECLARE_ESTACK(stack);
+
+ for (;;) {
+ switch(primary_tag(node)) {
+ case TAG_PRIMARY_LIST:
+ if (EQ(CAR(list_val(node)), key)) {
+ goto unroll;
+ }
+ goto not_found;
+ case TAG_PRIMARY_BOXED:
+ ptr = boxed_val(node);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_NODE_ARRAY:
+ ix = hashmap_index(hx);
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ size += HAMT_NODE_ARRAY_SZ;
+ ESTACK_PUSH2(stack, ix, node);
+ node = ptr[ix+1];
+ break;
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ ix = hashmap_index(hx);
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ size += HAMT_HEAD_ARRAY_SZ;
+ ESTACK_PUSH2(stack, ix, node);
+ node = ptr[ix+2];
+ break;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ hval = MAP_HEADER_VAL(hdr);
+ ix = hashmap_index(hx);
+ bp = 1 << ix;
+ slot = hashmap_bitcount(hval & (bp - 1));
+ n = hashmap_bitcount(hval);
+
+ ESTACK_PUSH(stack, n);
+ ESTACK_PUSH3(stack, bp, slot, node);
+
+ /* occupied */
+ if (bp & hval) {
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ node = ptr[slot+1];
+ ASSERT(HAMT_NODE_BITMAP_SZ(n) <= 17);
+ size += HAMT_NODE_BITMAP_SZ(n);
+ break;
+ }
+ /* not occupied */
+ goto not_found;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ hval = MAP_HEADER_VAL(hdr);
+ ix = hashmap_index(hx);
+ bp = 1 << ix;
+ slot = hashmap_bitcount(hval & (bp - 1));
+ n = hashmap_bitcount(hval);
+
+ ESTACK_PUSH(stack, n);
+ ESTACK_PUSH3(stack, bp, slot, node);
+
+ /* occupied */
+ if (bp & hval) {
+ hx = hashmap_shift_hash(th,hx,lvl,key);
+ node = ptr[slot+2];
+ ASSERT(HAMT_HEAD_BITMAP_SZ(n) <= 18);
+ size += HAMT_HEAD_BITMAP_SZ(n);
+ break;
+ }
+ /* not occupied */
+ goto not_found;
+ default:
+ erl_exit(1, "bad header tag %ld\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+ break;
+ }
+ break;
+ default:
+ erl_exit(1, "bad primary tag %p\r\n", node);
+ break;
+ }
+ }
+
+unroll:
+ /* the size is bounded and atleast one less than the previous size */
+ size -= 1;
+ n = hashmap_size(map) - 1;
+
+ if (n <= MAP_SMALL_MAP_LIMIT) {
+ DECLARE_WSTACK(wstack);
+ Eterm *kv, *ks, *vs;
+ flatmap_t *mp;
+ Eterm keys;
+
+ DESTROY_ESTACK(stack);
+
+ /* build flat structure */
+ hp = HAlloc(p, 3 + 1 + (2 * n));
+ keys = make_tuple(hp);
+ *hp++ = make_arityval(n);
+ ks = hp;
+ hp += n;
+ mp = (flatmap_t*)hp;
+ hp += MAP_HEADER_SIZE;
+ vs = hp;
+
+ mp->thing_word = MAP_HEADER;
+ mp->size = n;
+ mp->keys = keys;
+
+ hashmap_iterator_init(&wstack, map, 0);
+
+ while ((kv=hashmap_iterator_next(&wstack)) != NULL) {
+ if (EQ(CAR(kv),key))
+ continue;
+ *ks++ = CAR(kv);
+ *vs++ = CDR(kv);
+ }
+
+ /* it cannot have multiple keys */
+ erts_validate_and_sort_flatmap(mp);
+
+ DESTROY_WSTACK(wstack);
+ return make_flatmap(mp);
+ }
+
+ hp = HAlloc(p, size);
+ hp_end = hp + size;
+ res = THE_NON_VALUE;
+
+ do {
+ node = ESTACK_POP(stack);
+
+ /* all nodes are things */
+ ptr = boxed_val(node);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_NODE_ARRAY:
+ ix = (Uint) ESTACK_POP(stack);
+ nhp = hp;
+ if (res == THE_NON_VALUE) {
+ *hp++ = MAP_HEADER_HAMT_NODE_BITMAP(0xffff ^ (1 << ix)); ptr++;
+ n = 16;
+ n -= ix;
+ while(ix--) { *hp++ = *ptr++; }
+ ptr++; n--;
+ while(n--) { *hp++ = *ptr++; }
+ res = make_hashmap(nhp);
+ } else {
+ n = HAMT_NODE_ARRAY_SZ;
+ while(n--) { *hp++ = *ptr++; }
+ nhp[ix+1] = res;
+ res = make_hashmap(nhp);
+ }
+ break;
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ ix = (Uint) ESTACK_POP(stack);
+ nhp = hp;
+ if (res == THE_NON_VALUE) {
+ n = 16;
+ n -= ix;
+ *hp++ = MAP_HEADER_HAMT_HEAD_BITMAP(0xffff ^ (1 << ix)); ptr++;
+ *hp++ = (*ptr++) - 1;
+ while(ix--) { *hp++ = *ptr++; }
+ ptr++; n--;
+ while(n--) { *hp++ = *ptr++; }
+ res = make_hashmap(nhp);
+ } else {
+ n = 16;
+ *hp++ = MAP_HEADER_HAMT_HEAD_ARRAY; ptr++;
+ *hp++ = (*ptr++) - 1;
+ while(n--) { *hp++ = *ptr++; }
+ nhp[ix+2] = res;
+ res = make_hashmap(nhp);
+ }
+ break;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ slot = (Uint) ESTACK_POP(stack);
+ bp = (Uint32) ESTACK_POP(stack);
+ n = (Uint32) ESTACK_POP(stack);
+ nhp = hp;
+
+ /* bitmap change matrix
+ * res | none leaf bitmap
+ * ----------------------------
+ * n=1 | remove remove keep
+ * n=2 | other keep keep
+ * n>2 | shrink keep keep
+ *
+ * other: (remember, n is 2)
+ * shrink if the other bitmap value is a bitmap node
+ * remove if the other bitmap value is a leaf
+ *
+ * remove:
+ * this bitmap node is removed, res is moved up in tree (could be none)
+ * this is a special case of shrink
+ *
+ * keep:
+ * the current path index is still used down in the tree, need to keep it
+ * copy as usual with the updated res
+ *
+ * shrink:
+ * the current path index is no longer used down in the tree, remove it (shrink)
+ */
+ if (res == THE_NON_VALUE) {
+ if (n == 1) {
+ break;
+ } else if (n == 2) {
+ if (slot == 0) {
+ ix = 2; /* off by one 'cause hdr */
+ } else {
+ ix = 1; /* off by one 'cause hdr */
+ }
+ if (primary_tag(ptr[ix]) == TAG_PRIMARY_LIST) {
+ res = ptr[ix];
+ } else {
+ hval = MAP_HEADER_VAL(hdr);
+ *hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hval ^ bp);
+ *hp++ = ptr[ix];
+ res = make_hashmap(nhp);
+ }
+ } else {
+ /* n > 2 */
+ hval = MAP_HEADER_VAL(hdr);
+ *hp++ = MAP_HEADER_HAMT_NODE_BITMAP(hval ^ bp); ptr++;
+ n -= slot;
+ while(slot--) { *hp++ = *ptr++; }
+ ptr++; n--;
+ while(n--) { *hp++ = *ptr++; }
+ res = make_hashmap(nhp);
+ }
+ } else if (primary_tag(res) == TAG_PRIMARY_LIST && n == 1) {
+ break;
+ } else {
+ /* res is bitmap or leaf && n > 1, keep */
+ n -= slot;
+ *hp++ = *ptr++;
+ while(slot--) { *hp++ = *ptr++; }
+ *hp++ = res;
+ ptr++; n--;
+ while(n--) { *hp++ = *ptr++; }
+ res = make_hashmap(nhp);
+ }
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ slot = (Uint) ESTACK_POP(stack);
+ bp = (Uint32) ESTACK_POP(stack);
+ n = (Uint32) ESTACK_POP(stack);
+ nhp = hp;
+
+ if (res != THE_NON_VALUE) {
+ *hp++ = *ptr++;
+ *hp++ = (*ptr++) - 1;
+ n -= slot;
+ while(slot--) { *hp++ = *ptr++; }
+ *hp++ = res;
+ ptr++; n--;
+ while(n--) { *hp++ = *ptr++; }
+ } else {
+ hval = MAP_HEADER_VAL(hdr);
+ *hp++ = MAP_HEADER_HAMT_HEAD_BITMAP(hval ^ bp); ptr++;
+ *hp++ = (*ptr++) - 1;
+ n -= slot;
+ while(slot--) { *hp++ = *ptr++; }
+ ptr++; n--;
+ while(n--) { *hp++ = *ptr++; }
+ }
+ res = make_hashmap(nhp);
+ break;
+ default:
+ erl_exit(1, "bad header tag %x\r\n", hdr & _HEADER_MAP_SUBTAG_MASK);
+ break;
+ }
+ } while(!ESTACK_ISEMPTY(stack));
+ HRelease(p, hp_end, hp);
+not_found:
+ DESTROY_ESTACK(stack);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
+ ERTS_HOLE_CHECK(p);
+ return res;
+}
+
+
+int erts_validate_and_sort_flatmap(flatmap_t* mp)
+{
+ Eterm *ks = flatmap_get_keys(mp);
+ Eterm *vs = flatmap_get_values(mp);
+ Uint sz = flatmap_get_size(mp);
Uint ix,jx;
Eterm tmp;
int c;
@@ -811,6 +2528,50 @@ int erts_validate_and_sort_map(map_t* mp)
return 1;
}
+/* Really rough estimate of sqrt(x)
+ * Guaranteed not to be less than sqrt(x)
+ */
+static int int_sqrt_ceiling(Uint x)
+{
+ int n;
+
+ if (x <= 2)
+ return x;
+
+ n = erts_fit_in_bits_uint(x-1);
+ if (n & 1) {
+ /* Calc: sqrt(2^n) = 2^(n/2) * sqrt(2) ~= 2^(n/2) * 3 / 2 */
+ return (1 << (n/2 - 1)) * 3;
+ }
+ else {
+ /* Calc: sqrt(2^n) = 2^(n/2) */
+ return 1 << (n / 2);
+ }
+}
+
+Uint hashmap_over_estimated_heap_size(Uint n)
+{
+ /* n is nr of key-value pairs.
+ Average nr of nodes is about n/3.
+ Standard deviation is about sqrt(n)/3.
+ Assuming normal probability distribution,
+ we overestimate nr of nodes by 14 std.devs, which gives a probability
+ for overrun of 1.0e-49 (same magnitude as a git SHA1 collision).
+ */
+ Uint nodes = (n + int_sqrt_ceiling(n)*14) / 3;
+ return (n*2 + /* leaf cons cells */
+ n + /* leaf list terms */
+ nodes*2); /* headers + parent refs */
+}
+
+
+BIF_RETTYPE erts_debug_map_info_1(BIF_ALIST_1) {
+ if (is_hashmap(BIF_ARG_1)) {
+ BIF_RET(hashmap_info(BIF_P,BIF_ARG_1));
+ }
+ BIF_ERROR(BIF_P, BADARG);
+}
+
/*
* erts_internal:map_to_tuple_keys/1
*
@@ -818,9 +2579,233 @@ int erts_validate_and_sort_map(map_t* mp)
*/
BIF_RETTYPE erts_internal_map_to_tuple_keys_1(BIF_ALIST_1) {
- if (is_map(BIF_ARG_1)) {
- map_t *mp = (map_t*)map_val(BIF_ARG_1);
+ if (is_flatmap(BIF_ARG_1)) {
+ flatmap_t *mp = (flatmap_t*)flatmap_val(BIF_ARG_1);
BIF_RET(mp->keys);
}
BIF_ERROR(BIF_P, BADARG);
}
+
+/*
+ * erts_internal:map_type/1
+ *
+ * Used in erts_debug:size/1
+ */
+
+BIF_RETTYPE erts_internal_map_type_1(BIF_ALIST_1) {
+ DECL_AM(hashmap);
+ DECL_AM(hashmap_node);
+ DECL_AM(flatmap);
+ if (is_flatmap(BIF_ARG_1)) {
+ BIF_RET(AM_flatmap);
+ } else if (is_hashmap(BIF_ARG_1)) {
+ Eterm hdr = *(boxed_val(BIF_ARG_1));
+ ASSERT(is_header(hdr));
+ switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ BIF_RET(AM_hashmap);
+ case HAMT_SUBTAG_NODE_ARRAY:
+ case HAMT_SUBTAG_NODE_BITMAP:
+ BIF_RET(AM_hashmap_node);
+ default:
+ erl_exit(1, "bad header");
+ }
+ }
+ BIF_ERROR(BIF_P, BADARG);
+}
+
+/*
+ * erts_internal:map_hashmap_children/1
+ *
+ * Used in erts_debug:size/1
+ */
+
+BIF_RETTYPE erts_internal_map_hashmap_children_1(BIF_ALIST_1) {
+ if (is_hashmap(BIF_ARG_1)) {
+ Eterm node = BIF_ARG_1;
+ Eterm *ptr, hdr, *hp, res = NIL;
+ Uint sz = 0;
+ ptr = boxed_val(node);
+ hdr = *ptr;
+
+ ASSERT(is_header(hdr));
+
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_NODE_ARRAY:
+ sz = 16;
+ ptr += 1;
+ break;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ptr += 1;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ptr += 2;
+ break;
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ sz = 16;
+ ptr += 2;
+ break;
+ default:
+ erl_exit(1, "bad header\r\n");
+ break;
+ }
+ ASSERT(sz < 17);
+ hp = HAlloc(BIF_P, 2*sz);
+ while(sz--) { res = CONS(hp, *ptr++, res); hp += 2; }
+ BIF_RET(res);
+ }
+ BIF_ERROR(BIF_P, BADARG);
+}
+
+
+static Eterm hashmap_info(Process *p, Eterm node) {
+ Eterm *hp;
+ Eterm res = NIL, info = NIL;
+ Eterm *ptr, tup, hdr;
+ Uint sz;
+ DECL_AM(depth);
+ DECL_AM(leafs);
+ DECL_AM(bitmaps);
+ DECL_AM(arrays);
+ Uint nleaf=0, nbitmap=0, narray=0;
+ Uint bitmap_usage[16], leaf_usage[16];
+ Uint lvl = 0, clvl;
+ DECLARE_ESTACK(stack);
+
+ for (sz = 0; sz < 16; sz++) {
+ bitmap_usage[sz] = 0;
+ leaf_usage[sz] = 0;
+ }
+
+ ptr = boxed_val(node);
+ ESTACK_PUSH(stack, 0);
+ ESTACK_PUSH(stack, node);
+ do {
+ node = ESTACK_POP(stack);
+ clvl = ESTACK_POP(stack);
+ if (lvl < clvl)
+ lvl = clvl;
+ switch(primary_tag(node)) {
+ case TAG_PRIMARY_LIST:
+ nleaf++;
+ leaf_usage[clvl] += 1;
+ break;
+ case TAG_PRIMARY_BOXED:
+ ptr = boxed_val(node);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_NODE_ARRAY:
+ narray++;
+ sz = 16;
+ while(sz--) {
+ ESTACK_PUSH(stack, clvl + 1);
+ ESTACK_PUSH(stack, ptr[sz+1]);
+ }
+ break;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ nbitmap++;
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ASSERT(sz < 17);
+ bitmap_usage[sz-1] += 1;
+ while(sz--) {
+ ESTACK_PUSH(stack, clvl + 1);
+ ESTACK_PUSH(stack, ptr[sz+1]);
+ }
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ nbitmap++;
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ bitmap_usage[sz-1] += 1;
+ while(sz--) {
+ ESTACK_PUSH(stack, clvl + 1);
+ ESTACK_PUSH(stack, ptr[sz+2]);
+ }
+ break;
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ narray++;
+ sz = 16;
+ while(sz--) {
+ ESTACK_PUSH(stack, clvl + 1);
+ ESTACK_PUSH(stack, ptr[sz+2]);
+ }
+ break;
+ default:
+ erl_exit(1, "bad header\r\n");
+ break;
+ }
+ }
+ } while(!ESTACK_ISEMPTY(stack));
+
+
+ /* size */
+ sz = 0;
+ hashmap_bld_tuple_uint(NULL,&sz,16,leaf_usage);
+ hashmap_bld_tuple_uint(NULL,&sz,16,bitmap_usage);
+
+ /* alloc */
+ hp = HAlloc(p, 2+3 + 3*(2+4) + sz);
+
+ info = hashmap_bld_tuple_uint(&hp,NULL,16,leaf_usage);
+ tup = TUPLE3(hp, AM_leafs, make_small(nleaf),info); hp += 4;
+ res = CONS(hp, tup, res); hp += 2;
+
+ info = hashmap_bld_tuple_uint(&hp,NULL,16,bitmap_usage);
+ tup = TUPLE3(hp, AM_bitmaps, make_small(nbitmap), info); hp += 4;
+ res = CONS(hp, tup, res); hp += 2;
+
+ tup = TUPLE3(hp, AM_arrays, make_small(narray),NIL); hp += 4;
+ res = CONS(hp, tup, res); hp += 2;
+
+ tup = TUPLE2(hp, AM_depth, make_small(lvl)); hp += 3;
+ res = CONS(hp, tup, res); hp += 2;
+
+ DESTROY_ESTACK(stack);
+ ERTS_HOLE_CHECK(p);
+ return res;
+}
+
+static Eterm hashmap_bld_tuple_uint(Uint **hpp, Uint *szp, Uint n, Uint nums[]) {
+ Eterm res = THE_NON_VALUE;
+ Eterm *ts = (Eterm *)erts_alloc(ERTS_ALC_T_TMP, n * sizeof(Eterm));
+ Uint i;
+
+ for (i = 0; i < n; i++) {
+ ts[i] = erts_bld_uint(hpp, szp, nums[i]);
+ }
+ res = erts_bld_tuplev(hpp, szp, n, ts);
+ erts_free(ERTS_ALC_T_TMP, (void *) ts);
+ return res;
+}
+
+
+/* implementation of builtin emulations */
+
+#if !ERTS_AT_LEAST_GCC_VSN__(3, 4, 0)
+/* Count leading zeros emulation */
+Uint32 hashmap_clz(Uint32 x) {
+ Uint32 y;
+ int n = 32;
+ y = x >>16; if (y != 0) {n = n -16; x = y;}
+ y = x >> 8; if (y != 0) {n = n - 8; x = y;}
+ y = x >> 4; if (y != 0) {n = n - 4; x = y;}
+ y = x >> 2; if (y != 0) {n = n - 2; x = y;}
+ y = x >> 1; if (y != 0) return n - 2;
+ return n - x;
+}
+
+const Uint32 SK5 = 0x55555555, SK3 = 0x33333333;
+const Uint32 SKF0 = 0xF0F0F0F, SKFF = 0xFF00FF;
+
+/* CTPOP emulation */
+Uint32 hashmap_bitcount(Uint32 x) {
+ x -= ((x >> 1 ) & SK5);
+ x = (x & SK3 ) + ((x >> 2 ) & SK3 );
+ x = (x & SKF0) + ((x >> 4 ) & SKF0);
+ x += x >> 8;
+ return (x + (x >> 16)) & 0x3F;
+}
+#endif
diff --git a/erts/emulator/beam/erl_map.h b/erts/emulator/beam/erl_map.h
index 2e02ca4677..1333a734a8 100644
--- a/erts/emulator/beam/erl_map.h
+++ b/erts/emulator/beam/erl_map.h
@@ -22,13 +22,23 @@
#define __ERL_MAP_H__
#include "sys.h"
+
+/* instrinsic wrappers */
+#if ERTS_AT_LEAST_GCC_VSN__(3, 4, 0)
+#define hashmap_clz(x) ((Uint32) __builtin_clz((unsigned int)(x)))
+#define hashmap_bitcount(x) ((Uint32) __builtin_popcount((unsigned int) (x)))
+#else
+Uint32 hashmap_clz(Uint32 x);
+Uint32 hashmap_bitcount(Uint32 x);
+#endif
+
/* MAP */
-typedef struct map_s {
+typedef struct flatmap_s {
Eterm thing_word;
Uint size;
Eterm keys; /* tuple */
-} map_t;
+} flatmap_t;
/* map node
*
* -----------
@@ -42,39 +52,152 @@ typedef struct map_s {
* -----------
*/
+/* the head-node is a bitmap or array with an untagged size */
+
+
+#define hashmap_size(x) (((hashmap_head_t*) hashmap_val(x))->size)
+#define hashmap_size_rel(RTERM, BASE) hashmap_size(rterm2wterm(RTERM, BASE))
+#define hashmap_make_hash(Key) make_internal_hash(Key)
+
+#define hashmap_restore_hash(Heap,Lvl,Key) \
+ (((Lvl) < 8) ? hashmap_make_hash(Key) >> (4*(Lvl)) : hashmap_make_hash(CONS(Heap, make_small((Lvl)>>3), (Key))) >> (4*((Lvl) & 7)))
+#define hashmap_shift_hash(Heap,Hx,Lvl,Key) \
+ (((++(Lvl)) & 7) ? (Hx) >> 4 : hashmap_make_hash(CONS(Heap, make_small((Lvl)>>3), Key)))
/* erl_term.h stuff */
-#define make_map(x) make_boxed((Eterm*)(x))
-#define make_map_rel(x, BASE) make_boxed_rel((Eterm*)(x),(BASE))
-#define is_map(x) (is_boxed((x)) && is_map_header(*boxed_val((x))))
-#define is_map_rel(RTERM,BASE) is_map(rterm2wterm(RTERM,BASE))
-#define is_not_map(x) (!is_map((x)))
-#define is_map_header(x) (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_MAP)
-#define header_is_map(x) ((((x) & (_HEADER_SUBTAG_MASK)) == MAP_SUBTAG))
-#define map_val(x) (_unchecked_boxed_val((x)))
-#define map_val_rel(RTERM, BASE) map_val(rterm2wterm(RTERM, BASE))
-
-#define map_get_values(x) (((Eterm *)(x)) + 3)
-#define map_get_keys(x) (((Eterm *)tuple_val(((map_t *)(x))->keys)) + 1)
-#define map_get_size(x) (((map_t*)(x))->size)
+#define make_flatmap(x) make_boxed((Eterm*)(x))
+#define make_flatmap_rel(x, BASE) make_boxed_rel((Eterm*)(x),(BASE))
+#define is_flatmap(x) (is_boxed((x)) && is_flatmap_header(*boxed_val((x))))
+#define is_flatmap_rel(RTERM,BASE) is_flatmap(rterm2wterm(RTERM,BASE))
+#define is_not_flatmap(x) (!is_flatmap((x)))
+#define is_flatmap_header(x) (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_MAP)
+#define header_is_flatmap(x) ((((x) & (_HEADER_SUBTAG_MASK)) == MAP_SUBTAG))
+#define flatmap_val(x) (_unchecked_boxed_val((x)))
+#define flatmap_val_rel(RTERM, BASE) flatmap_val(rterm2wterm(RTERM, BASE))
+
+#define flatmap_get_values(x) (((Eterm *)(x)) + 3)
+#define flatmap_get_keys(x) (((Eterm *)tuple_val(((flatmap_t *)(x))->keys)) + 1)
+#define flatmap_get_size(x) (((flatmap_t*)(x))->size)
+#ifdef DEBUG
+#define MAP_SMALL_MAP_LIMIT (3)
+#else
+#define MAP_SMALL_MAP_LIMIT (32)
+#endif
#define MAP_HEADER _make_header(1,_TAG_HEADER_MAP)
-#define MAP_HEADER_SIZE (sizeof(map_t) / sizeof(Eterm))
+#define MAP_HEADER_SIZE (sizeof(flatmap_t) / sizeof(Eterm))
-Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map);
-int erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res);
-int erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res);
-int erts_validate_and_sort_map(map_t* map);
+struct ErtsWStack_;
+struct ErtsEStack_;
+
+Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map);
+int erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res);
+int erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res);
+
+Eterm erts_hashmap_insert(Process *p, Uint32 hx, Eterm key, Eterm value,
+ Eterm node, int is_update);
+int erts_hashmap_insert_down(Uint32 hx, Eterm key, Eterm node, Uint *sz,
+ Uint *upsz, struct ErtsEStack_ *sp, int is_update);
+Eterm erts_hashmap_insert_up(Eterm *hp, Eterm key, Eterm value,
+ Uint *upsz, struct ErtsEStack_ *sp);
+
+int erts_validate_and_sort_flatmap(flatmap_t* map);
+Uint hashmap_over_estimated_heap_size(Uint n);
+void hashmap_iterator_init(struct ErtsWStack_* s, Eterm node, int reverse);
+Eterm* hashmap_iterator_next(struct ErtsWStack_* s);
+Eterm* hashmap_iterator_prev(struct ErtsWStack_* s);
+int hashmap_key_hash_cmp(Eterm* ap, Eterm* bp);
+Eterm erts_hashmap_from_array(ErtsHeapFactory*, Eterm *leafs, Uint n, int reject_dupkeys);
+
+#define erts_hashmap_from_ks_and_vs(P, KS, VS, N) \
+ erts_hashmap_from_ks_and_vs_extra((P), (KS), (VS), (N), THE_NON_VALUE, THE_NON_VALUE);
+
+Eterm erts_hashmap_from_ks_and_vs_extra(Process *p, Eterm *ks, Eterm *vs, Uint n,
+ Eterm k, Eterm v);
-#if HALFWORD_HEAP
const Eterm *
+#if HALFWORD_HEAP
erts_maps_get_rel(Eterm key, Eterm map, Eterm *map_base);
# define erts_maps_get(A, B) erts_maps_get_rel(A, B, NULL)
#else
-const Eterm *
erts_maps_get(Eterm key, Eterm map);
# define erts_maps_get_rel(A, B, B_BASE) erts_maps_get(A, B)
#endif
+const Eterm *
+#if HALFWORD_HEAP
+erts_hashmap_get_rel(Uint32 hx, Eterm key, Eterm node, Eterm *map_base);
+# define erts_hashmap_get(Hx, K, M) erts_hashmap_get_rel(Hx, K, M, NULL)
+#else
+erts_hashmap_get(Uint32 hx, Eterm key, Eterm map);
+# define erts_hashmap_get_rel(Hx, K, M, M_BASE) erts_hashmap_get(Hx, K, M)
+#endif
+
+/* hamt nodes v2.0
+ *
+ * node :: leaf | array | bitmap
+ * head
+ */
+typedef struct hashmap_head_s {
+ Eterm thing_word;
+ Uint size;
+ Eterm items[1];
+} hashmap_head_t;
+
+/* thing_word tagscheme
+ * Need two bits for map subtags
+ *
+ * Original HEADER representation:
+ *
+ * aaaaaaaaaaaaaaaa aaaaaaaaaatttt00 arity:26, tag:4
+ *
+ * For maps we have:
+ *
+ * vvvvvvvvvvvvvvvv aaaaaaaamm111100 val:16, arity:8, mtype:2
+ *
+ * unsure about trailing zeros
+ *
+ * map-tag:
+ * 00 - flat map tag (non-hamt) -> val:16 = #items
+ * 01 - map-node bitmap tag -> val:16 = bitmap
+ * 10 - map-head (array-node) -> val:16 = 0xffff
+ * 11 - map-head (bitmap-node) -> val:16 = bitmap
+ */
+
+/* erl_map.h stuff */
+
+#define is_hashmap_header_head(x) ((MAP_HEADER_TYPE(x) & (0x2)))
+
+#define MAKE_MAP_HEADER(Type,Arity,Val) \
+ (_make_header(((((Uint16)(Val)) << MAP_HEADER_ARITY_SZ) | (Arity)) << MAP_HEADER_TAG_SZ | (Type) , _TAG_HEADER_HASHMAP))
+
+#define MAP_HEADER_HAMT_HEAD_ARRAY \
+ MAKE_MAP_HEADER(MAP_HEADER_TAG_HAMT_HEAD_ARRAY,0x1,0xffff)
+
+#define MAP_HEADER_HAMT_HEAD_BITMAP(Bmp) \
+ MAKE_MAP_HEADER(MAP_HEADER_TAG_HAMT_HEAD_BITMAP,0x1,Bmp)
+
+#define MAP_HEADER_HAMT_NODE_ARRAY \
+ make_arityval(16)
+
+#define MAP_HEADER_HAMT_NODE_BITMAP(Bmp) \
+ MAKE_MAP_HEADER(MAP_HEADER_TAG_HAMT_NODE_BITMAP,0x0,Bmp)
+
+#define HAMT_HEAD_EMPTY_SZ (2)
+#define HAMT_NODE_ARRAY_SZ (17)
+#define HAMT_HEAD_ARRAY_SZ (18)
+#define HAMT_NODE_BITMAP_SZ(n) (1 + n)
+#define HAMT_HEAD_BITMAP_SZ(n) (2 + n)
+
+#define _HEADER_MAP_SUBTAG_MASK (0xfc) /* 2 bits maps tag + 4 bits subtag + 2 ignore bits */
+/* SUBTAG_NODE_ARRAY is in fact a tuple with 16 elements */
+#define HAMT_SUBTAG_NODE_ARRAY (((16 << _HEADER_ARITY_OFFS) | ARITYVAL_SUBTAG) & _HEADER_MAP_SUBTAG_MASK)
+#define HAMT_SUBTAG_NODE_BITMAP ((MAP_HEADER_TAG_HAMT_NODE_BITMAP << _HEADER_ARITY_OFFS) | HASHMAP_SUBTAG)
+#define HAMT_SUBTAG_HEAD_ARRAY ((MAP_HEADER_TAG_HAMT_HEAD_ARRAY << _HEADER_ARITY_OFFS) | HASHMAP_SUBTAG)
+#define HAMT_SUBTAG_HEAD_BITMAP ((MAP_HEADER_TAG_HAMT_HEAD_BITMAP << _HEADER_ARITY_OFFS) | HASHMAP_SUBTAG)
+
+#define hashmap_index(hash) (((Uint32)hash) & 0xf)
+
+
#endif
diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c
index 8870fac7d9..43a03c793e 100644
--- a/erts/emulator/beam/erl_message.c
+++ b/erts/emulator/beam/erl_message.c
@@ -1146,3 +1146,15 @@ erts_deliver_exit_message(Eterm from, Process *to, ErtsProcLocks *to_locksp,
}
}
+Eterm* erts_produce_heap(ErtsHeapFactory* factory, Uint need, Uint xtra)
+{
+ Eterm* res;
+ if (factory->p) {
+ res = HAllocX(factory->p, need, xtra);
+ } else {
+ res = factory->hp;
+ factory->hp += need;
+ }
+ return res;
+}
+
diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h
index 0f3bb8d281..6b8c3cebc7 100644
--- a/erts/emulator/beam/erl_message.h
+++ b/erts/emulator/beam/erl_message.h
@@ -68,6 +68,21 @@ struct erl_heap_fragment {
Eterm mem[1]; /* Data */
};
+typedef struct {
+ Process* p;
+ Eterm* hp;
+} ErtsHeapFactory;
+
+Eterm* erts_produce_heap(ErtsHeapFactory*, Uint need, Uint xtra);
+#ifdef CHECK_FOR_HOLES
+# define ERTS_FACTORY_HOLE_CHECK(f) do { \
+ if ((f)->p) erts_check_for_holes((f)->p); \
+ } while (0)
+#else
+# define ERTS_FACTORY_HOLE_CHECK(p)
+#endif
+
+
typedef struct erl_mesg {
struct erl_mesg* next; /* Next message */
union {
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 198acfd128..e28365cb1b 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -1910,12 +1910,16 @@ int enif_is_map(ErlNifEnv* env, ERL_NIF_TERM term)
int enif_get_map_size(ErlNifEnv* env, ERL_NIF_TERM term, size_t *size)
{
- if (is_map(term)) {
- map_t *mp;
- mp = (map_t*)map_val(term);
- *size = map_get_size(mp);
+ if (is_flatmap(term)) {
+ flatmap_t *mp;
+ mp = (flatmap_t*)flatmap_val(term);
+ *size = flatmap_get_size(mp);
return 1;
}
+ else if (is_hashmap(term)) {
+ *size = hashmap_size(term);
+ return 1;
+ }
return 0;
}
@@ -1923,16 +1927,16 @@ ERL_NIF_TERM enif_make_new_map(ErlNifEnv* env)
{
Eterm* hp = alloc_heap(env,MAP_HEADER_SIZE+1);
Eterm tup;
- map_t *mp;
+ flatmap_t *mp;
tup = make_tuple(hp);
*hp++ = make_arityval(0);
- mp = (map_t*)hp;
+ mp = (flatmap_t*)hp;
mp->thing_word = MAP_HEADER;
mp->size = 0;
mp->keys = tup;
- return make_map(mp);
+ return make_flatmap(mp);
}
int enif_make_map_put(ErlNifEnv* env,
@@ -1941,7 +1945,7 @@ int enif_make_map_put(ErlNifEnv* env,
Eterm value,
Eterm *map_out)
{
- if (is_not_map(map_in)) {
+ if (!is_map(map_in)) {
return 0;
}
flush_env(env);
@@ -1956,7 +1960,7 @@ int enif_get_map_value(ErlNifEnv* env,
Eterm *value)
{
const Eterm *ret;
- if (is_not_map(map)) {
+ if (!is_map(map)) {
return 0;
}
ret = erts_maps_get(key, map);
@@ -1974,7 +1978,7 @@ int enif_make_map_update(ErlNifEnv* env,
Eterm *map_out)
{
int res;
- if (is_not_map(map_in)) {
+ if (!is_map(map_in)) {
return 0;
}
@@ -1990,7 +1994,7 @@ int enif_make_map_remove(ErlNifEnv* env,
Eterm *map_out)
{
int res;
- if (is_not_map(map_in)) {
+ if (!is_map(map_in)) {
return 0;
}
flush_env(env);
@@ -2004,13 +2008,13 @@ int enif_map_iterator_create(ErlNifEnv *env,
ErlNifMapIterator *iter,
ErlNifMapIteratorEntry entry)
{
- if (is_map(map)) {
- map_t *mp = (map_t*)map_val(map);
+ if (is_flatmap(map)) {
+ flatmap_t *mp = (flatmap_t*)flatmap_val(map);
size_t offset;
switch (entry) {
case ERL_NIF_MAP_ITERATOR_HEAD: offset = 0; break;
- case ERL_NIF_MAP_ITERATOR_TAIL: offset = map_get_size(mp) - 1; break;
+ case ERL_NIF_MAP_ITERATOR_TAIL: offset = flatmap_get_size(mp) - 1; break;
default: goto error;
}
@@ -2019,14 +2023,37 @@ int enif_map_iterator_create(ErlNifEnv *env,
*/
iter->map = map;
- iter->ks = ((Eterm *)map_get_keys(mp)) + offset;
- iter->vs = ((Eterm *)map_get_values(mp)) + offset;
- iter->t_limit = map_get_size(mp) + 1;
+ iter->u.flat.ks = ((Eterm *)flatmap_get_keys(mp)) + offset;
+ iter->u.flat.vs = ((Eterm *)flatmap_get_values(mp)) + offset;
+ iter->size = flatmap_get_size(mp);
iter->idx = offset + 1;
return 1;
}
-
+ else if (is_hashmap(map)) {
+ iter->map = map;
+ iter->size = hashmap_size(map);
+ iter->u.hash.wstack = erts_alloc(ERTS_ALC_T_NIF, sizeof(ErtsDynamicWStack));
+ WSTACK_INIT(iter->u.hash.wstack, ERTS_ALC_T_NIF);
+
+ switch (entry) {
+ case ERL_NIF_MAP_ITERATOR_HEAD:
+ iter->idx = 1;
+ hashmap_iterator_init(&iter->u.hash.wstack->ws, map, 0);
+ iter->u.hash.kv = hashmap_iterator_next(&iter->u.hash.wstack->ws);
+ break;
+ case ERL_NIF_MAP_ITERATOR_TAIL:
+ iter->idx = hashmap_size(map);
+ hashmap_iterator_init(&iter->u.hash.wstack->ws, map, 1);
+ iter->u.hash.kv = hashmap_iterator_prev(&iter->u.hash.wstack->ws);
+ break;
+ default:
+ goto error;
+ }
+ ASSERT(!!iter->u.hash.kv == (iter->idx >= 1 &&
+ iter->idx <= iter->size));
+ return 1;
+ }
error:
#ifdef DEBUG
iter->map = THE_NON_VALUE;
@@ -2036,48 +2063,97 @@ error:
void enif_map_iterator_destroy(ErlNifEnv *env, ErlNifMapIterator *iter)
{
- /* not used */
+ if (is_hashmap(iter->map)) {
+ WSTACK_DESTROY(iter->u.hash.wstack->ws);
+ erts_free(ERTS_ALC_T_NIF, iter->u.hash.wstack);
+ }
+ else
+ ASSERT(is_flatmap(iter->map));
+
#ifdef DEBUG
iter->map = THE_NON_VALUE;
#endif
-
}
int enif_map_iterator_is_tail(ErlNifEnv *env, ErlNifMapIterator *iter)
{
- ASSERT(iter && is_map(iter->map));
- ASSERT(iter->idx >= 0 && (iter->idx <= map_get_size(map_val(iter->map)) + 1));
- return (iter->t_limit == 1 || iter->idx == iter->t_limit);
+ ASSERT(iter);
+ if (is_flatmap(iter->map)) {
+ ASSERT(iter->idx >= 0);
+ ASSERT(iter->idx <= flatmap_get_size(flatmap_val(iter->map)) + 1);
+ return (iter->size == 0 || iter->idx > iter->size);
+ }
+ else {
+ ASSERT(is_hashmap(iter->map));
+ return iter->idx > iter->size;
+ }
}
int enif_map_iterator_is_head(ErlNifEnv *env, ErlNifMapIterator *iter)
{
- ASSERT(iter && is_map(iter->map));
- ASSERT(iter->idx >= 0 && (iter->idx <= map_get_size(map_val(iter->map)) + 1));
- return (iter->t_limit == 1 || iter->idx == 0);
+ ASSERT(iter);
+ if (is_flatmap(iter->map)) {
+ ASSERT(iter->idx >= 0);
+ ASSERT(iter->idx <= flatmap_get_size(flatmap_val(iter->map)) + 1);
+ return (iter->size == 0 || iter->idx == 0);
+ }
+ else {
+ ASSERT(is_hashmap(iter->map));
+ return iter->idx == 0;
+ }
}
int enif_map_iterator_next(ErlNifEnv *env, ErlNifMapIterator *iter)
{
- ASSERT(iter && is_map(iter->map));
- if (iter->idx < iter->t_limit) {
- iter->idx++;
- iter->ks++;
- iter->vs++;
+ ASSERT(iter);
+ if (is_flatmap(iter->map)) {
+ if (iter->idx <= iter->size) {
+ iter->idx++;
+ iter->u.flat.ks++;
+ iter->u.flat.vs++;
+ }
+ return (iter->idx <= iter->size);
+ }
+ else {
+ ASSERT(is_hashmap(iter->map));
+
+ if (iter->idx <= hashmap_size(iter->map)) {
+ if (iter->idx < 1) {
+ hashmap_iterator_init(&iter->u.hash.wstack->ws, iter->map, 0);
+ }
+ iter->u.hash.kv = hashmap_iterator_next(&iter->u.hash.wstack->ws);
+ iter->idx++;
+ ASSERT(!!iter->u.hash.kv == (iter->idx <= iter->size));
+ }
+ return iter->idx <= iter->size;
}
- return (iter->idx != iter->t_limit);
}
int enif_map_iterator_prev(ErlNifEnv *env, ErlNifMapIterator *iter)
{
- ASSERT(iter && is_map(iter->map));
- if (iter->idx > 0) {
- iter->idx--;
- iter->ks--;
- iter->vs--;
+ ASSERT(iter);
+ if (is_flatmap(iter->map)) {
+ if (iter->idx > 0) {
+ iter->idx--;
+ iter->u.flat.ks--;
+ iter->u.flat.vs--;
+ }
+ return iter->idx > 0;
+ }
+ else {
+ ASSERT(is_hashmap(iter->map));
+
+ if (iter->idx > 0) {
+ if (iter->idx > iter->size) {
+ hashmap_iterator_init(&iter->u.hash.wstack->ws, iter->map, 1);
+ }
+ iter->u.hash.kv = hashmap_iterator_prev(&iter->u.hash.wstack->ws);
+ iter->idx--;
+ ASSERT(!!iter->u.hash.kv == (iter->idx > 0));
+ }
+ return iter->idx > 0;
}
- return (iter->idx > 0);
}
int enif_map_iterator_get_pair(ErlNifEnv *env,
@@ -2085,15 +2161,25 @@ int enif_map_iterator_get_pair(ErlNifEnv *env,
Eterm *key,
Eterm *value)
{
- ASSERT(iter && is_map(iter->map));
- if (iter->idx > 0 && iter->idx < iter->t_limit) {
- ASSERT(iter->ks >= map_get_keys(map_val(iter->map)) &&
- iter->ks < (map_get_keys(map_val(iter->map)) + map_get_size(map_val(iter->map))));
- ASSERT(iter->vs >= map_get_values(map_val(iter->map)) &&
- iter->vs < (map_get_values(map_val(iter->map)) + map_get_size(map_val(iter->map))));
- *key = *(iter->ks);
- *value = *(iter->vs);
- return 1;
+ ASSERT(iter);
+ if (is_flatmap(iter->map)) {
+ if (iter->idx > 0 && iter->idx <= iter->size) {
+ ASSERT(iter->u.flat.ks >= flatmap_get_keys(flatmap_val(iter->map)) &&
+ iter->u.flat.ks < (flatmap_get_keys(flatmap_val(iter->map)) + flatmap_get_size(flatmap_val(iter->map))));
+ ASSERT(iter->u.flat.vs >= flatmap_get_values(flatmap_val(iter->map)) &&
+ iter->u.flat.vs < (flatmap_get_values(flatmap_val(iter->map)) + flatmap_get_size(flatmap_val(iter->map))));
+ *key = *(iter->u.flat.ks);
+ *value = *(iter->u.flat.vs);
+ return 1;
+ }
+ }
+ else {
+ ASSERT(is_hashmap(iter->map));
+ if (iter->idx > 0 && iter->idx <= iter->size) {
+ *key = CAR(iter->u.hash.kv);
+ *value = CDR(iter->u.hash.kv);
+ return 1;
+ }
}
return 0;
}
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index 849024453c..9b2b90c82d 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -201,10 +201,18 @@ typedef enum
typedef struct /* All fields all internal and may change */
{
ERL_NIF_TERM map;
- ERL_NIF_UINT t_limit;
+ ERL_NIF_UINT size;
ERL_NIF_UINT idx;
- ERL_NIF_TERM *ks;
- ERL_NIF_TERM *vs;
+ union {
+ struct {
+ ERL_NIF_TERM *ks;
+ ERL_NIF_TERM *vs;
+ }flat;
+ struct {
+ struct ErtsDynamicWStack_* wstack;
+ ERL_NIF_TERM* kv;
+ }hash;
+ }u;
void* __spare__[2]; /* for future additions to be ABI compatible (same struct size) */
} ErlNifMapIterator;
diff --git a/erts/emulator/beam/erl_printf_term.c b/erts/emulator/beam/erl_printf_term.c
index c982dc2080..ac5b139f8d 100644
--- a/erts/emulator/beam/erl_printf_term.c
+++ b/erts/emulator/beam/erl_printf_term.c
@@ -247,6 +247,17 @@ static int print_atom_name(fmtfn_t fn, void* arg, Eterm atom, long *dcount)
#define PRT_PATCH_FUN_SIZE ((Eterm) 7)
#define PRT_LAST_ARRAY_ELEMENT ((Eterm) 8) /* Note! Must be last... */
+#if 0
+static char *format_binary(Uint16 x, char *b) {
+ int z;
+ b[16] = '\0';
+ for (z = 0; z < 16; z++) {
+ b[15-z] = ((x>>z) & 0x1) ? '1' : '0';
+ }
+ return b;
+}
+#endif
+
static int
print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
Eterm* obj_base) /* ignored if !HALFWORD_HEAP */
@@ -557,10 +568,10 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
{
Uint n;
Eterm *ks, *vs;
- map_t *mp = (map_t *)map_val(wobj);
- n = map_get_size(mp);
- ks = map_get_keys(mp);
- vs = map_get_values(mp);
+ flatmap_t *mp = (flatmap_t *)flatmap_val(wobj);
+ n = flatmap_get_size(mp);
+ ks = flatmap_get_keys(mp);
+ vs = flatmap_get_values(mp);
PRINT_CHAR(res, fn, arg, '#');
PRINT_CHAR(res, fn, arg, '{');
@@ -575,6 +586,55 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
}
}
break;
+ case HASHMAP_DEF:
+ {
+ Uint n,mapval;
+ Eterm *head;
+ head = hashmap_val(wobj);
+ mapval = MAP_HEADER_VAL(*head);
+ switch (MAP_HEADER_TYPE(*head)) {
+ case MAP_HEADER_TAG_HAMT_HEAD_ARRAY:
+ case MAP_HEADER_TAG_HAMT_HEAD_BITMAP:
+ PRINT_STRING(res, fn, arg, "#<");
+ PRINT_UWORD(res, fn, arg, 'x', 0, 1, mapval);
+ PRINT_STRING(res, fn, arg, ">{");
+ WSTACK_PUSH(s,PRT_CLOSE_TUPLE);
+ n = hashmap_bitcount(mapval);
+ ASSERT(n < 17);
+ head += 2;
+ if (n > 0) {
+ n--;
+ WSTACK_PUSH(s, head[n]);
+ WSTACK_PUSH(s, PRT_TERM);
+ while (n--) {
+ WSTACK_PUSH(s, PRT_COMMA);
+ WSTACK_PUSH(s, head[n]);
+ WSTACK_PUSH(s, PRT_TERM);
+ }
+ }
+ break;
+ case MAP_HEADER_TAG_HAMT_NODE_BITMAP:
+ n = hashmap_bitcount(mapval);
+ head++;
+ PRINT_CHAR(res, fn, arg, '<');
+ PRINT_UWORD(res, fn, arg, 'x', 0, 1, mapval);
+ PRINT_STRING(res, fn, arg, ">{");
+ WSTACK_PUSH(s,PRT_CLOSE_TUPLE);
+ ASSERT(n < 17);
+ if (n > 0) {
+ n--;
+ WSTACK_PUSH(s, head[n]);
+ WSTACK_PUSH(s, PRT_TERM);
+ while (n--) {
+ WSTACK_PUSH(s, PRT_COMMA);
+ WSTACK_PUSH(s, head[n]);
+ WSTACK_PUSH(s, PRT_TERM);
+ }
+ }
+ break;
+ }
+ }
+ break;
default:
PRINT_STRING(res, fn, arg, "<unknown:");
PRINT_POINTER(res, fn, arg, wobj);
@@ -584,11 +644,11 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
}
L_done:
-
DESTROY_WSTACK(s);
return res;
}
+
int
erts_printf_term(fmtfn_t fn, void* arg, ErlPfEterm term, long precision,
ErlPfEterm* term_base)
diff --git a/erts/emulator/beam/erl_term.c b/erts/emulator/beam/erl_term.c
index 28cbe7004f..d6fb88ea61 100644
--- a/erts/emulator/beam/erl_term.c
+++ b/erts/emulator/beam/erl_term.c
@@ -86,11 +86,13 @@ unsigned tag_val_def(Wterm x)
case (_TAG_HEADER_EXTERNAL_PID >> _TAG_PRIMARY_SIZE): return EXTERNAL_PID_DEF;
case (_TAG_HEADER_EXTERNAL_PORT >> _TAG_PRIMARY_SIZE): return EXTERNAL_PORT_DEF;
case (_TAG_HEADER_EXTERNAL_REF >> _TAG_PRIMARY_SIZE): return EXTERNAL_REF_DEF;
+ case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE): return MAP_DEF;
case (_TAG_HEADER_REFC_BIN >> _TAG_PRIMARY_SIZE): return BINARY_DEF;
case (_TAG_HEADER_HEAP_BIN >> _TAG_PRIMARY_SIZE): return BINARY_DEF;
case (_TAG_HEADER_SUB_BIN >> _TAG_PRIMARY_SIZE): return BINARY_DEF;
- case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE): return MAP_DEF;
+ case (_TAG_HEADER_HASHMAP >> _TAG_PRIMARY_SIZE): return HASHMAP_DEF;
}
+
break;
}
case TAG_PRIMARY_IMMED1: {
diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h
index 37014ccf94..1625a4ec15 100644
--- a/erts/emulator/beam/erl_term.h
+++ b/erts/emulator/beam/erl_term.h
@@ -141,6 +141,7 @@ struct erl_node_; /* Declared in erl_node_tables.h */
#define HEAP_BINARY_SUBTAG (0x9 << _TAG_PRIMARY_SIZE) /* BINARY */
#define SUB_BINARY_SUBTAG (0xA << _TAG_PRIMARY_SIZE) /* BINARY */
/* _BINARY_XXX_MASK depends on 0xB being unused */
+#define HASHMAP_SUBTAG (0xB << _TAG_PRIMARY_SIZE) /* HASHMAP */
#define EXTERNAL_PID_SUBTAG (0xC << _TAG_PRIMARY_SIZE) /* EXTERNAL_PID */
#define EXTERNAL_PORT_SUBTAG (0xD << _TAG_PRIMARY_SIZE) /* EXTERNAL_PORT */
#define EXTERNAL_REF_SUBTAG (0xE << _TAG_PRIMARY_SIZE) /* EXTERNAL_REF */
@@ -162,6 +163,7 @@ struct erl_node_; /* Declared in erl_node_tables.h */
#define _TAG_HEADER_EXTERNAL_REF (TAG_PRIMARY_HEADER|EXTERNAL_REF_SUBTAG)
#define _TAG_HEADER_BIN_MATCHSTATE (TAG_PRIMARY_HEADER|BIN_MATCHSTATE_SUBTAG)
#define _TAG_HEADER_MAP (TAG_PRIMARY_HEADER|MAP_SUBTAG)
+#define _TAG_HEADER_HASHMAP (TAG_PRIMARY_HEADER|HASHMAP_SUBTAG)
#define _TAG_HEADER_MASK 0x3F
@@ -296,9 +298,11 @@ _ET_DECLARE_CHECKED(Uint,atom_val,Eterm)
#define atom_val(x) _ET_APPLY(atom_val,(x))
/* header (arityval or thing) access methods */
-#define _make_header(sz,tag) ((Uint)(((sz) << _HEADER_ARITY_OFFS) + (tag)))
+#define _make_header(sz,tag) ((Uint)(((Uint)(sz) << _HEADER_ARITY_OFFS) + (tag)))
#define is_header(x) (((x) & _TAG_PRIMARY_MASK) == TAG_PRIMARY_HEADER)
-#define _unchecked_header_arity(x) ((x) >> _HEADER_ARITY_OFFS)
+//#define _unchecked_header_arity(x) ((x) >> _HEADER_ARITY_OFFS)
+#define _unchecked_header_arity(x) \
+ (is_hashmap_header(x) ? MAP_HEADER_ARITY(x) : ((x) >> _HEADER_ARITY_OFFS))
_ET_DECLARE_CHECKED(Uint,header_arity,Eterm)
#define header_arity(x) _ET_APPLY(header_arity,(x))
@@ -361,6 +365,7 @@ _ET_DECLARE_CHECKED(Uint,thing_subtag,Eterm)
((((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_REFC_BIN) || \
(((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_HEAP_BIN) || \
(((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_SUB_BIN))
+
#define make_binary(x) make_boxed((Eterm*)(x))
#define is_binary(x) (is_boxed((x)) && is_binary_header(*boxed_val((x))))
#define is_not_binary(x) (!is_binary((x)))
@@ -990,6 +995,33 @@ _ET_DECLARE_CHECKED(Uint32*,external_ref_data,Wterm)
_ET_DECLARE_CHECKED(struct erl_node_*,external_ref_node,Eterm)
#define external_ref_node(x) _ET_APPLY(external_ref_node,(x))
+/* maps */
+
+#define MAP_HEADER_TAG_SZ (2)
+#define MAP_HEADER_ARITY_SZ (8)
+#define MAP_HEADER_VAL_SZ (16)
+
+#define MAP_HEADER_TAG_FLAT (0x0)
+#define MAP_HEADER_TAG_HAMT_NODE_BITMAP (0x1)
+#define MAP_HEADER_TAG_HAMT_HEAD_ARRAY (0x2)
+#define MAP_HEADER_TAG_HAMT_HEAD_BITMAP (0x3)
+
+#define MAP_HEADER_TYPE(Hdr) (((Hdr) >> (_HEADER_ARITY_OFFS)) & (0x3))
+#define MAP_HEADER_ARITY(Hdr) (((Hdr) >> (_HEADER_ARITY_OFFS + MAP_HEADER_TAG_SZ)) & (0xff))
+#define MAP_HEADER_VAL(Hdr) (((Hdr) >> (_HEADER_ARITY_OFFS + MAP_HEADER_TAG_SZ + MAP_HEADER_ARITY_SZ)) & (0xffff))
+
+#define make_hashmap(x) make_boxed((Eterm*)(x))
+#define make_hashmap_rel make_boxed_rel
+#define is_hashmap(x) (is_boxed((x)) && is_hashmap_header(*boxed_val((x))))
+#define is_not_hashmap(x) (!is_hashmap(x))
+#define is_hashmap_rel(RTERM,BASE) is_hashmap(rterm2wterm(RTERM,BASE))
+#define is_hashmap_header(x) (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_HASHMAP)
+#define hashmap_val(x) _unchecked_boxed_val((x))
+#define hashmap_val_rel(RTERM, BASE) hashmap_val(rterm2wterm(RTERM, BASE))
+
+#define is_map(x) (is_flatmap(x) || is_hashmap(x))
+#define is_map_rel(x,BASE) (is_flatmap_rel(x,BASE) || is_hashmap_rel(x,BASE))
+
/* number tests */
#define is_integer(x) (is_small(x) || is_big(x))
@@ -1081,20 +1113,23 @@ _ET_DECLARE_CHECKED(Uint,y_reg_index,Uint)
#define BINARY_DEF 0x0
#define LIST_DEF 0x1
#define NIL_DEF 0x2
-#define MAP_DEF 0x3
-#define TUPLE_DEF 0x4
-#define PID_DEF 0x5
-#define EXTERNAL_PID_DEF 0x6
-#define PORT_DEF 0x7
-#define EXTERNAL_PORT_DEF 0x8
-#define EXPORT_DEF 0x9
-#define FUN_DEF 0xa
-#define REF_DEF 0xb
-#define EXTERNAL_REF_DEF 0xc
-#define ATOM_DEF 0xd
-#define FLOAT_DEF 0xe
-#define BIG_DEF 0xf
-#define SMALL_DEF 0x10
+#define HASHMAP_DEF 0x3
+#define MAP_DEF 0x4
+#define TUPLE_DEF 0x5
+#define PID_DEF 0x6
+#define EXTERNAL_PID_DEF 0x7
+#define PORT_DEF 0x8
+#define EXTERNAL_PORT_DEF 0x9
+#define EXPORT_DEF 0xa
+#define FUN_DEF 0xb
+#define REF_DEF 0xc
+#define EXTERNAL_REF_DEF 0xd
+#define ATOM_DEF 0xe
+#define FLOAT_DEF 0xf
+#define BIG_DEF 0x10
+#define SMALL_DEF 0x11
+
+#define FIRST_VACANT_TAG_DEF 0x12
#if ET_DEBUG
extern unsigned tag_val_def_debug(Wterm, const char*, unsigned);
diff --git a/erts/emulator/beam/erl_utils.h b/erts/emulator/beam/erl_utils.h
index c32f8fd61c..7cb8972e29 100644
--- a/erts/emulator/beam/erl_utils.h
+++ b/erts/emulator/beam/erl_utils.h
@@ -113,12 +113,14 @@ void erts_silence_warn_unused_result(long unused);
int erts_fit_in_bits_int64(Sint64);
int erts_fit_in_bits_int32(Sint32);
+int erts_fit_in_bits_uint(Uint);
int erts_list_length(Eterm);
int erts_is_builtin(Eterm, Eterm, int);
Uint32 make_broken_hash(Eterm);
Uint32 block_hash(byte *, unsigned, Uint32);
Uint32 make_hash2(Eterm);
Uint32 make_hash(Eterm);
+Uint32 make_internal_hash(Eterm);
void erts_save_emu_args(int argc, char **argv);
Eterm erts_get_emu_args(struct process *c_p);
diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h
index 6e9216bef3..3a9fb1e07b 100644
--- a/erts/emulator/beam/erl_vm.h
+++ b/erts/emulator/beam/erl_vm.h
@@ -117,9 +117,9 @@
#if defined(DEBUG) || defined(CHECK_FOR_HOLES)
#if HALFWORD_HEAP
-# define ERTS_HOLE_MARKER (0xaf5e78ccU)
+# define ERTS_HOLE_MARKER (0xdeadbeef)
#else
-# define ERTS_HOLE_MARKER (((0xaf5e78ccUL << 24) << 8) | 0xaf5e78ccUL)
+# define ERTS_HOLE_MARKER (((0xdeadbeef << 24) << 8) | 0xdeadbeef)
#endif
#endif
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c
index e5fb2d3ec1..9a5ef56c47 100644
--- a/erts/emulator/beam/external.c
+++ b/erts/emulator/beam/external.c
@@ -1182,7 +1182,8 @@ typedef struct {
Eterm* hp_end;
int remaining_n;
char* remaining_bytes;
- Eterm* maps_head;
+ Eterm* maps_list;
+ struct dec_term_hamt_placeholder* hamt_list;
} B2TDecodeContext;
typedef struct {
@@ -1508,7 +1509,8 @@ static BIF_RETTYPE binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binar
ctx->u.dc.hp_start = HAlloc(p, ctx->heap_size);
ctx->u.dc.hp = ctx->u.dc.hp_start;
ctx->u.dc.hp_end = ctx->u.dc.hp_start + ctx->heap_size;
- ctx->u.dc.maps_head = NULL;
+ ctx->u.dc.maps_list = NULL;
+ ctx->u.dc.hamt_list = NULL;
ctx->state = B2TDecode;
/*fall through*/
case B2TDecode:
@@ -2304,7 +2306,8 @@ dec_pid(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Ete
#define ENC_PATCH_FUN_SIZE ((Eterm) 2)
#define ENC_BIN_COPY ((Eterm) 3)
#define ENC_MAP_PAIR ((Eterm) 4)
-#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 5)
+#define ENC_HASHMAP_NODE ((Eterm) 5)
+#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 6)
static byte*
enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
@@ -2413,6 +2416,13 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
WSTACK_PUSH2(s, ENC_TERM, *vptr);
break;
}
+ case ENC_HASHMAP_NODE:
+ if (is_list(obj)) { /* leaf node [K|V] */
+ ptr = list_val(obj);
+ WSTACK_PUSH2(s, ENC_TERM, CDR(ptr));
+ obj = CAR(ptr);
+ }
+ break;
case ENC_LAST_ARRAY_ELEMENT:
/* obj is the tuple */
{
@@ -2595,15 +2605,15 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
case MAP_DEF:
{
- map_t *mp = (map_t*)map_val(obj);
- Uint size = map_get_size(mp);
+ flatmap_t *mp = (flatmap_t*)flatmap_val(obj);
+ Uint size = flatmap_get_size(mp);
*ep++ = MAP_EXT;
put_int32(size, ep); ep += 4;
if (size > 0) {
- Eterm *kptr = map_get_keys(mp);
- Eterm *vptr = map_get_values(mp);
+ Eterm *kptr = flatmap_get_keys(mp);
+ Eterm *vptr = flatmap_get_values(mp);
WSTACK_PUSH4(s, (UWord)kptr, (UWord)vptr,
ENC_MAP_PAIR, size);
@@ -2611,6 +2621,44 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
}
break;
+ case HASHMAP_DEF:
+ {
+ Eterm hdr;
+ Uint node_sz;
+ ptr = boxed_val(obj);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ *ep++ = MAP_EXT;
+ ptr++;
+ put_int32(*ptr, ep); ep += 4;
+ /*fall through*/
+ case HAMT_SUBTAG_NODE_ARRAY:
+ node_sz = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ *ep++ = MAP_EXT;
+ ptr++;
+ put_int32(*ptr, ep); ep += 4;
+ /*fall through*/
+ case HAMT_SUBTAG_NODE_BITMAP:
+ node_sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ASSERT(node_sz < 17);
+ break;
+ default:
+ erl_exit(1, "bad header\r\n");
+ }
+
+ ptr++;
+ WSTACK_RESERVE(s, node_sz*2);
+ while(node_sz--) {
+ WSTACK_FAST_PUSH(s, ENC_HASHMAP_NODE);
+ WSTACK_FAST_PUSH(s, *ptr++);
+ }
+ }
+ break;
+
case FLOAT_DEF:
GET_DOUBLE(obj, f);
if (dflags & DFLAG_NEW_FLOATS) {
@@ -2892,9 +2940,19 @@ undo_offheap_in_area(ErlOffHeap* off_heap, Eterm* start, Eterm* end)
#endif /* DEBUG */
}
+struct dec_term_hamt_placeholder
+{
+ struct dec_term_hamt_placeholder* next;
+ Eterm* objp; /* write result here */
+ Uint size; /* nr of leafs */
+ Eterm leafs[1];
+};
+
+#define DEC_TERM_HAMT_PLACEHOLDER_SIZE \
+ (offsetof(struct dec_term_hamt_placeholder, leafs) / sizeof(Eterm))
/* Decode term from external format into *objp.
-** On failure return NULL and (R13B04) *hpp will be unchanged.
+** On failure return NULL and *hpp will be unchanged.
*/
static byte*
dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap,
@@ -2904,7 +2962,8 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap,
int n;
ErtsAtomEncoding char_enc;
register Eterm* hp; /* Please don't take the address of hp */
- Eterm *maps_head; /* for validation of maps */
+ Eterm *maps_list; /* for preprocessing of small maps */
+ struct dec_term_hamt_placeholder* hamt_list; /* for preprocessing of big maps */
Eterm* next;
SWord reds;
@@ -2914,7 +2973,8 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap,
next = ctx->u.dc.next;
ep = ctx->u.dc.ep;
hpp = &ctx->u.dc.hp;
- maps_head = ctx->u.dc.maps_head;
+ maps_list = ctx->u.dc.maps_list;
+ hamt_list = ctx->u.dc.hamt_list;
if (ctx->state != B2TDecode) {
int n_limit = reds;
@@ -2995,7 +3055,8 @@ dec_term(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap,
reds = ERTS_SWORD_MAX;
next = objp;
*next = (Eterm) (UWord) NULL;
- maps_head = NULL;
+ maps_list = NULL;
+ hamt_list = NULL;
}
hp = *hpp;
@@ -3531,46 +3592,67 @@ dec_term_atom_common:
break;
case MAP_EXT:
{
- map_t *mp;
Uint32 size,n;
Eterm *kptr,*vptr;
Eterm keys;
size = get_int32(ep); ep += 4;
- keys = make_tuple(hp);
- *hp++ = make_arityval(size);
- hp += size;
- kptr = hp - 1;
-
- mp = (map_t*)hp;
- hp += MAP_HEADER_SIZE;
- hp += size;
- vptr = hp - 1;
-
- /* kptr, last word for keys
- * vptr, last word for values
- */
-
- /*
- * Use thing_word to link through decoded maps.
- * The list of maps is for later validation.
- */
-
- mp->thing_word = (Eterm) COMPRESS_POINTER(maps_head);
- maps_head = (Eterm *) mp;
-
- mp->size = size;
- mp->keys = keys;
- *objp = make_map(mp);
-
- for (n = size; n; n--) {
- *vptr = (Eterm) COMPRESS_POINTER(next);
- *kptr = (Eterm) COMPRESS_POINTER(vptr);
- next = kptr;
- vptr--;
- kptr--;
- }
+ if (size <= MAP_SMALL_MAP_LIMIT) {
+ flatmap_t *mp;
+
+ keys = make_tuple(hp);
+ *hp++ = make_arityval(size);
+ hp += size;
+ kptr = hp - 1;
+
+ mp = (flatmap_t*)hp;
+ hp += MAP_HEADER_SIZE;
+ hp += size;
+ vptr = hp - 1;
+
+ /* kptr, last word for keys
+ * vptr, last word for values
+ */
+
+ /*
+ * Use thing_word to link through decoded maps.
+ * The list of maps is for later validation.
+ */
+
+ mp->thing_word = (Eterm) COMPRESS_POINTER(maps_list);
+ maps_list = (Eterm *) mp;
+
+ mp->size = size;
+ mp->keys = keys;
+ *objp = make_flatmap(mp);
+
+ for (n = size; n; n--) {
+ *vptr = (Eterm) COMPRESS_POINTER(next);
+ *kptr = (Eterm) COMPRESS_POINTER(vptr);
+ next = kptr;
+ vptr--;
+ kptr--;
+ }
+ }
+ else { /* Make hamt */
+ struct dec_term_hamt_placeholder* holder =
+ (struct dec_term_hamt_placeholder*) hp;
+
+ holder->next = hamt_list;
+ hamt_list = holder;
+ holder->objp = objp;
+ holder->size = size;
+
+ hp += DEC_TERM_HAMT_PLACEHOLDER_SIZE;
+
+ for (n = size; n; n--) {
+ CDR(hp) = (Eterm) COMPRESS_POINTER(next);
+ CAR(hp) = (Eterm) COMPRESS_POINTER(&CDR(hp));
+ next = &CAR(hp);
+ hp += 2;
+ }
+ }
}
break;
case NEW_FUN_EXT:
@@ -3791,7 +3873,7 @@ dec_term_atom_common:
ctx->u.dc.ep = ep;
ctx->u.dc.next = next;
ctx->u.dc.hp = hp;
- ctx->u.dc.maps_head = maps_head;
+ ctx->u.dc.maps_list = maps_list;
ctx->reds = 0;
return NULL;
}
@@ -3806,12 +3888,40 @@ dec_term_atom_common:
* - done here for when we know it is complete.
*/
- while (maps_head) {
- next = (Eterm *)(EXPAND_POINTER(*maps_head));
- *maps_head = MAP_HEADER;
- if (!erts_validate_and_sort_map((map_t*)maps_head))
+ while (maps_list) {
+ next = (Eterm *)(EXPAND_POINTER(*maps_list));
+ *maps_list = MAP_HEADER;
+ if (!erts_validate_and_sort_flatmap((flatmap_t*)maps_list))
goto error;
- maps_head = next;
+ maps_list = next;
+ }
+
+ /* Iterate through all the hamts and build tree nodes.
+ */
+ if (hamt_list) {
+ struct dec_term_hamt_placeholder* hamt = hamt_list;
+ ErtsHeapFactory factory;
+
+ factory.p = NULL;
+ factory.hp = hp;
+ /* We assume heap will suffice (see hashmap_over_estimated_heap_size) */
+
+ do {
+ *hamt->objp = erts_hashmap_from_array(&factory,
+ hamt->leafs,
+ hamt->size,
+ 1);
+ if (is_non_value(*hamt->objp))
+ goto error;
+
+ hamt_list = hamt->next;
+
+ /* Yes, we waste a couple of heap words per hamt
+ for the temporary placeholder */
+ *(Eterm*)hamt = make_pos_bignum_header(DEC_TERM_HAMT_PLACEHOLDER_SIZE-1);
+ } while (hamt_list);
+
+ hp = factory.hp;
}
if (ctx) {
@@ -4009,15 +4119,15 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj,
break;
case MAP_DEF:
{
- map_t *mp = (map_t*)map_val(obj);
- Uint size = map_get_size(mp);
+ flatmap_t *mp = (flatmap_t*)flatmap_val(obj);
+ Uint size = flatmap_get_size(mp);
Uint i;
Eterm *ptr;
result += 1 + 4; /* tag + 4 bytes size */
/* push values first */
- ptr = map_get_values(mp);
+ ptr = flatmap_get_values(mp);
i = size;
while(i--) {
if (is_list(*ptr)) {
@@ -4031,7 +4141,7 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj,
++ptr;
}
- ptr = map_get_keys(mp);
+ ptr = flatmap_get_keys(mp);
i = size;
while(i--) {
if (is_list(*ptr)) {
@@ -4047,6 +4157,38 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj,
goto outer_loop;
}
break;
+
+ case HASHMAP_DEF:
+ {
+ Eterm *ptr;
+ Eterm hdr;
+ Uint node_sz;
+ ptr = boxed_val(obj);
+ hdr = *ptr;
+ ASSERT(is_header(hdr));
+ switch(hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY: ptr++;
+ case HAMT_SUBTAG_NODE_ARRAY:
+ node_sz = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP: ptr++;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ node_sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ASSERT(node_sz < 17);
+ break;
+ default:
+ erl_exit(1, "bad header\r\n");
+ }
+
+ ptr++;
+ ESTACK_RESERVE(s, node_sz);
+ while(node_sz--) {
+ ESTACK_FAST_PUSH(s, *ptr++);
+ }
+ result += 1 + 4; /* tag + 4 bytes size */
+ }
+
+ break;
case FLOAT_DEF:
if (dflags & DFLAG_NEW_FLOATS) {
result += 9;
@@ -4149,6 +4291,8 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj,
return 0;
}
+
+
static Sint
decoded_size(byte *ep, byte* endp, int internal_tags, B2TContext* ctx)
{
@@ -4342,7 +4486,11 @@ init_done:
n = get_int32(ep);
ep += 4;
ADDTERMS(2*n);
- heap_size += 3 + n + 1 + n;
+ if (n <= MAP_SMALL_MAP_LIMIT) {
+ heap_size += 3 + n + 1 + n;
+ } else {
+ heap_size += hashmap_over_estimated_heap_size(n);
+ }
break;
case STRING_EXT:
CHKSIZE(2);
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 5330f389e0..42daa2c9ef 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -372,16 +372,17 @@ extern int stackdump_on_exit;
* DESTROY_ESTACK(Stack)
*/
-typedef struct {
+typedef struct ErtsEStack_ {
Eterm* start;
Eterm* sp;
Eterm* end;
+ Eterm* edefault;
ErtsAlcType_t alloc_type;
}ErtsEStack;
#define DEF_ESTACK_SIZE (16)
-void erl_grow_estack(ErtsEStack*, Eterm* def_stack);
+void erl_grow_estack(ErtsEStack*, Uint need);
#define ESTK_CONCAT(a,b) a##b
#define ESTK_DEF_STACK(s) ESTK_CONCAT(s,_default_estack)
@@ -391,22 +392,23 @@ void erl_grow_estack(ErtsEStack*, Eterm* def_stack);
ESTK_DEF_STACK(s), /* start */ \
ESTK_DEF_STACK(s), /* sp */ \
ESTK_DEF_STACK(s) + DEF_ESTACK_SIZE, /* end */ \
+ ESTK_DEF_STACK(s), /* default */ \
ERTS_ALC_T_ESTACK /* alloc_type */ \
}
#define ESTACK_CHANGE_ALLOCATOR(s,t) \
do { \
- if (s.start != ESTK_DEF_STACK(s)) { \
+ if ((s).start != ESTK_DEF_STACK(s)) { \
erl_exit(1, "Internal error - trying to change allocator " \
"type of active estack\n"); \
} \
- s.alloc_type = (t); \
+ (s).alloc_type = (t); \
} while (0)
#define DESTROY_ESTACK(s) \
do { \
- if (s.start != ESTK_DEF_STACK(s)) { \
- erts_free(s.alloc_type, s.start); \
+ if ((s).start != ESTK_DEF_STACK(s)) { \
+ erts_free((s).alloc_type, (s).start); \
} \
} while(0)
@@ -417,16 +419,17 @@ do { \
*/
#define ESTACK_SAVE(s,dst)\
do {\
- if (s.start == ESTK_DEF_STACK(s)) {\
+ if ((s).start == ESTK_DEF_STACK(s)) {\
UWord _wsz = ESTACK_COUNT(s);\
- (dst)->start = erts_alloc(s.alloc_type,\
+ (dst)->start = erts_alloc((s).alloc_type,\
DEF_ESTACK_SIZE * sizeof(Eterm));\
- memcpy((dst)->start, s.start,_wsz*sizeof(Eterm));\
+ memcpy((dst)->start, (s).start,_wsz*sizeof(Eterm));\
(dst)->sp = (dst)->start + _wsz;\
(dst)->end = (dst)->start + DEF_ESTACK_SIZE;\
- (dst)->alloc_type = s.alloc_type;\
+ (dst)->edefault = NULL;\
+ (dst)->alloc_type = (s).alloc_type;\
} else\
- *(dst) = s;\
+ *(dst) = (s);\
} while (0)
#define DESTROY_SAVED_ESTACK(estack)\
@@ -445,83 +448,114 @@ do {\
*/
#define ESTACK_RESTORE(s, src) \
do { \
- ASSERT(s.start == ESTK_DEF_STACK(s)); \
- s = *(src); /* struct copy */ \
+ ASSERT((s).start == ESTK_DEF_STACK(s)); \
+ (s) = *(src); /* struct copy */ \
(src)->start = NULL; \
- ASSERT(s.sp >= s.start); \
- ASSERT(s.sp <= s.end); \
+ ASSERT((s).sp >= (s).start); \
+ ASSERT((s).sp <= (s).end); \
} while (0)
-#define ESTACK_IS_STATIC(s) (s.start == ESTK_DEF_STACK(s)))
+#define ESTACK_IS_STATIC(s) ((s).start == ESTK_DEF_STACK(s))
-#define ESTACK_PUSH(s, x) \
-do { \
- if (s.sp == s.end) { \
- erl_grow_estack(&s, ESTK_DEF_STACK(s)); \
- } \
- *s.sp++ = (x); \
+#define ESTACK_PUSH(s, x) \
+do { \
+ if ((s).sp == (s).end) { \
+ erl_grow_estack(&(s), 1); \
+ } \
+ *(s).sp++ = (x); \
} while(0)
#define ESTACK_PUSH2(s, x, y) \
do { \
- if (s.sp > s.end - 2) { \
- erl_grow_estack(&s, ESTK_DEF_STACK(s)); \
+ if ((s).sp > (s).end - 2) { \
+ erl_grow_estack(&(s), 2); \
} \
- *s.sp++ = (x); \
- *s.sp++ = (y); \
+ *(s).sp++ = (x); \
+ *(s).sp++ = (y); \
} while(0)
#define ESTACK_PUSH3(s, x, y, z) \
do { \
- if (s.sp > s.end - 3) { \
- erl_grow_estack(&s, ESTK_DEF_STACK(s)); \
+ if ((s).sp > (s).end - 3) { \
+ erl_grow_estack(&s, 3); \
} \
- *s.sp++ = (x); \
- *s.sp++ = (y); \
- *s.sp++ = (z); \
+ *(s).sp++ = (x); \
+ *(s).sp++ = (y); \
+ *(s).sp++ = (z); \
} while(0)
#define ESTACK_PUSH4(s, E1, E2, E3, E4) \
do { \
- if (s.sp > s.end - 4) { \
- erl_grow_estack(&s, ESTK_DEF_STACK(s)); \
+ if ((s).sp > (s).end - 4) { \
+ erl_grow_estack(&s, 4); \
} \
- *s.sp++ = (E1); \
- *s.sp++ = (E2); \
- *s.sp++ = (E3); \
- *s.sp++ = (E4); \
+ *(s).sp++ = (E1); \
+ *(s).sp++ = (E2); \
+ *(s).sp++ = (E3); \
+ *(s).sp++ = (E4); \
} while(0)
-#define ESTACK_COUNT(s) (s.sp - s.start)
-#define ESTACK_ISEMPTY(s) (s.sp == s.start)
-#define ESTACK_POP(s) (*(--s.sp))
+#define ESTACK_RESERVE(s, push_cnt) \
+do { \
+ if ((s).sp > (s).end - (push_cnt)) { \
+ erl_grow_estack(&(s), (push_cnt)); \
+ } \
+} while(0)
+
+/* Must be preceded by ESTACK_RESERVE */
+#define ESTACK_FAST_PUSH(s, x) \
+do { \
+ ASSERT((s).sp < (s).end); \
+ *s.sp++ = (x); \
+} while(0)
+
+#define ESTACK_COUNT(s) ((s).sp - (s).start)
+#define ESTACK_ISEMPTY(s) ((s).sp == (s).start)
+#define ESTACK_POP(s) (*(--(s).sp))
/*
* WSTACK: same as ESTACK but with UWord instead of Eterm
*/
-typedef struct {
+typedef struct ErtsWStack_ {
UWord* wstart;
UWord* wsp;
UWord* wend;
+ UWord* wdefault;
ErtsAlcType_t alloc_type;
}ErtsWStack;
#define DEF_WSTACK_SIZE (16)
-void erl_grow_wstack(ErtsWStack*, UWord* def_stack);
+void erl_grow_wstack(ErtsWStack*, Uint need);
#define WSTK_CONCAT(a,b) a##b
#define WSTK_DEF_STACK(s) WSTK_CONCAT(s,_default_wstack)
-#define DECLARE_WSTACK(s) \
+#define WSTACK_DECLARE(s) \
UWord WSTK_DEF_STACK(s)[DEF_WSTACK_SIZE]; \
ErtsWStack s = { \
WSTK_DEF_STACK(s), /* wstart */ \
WSTK_DEF_STACK(s), /* wsp */ \
WSTK_DEF_STACK(s) + DEF_WSTACK_SIZE, /* wend */ \
+ WSTK_DEF_STACK(s), /* wdflt */ \
ERTS_ALC_T_ESTACK /* alloc_type */ \
}
+#define DECLARE_WSTACK WSTACK_DECLARE
+
+typedef struct ErtsDynamicWStack_ {
+ UWord default_stack[DEF_WSTACK_SIZE];
+ ErtsWStack ws;
+}ErtsDynamicWStack;
+
+#define WSTACK_INIT(dwsp, ALC_TYPE) \
+do { \
+ (dwsp)->ws.wstart = (dwsp)->default_stack; \
+ (dwsp)->ws.wsp = (dwsp)->default_stack; \
+ (dwsp)->ws.wend = (dwsp)->default_stack + DEF_WSTACK_SIZE;\
+ (dwsp)->ws.wdefault = (dwsp)->default_stack; \
+ (dwsp)->ws.alloc_type = ALC_TYPE; \
+} while (0)
#define WSTACK_CHANGE_ALLOCATOR(s,t) \
do { \
@@ -532,13 +566,20 @@ do { \
s.alloc_type = (t); \
} while (0)
-#define DESTROY_WSTACK(s) \
+#define WSTACK_DESTROY(s) \
do { \
- if (s.wstart != WSTK_DEF_STACK(s)) { \
+ if (s.wstart != s.wdefault) { \
erts_free(s.alloc_type, s.wstart); \
} \
} while(0)
+#define DESTROY_WSTACK WSTACK_DESTROY
+#define WSTACK_DEBUG(s) \
+ do { \
+ fprintf(stderr, "wstack size = %ld\r\n", s.wsp - s.wstart); \
+ fprintf(stderr, "wstack wstart = %p\r\n", s.wstart); \
+ fprintf(stderr, "wstack wsp = %p\r\n", s.wsp); \
+ } while(0)
/*
* Do not free the stack after this, it may have pointers into what
@@ -553,6 +594,7 @@ do {\
memcpy((dst)->wstart, s.wstart,_wsz*sizeof(UWord));\
(dst)->wsp = (dst)->wstart + _wsz;\
(dst)->wend = (dst)->wstart + DEF_WSTACK_SIZE;\
+ (dst)->wdefault = NULL;\
(dst)->alloc_type = s.alloc_type;\
} else\
*(dst) = s;\
@@ -581,12 +623,12 @@ do { \
ASSERT(s.wsp <= s.wend); \
} while (0)
-#define WSTACK_IS_STATIC(s) (s.wstart == WSTK_DEF_STACK(s)))
+#define WSTACK_IS_STATIC(s) (s.wstart == WSTK_DEF_STACK(s))
#define WSTACK_PUSH(s, x) \
do { \
if (s.wsp == s.wend) { \
- erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \
+ erl_grow_wstack(&s, 1); \
} \
*s.wsp++ = (x); \
} while(0)
@@ -594,7 +636,7 @@ do { \
#define WSTACK_PUSH2(s, x, y) \
do { \
if (s.wsp > s.wend - 2) { \
- erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \
+ erl_grow_wstack(&s, 2); \
} \
*s.wsp++ = (x); \
*s.wsp++ = (y); \
@@ -602,8 +644,8 @@ do { \
#define WSTACK_PUSH3(s, x, y, z) \
do { \
- if (s.wsp > s.wend - 3) { \
- erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \
+ if (s.wsp > s.wend - 3) { \
+ erl_grow_wstack(&s, 3); \
} \
*s.wsp++ = (x); \
*s.wsp++ = (y); \
@@ -612,8 +654,8 @@ do { \
#define WSTACK_PUSH4(s, A1, A2, A3, A4) \
do { \
- if (s.wsp > s.wend - 4) { \
- erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \
+ if (s.wsp > s.wend - 4) { \
+ erl_grow_wstack(&s, 4); \
} \
*s.wsp++ = (A1); \
*s.wsp++ = (A2); \
@@ -624,7 +666,7 @@ do { \
#define WSTACK_PUSH5(s, A1, A2, A3, A4, A5) \
do { \
if (s.wsp > s.wend - 5) { \
- erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \
+ erl_grow_wstack(&s, 5); \
} \
*s.wsp++ = (A1); \
*s.wsp++ = (A2); \
@@ -636,7 +678,7 @@ do { \
#define WSTACK_PUSH6(s, A1, A2, A3, A4, A5, A6) \
do { \
if (s.wsp > s.wend - 6) { \
- erl_grow_wstack(&s, WSTK_DEF_STACK(s)); \
+ erl_grow_wstack(&s, 6); \
} \
*s.wsp++ = (A1); \
*s.wsp++ = (A2); \
@@ -646,9 +688,85 @@ do { \
*s.wsp++ = (A6); \
} while(0)
+#define WSTACK_RESERVE(s, push_cnt) \
+do { \
+ if (s.wsp > s.wend - (push_cnt)) { \
+ erl_grow_wstack(&s, (push_cnt)); \
+ } \
+} while(0)
+
+/* Must be preceded by WSTACK_RESERVE */
+#define WSTACK_FAST_PUSH(s, x) \
+do { \
+ ASSERT(s.wsp < s.wend); \
+ *s.wsp++ = (x); \
+} while(0)
+
#define WSTACK_COUNT(s) (s.wsp - s.wstart)
#define WSTACK_ISEMPTY(s) (s.wsp == s.wstart)
-#define WSTACK_POP(s) (*(--s.wsp))
+#define WSTACK_POP(s) ((ASSERT(s.wsp > s.wstart)),*(--s.wsp))
+
+#define WSTACK_ROLLBACK(s, count) (ASSERT(WSTACK_COUNT(s) >= (count)), \
+ s.wsp = s.wstart + (count))
+
+/* PSTACK - Stack of any type.
+ * Usage:
+ * {
+ * #define PSTACK_TYPE MyType
+ * PSTACK_DECLARE(s,16);
+ * MyType *sp = PSTACK_PUSH(s);
+ *
+ * sp->x = ....
+ * sp->y = ....
+ * sp = PSTACK_PUSH(s);
+ * ...
+ * sp = PSTACK_POP(s);
+ * if (PSTACK_IS_EMPTY(s)) {
+ * // sp is invalid when stack is empty after pop
+ * }
+ *
+ * PSTACK_DESTROY(s);
+ * }
+ */
+
+
+typedef struct ErtsPStack_ {
+ byte* pstart;
+ byte* psp;
+ byte* pend;
+ ErtsAlcType_t alloc_type;
+}ErtsPStack;
+
+void erl_grow_pstack(ErtsPStack* s, void* default_pstack, unsigned need_bytes);
+#define PSTK_CONCAT(a,b) a##b
+#define PSTK_DEF_STACK(s) PSTK_CONCAT(s,_default_pstack)
+
+#define PSTACK_DECLARE(s, DEF_PSTACK_SIZE) \
+PSTACK_TYPE PSTK_DEF_STACK(s)[DEF_PSTACK_SIZE]; \
+ErtsPStack s = { (byte*)PSTK_DEF_STACK(s), /* pstart */ \
+ (byte*)(PSTK_DEF_STACK(s) - 1), /* psp */ \
+ (byte*)(PSTK_DEF_STACK(s) + (DEF_PSTACK_SIZE)), /* pend */\
+ ERTS_ALC_T_ESTACK /* alloc_type */ \
+}
+
+#define PSTACK_DESTROY(s) \
+do { \
+ if (s.pstart != (byte*)PSTK_DEF_STACK(s)) { \
+ erts_free(s.alloc_type, s.pstart); \
+ } \
+} while(0)
+
+#define PSTACK_IS_EMPTY(s) (s.psp < s.pstart)
+
+#define PSTACK_TOP(s) (ASSERT(!PSTACK_IS_EMPTY(s)), (PSTACK_TYPE*)(s.psp))
+
+#define PSTACK_PUSH(s) \
+ (s.psp += sizeof(PSTACK_TYPE), \
+ ((s.psp == s.pend) ? erl_grow_pstack(&s, PSTK_DEF_STACK(s), \
+ sizeof(PSTACK_TYPE)) : (void)0), \
+ ((PSTACK_TYPE*) s.psp))
+
+#define PSTACK_POP(s) ((PSTACK_TYPE*) (s.psp -= sizeof(PSTACK_TYPE)))
/* binary.c */
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 9377237475..fb0edbcb1a 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -5350,7 +5350,11 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
case ERL_DRV_MAP: { /* int */
ERTS_DDT_CHK_ENOUGH_ARGS(1);
if ((int) ptr[0] < 0) ERTS_DDT_FAIL;
- need += MAP_HEADER_SIZE + 1 + 2*ptr[0];
+ if (ptr[0] > MAP_SMALL_MAP_LIMIT) {
+ need += hashmap_over_estimated_heap_size(ptr[0]);
+ } else {
+ need += MAP_HEADER_SIZE + 1 + 2*ptr[0];
+ }
depth -= 2*ptr[0];
if (depth < 0) ERTS_DDT_FAIL;
ptr++;
@@ -5594,31 +5598,52 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
case ERL_DRV_MAP: { /* int */
int size = (int)ptr[0];
- Eterm* tp = hp;
- Eterm* vp;
- map_t *mp;
-
- *tp = make_arityval(size);
-
- hp += 1 + size;
- mp = (map_t*)hp;
- mp->thing_word = MAP_HEADER;
- mp->size = size;
- mp->keys = make_tuple(tp);
- mess = make_map(mp);
-
- hp += MAP_HEADER_SIZE + size; /* advance "heap" pointer */
-
- tp += size; /* point at last key */
- vp = hp - 1; /* point at last value */
-
- while(size--) {
- *vp-- = ESTACK_POP(stack);
- *tp-- = ESTACK_POP(stack);
- }
- if (!erts_validate_and_sort_map(mp))
- ERTS_DDT_FAIL;
- ptr++;
+ if (size > MAP_SMALL_MAP_LIMIT) {
+ int ix = 2*size;
+ ErtsHeapFactory factory;
+ Eterm* leafs = hp;
+
+ hp += 2*size;
+ while(ix--) { *--hp = ESTACK_POP(stack); }
+
+ hp += 2*size;
+ factory.p = NULL;
+ factory.hp = hp;
+ /* We assume heap will suffice (see hashmap_over_estimated_heap_size) */
+
+ mess = erts_hashmap_from_array(&factory, leafs, size, 1);
+
+ if (is_non_value(mess))
+ ERTS_DDT_FAIL;
+
+ hp = factory.hp;
+ } else {
+ Eterm* tp = hp;
+ Eterm* vp;
+ flatmap_t *mp;
+
+ *tp = make_arityval(size);
+
+ hp += 1 + size;
+ mp = (flatmap_t*)hp;
+ mp->thing_word = MAP_HEADER;
+ mp->size = size;
+ mp->keys = make_tuple(tp);
+ mess = make_flatmap(mp);
+
+ hp += MAP_HEADER_SIZE + size; /* advance "heap" pointer */
+
+ tp += size; /* point at last key */
+ vp = hp - 1; /* point at last value */
+
+ while(size--) {
+ *vp-- = ESTACK_POP(stack);
+ *tp-- = ESTACK_POP(stack);
+ }
+ if (!erts_validate_and_sort_flatmap(mp))
+ ERTS_DDT_FAIL;
+ }
+ ptr++;
break;
}
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 828f5b427a..d2a8b9e7f4 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -188,6 +188,16 @@ __decl_noreturn void __noreturn erl_assert_error(const char* expr, const char *f
# define ASSERT(e) ((void) 1)
#endif
+/* ERTS_UNDEF can be used to silence false warnings about
+ * "variable may be used uninitialized" while keeping the variable
+ * marked as undefined by valgrind.
+ */
+#ifdef VALGRIND
+# define ERTS_UNDEF(V,I)
+#else
+# define ERTS_UNDEF(V,I) V = I
+#endif
+
/*
* Compile time assert
* (the actual compiler error msg can be a bit confusing)
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index b8f58754b3..3549e18538 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -190,12 +190,18 @@ erts_set_hole_marker(Eterm* ptr, Uint sz)
* Helper function for the ESTACK macros defined in global.h.
*/
void
-erl_grow_estack(ErtsEStack* s, Eterm* default_estack)
+erl_grow_estack(ErtsEStack* s, Uint need)
{
Uint old_size = (s->end - s->start);
- Uint new_size = old_size * 2;
+ Uint new_size;
Uint sp_offs = s->sp - s->start;
- if (s->start != default_estack) {
+
+ if (need < old_size)
+ new_size = 2*old_size;
+ else
+ new_size = ((need / old_size) + 2) * old_size;
+
+ if (s->start != s->edefault) {
s->start = erts_realloc(s->alloc_type, s->start,
new_size*sizeof(Eterm));
} else {
@@ -210,12 +216,18 @@ erl_grow_estack(ErtsEStack* s, Eterm* default_estack)
* Helper function for the WSTACK macros defined in global.h.
*/
void
-erl_grow_wstack(ErtsWStack* s, UWord* default_wstack)
+erl_grow_wstack(ErtsWStack* s, Uint need)
{
Uint old_size = (s->wend - s->wstart);
- Uint new_size = old_size * 2;
+ Uint new_size;
Uint sp_offs = s->wsp - s->wstart;
- if (s->wstart != default_wstack) {
+
+ if (need < old_size)
+ new_size = 2 * old_size;
+ else
+ new_size = ((need / old_size) + 2) * old_size;
+
+ if (s->wstart != s->wdefault) {
s->wstart = erts_realloc(s->alloc_type, s->wstart,
new_size*sizeof(UWord));
} else {
@@ -227,6 +239,32 @@ erl_grow_wstack(ErtsWStack* s, UWord* default_wstack)
s->wsp = s->wstart + sp_offs;
}
+/*
+ * Helper function for the PSTACK macros defined in global.h.
+ */
+void
+erl_grow_pstack(ErtsPStack* s, void* default_pstack, unsigned need_bytes)
+{
+ Uint old_size = s->pend - s->pstart;
+ Uint new_size;
+ Uint sp_offs = s->psp - s->pstart;
+
+ if (need_bytes < old_size)
+ new_size = 2 * old_size;
+ else
+ new_size = ((need_bytes / old_size) + 2) * old_size;
+
+ if (s->pstart != default_pstack) {
+ s->pstart = erts_realloc(s->alloc_type, s->pstart, new_size);
+ } else {
+ byte* new_ptr = erts_alloc(s->alloc_type, new_size);
+ sys_memcpy(new_ptr, s->pstart, old_size);
+ s->pstart = new_ptr;
+ }
+ s->pend = s->pstart + new_size;
+ s->psp = s->pstart + sp_offs;
+}
+
/* CTYPE macros */
#define LATIN1
@@ -314,6 +352,17 @@ int erts_fit_in_bits_int32(Sint32 value)
return fit_in_bits((Sint64) (Uint32) value, 4);
}
+int erts_fit_in_bits_uint(Uint value)
+{
+#if ERTS_SIZEOF_ETERM == 4
+ return fit_in_bits((Sint64) (Uint32) value, 4);
+#elif ERTS_SIZEOF_ETERM == 8
+ return fit_in_bits(value, 5);
+#else
+# error "No way, Jose"
+#endif
+}
+
int
erts_print(int to, void *arg, char *format, ...)
{
@@ -792,10 +841,10 @@ Uint32 make_hash(Eterm term_arg)
unsigned op;
/* Must not collide with the real tag_val_def's: */
-#define MAKE_HASH_TUPLE_OP 0x11
-#define MAKE_HASH_TERM_ARRAY_OP 0x12
-#define MAKE_HASH_CDR_PRE_OP 0x13
-#define MAKE_HASH_CDR_POST_OP 0x14
+#define MAKE_HASH_TUPLE_OP (FIRST_VACANT_TAG_DEF)
+#define MAKE_HASH_TERM_ARRAY_OP (FIRST_VACANT_TAG_DEF+1)
+#define MAKE_HASH_CDR_PRE_OP (FIRST_VACANT_TAG_DEF+2)
+#define MAKE_HASH_CDR_POST_OP (FIRST_VACANT_TAG_DEF+3)
/*
** Convenience macro for calculating a bytewise hash on an unsigned 32 bit
@@ -975,21 +1024,9 @@ tail_recur:
break;
}
case MAP_DEF:
+ case HASHMAP_DEF:
{
- map_t *mp = (map_t *)map_val(term);
- int size = map_get_size(mp);
- Eterm *ks = map_get_keys(mp);
- Eterm *vs = map_get_values(mp);
-
- /* Use a prime with size to remedy some of
- * the {} and <<>> hash problems */
- hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + size;
- if (size == 0)
- break;
-
- /* push values first */
- WSTACK_PUSH3(stack, (UWord)vs, (UWord) size, MAKE_HASH_TERM_ARRAY_OP);
- WSTACK_PUSH3(stack, (UWord)ks, (UWord) size, MAKE_HASH_TERM_ARRAY_OP);
+ hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + make_hash2(term);
break;
}
case TUPLE_DEF:
@@ -1095,10 +1132,11 @@ Uint32
make_hash2(Eterm term)
{
Uint32 hash;
- Uint32 hash_xor_keys = 0;
- Uint32 hash_xor_values = 0;
+ Uint32 hash_xor_pairs;
DeclareTmpHeapNoproc(tmp_big,2);
+ ERTS_UNDEF(hash_xor_pairs, 0);
+
/* (HCONST * {2, ..., 16}) mod 2^32 */
#define HCONST_2 0x3c6ef372UL
#define HCONST_3 0xdaa66d2bUL
@@ -1115,10 +1153,15 @@ make_hash2(Eterm term)
#define HCONST_14 0xa708a81eUL
#define HCONST_15 0x454021d7UL
#define HCONST_16 0xe3779b90UL
+#define HCONST_17 0x81af1549UL
+#define HCONST_18 0x1fe68f02UL
+#define HCONST_19 0xbe1e08bbUL
+#define HCONST_20 0x5c558274UL
+#define HCONST_21 0xfa8cfc2dUL
#define HASH_MAP_TAIL (_make_header(1,_TAG_HEADER_REF))
-#define HASH_MAP_KEY (_make_header(2,_TAG_HEADER_REF))
-#define HASH_MAP_VAL (_make_header(3,_TAG_HEADER_REF))
+#define HASH_MAP_PAIR (_make_header(2,_TAG_HEADER_REF))
+#define HASH_CDR (_make_header(3,_TAG_HEADER_REF))
#define UINT32_HASH_2(Expr1, Expr2, AConst) \
do { \
@@ -1141,6 +1184,13 @@ make_hash2(Eterm term)
} while(0)
#define IS_SSMALL28(x) (((Uint) (((x) >> (28-1)) + 1)) < 2)
+
+#ifdef ARCH_64
+# define POINTER_HASH(Ptr, AConst) UINT32_HASH_2((Uint32)(UWord)(Ptr), (((UWord)(Ptr)) >> 32), AConst)
+#else
+# define POINTER_HASH(Ptr, AConst) UINT32_HASH(Ptr, AConst)
+#endif
+
/* Optimization. Simple cases before declaration of estack. */
if (primary_tag(term) == TAG_PRIMARY_IMMED1) {
switch (term & _TAG_IMMED1_MASK) {
@@ -1195,9 +1245,9 @@ make_hash2(Eterm term)
if (c > 0)
UINT32_HASH(sh, HCONST_4);
if (is_list(term)) {
- term = *ptr;
- tmp = *++ptr;
- ESTACK_PUSH(s, tmp);
+ tmp = CDR(ptr);
+ ESTACK_PUSH(s, tmp);
+ term = CAR(ptr);
}
}
break;
@@ -1214,46 +1264,92 @@ make_hash2(Eterm term)
UINT32_HASH(arity, HCONST_9);
if (arity == 0) /* Empty tuple */
goto hash2_common;
- for (i = arity; i >= 1; i--) {
- tmp = elem[i];
- ESTACK_PUSH(s, tmp);
+ for (i = arity; ; i--) {
+ term = elem[i];
+ if (i == 1)
+ break;
+ ESTACK_PUSH(s, term);
}
- goto hash2_common;
}
break;
case MAP_SUBTAG:
{
- map_t *mp = (map_t *)map_val(term);
+ flatmap_t *mp = (flatmap_t *)flatmap_val(term);
int i;
- int size = map_get_size(mp);
- Eterm *ks = map_get_keys(mp);
- Eterm *vs = map_get_values(mp);
+ int size = flatmap_get_size(mp);
+ Eterm *ks = flatmap_get_keys(mp);
+ Eterm *vs = flatmap_get_values(mp);
UINT32_HASH(size, HCONST_16);
if (size == 0) {
goto hash2_common;
}
- ESTACK_PUSH4(s, hash_xor_values, hash_xor_keys, hash, HASH_MAP_TAIL);
- hash = 0;
- hash_xor_keys = 0;
- hash_xor_values = 0;
- for (i = size - 1; i >= 0; i--) {
- tmp = vs[i];
- ESTACK_PUSH2(s, HASH_MAP_VAL, tmp);
- }
- /* We do not want to expose the tuple representation.
- * Do not push the keys as a tuple.
+ /* We want a portable hash function that is *independent* of
+ * the order in which keys and values are encountered.
+ * We therefore calculate context independent hashes for all .
+ * key-value pairs and then xor them together.
*/
+ ESTACK_PUSH(s, hash_xor_pairs);
+ ESTACK_PUSH(s, hash);
+ ESTACK_PUSH(s, HASH_MAP_TAIL);
+ hash = 0;
+ hash_xor_pairs = 0;
for (i = size - 1; i >= 0; i--) {
- tmp = ks[i];
- ESTACK_PUSH2(s, HASH_MAP_KEY, tmp);
+ ESTACK_PUSH(s, HASH_MAP_PAIR);
+ ESTACK_PUSH(s, vs[i]);
+ ESTACK_PUSH(s, ks[i]);
}
goto hash2_common;
}
break;
+ case HASHMAP_SUBTAG:
+ {
+ Eterm* ptr = boxed_val(term) + 1;
+ Uint size;
+ int i;
+ switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ size = *ptr++;
+ UINT32_HASH(size, HCONST_16);
+ if (size == 0)
+ goto hash2_common;
+ ESTACK_PUSH(s, hash_xor_pairs);
+ ESTACK_PUSH(s, hash);
+ ESTACK_PUSH(s, HASH_MAP_TAIL);
+ hash = 0;
+ hash_xor_pairs = 0;
+ }
+ switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ case HAMT_SUBTAG_NODE_ARRAY:
+ i = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ case HAMT_SUBTAG_NODE_BITMAP:
+ i = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ break;
+ default:
+ erl_exit(1, "bad header");
+ }
+ while (i) {
+ if (is_list(*ptr)) {
+ Eterm* cons = list_val(*ptr);
+ ESTACK_PUSH(s, HASH_MAP_PAIR);
+ ESTACK_PUSH(s, CDR(cons));
+ ESTACK_PUSH(s, CAR(cons));
+ }
+ else {
+ ASSERT(is_boxed(*ptr));
+ ESTACK_PUSH(s, *ptr);
+ }
+ i--; ptr++;
+ }
+ goto hash2_common;
+ }
+ break;
case EXPORT_SUBTAG:
{
Export* ep = *((Export **) (export_val(term) + 1));
-
UINT32_HASH_2
(ep->code[2],
atom_tab(atom_val(ep->code[0]))->slot.bucket.hvalue,
@@ -1268,7 +1364,6 @@ make_hash2(Eterm term)
{
ErlFunThing* funp = (ErlFunThing *) fun_val(term);
Uint num_free = funp->num_free;
-
UINT32_HASH_2
(num_free,
atom_tab(atom_val(funp->fe->module))->slot.bucket.hvalue,
@@ -1349,7 +1444,8 @@ make_hash2(Eterm term)
do {
Uint t;
Uint32 x, y;
- t = i < n ? BIG_DIGIT(ptr, i++) : 0;
+ ASSERT(i < n);
+ t = BIG_DIGIT(ptr, i++);
x = t & 0xffffffff;
y = t >> 32;
UINT32_HASH_2(x, y, con);
@@ -1457,20 +1553,397 @@ make_hash2(Eterm term)
switch (term) {
case HASH_MAP_TAIL: {
hash = (Uint32) ESTACK_POP(s);
- UINT32_HASH(hash_xor_keys, HCONST_16);
- UINT32_HASH(hash_xor_values, HCONST_16);
- hash_xor_keys = (Uint32) ESTACK_POP(s);
- hash_xor_values = (Uint32) ESTACK_POP(s);
+ UINT32_HASH(hash_xor_pairs, HCONST_19);
+ hash_xor_pairs = (Uint32) ESTACK_POP(s);
goto hash2_common;
}
- case HASH_MAP_KEY:
- hash_xor_keys ^= hash;
+ case HASH_MAP_PAIR:
+ hash_xor_pairs ^= hash;
hash = 0;
goto hash2_common;
- case HASH_MAP_VAL:
- hash_xor_values ^= hash;
+ default:
+ break;
+ }
+ }
+ }
+ }
+}
+
+/* Term hash function for internal use.
+ *
+ * Limitation #1: Is not "portable" in any way between different VM instances.
+ *
+ * Limitation #2: The hash value is only valid as long as the term exists
+ * somewhere in the VM. Why? Because external pids, ports and refs are hashed
+ * by mixing the node *pointer* value. If a node disappears and later reappears
+ * with a new ErlNode struct, externals from that node will hash different than
+ * before.
+ *
+ * One IMPORTANT property must hold (for hamt).
+ * EVERY BIT of the term that is significant for equality (see EQ)
+ * MUST BE USED AS INPUT FOR THE HASH. Two different terms must always have a
+ * chance of hashing different when salted: hash([Salt|A]) vs hash([Salt|B]).
+ *
+ * This is why we can not use cached hash values for atoms for example.
+ *
+ */
+
+#define CONST_HASH(AConst) \
+do { /* Lightweight mixing of constant (type info) */ \
+ hash ^= AConst; \
+ hash = (hash << 17) ^ (hash >> (32-17)); \
+} while (0)
+
+Uint32
+make_internal_hash(Eterm term)
+{
+ Uint32 hash;
+ Uint32 hash_xor_pairs;
+
+ ERTS_UNDEF(hash_xor_pairs, 0);
+
+ /* Optimization. Simple cases before declaration of estack. */
+ if (primary_tag(term) == TAG_PRIMARY_IMMED1) {
+ hash = 0;
+ #if ERTS_SIZEOF_ETERM == 8
+ UINT32_HASH_2((Uint32)term, (Uint32)(term >> 32), HCONST);
+ #elif ERTS_SIZEOF_ETERM == 4
+ UINT32_HASH(term, HCONST);
+ #else
+ # error "No you don't"
+ #endif
+ return hash;
+ }
+ {
+ Eterm tmp;
+ DECLARE_ESTACK(s);
+
+ UseTmpHeapNoproc(2);
+ hash = 0;
+ for (;;) {
+ switch (primary_tag(term)) {
+ case TAG_PRIMARY_LIST:
+ {
+ int c = 0;
+ Uint32 sh = 0;
+ Eterm* ptr = list_val(term);
+ while (is_byte(*ptr)) {
+ /* Optimization for strings. */
+ sh = (sh << 8) + unsigned_val(*ptr);
+ if (c == 3) {
+ UINT32_HASH(sh, HCONST_4);
+ c = sh = 0;
+ } else {
+ c++;
+ }
+ term = CDR(ptr);
+ if (is_not_list(term))
+ break;
+ ptr = list_val(term);
+ }
+ if (c > 0)
+ UINT32_HASH(sh, HCONST_4);
+ if (is_list(term)) {
+ tmp = CDR(ptr);
+ CONST_HASH(HCONST_17); /* Hash CAR in cons cell */
+ ESTACK_PUSH(s, tmp);
+ if (is_not_list(tmp)) {
+ ESTACK_PUSH(s, HASH_CDR);
+ }
+ term = CAR(ptr);
+ }
+ }
+ break;
+ case TAG_PRIMARY_BOXED:
+ {
+ Eterm hdr = *boxed_val(term);
+ ASSERT(is_header(hdr));
+ switch (hdr & _TAG_HEADER_MASK) {
+ case ARITYVAL_SUBTAG:
+ {
+ int i;
+ int arity = header_arity(hdr);
+ Eterm* elem = tuple_val(term);
+ UINT32_HASH(arity, HCONST_9);
+ if (arity == 0) /* Empty tuple */
+ goto pop_next;
+ for (i = arity; ; i--) {
+ term = elem[i];
+ if (i == 1)
+ break;
+ ESTACK_PUSH(s, term);
+ }
+ }
+ break;
+ case MAP_SUBTAG:
+ {
+ flatmap_t *mp = (flatmap_t *)flatmap_val(term);
+ int i;
+ int size = flatmap_get_size(mp);
+ Eterm *ks = flatmap_get_keys(mp);
+ Eterm *vs = flatmap_get_values(mp);
+ UINT32_HASH(size, HCONST_16);
+ if (size == 0) {
+ goto pop_next;
+ }
+ /* We want a hash function that is *independent* of
+ * the order in which keys and values are encountered.
+ * We therefore calculate context independent hashes for all .
+ * key-value pairs and then xor them together.
+ */
+ ESTACK_PUSH(s, hash_xor_pairs);
+ ESTACK_PUSH(s, hash);
+ ESTACK_PUSH(s, HASH_MAP_TAIL);
+ hash = 0;
+ hash_xor_pairs = 0;
+ for (i = size - 1; i >= 0; i--) {
+ ESTACK_PUSH(s, HASH_MAP_PAIR);
+ ESTACK_PUSH(s, vs[i]);
+ ESTACK_PUSH(s, ks[i]);
+ }
+ goto pop_next;
+ }
+ break;
+ case HASHMAP_SUBTAG:
+ {
+ Eterm* ptr = boxed_val(term) + 1;
+ Uint size;
+ int i;
+ switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ size = *ptr++;
+ UINT32_HASH(size, HCONST_16);
+ if (size == 0)
+ goto pop_next;
+ ESTACK_PUSH(s, hash_xor_pairs);
+ ESTACK_PUSH(s, hash);
+ ESTACK_PUSH(s, HASH_MAP_TAIL);
+ hash = 0;
+ hash_xor_pairs = 0;
+ }
+ switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ case HAMT_SUBTAG_NODE_ARRAY:
+ i = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ case HAMT_SUBTAG_NODE_BITMAP:
+ i = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ break;
+ default:
+ erl_exit(1, "bad header");
+ }
+ while (i) {
+ if (is_list(*ptr)) {
+ Eterm* cons = list_val(*ptr);
+ ESTACK_PUSH(s, HASH_MAP_PAIR);
+ ESTACK_PUSH(s, CDR(cons));
+ ESTACK_PUSH(s, CAR(cons));
+ }
+ else {
+ ASSERT(is_boxed(*ptr));
+ ESTACK_PUSH(s, *ptr);
+ }
+ i--; ptr++;
+ }
+ goto pop_next;
+ }
+ break;
+ case EXPORT_SUBTAG:
+ {
+ Export* ep = *((Export **) (export_val(term) + 1));
+ /* Assumes Export entries never moves */
+ POINTER_HASH(ep, HCONST_14);
+ goto pop_next;
+ }
+
+ case FUN_SUBTAG:
+ {
+ ErlFunThing* funp = (ErlFunThing *) fun_val(term);
+ Uint num_free = funp->num_free;
+ UINT32_HASH_2(num_free, funp->fe->module, HCONST_20);
+ UINT32_HASH_2(funp->fe->old_index, funp->fe->old_uniq, HCONST_21);
+ if (num_free == 0) {
+ goto pop_next;
+ } else {
+ Eterm* bptr = funp->env + num_free - 1;
+ while (num_free-- > 1) {
+ term = *bptr--;
+ ESTACK_PUSH(s, term);
+ }
+ term = *bptr;
+ }
+ }
+ break;
+ case REFC_BINARY_SUBTAG:
+ case HEAP_BINARY_SUBTAG:
+ case SUB_BINARY_SUBTAG:
+ {
+ byte* bptr;
+ unsigned sz = binary_size(term);
+ Uint32 con = HCONST_13 + hash;
+ Uint bitoffs;
+ Uint bitsize;
+
+ ERTS_GET_BINARY_BYTES(term, bptr, bitoffs, bitsize);
+ if (sz == 0 && bitsize == 0) {
+ hash = con;
+ } else {
+ if (bitoffs == 0) {
+ hash = block_hash(bptr, sz, con);
+ if (bitsize > 0) {
+ UINT32_HASH_2(bitsize, (bptr[sz] >> (8 - bitsize)),
+ HCONST_15);
+ }
+ } else {
+ byte* buf = (byte *) erts_alloc(ERTS_ALC_T_TMP,
+ sz + (bitsize != 0));
+ erts_copy_bits(bptr, bitoffs, 1, buf, 0, 1, sz*8+bitsize);
+ hash = block_hash(buf, sz, con);
+ if (bitsize > 0) {
+ UINT32_HASH_2(bitsize, (buf[sz] >> (8 - bitsize)),
+ HCONST_15);
+ }
+ erts_free(ERTS_ALC_T_TMP, (void *) buf);
+ }
+ }
+ goto pop_next;
+ }
+ break;
+ case POS_BIG_SUBTAG:
+ case NEG_BIG_SUBTAG:
+ {
+ Eterm* ptr = big_val(term);
+ Uint i = 0;
+ Uint n = BIG_SIZE(ptr);
+ Uint32 con = BIG_SIGN(ptr) ? HCONST_10 : HCONST_11;
+#if D_EXP == 16
+ do {
+ Uint32 x, y;
+ x = i < n ? BIG_DIGIT(ptr, i++) : 0;
+ x += (Uint32)(i < n ? BIG_DIGIT(ptr, i++) : 0) << 16;
+ y = i < n ? BIG_DIGIT(ptr, i++) : 0;
+ y += (Uint32)(i < n ? BIG_DIGIT(ptr, i++) : 0) << 16;
+ UINT32_HASH_2(x, y, con);
+ } while (i < n);
+#elif D_EXP == 32
+ do {
+ Uint32 x, y;
+ x = i < n ? BIG_DIGIT(ptr, i++) : 0;
+ y = i < n ? BIG_DIGIT(ptr, i++) : 0;
+ UINT32_HASH_2(x, y, con);
+ } while (i < n);
+#elif D_EXP == 64
+ do {
+ Uint t;
+ Uint32 x, y;
+ ASSERT(i < n);
+ t = BIG_DIGIT(ptr, i++);
+ x = t & 0xffffffff;
+ y = t >> 32;
+ UINT32_HASH_2(x, y, con);
+ } while (i < n);
+#else
+#error "unsupported D_EXP size"
+#endif
+ goto pop_next;
+ }
+ break;
+ case REF_SUBTAG:
+ UINT32_HASH(internal_ref_numbers(term)[0], HCONST_7);
+ ASSERT(internal_ref_no_of_numbers(term) == 3);
+ UINT32_HASH_2(internal_ref_numbers(term)[1],
+ internal_ref_numbers(term)[2], HCONST_8);
+ goto pop_next;
+
+ case EXTERNAL_REF_SUBTAG:
+ {
+ ExternalThing* thing = external_thing_ptr(term);
+
+ ASSERT(external_thing_ref_no_of_numbers(thing) == 3);
+ /* See limitation #2 */
+ #ifdef ARCH_64
+ POINTER_HASH(thing->node, HCONST_7);
+ UINT32_HASH(external_thing_ref_numbers(thing)[0], HCONST_7);
+ #else
+ UINT32_HASH_2(thing->node,
+ external_thing_ref_numbers(thing)[0], HCONST_7);
+ #endif
+ UINT32_HASH_2(external_thing_ref_numbers(thing)[1],
+ external_thing_ref_numbers(thing)[2], HCONST_8);
+ goto pop_next;
+ }
+ case EXTERNAL_PID_SUBTAG: {
+ ExternalThing* thing = external_thing_ptr(term);
+ /* See limitation #2 */
+ #ifdef ARCH_64
+ POINTER_HASH(thing->node, HCONST_5);
+ UINT32_HASH(thing->data.ui[0], HCONST_5);
+ #else
+ UINT32_HASH_2(thing->node, thing->data.ui[0], HCONST_5);
+ #endif
+ goto pop_next;
+ }
+ case EXTERNAL_PORT_SUBTAG: {
+ ExternalThing* thing = external_thing_ptr(term);
+ /* See limitation #2 */
+ #ifdef ARCH_64
+ POINTER_HASH(thing->node, HCONST_6);
+ UINT32_HASH(thing->data.ui[0], HCONST_6);
+ #else
+ UINT32_HASH_2(thing->node, thing->data.ui[0], HCONST_6);
+ #endif
+ goto pop_next;
+ }
+ case FLOAT_SUBTAG:
+ {
+ FloatDef ff;
+ GET_DOUBLE(term, ff);
+ UINT32_HASH_2(ff.fw[0], ff.fw[1], HCONST_12);
+ goto pop_next;
+ }
+
+ default:
+ erl_exit(1, "Invalid tag in make_hash2(0x%X)\n", term);
+ }
+ }
+ break;
+ case TAG_PRIMARY_IMMED1:
+ #if ERTS_SIZEOF_ETERM == 8
+ UINT32_HASH_2((Uint32)term, (Uint32)(term >> 32), HCONST);
+ #else
+ UINT32_HASH(term, HCONST);
+ #endif
+ goto pop_next;
+
+ default:
+ erl_exit(1, "Invalid tag in make_hash2(0x%X)\n", term);
+
+ pop_next:
+ if (ESTACK_ISEMPTY(s)) {
+ DESTROY_ESTACK(s);
+ UnUseTmpHeapNoproc(2);
+ return hash;
+ }
+
+ term = ESTACK_POP(s);
+
+ switch (term) {
+ case HASH_MAP_TAIL: {
+ hash = (Uint32) ESTACK_POP(s);
+ UINT32_HASH(hash_xor_pairs, HCONST_19);
+ hash_xor_pairs = (Uint32) ESTACK_POP(s);
+ goto pop_next;
+ }
+ case HASH_MAP_PAIR:
+ hash_xor_pairs ^= hash;
hash = 0;
- goto hash2_common;
+ goto pop_next;
+
+ case HASH_CDR:
+ CONST_HASH(HCONST_18); /* Hash CDR i cons cell */
+ goto pop_next;
default:
break;
}
@@ -1478,9 +1951,10 @@ make_hash2(Eterm term)
}
}
+#undef CONST_HASH
#undef HASH_MAP_TAIL
-#undef HASH_MAP_KEY
-#undef HASH_MAP_VAL
+#undef HASH_MAP_PAIR
+#undef HASH_CDR
#undef UINT32_HASH_2
#undef UINT32_HASH
@@ -1697,21 +2171,9 @@ tail_recur:
break;
case MAP_DEF:
+ case HASHMAP_DEF:
{
- map_t *mp = (map_t *)map_val(term);
- int size = map_get_size(mp);
- Eterm *ks = map_get_keys(mp);
- Eterm *vs = map_get_values(mp);
-
- /* Use a prime with size to remedy some of
- * the {} and <<>> hash problems */
- hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + size;
- if (size == 0)
- break;
-
- /* push values first */
- WSTACK_PUSH3(stack, (UWord)vs, (UWord) size, MAKE_HASH_TERM_ARRAY_OP);
- WSTACK_PUSH3(stack, (UWord)ks, (UWord) size, MAKE_HASH_TERM_ARRAY_OP);
+ hash = hash*FUNNY_NUMBER13 + FUNNY_NUMBER14 + make_hash2(term);
break;
}
case TUPLE_DEF:
@@ -2120,13 +2582,13 @@ tailrecur_ne:
}
case MAP_SUBTAG:
{
- aa = map_val_rel(a, a_base);
+ aa = flatmap_val_rel(a, a_base);
if (!is_boxed(b) || *boxed_val_rel(b,b_base) != *aa)
goto not_equal;
- bb = map_val_rel(b,b_base);
- sz = map_get_size((map_t*)aa);
+ bb = flatmap_val_rel(b,b_base);
+ sz = flatmap_get_size((flatmap_t*)aa);
- if (sz != map_get_size((map_t*)bb)) goto not_equal;
+ if (sz != flatmap_get_size((flatmap_t*)bb)) goto not_equal;
if (sz == 0) goto pop_next;
aa += 2;
@@ -2325,6 +2787,32 @@ tailrecur_ne:
}
break; /* not equal */
}
+ case HASHMAP_SUBTAG:
+ {
+ if (!is_boxed(b) || *boxed_val_rel(b,b_base) != hdr)
+ goto not_equal;
+
+ aa = hashmap_val_rel(a, a_base) + 1;
+ bb = hashmap_val_rel(b, b_base) + 1;
+ switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ aa++; bb++;
+ case HAMT_SUBTAG_NODE_ARRAY:
+ sz = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ aa++; bb++;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ASSERT(sz > 0 && sz < 16);
+ break;
+ default:
+ erl_exit(1, "Unknown hashmap subsubtag\n");
+ }
+ goto term_array;
+ }
+ default:
+ ASSERT(!"Unknown boxed subtab in EQ");
}
break;
}
@@ -2448,7 +2936,18 @@ Sint erts_cmp_rel_opt(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base, int exact)
Sint erts_cmp(Eterm a, Eterm b, int exact)
#endif
{
- DECLARE_WSTACK(stack);
+#define PSTACK_TYPE struct erts_cmp_hashmap_state
+ struct erts_cmp_hashmap_state {
+ Sint wstack_rollback;
+ int was_exact;
+ Eterm *ap;
+ Eterm *bp;
+ Eterm min_key;
+ Sint cmp_res; /* result so far -1,0,+1 */
+ };
+ PSTACK_DECLARE(hmap_stack, 1);
+ WSTACK_DECLARE(stack);
+ WSTACK_DECLARE(b_stack); /* only used by hashmaps */
Eterm* aa;
Eterm* bb;
int i;
@@ -2464,6 +2963,26 @@ Sint erts_cmp(Eterm a, Eterm b, int exact)
Uint32 *anum;
Uint32 *bnum;
+/* The WSTACK contains naked Eterms and Operations marked with header-tags */
+#define OP_BITS 4
+#define OP_MASK 0xF
+#define TERM_ARRAY_OP 0
+#define SWITCH_EXACT_OFF_OP 1
+#define HASHMAP_PHASE1_ARE_KEYS_EQUAL 2
+#define HASHMAP_PHASE1_IS_MIN_KEY 3
+#define HASHMAP_PHASE1_CMP_VALUES 4
+#define HASHMAP_PHASE2_ARE_KEYS_EQUAL 5
+#define HASHMAP_PHASE2_IS_MIN_KEY_A 6
+#define HASHMAP_PHASE2_IS_MIN_KEY_B 7
+
+
+#define OP_WORD(OP) (((OP) << _TAG_PRIMARY_SIZE) | TAG_PRIMARY_HEADER)
+#define TERM_ARRAY_OP_WORD(SZ) OP_WORD(((SZ) << OP_BITS) | TERM_ARRAY_OP)
+
+#define GET_OP(WORD) (ASSERT(is_header(WORD)), ((WORD) >> _TAG_PRIMARY_SIZE) & OP_MASK)
+#define GET_OP_ARG(WORD) (ASSERT(is_header(WORD)), ((WORD) >> (OP_BITS + _TAG_PRIMARY_SIZE)))
+
+
#define RETURN_NEQ(cmp) { j=(cmp); ASSERT(j != 0); goto not_equal; }
#define ON_CMP_GOTO(cmp) if ((j=(cmp)) == 0) goto pop_next; else goto not_equal
@@ -2479,6 +2998,8 @@ Sint erts_cmp(Eterm a, Eterm b, int exact)
} while (0)
+bodyrecur:
+ j = 0;
tailrecur:
if (is_same(a,a_base,b,b_base)) { /* Equal values or pointers. */
goto pop_next;
@@ -2606,24 +3127,83 @@ tailrecur_ne:
++bb;
goto term_array;
case (_TAG_HEADER_MAP >> _TAG_PRIMARY_SIZE) :
- if (!is_map_rel(b,b_base)) {
+ if (!is_flatmap_rel(b,b_base)) {
a_tag = MAP_DEF;
goto mixed_types;
}
- aa = (Eterm *)map_val_rel(a,a_base);
- bb = (Eterm *)map_val_rel(b,b_base);
+ aa = (Eterm *)flatmap_val_rel(a,a_base);
+ bb = (Eterm *)flatmap_val_rel(b,b_base);
- i = map_get_size((map_t*)aa);
- if (i != map_get_size((map_t*)bb)) {
- RETURN_NEQ((int)(i - map_get_size((map_t*)bb)));
+ i = flatmap_get_size((flatmap_t*)aa);
+ if (i != flatmap_get_size((flatmap_t*)bb)) {
+ RETURN_NEQ((int)(i - flatmap_get_size((flatmap_t*)bb)));
}
if (i == 0) {
goto pop_next;
}
aa += 2;
bb += 2;
- i += 1; /* increment for tuple-keys */
- goto term_array;
+ if (exact) {
+ i += 1; /* increment for tuple-keys */
+ goto term_array;
+ }
+ else {
+ /* Value array */
+ WSTACK_PUSH3(stack, (UWord)(bb+1), (UWord)(aa+1), TERM_ARRAY_OP_WORD(i));
+ /* Switch back from 'exact' key compare */
+ WSTACK_PUSH(stack, OP_WORD(SWITCH_EXACT_OFF_OP));
+ /* Now do 'exact' compare of key tuples */
+ a = *aa;
+ b = *bb;
+ exact = 1;
+ goto bodyrecur;
+ }
+
+ case (_TAG_HEADER_HASHMAP >> _TAG_PRIMARY_SIZE) :
+ {
+ struct erts_cmp_hashmap_state* sp;
+ if (!is_hashmap_rel(b,b_base)) {
+ a_tag = HASHMAP_DEF;
+ goto mixed_types;
+ }
+ i = hashmap_size_rel(a,a_base) - hashmap_size_rel(b,b_base);
+ if (i) {
+ RETURN_NEQ(i);
+ }
+ if (hashmap_size_rel(a,a_base) == 0) {
+ goto pop_next;
+ }
+
+ /* Hashmap compare strategy:
+ Phase 1. While keys are identical
+ Do synchronous stepping through leafs of both trees in hash
+ order. Maintain value compare result of minimal key.
+
+ Phase 2. If key diff was found in phase 1
+ Ignore values from now on.
+ Continue iterate trees by always advancing the one
+ lagging behind hash-wise. Identical keys are skipped.
+ A minimal key can only be candidate as tie-breaker if we
+ have passed that hash value in the other tree (which means
+ the key did not exist in the other tree).
+ */
+
+ sp = PSTACK_PUSH(hmap_stack);
+ hashmap_iterator_init(&stack, a, 0);
+ hashmap_iterator_init(&b_stack, b, 0);
+ sp->ap = hashmap_iterator_next(&stack);
+ sp->bp = hashmap_iterator_next(&b_stack);
+ sp->cmp_res = 0;
+ ASSERT(sp->ap && sp->bp);
+
+ a = CAR(sp->ap);
+ b = CAR(sp->bp);
+ sp->was_exact = exact;
+ exact = 1;
+ WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_ARE_KEYS_EQUAL));
+ sp->wstack_rollback = WSTACK_COUNT(stack);
+ goto bodyrecur;
+ }
case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE):
if (!is_float_rel(b,b_base)) {
a_tag = FLOAT_DEF;
@@ -2983,8 +3563,7 @@ term_array: /* arrays in 'aa' and 'bb', length in 'i' */
goto not_equal;
}
} else {
- /* (ab)Use TAG_PRIMARY_HEADER to recognize a term_array */
- WSTACK_PUSH3(stack, i, (UWord)bb, (UWord)aa | TAG_PRIMARY_HEADER);
+ WSTACK_PUSH3(stack, (UWord)bb, (UWord)aa, TERM_ARRAY_OP_WORD(i));
goto tailrecur_ne;
}
}
@@ -2996,22 +3575,179 @@ term_array: /* arrays in 'aa' and 'bb', length in 'i' */
pop_next:
if (!WSTACK_ISEMPTY(stack)) {
UWord something = WSTACK_POP(stack);
- if (primary_tag((Eterm) something) == TAG_PRIMARY_HEADER) { /* a term_array */
- aa = (Eterm*) something;
- bb = (Eterm*) WSTACK_POP(stack);
- i = WSTACK_POP(stack);
- goto term_array;
+ struct erts_cmp_hashmap_state* sp;
+ if (primary_tag((Eterm) something) == TAG_PRIMARY_HEADER) { /* an operation */
+ switch (GET_OP(something)) {
+ case TERM_ARRAY_OP:
+ i = GET_OP_ARG(something);
+ aa = (Eterm*)WSTACK_POP(stack);
+ bb = (Eterm*) WSTACK_POP(stack);
+ goto term_array;
+
+ case SWITCH_EXACT_OFF_OP:
+ /* Done with exact compare of map keys, switch back */
+ ASSERT(exact);
+ exact = 0;
+ goto pop_next;
+
+ case HASHMAP_PHASE1_ARE_KEYS_EQUAL: {
+ sp = PSTACK_TOP(hmap_stack);
+ if (j) {
+ /* Key diff found, enter phase 2 */
+ if (hashmap_key_hash_cmp(sp->ap, sp->bp) < 0) {
+ sp->min_key = CAR(sp->ap);
+ sp->cmp_res = -1;
+ sp->ap = hashmap_iterator_next(&stack);
+ }
+ else {
+ sp->min_key = CAR(sp->bp);
+ sp->cmp_res = 1;
+ sp->bp = hashmap_iterator_next(&b_stack);
+ }
+ exact = 1; /* only exact key compares in phase 2 */
+ goto case_HASHMAP_PHASE2_LOOP;
+ }
+
+ /* No key diff found so far, compare values if min key */
+
+ if (sp->cmp_res) {
+ a = CAR(sp->ap);
+ b = sp->min_key;
+ exact = 1;
+ WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_IS_MIN_KEY));
+ sp->wstack_rollback = WSTACK_COUNT(stack);
+ goto bodyrecur;
+ }
+ /* no min key-value found yet */
+ a = CDR(sp->ap);
+ b = CDR(sp->bp);
+ exact = sp->was_exact;
+ WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_CMP_VALUES));
+ sp->wstack_rollback = WSTACK_COUNT(stack);
+ goto bodyrecur;
+ }
+ case HASHMAP_PHASE1_IS_MIN_KEY:
+ sp = PSTACK_TOP(hmap_stack);
+ if (j < 0) {
+ a = CDR(sp->ap);
+ b = CDR(sp->bp);
+ exact = sp->was_exact;
+ WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_CMP_VALUES));
+ sp->wstack_rollback = WSTACK_COUNT(stack);
+ goto bodyrecur;
+ }
+ goto case_HASHMAP_PHASE1_LOOP;
+
+ case HASHMAP_PHASE1_CMP_VALUES:
+ sp = PSTACK_TOP(hmap_stack);
+ if (j) {
+ sp->cmp_res = j;
+ sp->min_key = CAR(sp->ap);
+ }
+ case_HASHMAP_PHASE1_LOOP:
+ sp->ap = hashmap_iterator_next(&stack);
+ sp->bp = hashmap_iterator_next(&b_stack);
+ if (!sp->ap) {
+ /* end of maps with identical keys */
+ ASSERT(!sp->bp);
+ j = sp->cmp_res;
+ exact = sp->was_exact;
+ (void) PSTACK_POP(hmap_stack);
+ ON_CMP_GOTO(j);
+ }
+ a = CAR(sp->ap);
+ b = CAR(sp->bp);
+ exact = 1;
+ WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE1_ARE_KEYS_EQUAL));
+ sp->wstack_rollback = WSTACK_COUNT(stack);
+ goto bodyrecur;
+
+ case_HASHMAP_PHASE2_LOOP:
+ if (sp->ap && sp->bp) {
+ a = CAR(sp->ap);
+ b = CAR(sp->bp);
+ ASSERT(exact);
+ WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE2_ARE_KEYS_EQUAL));
+ sp->wstack_rollback = WSTACK_COUNT(stack);
+ goto bodyrecur;
+ }
+ goto case_HASHMAP_PHASE2_NEXT_STEP;
+
+ case HASHMAP_PHASE2_ARE_KEYS_EQUAL:
+ sp = PSTACK_TOP(hmap_stack);
+ if (j == 0) {
+ /* keys are equal, skip them */
+ sp->ap = hashmap_iterator_next(&stack);
+ sp->bp = hashmap_iterator_next(&b_stack);
+ goto case_HASHMAP_PHASE2_LOOP;
+ }
+ /* fall through */
+ case_HASHMAP_PHASE2_NEXT_STEP:
+ if (sp->ap || sp->bp) {
+ if (hashmap_key_hash_cmp(sp->ap, sp->bp) < 0) {
+ ASSERT(sp->ap);
+ a = CAR(sp->ap);
+ b = sp->min_key;
+ ASSERT(exact);
+ WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE2_IS_MIN_KEY_A));
+ }
+ else { /* hash_cmp > 0 */
+ ASSERT(sp->bp);
+ a = CAR(sp->bp);
+ b = sp->min_key;
+ ASSERT(exact);
+ WSTACK_PUSH(stack, OP_WORD(HASHMAP_PHASE2_IS_MIN_KEY_B));
+ }
+ sp->wstack_rollback = WSTACK_COUNT(stack);
+ goto bodyrecur;
+ }
+ /* End of both maps */
+ j = sp->cmp_res;
+ exact = sp->was_exact;
+ (void) PSTACK_POP(hmap_stack);
+ ON_CMP_GOTO(j);
+
+ case HASHMAP_PHASE2_IS_MIN_KEY_A:
+ sp = PSTACK_TOP(hmap_stack);
+ if (j < 0) {
+ sp->min_key = CAR(sp->ap);
+ sp->cmp_res = -1;
+ }
+ sp->ap = hashmap_iterator_next(&stack);
+ goto case_HASHMAP_PHASE2_LOOP;
+
+ case HASHMAP_PHASE2_IS_MIN_KEY_B:
+ sp = PSTACK_TOP(hmap_stack);
+ if (j < 0) {
+ sp->min_key = CAR(sp->bp);
+ sp->cmp_res = 1;
+ }
+ sp->bp = hashmap_iterator_next(&b_stack);
+ goto case_HASHMAP_PHASE2_LOOP;
+
+ default:
+ ASSERT(!"Invalid cmp op");
+ } /* switch */
}
a = (Eterm) something;
b = (Eterm) WSTACK_POP(stack);
goto tailrecur;
}
- DESTROY_WSTACK(stack);
+ ASSERT(PSTACK_IS_EMPTY(hmap_stack));
+ PSTACK_DESTROY(hmap_stack);
+ WSTACK_DESTROY(stack);
+ WSTACK_DESTROY(b_stack);
return 0;
not_equal:
- DESTROY_WSTACK(stack);
+ if (!PSTACK_IS_EMPTY(hmap_stack)) {
+ WSTACK_ROLLBACK(stack, PSTACK_TOP(hmap_stack)->wstack_rollback);
+ goto pop_next;
+ }
+ PSTACK_DESTROY(hmap_stack);
+ WSTACK_DESTROY(stack);
+ WSTACK_DESTROY(b_stack);
return j;
#undef CMP_NODES