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-rw-r--r--erts/emulator/beam/erl_db.c8
-rw-r--r--erts/emulator/beam/erl_db_hash.c28
-rw-r--r--erts/emulator/beam/erl_db_tree.c16
-rw-r--r--erts/emulator/beam/erl_db_util.c391
-rw-r--r--erts/emulator/beam/erl_db_util.h10
-rw-r--r--erts/emulator/beam/erl_trace.c6
-rw-r--r--erts/emulator/beam/global.h9
7 files changed, 296 insertions, 172 deletions
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 02f16899ae..5b74240cc3 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -2713,7 +2713,6 @@ BIF_RETTYPE ets_match_spec_run_r_3(BIF_ALIST_3)
Binary *mp;
Eterm res;
Uint32 dummy;
- Uint sz;
if (!(is_list(BIF_ARG_1) || BIF_ARG_1 == NIL) || !is_binary(BIF_ARG_2)) {
error:
@@ -2738,11 +2737,10 @@ BIF_RETTYPE ets_match_spec_run_r_3(BIF_ALIST_3)
BIF_TRAP3(bif_export[BIF_ets_match_spec_run_r_3],
BIF_P,lst,BIF_ARG_2,ret);
}
- res = db_prog_match(BIF_P, mp, CAR(list_val(lst)), NULL, NULL, 0, &dummy);
+ res = db_prog_match(BIF_P, mp, CAR(list_val(lst)), NULL, NULL, 0,
+ ERTS_PAM_COPY_RESULT, &dummy);
if (is_value(res)) {
- sz = size_object(res);
- hp = HAlloc(BIF_P, sz + 2);
- res = copy_struct(res, sz, &hp, &MSO(BIF_P));
+ hp = HAlloc(BIF_P, 2);
ret = CONS(hp,res,ret);
/*hp += 2;*/
}
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index 035aefed0c..9ef990cc4f 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1998-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1998-2011. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -1303,8 +1303,8 @@ static int db_select_continue_hash(Process *p,
}
for(;;) {
if (current->hvalue != INVALID_HASH &&
- (match_res = db_prog_match_and_copy(&tb->common, p, mp, all_objects,
- &current->dbterm, &hp, 2),
+ (match_res = db_match_dbterm(&tb->common, p, mp, all_objects,
+ &current->dbterm, &hp, 2),
is_value(match_res))) {
match_list = CONS(hp, match_res, match_list);
@@ -1468,8 +1468,8 @@ static int db_select_chunk_hash(Process *p, DbTable *tbl,
for(;;) {
if (current != NULL) {
if (current->hvalue != INVALID_HASH) {
- match_res = db_prog_match_and_copy(&tb->common, p, mpi.mp, 0,
- &current->dbterm, &hp, 2);
+ match_res = db_match_dbterm(&tb->common, p, mpi.mp, 0,
+ &current->dbterm, &hp, 2);
if (is_value(match_res)) {
match_list = CONS(hp, match_res, match_list);
++got;
@@ -1634,8 +1634,8 @@ static int db_select_count_hash(Process *p,
for(;;) {
if (current != NULL) {
if (current->hvalue != INVALID_HASH) {
- if (db_prog_match_and_copy(&tb->common, p, mpi.mp, 0,
- &current->dbterm, NULL,0) == am_true) {
+ if (db_match_dbterm(&tb->common, p, mpi.mp, 0,
+ &current->dbterm, NULL,0) == am_true) {
++got;
}
--num_left;
@@ -1783,8 +1783,8 @@ static int db_select_delete_hash(Process *p,
}
else {
int did_erase = 0;
- if (db_prog_match_and_copy(&tb->common, p, mpi.mp, 0,
- &(*current)->dbterm, NULL, 0) == am_true) {
+ if (db_match_dbterm(&tb->common, p, mpi.mp, 0,
+ &(*current)->dbterm, NULL, 0) == am_true) {
if (NFIXED(tb) > fixated_by_me) { /* fixated by others? */
if (slot_ix != last_pseudo_delete) {
add_fixed_deletion(tb, slot_ix);
@@ -1894,8 +1894,8 @@ static int db_select_delete_continue_hash(Process *p,
}
else {
int did_erase = 0;
- if (db_prog_match_and_copy(&tb->common, p, mp, 0,
- &(*current)->dbterm, NULL, 0) == am_true) {
+ if (db_match_dbterm(&tb->common, p, mp, 0,
+ &(*current)->dbterm, NULL, 0) == am_true) {
if (NFIXED(tb) > fixated_by_me) { /* fixated by others? */
if (slot_ix != last_pseudo_delete) {
add_fixed_deletion(tb, slot_ix);
@@ -1994,8 +1994,8 @@ static int db_select_count_continue_hash(Process *p,
current = current->next;
continue;
}
- if (db_prog_match_and_copy(&tb->common, p, mp, 0, &current->dbterm,
- NULL, 0) == am_true) {
+ if (db_match_dbterm(&tb->common, p, mp, 0, &current->dbterm,
+ NULL, 0) == am_true) {
++got;
}
--num_left;
@@ -2174,7 +2174,7 @@ static int analyze_pattern(DbTableHash *tb, Eterm pattern,
HashValue hval = NIL;
int num_heads = 0;
int i;
-
+
mpi->lists = mpi->dlists;
mpi->num_lists = 0;
mpi->key_given = 1;
diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c
index d4f02f9117..484a096249 100644
--- a/erts/emulator/beam/erl_db_tree.c
+++ b/erts/emulator/beam/erl_db_tree.c
@@ -2978,8 +2978,8 @@ static int doit_select(DbTableTree *tb, TreeDbTerm *this, void *ptr,
this->dbterm.tpl) > 0))) {
return 0;
}
- ret = db_prog_match_and_copy(&tb->common,sc->p,sc->mp,sc->all_objects,
- &this->dbterm, &hp, 2);
+ ret = db_match_dbterm(&tb->common,sc->p,sc->mp,sc->all_objects,
+ &this->dbterm, &hp, 2);
if (is_value(ret)) {
sc->accum = CONS(hp, ret, sc->accum);
}
@@ -3011,8 +3011,8 @@ static int doit_select_count(DbTableTree *tb, TreeDbTerm *this, void *ptr,
this->dbterm.tpl) > 0)) {
return 0;
}
- ret = db_prog_match_and_copy(&tb->common, sc->p, sc->mp, 0,
- &this->dbterm, NULL, 0);
+ ret = db_match_dbterm(&tb->common, sc->p, sc->mp, 0,
+ &this->dbterm, NULL, 0);
if (ret == am_true) {
++(sc->got);
}
@@ -3043,8 +3043,8 @@ static int doit_select_chunk(DbTableTree *tb, TreeDbTerm *this, void *ptr,
return 0;
}
- ret = db_prog_match_and_copy(&tb->common, sc->p, sc->mp, sc->all_objects,
- &this->dbterm, &hp, 2);
+ ret = db_match_dbterm(&tb->common, sc->p, sc->mp, sc->all_objects,
+ &this->dbterm, &hp, 2);
if (is_value(ret)) {
++(sc->got);
sc->accum = CONS(hp, ret, sc->accum);
@@ -3080,8 +3080,8 @@ static int doit_select_delete(DbTableTree *tb, TreeDbTerm *this, void *ptr,
GETKEY_WITH_POS(sc->keypos, this->dbterm.tpl),
this->dbterm.tpl) > 0)
return 0;
- ret = db_prog_match_and_copy(&tb->common, sc->p, sc->mp, 0,
- &this->dbterm, NULL, 0);
+ ret = db_match_dbterm(&tb->common, sc->p, sc->mp, 0,
+ &this->dbterm, NULL, 0);
if (ret == am_true) {
key = GETKEY(sc->tb, this->dbterm.tpl);
linkout_tree(sc->tb, key, this->dbterm.tpl);
diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c
index 49d3f9ffd1..2b7e0bcac3 100644
--- a/erts/emulator/beam/erl_db_util.c
+++ b/erts/emulator/beam/erl_db_util.c
@@ -229,6 +229,11 @@ typedef enum {
matchCall2,
matchCall3,
matchPushV,
+#if HALFWORD_HEAP
+ matchPushVGuard, /* First guard-only variable reference */
+#endif
+ matchPushVResult, /* First variable reference in result, or (if HALFWORD)
+ in guard if also referenced in result */
matchPushExpr, /* Push the whole expression we're matching ('$_') */
matchPushArrayAsList, /* Only when parameter is an Array and
not an erlang term (DCOMP_TRACE) */
@@ -292,11 +297,19 @@ DMC_DECLARE_STACK_TYPE(unsigned);
** Data about the heap during compilation
*/
+typedef struct DMCVariable {
+ int is_bound;
+ int is_in_body;
+#if HALFWORD_HEAP
+ int first_guard_label; /* to maybe change from PushVGuard to PushVResult */
+#endif
+} DMCVariable;
+
typedef struct DMCHeap {
int size;
- unsigned def[DMC_DEFAULT_SIZE];
- unsigned *data;
- int used;
+ DMCVariable vars_def[DMC_DEFAULT_SIZE];
+ DMCVariable* vars;
+ int vars_used;
} DMCHeap;
/*
@@ -346,9 +359,22 @@ typedef struct dmc_context {
#define ERTS_DEFAULT_MS_HEAP_SIZE 128
+/* Runtime info about a $-variable
+*/
+typedef struct MatchVariable {
+ Eterm term;
+#ifdef DEBUG
+ Process* proc;
+ Eterm* base;
+#endif
+} MatchVariable;
+
typedef struct {
Process process;
- Eterm *heap;
+ union {
+ Eterm* heap;
+ MatchVariable* variables; /* first on "heap" */
+ }u;
Eterm default_heap[ERTS_DEFAULT_MS_HEAP_SIZE];
} ErtsMatchPseudoProcess;
@@ -371,10 +397,10 @@ cleanup_match_pseudo_process(ErtsMatchPseudoProcess *mpsp, int keep_heap)
}
#endif
if (!keep_heap) {
- if (mpsp->heap != &mpsp->default_heap[0]) {
+ if (mpsp->u.heap != mpsp->default_heap) {
/* Have to be done *after* call to erts_cleanup_empty_process() */
- erts_free(ERTS_ALC_T_DB_MS_RUN_HEAP, (void *) mpsp->heap);
- mpsp->heap = &mpsp->default_heap[0];
+ erts_free(ERTS_ALC_T_DB_MS_RUN_HEAP, (void *) mpsp->u.heap);
+ mpsp->u.heap = mpsp->default_heap;
}
#ifdef DEBUG
else {
@@ -398,7 +424,7 @@ create_match_pseudo_process(void)
mpsp = (ErtsMatchPseudoProcess *)erts_alloc(ERTS_ALC_T_DB_MS_PSDO_PROC,
sizeof(ErtsMatchPseudoProcess));
erts_init_empty_process(&mpsp->process);
- mpsp->heap = &mpsp->default_heap[0];
+ mpsp->u.heap = mpsp->default_heap;
return mpsp;
}
@@ -422,12 +448,11 @@ get_match_pseudo_process(Process *c_p, Uint heap_size)
mpsp = match_pseudo_process;
cleanup_match_pseudo_process(mpsp, 0);
#endif
- if (heap_size > ERTS_DEFAULT_MS_HEAP_SIZE) {
- mpsp->heap = (Eterm *) erts_alloc(ERTS_ALC_T_DB_MS_RUN_HEAP,
- heap_size*sizeof(Uint));
+ if (heap_size > ERTS_DEFAULT_MS_HEAP_SIZE*sizeof(Eterm)) {
+ mpsp->u.heap = (Eterm*) erts_alloc(ERTS_ALC_T_DB_MS_RUN_HEAP, heap_size);
}
else {
- ASSERT(mpsp->heap == &mpsp->default_heap[0]);
+ ASSERT(mpsp->u.heap == mpsp->default_heap);
}
return mpsp;
}
@@ -855,7 +880,7 @@ static DMCRet dmc_one_term(DMCContext *context,
static int test_disassemble_next = 0;
void db_match_dis(Binary *prog);
#define TRACE erts_fprintf(stderr,"Trace: %s:%d\n",__FILE__,__LINE__)
-#define FENCE_PATTERN_SIZE 1
+#define FENCE_PATTERN_SIZE (1*sizeof(Uint))
#define FENCE_PATTERN 0xDEADBEEFUL
#else
#define TRACE /* Nothing */
@@ -1163,14 +1188,14 @@ done:
}
Eterm erts_match_set_run(Process *p, Binary *mpsp,
- Eterm *args, int num_args,
+ Eterm *args, int num_args,
+ enum erts_pam_run_flags in_flags,
Uint32 *return_flags)
{
Eterm ret;
- ret = db_prog_match(p, mpsp,
- NIL, NULL, args,
- num_args, return_flags);
+ ret = db_prog_match(p, mpsp, NIL, NULL, args, num_args,
+ in_flags, return_flags);
#if defined(HARDDEBUG)
if (is_non_value(ret)) {
erts_fprintf(stderr, "Failed\n");
@@ -1194,7 +1219,9 @@ static Eterm erts_match_set_run_ets(Process *p, Binary *mpsp,
{
Eterm ret;
- ret = db_prog_match(p, mpsp, args, NULL, NULL, num_args, return_flags);
+ ret = db_prog_match(p, mpsp, args, NULL, NULL, num_args,
+ ERTS_PAM_CONTIGUOUS_TUPLE | ERTS_PAM_COPY_RESULT,
+ return_flags);
#if defined(HARDDEBUG)
if (is_non_value(ret)) {
erts_fprintf(stderr, "Failed\n");
@@ -1280,19 +1307,19 @@ Binary *db_match_compile(Eterm *matchexpr,
context.cflags = flags;
heap.size = DMC_DEFAULT_SIZE;
- heap.data = heap.def;
+ heap.vars = heap.vars_def;
/*
** Compile the match expression
*/
restart:
- heap.used = 0;
+ heap.vars_used = 0;
max_eheap_need = 0;
for (context.current_match = 0;
context.current_match < num_progs;
++context.current_match) { /* This loop is long,
too long */
- memset(heap.data, 0, heap.size * sizeof(*heap.data));
+ memset(heap.vars, 0, heap.size * sizeof(*heap.vars));
t = context.matchexpr[context.current_match];
context.stack_used = 0;
context.eheap_need = 0;
@@ -1506,16 +1533,14 @@ restart:
ret->saved_program_buf = NULL;
ret->saved_program = NIL;
ret->term_save = context.save;
- ret->num_bindings = heap.used;
+ ret->num_bindings = heap.vars_used;
ret->single_variable = context.special;
sys_memcpy(ret->text, DMC_STACK_DATA(text),
DMC_STACK_NUM(text) * sizeof(UWord));
- ret->heap_size = ((heap.used * sizeof(Eterm)) +
- (max_eheap_need * sizeof(Eterm)) +
- (context.stack_need * sizeof(Eterm *)) +
- (3 * (FENCE_PATTERN_SIZE * sizeof(Eterm *))));
- ret->eheap_offset = heap.used + FENCE_PATTERN_SIZE;
- ret->stack_offset = ret->eheap_offset + max_eheap_need + FENCE_PATTERN_SIZE;
+ ret->eheap_offset = heap.vars_used*sizeof(MatchVariable) + FENCE_PATTERN_SIZE;
+ ret->stack_offset = ret->eheap_offset + max_eheap_need*sizeof(Eterm) + FENCE_PATTERN_SIZE;
+ ret->heap_size = ret->stack_offset + context.stack_need * sizeof(Eterm*) + FENCE_PATTERN_SIZE;
+
#ifdef DMC_DEBUG
ret->prog_end = ret->text + DMC_STACK_NUM(text);
#endif
@@ -1533,8 +1558,8 @@ error: /* Here is were we land when compilation failed. */
DMC_FREE(text);
if (context.copy != NULL)
free_message_buffer(context.copy);
- if (heap.data != heap.def)
- erts_free(ERTS_ALC_T_DB_MS_CMPL_HEAP, (void *) heap.data);
+ if (heap.vars != heap.vars_def)
+ erts_free(ERTS_ALC_T_DB_MS_CMPL_HEAP, (void *) heap.vars);
return bp;
}
@@ -1588,9 +1613,9 @@ static Eterm dpm_array_to_list(Process *psp, Eterm *arr, int arity)
return ret;
}
-void heap_consistency_check(Process*); // SVERK
+//void heap_consistency_check(Process*); // SVERK
-/************************
+#if HALFWORD_HEAP
struct heap_checkpoint_t
{
Process *p;
@@ -1627,19 +1652,32 @@ static void heap_checkpoint_revert(struct heap_checkpoint_t* hcp)
if (MBUF(hcp->p) != hcp->mbuf) {
ErlHeapFragment* hf = MBUF(hcp->p);
ASSERT(hf != NULL);
- while (hf->next != hcp->mbuf) {
- hf = hf->next;
+ if (hcp->mbuf) {
+ while (hf->next != hcp->mbuf) {
+ hf = hf->next;
+ }
+ hf->next = NULL;
}
- hf->next = NULL;
free_message_buffer(MBUF(hcp->p));
MBUF(hcp->p) = hcp->mbuf;
}
if (hcp->mbuf != NULL && hcp->mbuf->used_size != hcp->used_size) {
- abort();
+ hcp->mbuf->used_size = hcp->used_size;
}
HEAP_TOP(hcp->p) = hcp->htop;
}
-*******************/
+#endif /* HALFWORD_HEAP */
+
+static ERTS_INLINE Eterm copy_object_rel(Process* p, Eterm term, Eterm* base)
+{
+ if (!is_immed(term)) {
+ Uint sz = size_object_rel(term, base);
+ Eterm* top = HAlloc(p, sz);
+ return copy_struct_rel(term, sz, &top, &MSO(p), base, NULL);
+ }
+ return term;
+}
+
/*
** Execution of the match program, this is Pam.
@@ -1651,6 +1689,7 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
Eterm term, Eterm* base,
Eterm *termp,
int arity,
+ enum erts_pam_run_flags in_flags,
Uint32 *return_flags)
{
MatchProg *prog = Binary2MatchProg(bprog);
@@ -1659,7 +1698,7 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
Eterm t;
Eterm **sp;
Eterm *esp;
- Eterm *hp;
+ MatchVariable* variables;
BeamInstr *cp;
UWord *pc = prog->text;
Eterm *ehp;
@@ -1670,17 +1709,15 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
ErtsMatchPseudoProcess *mpsp;
Process *psp;
Process* build_proc;
- Process* variable_proc;
-#if HALFWORD_HEAP
- Eterm* variable_base; /* base for $n-variables (hp[n]) */
-#endif
Process *tmpp;
Process *current_scheduled;
ErtsSchedulerData *esdp;
Eterm (*bif)(Process*, ...);
int fail_label;
int atomic_trace;
- int is_ets = 0; // SVERK ToDo!!!
+#if HALFWORD_HEAP
+ struct heap_checkpoint_t c_p_checkpoint = {};
+#endif
#ifdef DMC_DEBUG
Uint *heap_fence;
Uint *eheap_fence;
@@ -1688,6 +1725,13 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
Uint save_op;
#endif /* DMC_DEBUG */
+// if (base == NULL) {
+// erts_fprintf(stderr, "SVERK prog_match = %T\r\n", term);
+// } else {
+// erts_fprintf(stderr, "SVERK prog_match = REL-TERM\r\n");
+// }
+ ASSERT(base==NULL || HALFWORD_HEAP);
+
mpsp = get_match_pseudo_process(c_p, prog->heap_size);
psp = &mpsp->process;
@@ -1697,7 +1741,6 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
esdp = ERTS_GET_SCHEDULER_DATA_FROM_PROC(c_p);
ASSERT(esdp != NULL);
current_scheduled = esdp->current_process;
- esdp->current_process = psp;
/* SMP: psp->scheduler_data is set by get_match_pseudo_process */
atomic_trace = 0;
@@ -1720,9 +1763,9 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
#ifdef DMC_DEBUG
save_op = 0;
- heap_fence = (Uint *) mpsp->heap + prog->eheap_offset - 1;
- eheap_fence = (Uint *) mpsp->heap + prog->stack_offset - 1;
- stack_fence = (Uint *) mpsp->heap + prog->heap_size - 1;
+ heap_fence = (Eterm*)((char*) mpsp->u.heap + prog->eheap_offset) - 1;
+ eheap_fence = (Eterm*)((char*) mpsp->u.heap + prog->stack_offset) - 1;
+ stack_fence = (Eterm*)((char*) mpsp->u.heap + prog->heap_size) - 1;
*heap_fence = FENCE_PATTERN;
*eheap_fence = FENCE_PATTERN;
*stack_fence = FENCE_PATTERN;
@@ -1738,30 +1781,30 @@ Eterm db_prog_match(Process *c_p, Binary *bprog,
*return_flags = 0U;
- //heap_checkpoint_init(c_p, &heap_checkpoint);
-
- hp = mpsp->heap;
+ variables = mpsp->u.variables;
+#if HALFWORD_HEAP
+ c_p_checkpoint.p = NULL;
+#endif
restart:
ep = &term;
- esp = mpsp->heap + prog->stack_offset;
+ esp = (Eterm*)((char*)mpsp->u.heap + prog->stack_offset);
sp = (Eterm **) esp;
- ASSERT(hp == mpsp->heap); // SVERK
- //ehp = mpsp->heap + prog->eheap_offset;
+ //ehp = (char*)mpsp->u.heap + prog->eheap_offset;
ret = am_true;
do_catch = 0;
fail_label = -1;
build_proc = psp;
+ esdp->current_process = psp;
+ ASSERT_HALFWORD(!c_p_checkpoint.p);
- /* Clear all variables for matchPushV */
- for (i=prog->eheap_offset-(1+FENCE_PATTERN_SIZE); i>=0; i--) {
- hp[i] = NIL;
+#ifdef DEBUG
+ ASSERT(variables == mpsp->u.variables);
+ for (i=0; i<prog->num_bindings; i++) {
+ variables[i].term = THE_NON_VALUE;
+ variables[i].proc = NULL;
+ variables[i].base = base;
}
-#if HALFWORD_HEAP
- variable_base = base;
- variable_proc = NULL;
-#else
- variable_proc = build_proc;
#endif
for (;;) {
@@ -1796,10 +1839,9 @@ restart:
ep = termp;
break;
case matchArrayBind: /* When the array size is unknown. */
- ASSERT_HALFWORD(variable_base == NULL);
- ASSERT(build_proc == NULL);
+ ASSERT(termp);
n = *pc++;
- hp[n] = dpm_array_to_list(psp, termp, arity);
+ variables[n].term = dpm_array_to_list(psp, termp, arity);
break;
case matchTuple: /* *ep is a tuple of arity n */
if (!is_tuple_rel(*ep,base))
@@ -1836,13 +1878,12 @@ restart:
ep = *(--sp);
break;
case matchBind:
- ASSERT_HALFWORD(variable_base == base);
n = *pc++;
- hp[n] = *ep++;
+ variables[n].term = *ep++;
break;
case matchCmp:
n = *pc++;
- if (!eq_rel(hp[n], variable_base, *ep, base))
+ if (!eq_rel(variables[n].term, base, *ep, base))
FAIL();
++ep;
break;
@@ -1900,11 +1941,12 @@ restart:
++ep;
break;
/*
- * Here comes guard instructions
+ * Here comes guard & body instructions
*/
case matchPushC: /* Push constant */
- if (do_catch && !is_immed(*pc)) {
- *esp++ = copy_object(*pc++, build_proc);
+ if ((in_flags & ERTS_PAM_COPY_RESULT)
+ && do_catch && !is_immed(*pc)) {
+ *esp++ = copy_object(*pc++, c_p);
}
else {
*esp++ = *pc++;
@@ -1980,39 +2022,68 @@ restart:
esp -= 2;
esp[-1] = t;
break;
- case matchPushV:
+
+ #if HALFWORD_HEAP
+ case matchPushVGuard:
+ if (!base) goto case_matchPushV;
+ /* Build NULL-based copy on pseudo heap for easy disposal */
n = *pc++;
- if (variable_proc != build_proc && !is_immed(hp[n])) {
- ASSERT(build_proc);
- for (i=prog->eheap_offset-1; i>=0; i--) if (!is_immed(hp[i])) {
- Uint sz = size_object_rel(hp[i], variable_base);
- Eterm* top = HAlloc(build_proc, sz);
- hp[i] = copy_struct_rel(hp[i], sz, &top, &MSO(build_proc),
- variable_base, NULL);
- }
- #if HALFWORD_HEAP
- variable_base = NULL;
+ ASSERT(is_value(variables[n].term));
+ ASSERT(!variables[n].proc);
+ variables[n].term = copy_object_rel(psp, variables[n].term, base);
+ *esp++ = variables[n].term;
+ #ifdef DEBUG
+ variables[n].proc = psp;
+ variables[n].base = NULL;
#endif
- variable_proc = build_proc;
+ break;
+ #endif
+ case matchPushVResult:
+ if (!(in_flags & ERTS_PAM_COPY_RESULT)) goto case_matchPushV;
+
+ /* Build (NULL-based) copy on callers heap */
+ #if HALFWORD_HEAP
+ if (!do_catch && !c_p_checkpoint.p) {
+ heap_checkpoint_init(c_p, &c_p_checkpoint);
}
- *esp++ = hp[n];
+ #endif
+ n = *pc++;
+ ASSERT(is_value(variables[n].term));
+ ASSERT(!variables[n].proc);
+ variables[n].term = copy_object_rel(c_p, variables[n].term, base);
+ *esp++ = variables[n].term;
+ #ifdef DEBUG
+ variables[n].proc = c_p;
+ variables[n].base = NULL;
+ #endif
+ break;
+ case matchPushV:
+ case_matchPushV:
+ n = *pc++;
+ ASSERT(is_value(variables[n].term));
+ ASSERT(!variables[n].base);
+ *esp++ = variables[n].term;
break;
- case matchPushExpr: {
- Uint sz;
- Eterm* top;
- sz = size_object_rel(term, base);
- top = HAlloc(build_proc, sz);
- if (is_ets) {
- ASSERT(is_tuple_rel(term,base));
- *esp++ = copy_shallow_rel(tuple_val_rel(term,base), sz,
- &top, &MSO(build_proc), base);
+ case matchPushExpr:
+ if (in_flags & ERTS_PAM_COPY_RESULT) {
+ Uint sz;
+ Eterm* top;
+ sz = size_object_rel(term, base);
+ top = HAlloc(build_proc, sz);
+ if (in_flags & ERTS_PAM_CONTIGUOUS_TUPLE) {
+ ASSERT(is_tuple_rel(term,base));
+ *esp++ = copy_shallow_rel(tuple_val_rel(term,base), sz,
+ &top, &MSO(build_proc), base);
+ }
+ else {
+ *esp++ = copy_struct_rel(term, sz, &top, &MSO(build_proc),
+ base, NULL);
+ }
}
else {
- *esp++ = copy_struct_rel(term, sz, &top, &MSO(build_proc),
- base, NULL);
+ *esp = term;
}
break;
- }
case matchPushArrayAsList:
ASSERT_HALFWORD(base == NULL);
n = arity; /* Only happens when 'term' is an array */
@@ -2309,11 +2380,12 @@ restart:
}
}
break;
- case matchCatch:
- //heap_checkpoint_revert(&heap_checkpoint);
+ case matchCatch: /* Match success, now build result */
do_catch = 1;
- build_proc = c_p;
- esdp->current_process = build_proc;
+ if (in_flags & ERTS_PAM_COPY_RESULT) {
+ build_proc = c_p;
+ esdp->current_process = c_p;
+ }
break;
case matchHalt:
goto success;
@@ -2322,10 +2394,16 @@ restart:
}
}
fail:
- //heap_checkpoint_revert(&heap_checkpoint);
+#if HALFWORD_HEAP
+ if (c_p_checkpoint.p) {
+ /* Dispose garbage built by guards on caller heap */
+ heap_checkpoint_revert(&c_p_checkpoint);
+ c_p_checkpoint.p = NULL;
+ }
+#endif
*return_flags = 0U;
- if (fail_label >= 0) { /* We failed during a "TryMeElse",
- lets restart, with the next match
+ if (fail_label >= 0) { /* We failed during a "TryMeElse",
+ lets restart, with the next match
program */
pc = (prog->text) + fail_label;
cleanup_match_pseudo_process(mpsp, 1);
@@ -2369,7 +2447,8 @@ success:
/*
* Convert a match program to a "magic" binary to return up to erlang
*/
-Eterm db_make_mp_binary(Process *p, Binary *mp, Eterm **hpp) {
+Eterm db_make_mp_binary(Process *p, Binary *mp, Eterm **hpp)
+{
return erts_mk_magic_binary_term(hpp, &MSO(p), mp);
}
@@ -3153,7 +3232,7 @@ static DMCRet dmc_one_term(DMCContext *context,
** Ouch, big integer in match variable.
*/
Eterm *save_hp;
- ASSERT(heap->data == heap->def);
+ ASSERT(heap->vars == heap->vars_def);
sz = sz2 = sz3 = 0;
for (j = 0; j < context->num_match; ++j) {
sz += size_object(context->matchexpr[j]);
@@ -3191,24 +3270,23 @@ static DMCRet dmc_one_term(DMCContext *context,
may be atoms that changed */
context->matchexpr[j] = context->copy->mem[j];
}
- heap->data = erts_alloc(ERTS_ALC_T_DB_MS_CMPL_HEAP,
- heap->size*sizeof(unsigned));
- sys_memset(heap->data, 0,
- heap->size * sizeof(unsigned));
+ heap->vars = erts_alloc(ERTS_ALC_T_DB_MS_CMPL_HEAP,
+ heap->size*sizeof(DMCVariable));
+ sys_memset(heap->vars, 0, heap->size * sizeof(DMCVariable));
DMC_CLEAR(*stack);
/*DMC_PUSH(*stack,NIL);*/
DMC_CLEAR(*text);
return retRestart;
}
- if (heap->data[n]) { /* already bound ? */
+ if (heap->vars[n].is_bound) {
DMC_PUSH(*text,matchCmp);
DMC_PUSH(*text,n);
} else { /* Not bound, bind! */
- if (n >= heap->used)
- heap->used = n + 1;
+ if (n >= heap->vars_used)
+ heap->vars_used = n + 1;
DMC_PUSH(*text,matchBind);
DMC_PUSH(*text,n);
- heap->data[n] = 1;
+ heap->vars[n].is_bound = 1;
}
} else if (c == am_Underscore) {
DMC_PUSH(*text, matchSkip);
@@ -3515,6 +3593,41 @@ static DMCRet dmc_whole_expression(DMCContext *context,
return retOk;
}
+/* Figure out which PushV instruction to use.
+*/
+static void dmc_add_pushv_variant(DMCContext *context, DMCHeap *heap,
+ DMC_STACK_TYPE(UWord) *text, Uint n)
+{
+ DMCVariable* v = &heap->vars[n];
+ MatchOps instr = matchPushV;
+
+ ASSERT(n < heap->vars_used && v->is_bound);
+ if (context->is_guard) {
+ #if HALFWORD_HEAP
+ if (!v->first_guard_label) {
+ v->first_guard_label = DMC_STACK_NUM(*text);
+ ASSERT(v->first_guard_label);
+ instr = matchPushVGuard; /* may be changed to PushVResult below */
+ }
+ #endif
+ }
+ else { /* body */
+ #if HALFWORD_HEAP
+ if (v->first_guard_label) {
+ /* Avoid double-copy, copy to result heap at first encounter in guard */
+ DMC_POKE(*text, v->first_guard_label, matchPushVResult);
+ v->is_in_body = 1;
+ }
+ #endif
+ if (!v->is_in_body) {
+ instr = matchPushVResult;
+ v->is_in_body = 1;
+ }
+ }
+ DMC_PUSH(*text, instr);
+ DMC_PUSH(*text, n);
+}
+
static DMCRet dmc_variable(DMCContext *context,
DMCHeap *heap,
DMC_STACK_TYPE(UWord) *text,
@@ -3522,13 +3635,13 @@ static DMCRet dmc_variable(DMCContext *context,
int *constant)
{
Uint n = db_is_variable(t);
- ASSERT(n >= 0);
- if (n >= heap->used)
- RETURN_VAR_ERROR("Variable $%d is unbound.", n, context, *constant);
- if (heap->data[n] == 0U)
+
+ if (n >= heap->vars_used || !heap->vars[n].is_bound) {
RETURN_VAR_ERROR("Variable $%d is unbound.", n, context, *constant);
- DMC_PUSH(*text, matchPushV);
- DMC_PUSH(*text, n);
+ }
+
+ dmc_add_pushv_variant(context, heap, text, n);
+
++context->stack_used;
if (context->stack_used > context->stack_need)
context->stack_need = context->stack_used;
@@ -3547,10 +3660,9 @@ static DMCRet dmc_all_bindings(DMCContext *context,
DMC_PUSH(*text, matchPushC);
DMC_PUSH(*text, NIL);
- for (i = heap->used - 1; i >= 0; --i) {
- if (heap->data[i]) {
- DMC_PUSH(*text, matchPushV);
- DMC_PUSH(*text, i);
+ for (i = heap->vars_used - 1; i >= 0; --i) {
+ if (heap->vars[i].is_bound) {
+ dmc_add_pushv_variant(context, heap, text, i);
DMC_PUSH(*text, matchConsB);
heap_used += 2;
}
@@ -4859,7 +4971,8 @@ static Eterm match_spec_test(Process *p, Eterm against, Eterm spec, int trace)
}
save_cp = p->cp;
p->cp = NULL;
- res = erts_match_set_run(p, mps, arr, n, &ret_flags);
+ res = erts_match_set_run(p, mps, arr, n,
+ ERTS_PAM_COPY_RESULT, &ret_flags);
p->cp = save_cp;
} else {
n = 0;
@@ -4872,11 +4985,10 @@ static Eterm match_spec_test(Process *p, Eterm against, Eterm spec, int trace)
if (is_non_value(res)) {
res = am_false;
}
- sz = size_object(res);
+ sz = 0;
if (ret_flags & MATCH_SET_EXCEPTION_TRACE) sz += 2;
if (ret_flags & MATCH_SET_RETURN_TRACE) sz += 2;
hp = HAlloc(p, 5 + sz);
- res = copy_struct(res, sz, &hp, &MSO(p));
flg = NIL;
if (ret_flags & MATCH_SET_EXCEPTION_TRACE) {
flg = CONS(hp, am_exception_trace, flg);
@@ -4931,7 +5043,7 @@ void db_free_tmp_uncompressed(DbTerm* obj)
erts_free(ERTS_ALC_T_TMP, obj);
}
-Eterm db_prog_match_and_copy(DbTableCommon* tb, Process* c_p, Binary* bprog,
+Eterm db_match_dbterm(DbTableCommon* tb, Process* c_p, Binary* bprog,
int all, DbTerm* obj, Eterm** hpp, Uint extra)
{
Uint32 dummy;
@@ -4942,22 +5054,13 @@ Eterm db_prog_match_and_copy(DbTableCommon* tb, Process* c_p, Binary* bprog,
obj = db_alloc_tmp_uncompressed(tb, obj);
base = NULL;
}
- else base = obj->tpl;
+ else base = HALFWORD_HEAP ? obj->tpl : NULL;
- res = db_prog_match(c_p, bprog, make_tuple_rel(obj->tpl,base), base,
- NULL, 0, &dummy);
+ res = db_prog_match(c_p, bprog, make_tuple_rel(obj->tpl,base), base, NULL, 0,
+ ERTS_PAM_COPY_RESULT|ERTS_PAM_CONTIGUOUS_TUPLE, &dummy);
if (is_value(res) && hpp!=NULL) {
*hpp = HAlloc(c_p, extra);
-// if (all) {
-// *hpp = HAlloc(c_p, obj->size + extra);
-// res = copy_shallow_rel(obj->tpl, obj->size, hpp, &MSO(c_p), base);
-// }
-// else {
-// Uint sz = size_object(res);
-// *hpp = HAlloc(c_p, sz + extra);
-// res = copy_struct(res, sz, hpp, &MSO(c_p));
-// }
}
if (tb->compress) {
@@ -5187,6 +5290,18 @@ void db_match_dis(Binary *bp)
++t;
erts_printf("PushV\t%bpu\n", n);
break;
+ #if HALFWORD_HEAP
+ case matchPushVGuard:
+ n = (Uint) *++t;
+ ++t;
+ erts_printf("PushVGuard\t%bpu\n", n);
+ break;
+ #endif
+ case matchPushVResult:
+ n = (Uint) *++t;
+ ++t;
+ erts_printf("PushVResult\t%bpu\n", n);
+ break;
case matchTrue:
++t;
erts_printf("True\n");
diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h
index bbf1e29f72..4cb5a457ef 100644
--- a/erts/emulator/beam/erl_db_util.h
+++ b/erts/emulator/beam/erl_db_util.h
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1998-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1998-2011. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -424,12 +424,16 @@ Binary *db_match_compile(Eterm *matchexpr, Eterm *guards,
Eterm *body, int num_matches,
Uint flags,
DMCErrInfo *err_info);
-Eterm db_prog_match_and_copy(DbTableCommon* tb, Process* c_p, Binary* bprog,
- int all, DbTerm* obj, Eterm** hpp, Uint extra);
/* Returns newly allocated MatchProg binary with refc == 0*/
+
+Eterm db_match_dbterm(DbTableCommon* tb, Process* c_p, Binary* bprog,
+ int all, DbTerm* obj, Eterm** hpp, Uint extra);
+
Eterm db_prog_match(Process *p, Binary *prog, Eterm term, Eterm* base,
Eterm *termp, int arity,
+ enum erts_pam_run_flags in_flags,
Uint32 *return_flags /* Zeroed on enter */);
+
/* returns DB_ERROR_NONE if matches, 1 if not matches and some db error on
error. */
DMCErrInfo *db_new_dmc_err_info(void);
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index 3043bb1e8c..c0397ca6c3 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1999-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1999-2011. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -1668,7 +1668,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
return_flags = 0;
if (match_spec) {
pam_result = erts_match_set_run(p, match_spec, args, arity,
- &return_flags);
+ ERTS_PAM_TMP_RESULT, &return_flags);
if (is_non_value(pam_result)) {
erts_match_set_release_result(p);
#if !HEAP_ON_C_STACK
@@ -1815,7 +1815,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
return_flags = 0;
if (match_spec) {
pam_result = erts_match_set_run(p, match_spec, args, arity,
- &return_flags);
+ ERTS_PAM_TMP_RESULT, &return_flags);
if (is_non_value(pam_result)) {
erts_match_set_release_result(p);
UnUseTmpHeap(ERL_SUB_BIN_SIZE,p);
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index b59f26b2bf..bd540eaaa6 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2011. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -1757,8 +1757,15 @@ do { \
extern Binary *erts_match_set_compile(Process *p, Eterm matchexpr);
Eterm erts_match_set_lint(Process *p, Eterm matchexpr);
extern void erts_match_set_release_result(Process* p);
+
+enum erts_pam_run_flags {
+ ERTS_PAM_TMP_RESULT=0,
+ ERTS_PAM_COPY_RESULT=1,
+ ERTS_PAM_CONTIGUOUS_TUPLE=2
+};
extern Eterm erts_match_set_run(Process *p, Binary *mpsp,
Eterm *args, int num_args,
+ enum erts_pam_run_flags in_flags,
Uint32 *return_flags);
extern Eterm erts_match_set_get_source(Binary *mpsp);
extern void erts_match_prog_foreach_offheap(Binary *b,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 16:27:19 +0000