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-rw-r--r--erts/emulator/beam/atom.names1
-rw-r--r--erts/emulator/beam/erl_alloc.types1
-rw-r--r--erts/emulator/beam/erl_gc.c17
-rw-r--r--erts/emulator/beam/erl_init.c1
-rw-r--r--erts/emulator/beam/erl_process.c7
-rw-r--r--erts/emulator/beam/erl_process.h11
-rw-r--r--erts/emulator/beam/erl_zlib.c42
-rw-r--r--erts/emulator/beam/erl_zlib.h8
-rw-r--r--erts/emulator/beam/external.c625
-rwxr-xr-xerts/emulator/beam/global.h153
-rw-r--r--erts/emulator/beam/utils.c12
11 files changed, 765 insertions, 113 deletions
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index 3ee9eb0f88..eba1d0fa23 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -534,6 +534,7 @@ atom system_version
atom system_architecture
atom SYSTEM='SYSTEM'
atom table
+atom term_to_binary_trap
atom this
atom thread_pool_size
atom threads
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index 7e3b3c707d..bb5eba80be 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -150,6 +150,7 @@ type LINK_LH STANDARD PROCESSES link_lh
type SUSPEND_MON STANDARD PROCESSES suspend_monitor
type PEND_SUSPEND SHORT_LIVED PROCESSES pending_suspend
type PROC_LIST SHORT_LIVED PROCESSES proc_list
+type EXTRA_ROOT SHORT_LIVED PROCESSES extra_root
type FUN_ENTRY LONG_LIVED CODE fun_entry
type ATOM_TXT LONG_LIVED ATOM atom_text
type BEAM_REGISTER EHEAP PROCESSES beam_register
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index 0d12e658d9..8ba94d89e9 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -1964,6 +1964,17 @@ setup_rootset(Process *p, Eterm *objv, int nobj, Rootset *rootset)
++n;
}
+ /*
+ * A trapping BIF can add to rootset by setting the extra_root
+ * in the process_structure.
+ */
+ if (p->extra_root != NULL) {
+ roots[n].v = p->extra_root->objv;
+ roots[n].sz = p->extra_root->sz;
+ ++n;
+ }
+
+
ASSERT((is_nil(p->seq_trace_token) ||
is_tuple(follow_moved(p->seq_trace_token)) ||
is_atom(p->seq_trace_token)));
@@ -2541,6 +2552,12 @@ offset_one_rootset(Process *p, Sint offs, char* area, Uint area_size,
p->dictionary->used,
offs, area, area_size);
}
+ if (p->extra_root != NULL) {
+ offset_heap_ptr(p->extra_root->objv,
+ p->extra_root->sz,
+ offs, area, area_size);
+ }
+
offset_heap_ptr(&p->fvalue, 1, offs, area, area_size);
offset_heap_ptr(&p->ftrace, 1, offs, area, area_size);
offset_heap_ptr(&p->seq_trace_token, 1, offs, area, area_size);
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index b3a3c3d403..2fb73aed96 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -340,6 +340,7 @@ erl_init(int ncpu,
erts_init_bif_binary();
erts_init_bif_re();
erts_init_unicode(); /* after RE to get access to PCRE unicode */
+ erts_init_external();
erts_delay_trap = erts_export_put(am_erlang, am_delay_trap, 2);
erts_late_init_process();
#if HAVE_ERTS_MSEG
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 3d161f2aa0..64b4c25ba0 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -7513,6 +7513,7 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->htop = p->heap;
p->heap_sz = sz;
p->catches = 0;
+ p->extra_root = NULL;
p->bin_vheap_sz = p->min_vheap_size;
p->bin_old_vheap_sz = p->min_vheap_size;
@@ -8945,6 +8946,12 @@ erts_continue_exit_process(Process *p)
if (pbt)
erts_free(ERTS_ALC_T_BPD, (void *) pbt);
+ if (p->extra_root != NULL) {
+ (p->extra_root->cleanup)(p->extra_root); /* Should deallocate
+ whole structure */
+ p->extra_root = NULL;
+ }
+
delete_process(p);
#ifdef ERTS_SMP
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 3c1edfad7a..973db65490 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -699,6 +699,14 @@ struct ErtsPendingSuspend_ {
#endif
+
+typedef struct ErlExtraRootSet_ ErlExtraRootSet;
+struct ErlExtraRootSet_ {
+ Eterm *objv;
+ Uint sz;
+ void (*cleanup)(ErlExtraRootSet *);
+};
+
/* Defines to ease the change of memory architecture */
# define HEAP_START(p) (p)->heap
# define HEAP_TOP(p) (p)->htop
@@ -792,6 +800,8 @@ struct process {
ErlMessageQueue msg; /* Message queue */
+ ErlExtraRootSet *extra_root; /* Used by trapping BIF's */
+
union {
ErtsBifTimer *bif_timers; /* Bif timers aiming at this process */
void *terminate;
@@ -1976,6 +1986,7 @@ erts_sched_poke(ErtsSchedulerSleepInfo *ssi)
}
}
+
#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
#endif /* #ifdef ERTS_SMP */
diff --git a/erts/emulator/beam/erl_zlib.c b/erts/emulator/beam/erl_zlib.c
index f73d48b6c2..c8f29a7ce4 100644
--- a/erts/emulator/beam/erl_zlib.c
+++ b/erts/emulator/beam/erl_zlib.c
@@ -44,6 +44,48 @@ void erl_zlib_zfree_callback (voidpf opaque, voidpf ptr)
erts_free(ERTS_ALC_T_ZLIB, ptr);
}
+/*
+ * Initialize a z_stream with a source, to later *chunk* data into a destination
+ * Returns Z_OK or Error.
+ */
+int ZEXPORT erl_zlib_deflate_start(z_stream *streamp, const Bytef* source,
+ uLong sourceLen, int level)
+{
+ streamp->next_in = (Bytef*)source;
+ streamp->avail_in = (uInt)sourceLen;
+ streamp->total_out = streamp->avail_out = 0;
+ streamp->next_out = NULL;
+ erl_zlib_alloc_init(streamp);
+ return deflateInit(streamp, level);
+}
+/*
+ * Deflate a chunk, The destination length is the limit.
+ * Returns Z_OK if more to process, Z_STREAM_END if we are done.
+ */
+int ZEXPORT erl_zlib_deflate_chunk(z_stream *streamp, Bytef* dest, uLongf* destLen)
+{
+ int err;
+ uLongf last_tot = streamp->total_out;
+
+ streamp->next_out = dest;
+ streamp->avail_out = (uInt)*destLen;
+
+ if ((uLong)streamp->avail_out != *destLen) return Z_BUF_ERROR;
+
+ err = deflate(streamp, Z_FINISH);
+ *destLen = streamp->total_out - last_tot;
+ return err;
+}
+
+
+/*
+ * When we are done, free up the deflate structure
+ * Retyurns Z_OK or Error
+ */
+int ZEXPORT erl_zlib_deflate_finish(z_stream *streamp)
+{
+ return deflateEnd(streamp);
+}
int ZEXPORT erl_zlib_compress2 (Bytef* dest, uLongf* destLen,
const Bytef* source, uLong sourceLen,
diff --git a/erts/emulator/beam/erl_zlib.h b/erts/emulator/beam/erl_zlib.h
index 9054a5e428..eb2e14f585 100644
--- a/erts/emulator/beam/erl_zlib.h
+++ b/erts/emulator/beam/erl_zlib.h
@@ -31,6 +31,14 @@
(s)->zfree = erl_zlib_zfree_callback; \
} while (0)
+/*
+ * Chunked interface, used by term_to_binary among others.
+ */
+int ZEXPORT erl_zlib_deflate_start(z_stream *streamp, const Bytef* source,
+ uLong sourceLen, int level);
+int ZEXPORT erl_zlib_deflate_chunk(z_stream *streamp, Bytef* dest, uLongf* destLen);
+int ZEXPORT erl_zlib_deflate_finish(z_stream *streamp);
+
/* Use instead of compress
*/
#define erl_zlib_compress(dest,destLen,source,sourceLen) \
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c
index 8420cfae24..45025ad631 100644
--- a/erts/emulator/beam/external.c
+++ b/erts/emulator/beam/external.c
@@ -81,7 +81,11 @@
*
*/
+static Export term_to_binary_trap_export;
+
static byte* enc_term(ErtsAtomCacheMap *, Eterm, byte*, Uint32, struct erl_off_heap_header** off_heap);
+static int enc_term_int(Process *p,ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
+ struct erl_off_heap_header** off_heap, Sint *reds, byte **res);
static Uint is_external_string(Eterm obj, int* p_is_string);
static byte* enc_atom(ErtsAtomCacheMap *, Eterm, byte*, Uint32);
static byte* enc_pid(ErtsAtomCacheMap *, Eterm, byte*, Uint32);
@@ -89,9 +93,31 @@ static byte* dec_term(ErtsDistExternal *, Eterm**, byte*, ErlOffHeap*, Eterm*);
static byte* dec_atom(ErtsDistExternal *, byte*, Eterm*);
static byte* dec_pid(ErtsDistExternal *, Eterm**, byte*, ErlOffHeap*, Eterm*);
static Sint decoded_size(byte *ep, byte* endp, int internal_tags);
+static BIF_RETTYPE term_to_binary_trap_1(BIF_ALIST_1);
+static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint flags,
+ Binary *context_b);
static Uint encode_size_struct2(ErtsAtomCacheMap *, Eterm, unsigned);
+static int encode_size_struct_int(Process *p, ErtsAtomCacheMap *acmp, Eterm obj,
+ unsigned dflags, Sint *reds, Uint *res);
+
+void erts_init_external(void) {
+#if 1 /* In R16 */
+ erts_init_trap_export(&term_to_binary_trap_export,
+ am_erlang, am_term_to_binary_trap, 1,
+ &term_to_binary_trap_1);
+#else
+ sys_memset((void *) &term_to_binary_trap_export, 0, sizeof(Export));
+ term_to_binary_trap_export.address = &term_to_binary_trap_export.code[3];
+ term_to_binary_trap_export.code[0] = am_erlang;
+ term_to_binary_trap_export.code[1] = am_term_to_binary_trap;
+ term_to_binary_trap_export.code[2] = 1;
+ term_to_binary_trap_export.code[3] = (BeamInstr) em_apply_bif;
+ term_to_binary_trap_export.code[4] = (BeamInstr) &term_to_binary_trap_1;
+#endif
+ return;
+}
#define ERTS_MAX_INTERNAL_ATOM_CACHE_ENTRIES 255
@@ -1009,10 +1035,28 @@ BIF_RETTYPE erts_debug_dist_ext_to_term_2(BIF_ALIST_2)
BIF_ERROR(BIF_P, BADARG);
}
-
+static BIF_RETTYPE term_to_binary_trap_1(BIF_ALIST_1)
+{
+ Eterm *tp = tuple_val(BIF_ARG_1);
+ Eterm Term = tp[1];
+ Eterm bt = tp[2];
+ Binary *bin = ((ProcBin *) binary_val(bt))->val;
+ Eterm res = erts_term_to_binary_int(BIF_P, Term, 0, 0,bin);
+ if (is_tuple(res)) {
+ BIF_TRAP1(&term_to_binary_trap_export,BIF_P,res);
+ } else {
+ BIF_RET(res);
+ }
+}
+
BIF_RETTYPE term_to_binary_1(BIF_ALIST_1)
{
- return erts_term_to_binary(BIF_P, BIF_ARG_1, 0, TERM_TO_BINARY_DFLAGS);
+ Eterm res = erts_term_to_binary_int(BIF_P, BIF_ARG_1, 0, TERM_TO_BINARY_DFLAGS, NULL);
+ if (is_tuple(res)) {
+ BIF_TRAP1(&term_to_binary_trap_export,BIF_P,res);
+ } else {
+ BIF_RET(res);
+ }
}
BIF_RETTYPE term_to_binary_2(BIF_ALIST_2)
@@ -1022,6 +1066,8 @@ BIF_RETTYPE term_to_binary_2(BIF_ALIST_2)
Eterm Flags = BIF_ARG_2;
int level = 0;
Uint flags = TERM_TO_BINARY_DFLAGS;
+ Eterm res;
+ Binary *bin = NULL;
while (is_list(Flags)) {
Eterm arg = CAR(list_val(Flags));
@@ -1058,7 +1104,12 @@ BIF_RETTYPE term_to_binary_2(BIF_ALIST_2)
goto error;
}
- return erts_term_to_binary(p, Term, level, flags);
+ res = erts_term_to_binary_int(p, Term, level, flags, bin);
+ if (is_tuple(res)) {
+ BIF_TRAP1(&term_to_binary_trap_export,BIF_P,res);
+ } else {
+ BIF_RET(res);
+ }
}
static uLongf binary2term_uncomp_size(byte* data, Sint size)
@@ -1335,16 +1386,13 @@ external_size_2(BIF_ALIST_2)
}
}
-Eterm
-erts_term_to_binary(Process* p, Eterm Term, int level, Uint flags)
+static Eterm
+erts_term_to_binary_simple(Process* p, Eterm Term, Uint size, int level, Uint flags)
{
- Uint size;
Eterm bin;
size_t real_size;
byte* endp;
- size = encode_size_struct2(NULL, Term, flags) + 1 /* VERSION_MAGIC */;
-
if (level != 0) {
byte buf[256];
byte* bytes = buf;
@@ -1414,6 +1462,318 @@ erts_term_to_binary(Process* p, Eterm Term, int level, Uint flags)
}
}
+Eterm
+erts_term_to_binary(Process* p, Eterm Term, int level, Uint flags) {
+ Uint size;
+ size = encode_size_struct2(NULL, Term, flags) + 1 /* VERSION_MAGIC */;
+ return erts_term_to_binary_simple(p, Term, size, level, flags);
+}
+
+/* Define for testing */
+/* #define EXTREME_TTB_TRAPPING 1 */
+
+#ifndef EXTREME_TTB_TRAPPING
+#define TERM_TO_BINARY_LOOP_FACTOR 500
+#define TERM_TO_BINARY_SIZE_FACTOR 500000
+#define TERM_TO_BINARY_COMPRESS_CHUNK 500000
+#else
+#define TERM_TO_BINARY_LOOP_FACTOR 1
+#define TERM_TO_BINARY_SIZE_FACTOR 10
+#define TERM_TO_BINARY_COMPRESS_CHUNK 10
+#endif
+
+
+typedef enum { TTBSize, TTBEncode, TTBCompress } TTBState;
+typedef struct {
+ Uint flags;
+ int level;
+} TTBSizeContext;
+
+typedef struct {
+ Uint flags;
+ int level;
+ Binary *result_bin;
+} TTBEncodeContext;
+
+typedef struct {
+ Uint real_size;
+ Uint dest_len;
+ byte *dbytes;
+ Binary *result_bin;
+ Binary *destination_bin;
+ z_stream stream;
+} TTBCompressContext;
+
+typedef struct {
+ int alive;
+ TTBState state;
+ union {
+ TTBSizeContext sc;
+ TTBEncodeContext ec;
+ TTBCompressContext cc;
+ } s;
+} TTBContext;
+
+static void context_destructor(Binary *context_bin)
+{
+ TTBContext *context = ERTS_MAGIC_BIN_DATA(context_bin);
+ if (context->alive) {
+ context->alive = 0;
+ switch (context->state) {
+ case TTBSize:
+ break;
+ case TTBEncode:
+ if (context->s.ec.result_bin != NULL) { /* Set to NULL if ever made alive! */
+ ASSERT(erts_refc_read(&(context->s.ec.result_bin->refc),0) == 0);
+ erts_bin_free(context->s.ec.result_bin);
+ context->s.ec.result_bin = NULL;
+ }
+ break;
+ case TTBCompress:
+ erl_zlib_deflate_finish(&(context->s.cc.stream));
+
+ if (context->s.cc.destination_bin != NULL) { /* Set to NULL if ever made alive! */
+ ASSERT(erts_refc_read(&(context->s.cc.destination_bin->refc),0) == 0);
+ erts_bin_free(context->s.cc.destination_bin);
+ context->s.cc.destination_bin = NULL;
+ }
+
+ if (context->s.cc.result_bin != NULL) { /* Set to NULL if ever made alive! */
+ ASSERT(erts_refc_read(&(context->s.cc.result_bin->refc),0) == 0);
+ erts_bin_free(context->s.cc.result_bin);
+ context->s.cc.result_bin = NULL;
+ }
+ break;
+ }
+ }
+}
+
+static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint flags,
+ Binary *context_b)
+{
+ Eterm *hp;
+ Eterm res;
+ Eterm c_term;
+#ifndef EXTREME_TTB_TRAPPING
+ Sint reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR);
+#else
+ Sint reds = 20; /* For testing */
+#endif
+ Sint initial_reds = reds;
+ TTBContext c_buff;
+ TTBContext *context = &c_buff;
+
+#define EXPORT_CONTEXT() \
+ do { \
+ if (context_b == NULL) { \
+ context_b = erts_create_magic_binary(sizeof(TTBContext), \
+ context_destructor); \
+ context = ERTS_MAGIC_BIN_DATA(context_b); \
+ memcpy(context,&c_buff,sizeof(TTBContext)); \
+ } \
+ } while (0)
+
+#define RETURN_STATE() \
+ do { \
+ hp = HAlloc(p, PROC_BIN_SIZE+3); \
+ c_term = erts_mk_magic_binary_term(&hp, &MSO(p), context_b); \
+ res = TUPLE2(hp, Term, c_term); \
+ BUMP_ALL_REDS(p); \
+ return res; \
+ } while (0);
+
+
+ if (context_b == NULL) {
+ /* Setup enough to get started */
+ context->state = TTBSize;
+ context->alive = 1;
+ context->s.sc.flags = flags;
+ context->s.sc.level = level;
+ } else {
+ context = ERTS_MAGIC_BIN_DATA(context_b);
+ }
+ /* Initialization done, now we will go through the states */
+ for (;;) {
+ switch (context->state) {
+ case TTBSize:
+ {
+ Uint size;
+ Binary *result_bin;
+ int level;
+ Uint flags;
+ /* Try for fast path */
+ if (encode_size_struct_int(p, NULL, Term, context->s.sc.flags, &reds, &size) < 0) {
+ EXPORT_CONTEXT();
+ /* Same state */
+ RETURN_STATE();
+ }
+ ++size; /* VERSION_MAGIC */
+ /* Move these to next state */
+ flags = context->s.sc.flags;
+ level = context->s.sc.level;
+ if (size <= ERL_ONHEAP_BIN_LIMIT) {
+ /* Finish in one go */
+ res = erts_term_to_binary_simple(p, Term, size,
+ level, flags);
+ BUMP_REDS(p, size / TERM_TO_BINARY_SIZE_FACTOR);
+ return res;
+ }
+
+ result_bin = erts_bin_nrml_alloc(size);
+ result_bin->flags = 0;
+ result_bin->orig_size = size;
+ erts_refc_init(&result_bin->refc, 0);
+ result_bin->orig_bytes[0] = VERSION_MAGIC;
+ /* Next state immediately, no need to export context */
+ context->state = TTBEncode;
+ context->s.ec.flags = flags;
+ context->s.ec.level = level;
+ context->s.ec.result_bin = result_bin;
+ break;
+ }
+ case TTBEncode:
+ {
+ byte *endp;
+ byte *bytes = (byte *) context->s.ec.result_bin->orig_bytes;
+ size_t real_size;
+ Binary *result_bin;
+
+ flags = context->s.ec.flags;
+ if (enc_term_int(p,NULL,Term, bytes+1, flags, NULL, &reds, &endp) < 0) {
+ EXPORT_CONTEXT();
+ RETURN_STATE();
+ }
+ real_size = endp - bytes;
+ result_bin = erts_bin_realloc(context->s.ec.result_bin,real_size);
+ level = context->s.ec.level;
+ BUMP_REDS(p, (initial_reds - reds) / TERM_TO_BINARY_LOOP_FACTOR);
+ if (level == 0 || real_size < 6) { /* We are done */
+ ProcBin* pb;
+ return_normal:
+ context->s.ec.result_bin = NULL;
+ context->alive = 0;
+ pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE);
+ pb->thing_word = HEADER_PROC_BIN;
+ pb->size = real_size;
+ pb->next = MSO(p).first;
+ MSO(p).first = (struct erl_off_heap_header*)pb;
+ pb->val = result_bin;
+ pb->bytes = (byte*) result_bin->orig_bytes;
+ pb->flags = 0;
+ OH_OVERHEAD(&(MSO(p)), pb->size / sizeof(Eterm));
+ erts_refc_inc(&result_bin->refc, 1);
+ return make_binary(pb);
+ }
+ /* Continue with compression... */
+ /* To make absolutely sure that zlib does not barf on a reallocated context,
+ we make sure it's "exported" before doing anything compession-like */
+ EXPORT_CONTEXT();
+ bytes = (byte *) result_bin->orig_bytes; /* result_bin is reallocated */
+ if (erl_zlib_deflate_start(&(context->s.cc.stream),bytes+1,real_size-1,level)
+ != Z_OK) {
+ goto return_normal;
+ }
+ context->state = TTBCompress;
+ context->s.cc.real_size = real_size;
+ context->s.cc.result_bin = result_bin;
+
+ result_bin = erts_bin_nrml_alloc(real_size);
+ result_bin->flags = 0;
+ result_bin->orig_size = real_size;
+ erts_refc_init(&result_bin->refc, 0);
+ result_bin->orig_bytes[0] = VERSION_MAGIC;
+
+ context->s.cc.destination_bin = result_bin;
+ context->s.cc.dest_len = 0;
+ context->s.cc.dbytes = (byte *) result_bin->orig_bytes+6;
+ break;
+ }
+ case TTBCompress:
+ {
+ uLongf tot_dest_len = context->s.cc.real_size - 6;
+ uLongf left = (tot_dest_len - context->s.cc.dest_len);
+ uLongf this_time = (left > TERM_TO_BINARY_COMPRESS_CHUNK) ?
+ TERM_TO_BINARY_COMPRESS_CHUNK :
+ left;
+ Binary *result_bin;
+ ProcBin *pb;
+ Uint max = (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_COMPRESS_CHUNK) / CONTEXT_REDS;
+
+ if (max < this_time) {
+ this_time = max + 1; /* do not set this_time to 0 */
+ }
+
+ res = erl_zlib_deflate_chunk(&(context->s.cc.stream), context->s.cc.dbytes, &this_time);
+ context->s.cc.dbytes += this_time;
+ context->s.cc.dest_len += this_time;
+ switch (res) {
+ case Z_OK:
+ if (context->s.cc.dest_len >= tot_dest_len) {
+ goto no_use_compressing;
+ }
+ RETURN_STATE();
+ case Z_STREAM_END:
+ {
+ byte *dbytes = (byte *) context->s.cc.destination_bin->orig_bytes + 1;
+
+ dbytes[0] = COMPRESSED;
+ put_int32(context->s.cc.real_size-1,dbytes+1);
+ erl_zlib_deflate_finish(&(context->s.cc.stream));
+ result_bin = erts_bin_realloc(context->s.cc.destination_bin,
+ context->s.cc.dest_len+6);
+ context->s.cc.destination_bin = NULL;
+ pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE);
+ pb->thing_word = HEADER_PROC_BIN;
+ pb->size = context->s.cc.dest_len+6;
+ pb->next = MSO(p).first;
+ MSO(p).first = (struct erl_off_heap_header*)pb;
+ pb->val = result_bin;
+ pb->bytes = (byte*) result_bin->orig_bytes;
+ pb->flags = 0;
+ OH_OVERHEAD(&(MSO(p)), pb->size / sizeof(Eterm));
+ erts_refc_inc(&result_bin->refc, 1);
+ erts_bin_free(context->s.cc.result_bin);
+ context->s.cc.result_bin = NULL;
+ context->alive = 0;
+ BUMP_REDS(p, (this_time * CONTEXT_REDS) / TERM_TO_BINARY_COMPRESS_CHUNK);
+ return make_binary(pb);
+ }
+ default: /* Compression error, revert to uncompressed binary (still in
+ context) */
+ no_use_compressing:
+ result_bin = context->s.cc.result_bin;
+ context->s.cc.result_bin = NULL;
+ pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE);
+ pb->thing_word = HEADER_PROC_BIN;
+ pb->size = context->s.cc.real_size;
+ pb->next = MSO(p).first;
+ MSO(p).first = (struct erl_off_heap_header*)pb;
+ pb->val = result_bin;
+ pb->bytes = (byte*) result_bin->orig_bytes;
+ pb->flags = 0;
+ OH_OVERHEAD(&(MSO(p)), pb->size / sizeof(Eterm));
+ erts_refc_inc(&result_bin->refc, 1);
+ erl_zlib_deflate_finish(&(context->s.cc.stream));
+ erts_bin_free(context->s.cc.destination_bin);
+ context->s.cc.destination_bin = NULL;
+ context->alive = 0;
+ BUMP_REDS(p, (this_time * CONTEXT_REDS) / TERM_TO_BINARY_COMPRESS_CHUNK);
+ return make_binary(pb);
+ }
+ }
+ }
+ }
+#undef EXPORT_CONTEXT
+#undef RETURN_STATE
+}
+
+
+
+
+
+
+
+
/*
* This function fills ext with the external format of atom.
* If it's an old atom we just supply an index, otherwise
@@ -1678,32 +2038,71 @@ dec_pid(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Ete
#define ENC_PATCH_FUN_SIZE ((Eterm) 2)
#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 3)
+/* Free extra rootset (used when trapping) */
+static void cleanup_ttb_extra_root(ErlExtraRootSet *rs)
+{
+ if (rs->objv != NULL) {
+ erts_free(ERTS_ALC_T_EXTRA_ROOT, rs->objv);
+ }
+ erts_free(ERTS_ALC_T_EXTRA_ROOT, rs);
+}
+
+/* Same as above, but we have an extra "stack" beyond GC reach, i.e. an array of two extra roots */
+static void cleanup_ttb_extra_root_2(ErlExtraRootSet *rs)
+{
+ if (rs->objv != NULL) {
+ erts_free(ERTS_ALC_T_EXTRA_ROOT, rs->objv);
+ }
+ if (rs[1].objv != NULL) {
+ erts_free(ERTS_ALC_T_EXTRA_ROOT, rs[1].objv);
+ }
+
+ erts_free(ERTS_ALC_T_EXTRA_ROOT, rs);
+}
+
static byte*
enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
struct erl_off_heap_header** off_heap)
{
- DECLARE_WSTACK(s);
+ byte *res;
+ (void) enc_term_int(NULL, acmp, obj, ep, dflags, off_heap, NULL, &res);
+ return res;
+}
+
+static int
+enc_term_int(Process *p,ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
+ struct erl_off_heap_header** off_heap, Sint *reds, byte **res)
+{
+ DECLARE_ESTACK(s);
+ DECLARE_WSTACK(com);
Uint n;
Uint i;
Uint j;
Uint* ptr;
Eterm val;
FloatDef f;
-#if HALFWORD_HEAP
- UWord wobj;
-#endif
+ int count_reds = (p != NULL && reds != NULL);
+ Sint r = 0;
+ if (count_reds) {
+ ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_EXTRA_ROOT);
+ WSTACK_CHANGE_ALLOCATOR(com, ERTS_ALC_T_EXTRA_ROOT);
+ r = *reds;
+ }
+
+ if (p && p->extra_root) { /* restore saved stacks and byte pointer */
+ ESTACK_RESTORE(s,p->extra_root[0].objv, p->extra_root[0].sz);
+ obj = ESTACK_POP(s);
+ WSTACK_RESTORE(com, p->extra_root[1].objv, p->extra_root[1].sz);
+ ep = (byte *) WSTACK_POP(com);
+ }
goto L_jump_start;
outer_loop:
- while (!WSTACK_ISEMPTY(s)) {
-#if HALFWORD_HEAP
- obj = (Eterm) (wobj = WSTACK_POP(s));
-#else
- obj = WSTACK_POP(s);
-#endif
- switch (val = WSTACK_POP(s)) {
+ while (!ESTACK_ISEMPTY(s)) {
+ obj = ESTACK_POP(s);
+ switch (val = WSTACK_POP(com)) {
case ENC_TERM:
break;
case ENC_ONE_CONS:
@@ -1714,45 +2113,57 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
obj = CAR(cons);
tl = CDR(cons);
- WSTACK_PUSH(s, is_list(tl) ? ENC_ONE_CONS : ENC_TERM);
- WSTACK_PUSH(s, tl);
+ WSTACK_PUSH(com, is_list(tl) ? ENC_ONE_CONS : ENC_TERM);
+ ESTACK_PUSH(s, tl);
}
break;
case ENC_PATCH_FUN_SIZE:
+ /* obj will be discarded, it was NIL */
{
-#if HALFWORD_HEAP
- byte* size_p = (byte *) wobj;
-#else
- byte* size_p = (byte *) obj;
-#endif
+ byte* size_p = (byte *) WSTACK_POP(com);
put_int32(ep - size_p, size_p);
}
goto outer_loop;
case ENC_LAST_ARRAY_ELEMENT:
+ /* obj is the tuple */
{
-#if HALFWORD_HEAP
- Eterm* ptr = (Eterm *) wobj;
-#else
- Eterm* ptr = (Eterm *) obj;
-#endif
- obj = *ptr;
+ Eterm* ptr = tuple_val(obj);
+ i = arityval(*ptr);
+ obj = ptr[i];
}
break;
default: /* ENC_LAST_ARRAY_ELEMENT+1 and upwards */
{
-#if HALFWORD_HEAP
- Eterm* ptr = (Eterm *) wobj;
-#else
- Eterm* ptr = (Eterm *) obj;
-#endif
- obj = *ptr++;
- WSTACK_PUSH(s, val-1);
- WSTACK_PUSH(s, (UWord) ptr);
+ Eterm* ptr = tuple_val(obj);
+ i = arityval(*ptr);
+ ESTACK_PUSH(s, obj); /* put back tuple and next element index */
+ WSTACK_PUSH(com, val-1);
+ obj = ptr[i - (val - ENC_LAST_ARRAY_ELEMENT)]; /* the index is counting down */
}
break;
}
L_jump_start:
+
+ if (count_reds && --r == 0) {
+ *reds = r;
+ ESTACK_PUSH(s,obj); /* push back current object, to be popped on restore */
+ WSTACK_PUSH(com,((UWord) ep));
+ if (p->extra_root == NULL) {
+ /* NB. Allocate an array of two "extra-roots", of which only the first element
+ is seen and handled by the GC. Index 1 holds the Wstack. */
+ p->extra_root = erts_alloc(ERTS_ALC_T_EXTRA_ROOT, sizeof(ErlExtraRootSet)*2);
+ p->extra_root->objv = NULL;
+ p->extra_root->sz = 0;
+ p->extra_root->cleanup = cleanup_ttb_extra_root_2;
+ p->extra_root[1].objv = NULL;
+ p->extra_root[1].sz = 0;
+ p->extra_root[1].cleanup = NULL; /* Never used */
+ }
+ ESTACK_SAVE(s, p->extra_root[0].objv, p->extra_root[0].sz);
+ WSTACK_SAVE(com, p->extra_root[1].objv, (p->extra_root[1].sz));
+ return -1;
+ }
switch(tag_val_def(obj)) {
case NIL_DEF:
*ep++ = NIL_EXT;
@@ -1896,8 +2307,8 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
ep += 4;
}
if (i > 0) {
- WSTACK_PUSH(s, ENC_LAST_ARRAY_ELEMENT+i-1);
- WSTACK_PUSH(s, (UWord) ptr);
+ WSTACK_PUSH(com, ENC_LAST_ARRAY_ELEMENT+i-1);
+ ESTACK_PUSH(s, obj);
}
break;
@@ -2041,8 +2452,9 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
int ei;
*ep++ = NEW_FUN_EXT;
- WSTACK_PUSH(s, ENC_PATCH_FUN_SIZE);
- WSTACK_PUSH(s, (UWord) ep); /* Position for patching in size */
+ WSTACK_PUSH(com, (UWord) ep); /* Position for patching in size */
+ WSTACK_PUSH(com, ENC_PATCH_FUN_SIZE);
+ ESTACK_PUSH(s,NIL); /* Will be thrown away */
ep += 4;
*ep = funp->arity;
ep += 1;
@@ -2059,8 +2471,8 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
fun_env:
for (ei = funp->num_free-1; ei > 0; ei--) {
- WSTACK_PUSH(s, ENC_TERM);
- WSTACK_PUSH(s, (UWord) funp->env[ei]);
+ WSTACK_PUSH(com, ENC_TERM);
+ ESTACK_PUSH(s, (UWord) funp->env[ei]);
}
if (funp->num_free != 0) {
obj = funp->env[0];
@@ -2103,8 +2515,17 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
break;
}
}
- DESTROY_WSTACK(s);
- return ep;
+ DESTROY_ESTACK(s);
+ DESTROY_WSTACK(com);
+ if (p && p->extra_root) {
+ cleanup_ttb_extra_root_2(p->extra_root);
+ p->extra_root = NULL;
+ }
+ if (count_reds) {
+ *reds = r;
+ }
+ *res = ep;
+ return 0;
}
static
@@ -2892,51 +3313,47 @@ dec_term_atom_common:
to a sequence of bytes
N.B. That this must agree with to_external2() above!!!
(except for cached atoms) */
+static Uint encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags) {
+ Uint res;
+ (void) encode_size_struct_int(NULL, acmp, obj, dflags, NULL, &res);
+ return res;
+}
-static Uint
-encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags)
+static int
+encode_size_struct_int(Process *p, ErtsAtomCacheMap *acmp, Eterm obj,
+ unsigned dflags, Sint *reds, Uint *res)
{
- DECLARE_WSTACK(s);
+ DECLARE_ESTACK(s);
Uint m, i, arity;
Uint result = 0;
-#if HALFWORD_HEAP
- UWord wobj = 0;
-#endif
+ int count_reds = (p != NULL && reds != 0);
+ Sint r = 0;
+
+ if (count_reds) {
+ ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_EXTRA_ROOT);
+ r = *reds;
+ }
+
+ if (p && p->extra_root) { /* restore saved stack */
+ ESTACK_RESTORE(s,p->extra_root->objv, p->extra_root->sz + 1);
+ result = ESTACK_POP(s); /*Untagged, beyond p->extra_root->sz */
+ obj = ESTACK_POP(s);
+
+ }
goto L_jump_start;
outer_loop:
- while (!WSTACK_ISEMPTY(s)) {
-#if HALFWORD_HEAP
- obj = (Eterm) (wobj = WSTACK_POP(s));
-#else
- obj = WSTACK_POP(s);
-#endif
+ while (!ESTACK_ISEMPTY(s)) {
+ obj = ESTACK_POP(s);
handle_popped_obj:
- if (is_CP(obj)) { /* Does not look for CP, looks for "no tag" */
-#if HALFWORD_HEAP
- Eterm* ptr = (Eterm *) wobj;
-#else
- Eterm* ptr = (Eterm *) obj;
-#endif
- /*
- * Pointer into a tuple.
- */
- obj = *ptr--;
- if (!is_header(obj)) {
- WSTACK_PUSH(s, (UWord)ptr);
- } else {
- /* Reached tuple header */
- ASSERT(header_is_arityval(obj));
- goto outer_loop;
- }
- } else if (is_list(obj)) {
+ if (is_list(obj)) {
Eterm* cons = list_val(obj);
Eterm tl;
tl = CDR(cons);
obj = CAR(cons);
- WSTACK_PUSH(s, tl);
+ ESTACK_PUSH(s, tl);
} else if (is_nil(obj)) {
result++;
goto outer_loop;
@@ -2948,6 +3365,20 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags)
}
L_jump_start:
+ if (count_reds && --r == 0) {
+ *reds = r;
+ ESTACK_PUSH(s,obj); /* push back current object */
+ ESTACK_PUSH(s,result); /* Untagged, will be out of GC reach */
+ if (p->extra_root == NULL) {
+ p->extra_root = erts_alloc(ERTS_ALC_T_EXTRA_ROOT, sizeof(ErlExtraRootSet));
+ p->extra_root->objv = NULL;
+ p->extra_root->sz = 0;
+ p->extra_root->cleanup = cleanup_ttb_extra_root;
+ }
+ ESTACK_SAVE(s, p->extra_root->objv, p->extra_root->sz);
+ --p->extra_root->sz; /* Hide result from GC */
+ return -1;
+ }
switch (tag_val_def(obj)) {
case NIL_DEF:
result++;
@@ -3034,20 +3465,24 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags)
case TUPLE_DEF:
{
Eterm* ptr = tuple_val(obj);
-
+ Uint i;
arity = arityval(*ptr);
if (arity <= 0xff) {
result += 1 + 1;
} else {
result += 1 + 4;
}
- ptr += arity;
-#if HALFWORD_HEAP
- obj = (Eterm) (wobj = (UWord) ptr);
-#else
- obj = (Eterm) ptr;
-#endif
- goto handle_popped_obj;
+ for (i = 1; i <= arity; ++i) {
+ if (is_list(ptr[i])) {
+ if ((m = is_string(obj)) && (m < MAX_STRING_LEN)) {
+ result += m + 2 + 1;
+ } else {
+ result += 5;
+ }
+ }
+ ESTACK_PUSH(s,ptr[i]);
+ }
+ goto outer_loop;
}
break;
case FLOAT_DEF:
@@ -3105,14 +3540,14 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags)
if (is_not_list(obj)) {
/* Push any non-list terms on the stack */
- WSTACK_PUSH(s, obj);
+ ESTACK_PUSH(s, obj);
} else {
/* Lists must be handled specially. */
if ((m = is_string(obj)) && (m < MAX_STRING_LEN)) {
result += m + 2 + 1;
} else {
result += 5;
- WSTACK_PUSH(s, obj);
+ ESTACK_PUSH(s, obj);
}
}
}
@@ -3143,8 +3578,16 @@ encode_size_struct2(ErtsAtomCacheMap *acmp, Eterm obj, unsigned dflags)
}
}
- DESTROY_WSTACK(s);
- return result;
+ DESTROY_ESTACK(s);
+ if (p && p->extra_root) {
+ cleanup_ttb_extra_root(p->extra_root);
+ p->extra_root = NULL;
+ }
+ if (count_reds) {
+ *reds = r;
+ }
+ *res = result;
+ return 0;
}
static Sint
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 12eb3bfb7c..25aedc91c6 100755
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -376,7 +376,7 @@ extern int stackdump_on_exit;
*/
-void erl_grow_stack(Eterm** start, Eterm** sp, Eterm** end);
+void erl_grow_stack(ErtsAlcType_t a_type, Eterm** start, Eterm** sp, Eterm** end);
#define ESTK_CONCAT(a,b) a##b
#define ESTK_SUBSCRIPT(s,i) *((Eterm *)((byte *)ESTK_CONCAT(s,_start) + (i)))
#define DEF_ESTACK_SIZE (16)
@@ -385,20 +385,79 @@ void erl_grow_stack(Eterm** start, Eterm** sp, Eterm** end);
Eterm ESTK_CONCAT(s,_default_stack)[DEF_ESTACK_SIZE]; \
Eterm* ESTK_CONCAT(s,_start) = ESTK_CONCAT(s,_default_stack); \
Eterm* ESTK_CONCAT(s,_sp) = ESTK_CONCAT(s,_start); \
- Eterm* ESTK_CONCAT(s,_end) = ESTK_CONCAT(s,_start) + DEF_ESTACK_SIZE
+ Eterm* ESTK_CONCAT(s,_end) = ESTK_CONCAT(s,_start) + DEF_ESTACK_SIZE;\
+ ErtsAlcType_t ESTK_CONCAT(s,_alloc_type) = ERTS_ALC_T_ESTACK
+
+#define ESTACK_CHANGE_ALLOCATOR(s,t) \
+do { \
+ if (ESTK_CONCAT(s,_start) != ESTK_CONCAT(s,_default_stack)) { \
+ erl_exit(1, "Internal error - trying to change allocator " \
+ "type of active estack\n"); \
+ } \
+ ESTK_CONCAT(s,_alloc_type) = (t); \
+ } while (0)
+
+/*
+ * Do not free the stack after this, it may have pointers into what
+ * was saved in 'v'. 'v' and 'vsize' are changed by this macro. If
+ * 'v' points to anything, it should have been allocated by a previous
+ * call to this macro. Be careful to set a correct allocator prior to
+ * saving.
+ * 'v' can be any lvalue pointer, it will point to an array of UWord
+ * after calling this macro.
+ */
+#define ESTACK_SAVE(s,v,vsize) /* v and vsize are "name parameters" */ \
+do { \
+ Uint _esz = ESTACK_COUNT(s); \
+ if (ESTK_CONCAT(s,_start) == ESTK_CONCAT(s,_default_stack)) { \
+ if ((v) == NULL) { \
+ (v) = erts_alloc(ESTK_CONCAT(s,_alloc_type), \
+ DEF_ESTACK_SIZE * sizeof(Eterm)); \
+ } \
+ memcpy((v),ESTK_CONCAT(s,_start),_esz*sizeof(Eterm)); \
+ } else { \
+ (v) = (void *) ESTK_CONCAT(s,_start); \
+ } \
+ (vsize) = _esz; \
+ } while (0)
+
+/*
+ * Use on empty stack, only the allocator can be changed before this
+ * The vector parameter is reset to NULL if the vector is moved to stack,
+ * otherwise it's kept for reuse, so a saved and restored vector might
+ * need freeing using the correct allocator parameter.
+ * 'v' can be any lvalue pointer, it's cast to an (Eterm *).
+ */
+#define ESTACK_RESTORE(s, v, vsize) /*v is a "name parameter"*/ \
+do { \
+ if ((vsize) > DEF_ESTACK_SIZE) { \
+ Uint _ca = DEF_ESTACK_SIZE; \
+ while (_ca < (vsize)) \
+ _ca = _ca * 2; \
+ ESTK_CONCAT(s,_start) = (Eterm *) (v); \
+ ESTK_CONCAT(s,_end) = ((Eterm *)(v)) + _ca; \
+ ESTK_CONCAT(s,_sp) = ESTK_CONCAT(s,_start) + (vsize); \
+ (v) = NULL; \
+ } else { \
+ memcpy(ESTK_CONCAT(s,_start),(v),(vsize)*sizeof(Eterm));\
+ ESTK_CONCAT(s,_sp) = ESTK_CONCAT(s,_start) + (vsize); \
+ } \
+ } while (0)
+
+#define ESTACK_IS_STATIC(s) (ESTK_CONCAT(s,_start) == ESTK_CONCAT(s,_default_stack))
#define DESTROY_ESTACK(s) \
do { \
if (ESTK_CONCAT(s,_start) != ESTK_CONCAT(s,_default_stack)) { \
- erts_free(ERTS_ALC_T_ESTACK, ESTK_CONCAT(s,_start)); \
+ erts_free(ESTK_CONCAT(s,_alloc_type), ESTK_CONCAT(s,_start)); \
} \
} while(0)
#define ESTACK_PUSH(s, x) \
do { \
if (ESTK_CONCAT(s,_sp) == ESTK_CONCAT(s,_end)) { \
- erl_grow_stack(&ESTK_CONCAT(s,_start), &ESTK_CONCAT(s,_sp), \
- &ESTK_CONCAT(s,_end)); \
+ erl_grow_stack(ESTK_CONCAT(s,_alloc_type),&ESTK_CONCAT(s,_start), \
+ &ESTK_CONCAT(s,_sp), &ESTK_CONCAT(s,_end)); \
} \
*ESTK_CONCAT(s,_sp)++ = (x); \
} while(0)
@@ -406,8 +465,8 @@ do { \
#define ESTACK_PUSH2(s, x, y) \
do { \
if (ESTK_CONCAT(s,_sp) > ESTK_CONCAT(s,_end) - 2) { \
- erl_grow_stack(&ESTK_CONCAT(s,_start), &ESTK_CONCAT(s,_sp), \
- &ESTK_CONCAT(s,_end)); \
+ erl_grow_stack(ESTK_CONCAT(s,_alloc_type),&ESTK_CONCAT(s,_start), \
+ &ESTK_CONCAT(s,_sp), &ESTK_CONCAT(s,_end)); \
} \
*ESTK_CONCAT(s,_sp)++ = (x); \
*ESTK_CONCAT(s,_sp)++ = (y); \
@@ -430,7 +489,7 @@ do { \
#define ESTACK_POP(s) (*(--ESTK_CONCAT(s,_sp)))
-void erl_grow_wstack(UWord** start, UWord** sp, UWord** end);
+void erl_grow_wstack(ErtsAlcType_t a_type, UWord** start, UWord** sp, UWord** end);
#define WSTK_CONCAT(a,b) a##b
#define WSTK_SUBSCRIPT(s,i) *((UWord *)((byte *)WSTK_CONCAT(s,_start) + (i)))
#define DEF_WSTACK_SIZE (16)
@@ -439,20 +498,79 @@ void erl_grow_wstack(UWord** start, UWord** sp, UWord** end);
UWord WSTK_CONCAT(s,_default_stack)[DEF_WSTACK_SIZE]; \
UWord* WSTK_CONCAT(s,_start) = WSTK_CONCAT(s,_default_stack); \
UWord* WSTK_CONCAT(s,_sp) = WSTK_CONCAT(s,_start); \
- UWord* WSTK_CONCAT(s,_end) = WSTK_CONCAT(s,_start) + DEF_WSTACK_SIZE
+ UWord* WSTK_CONCAT(s,_end) = WSTK_CONCAT(s,_start) + DEF_WSTACK_SIZE; \
+ ErtsAlcType_t WSTK_CONCAT(s,_alloc_type) = ERTS_ALC_T_ESTACK
+
+#define WSTACK_CHANGE_ALLOCATOR(s,t) \
+do { \
+ if (WSTK_CONCAT(s,_start) != WSTK_CONCAT(s,_default_stack)) { \
+ erl_exit(1, "Internal error - trying to change allocator " \
+ "type of active wstack\n"); \
+ } \
+ WSTK_CONCAT(s,_alloc_type) = (t); \
+ } while (0)
#define DESTROY_WSTACK(s) \
do { \
if (WSTK_CONCAT(s,_start) != WSTK_CONCAT(s,_default_stack)) { \
- erts_free(ERTS_ALC_T_ESTACK, WSTK_CONCAT(s,_start)); \
+ erts_free(WSTK_CONCAT(s,_alloc_type), WSTK_CONCAT(s,_start)); \
} \
} while(0)
+/*
+ * Do not free the stack after this, it may have pointers into what
+ * was saved in 'v'. 'v' and 'vsize' are changed by this macro. If
+ * 'v' points to anything, it should have been allocated by a previous
+ * call to this macro. Be careful to set a correct allocator prior to
+ * saving.
+ * 'v' can be any lvalue pointer, it will point to an array of UWord
+ * after calling this macro.
+ */
+#define WSTACK_SAVE(s,v,vsize) /* v and vsize are "name parameters" */ \
+do { \
+ Uint _wsz = WSTACK_COUNT(s); \
+ if (WSTK_CONCAT(s,_start) == WSTK_CONCAT(s,_default_stack)) { \
+ if ((v) == NULL) { \
+ (v) = erts_alloc(WSTK_CONCAT(s,_alloc_type), \
+ DEF_WSTACK_SIZE * sizeof(UWord)); \
+ } \
+ memcpy((v),WSTK_CONCAT(s,_start),_wsz*sizeof(UWord)); \
+ } else { \
+ (v) = (void *) WSTK_CONCAT(s,_start); \
+ } \
+ (vsize) = _wsz; \
+ } while (0)
+
+/*
+ * Use on empty stack, only the allocator can be changed before this
+ * The vector parameter is reset to NULL if the vector is moved to stack,
+ * otherwise it's kept for reuse, so a saved and restored vector might
+ * need freeing using the correct allocator parameter.
+ * 'v' can be any lvalue pointer, it's cast to an (UWord *).
+ */
+#define WSTACK_RESTORE(s, v, vsize) /*v is a "name parameter"*/ \
+do { \
+ if ((vsize) > DEF_WSTACK_SIZE) { \
+ Uint _ca = DEF_WSTACK_SIZE; \
+ while (_ca < (vsize)) \
+ _ca = _ca * 2; \
+ WSTK_CONCAT(s,_start) = (UWord *) (v); \
+ WSTK_CONCAT(s,_end) = ((UWord *)(v)) + _ca; \
+ WSTK_CONCAT(s,_sp) = WSTK_CONCAT(s,_start) + (vsize); \
+ (v) = NULL; \
+ } else { \
+ memcpy(WSTK_CONCAT(s,_start),(v),(vsize)*sizeof(UWord));\
+ WSTK_CONCAT(s,_sp) = WSTK_CONCAT(s,_start) + (vsize); \
+ } \
+ } while (0)
+
+#define WSTACK_IS_STATIC(s) (WSTK_CONCAT(s,_start) == WSTK_CONCAT(s,_default_stack))
+
#define WSTACK_PUSH(s, x) \
do { \
if (WSTK_CONCAT(s,_sp) == WSTK_CONCAT(s,_end)) { \
- erl_grow_wstack(&WSTK_CONCAT(s,_start), &WSTK_CONCAT(s,_sp), \
- &WSTK_CONCAT(s,_end)); \
+ erl_grow_wstack(WSTK_CONCAT(s,_alloc_type), &WSTK_CONCAT(s,_start), \
+ &WSTK_CONCAT(s,_sp), &WSTK_CONCAT(s,_end)); \
} \
*WSTK_CONCAT(s,_sp)++ = (x); \
} while(0)
@@ -460,8 +578,8 @@ do { \
#define WSTACK_PUSH2(s, x, y) \
do { \
if (WSTK_CONCAT(s,_sp) > WSTK_CONCAT(s,_end) - 2) { \
- erl_grow_wstack(&WSTK_CONCAT(s,_start), &WSTK_CONCAT(s,_sp), \
- &WSTK_CONCAT(s,_end)); \
+ erl_grow_wstack(WSTK_CONCAT(s,_alloc_type), &WSTK_CONCAT(s,_start), \
+ &WSTK_CONCAT(s,_sp), &WSTK_CONCAT(s,_end)); \
} \
*WSTK_CONCAT(s,_sp)++ = (x); \
*WSTK_CONCAT(s,_sp)++ = (y); \
@@ -470,8 +588,8 @@ do { \
#define WSTACK_PUSH3(s, x, y, z) \
do { \
if (WSTK_CONCAT(s,_sp) > WSTK_CONCAT(s,_end) - 3) { \
- erl_grow_wstack(&WSTK_CONCAT(s,_start), &WSTK_CONCAT(s,_sp), \
- &WSTK_CONCAT(s,_end)); \
+ erl_grow_wstack(WSTK_CONCAT(s,_alloc_type), &WSTK_CONCAT(s,_start), \
+ &WSTK_CONCAT(s,_sp), &WSTK_CONCAT(s,_end)); \
} \
*WSTK_CONCAT(s,_sp)++ = (x); \
*WSTK_CONCAT(s,_sp)++ = (y); \
@@ -773,6 +891,9 @@ Sint erts_re_set_loop_limit(Sint limit);
void erts_init_bif_binary(void);
Sint erts_binary_set_loop_limit(Sint limit);
+/* external.c */
+void erts_init_external(void);
+
/* erl_unicode.c */
void erts_init_unicode(void);
Sint erts_unicode_set_loop_limit(Sint limit);
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index 0a833f7e66..62caa67ce1 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -185,15 +185,15 @@ erts_set_hole_marker(Eterm* ptr, Uint sz)
* Helper function for the ESTACK macros defined in global.h.
*/
void
-erl_grow_stack(Eterm** start, Eterm** sp, Eterm** end)
+erl_grow_stack(ErtsAlcType_t a_type, Eterm** start, Eterm** sp, Eterm** end)
{
Uint old_size = (*end - *start);
Uint new_size = old_size * 2;
Uint sp_offs = *sp - *start;
if (new_size > 2 * DEF_ESTACK_SIZE) {
- *start = erts_realloc(ERTS_ALC_T_ESTACK, (void *) *start, new_size*sizeof(Eterm));
+ *start = erts_realloc(a_type, (void *) *start, new_size*sizeof(Eterm));
} else {
- Eterm* new_ptr = erts_alloc(ERTS_ALC_T_ESTACK, new_size*sizeof(Eterm));
+ Eterm* new_ptr = erts_alloc(a_type, new_size*sizeof(Eterm));
sys_memcpy(new_ptr, *start, old_size*sizeof(Eterm));
*start = new_ptr;
}
@@ -204,15 +204,15 @@ erl_grow_stack(Eterm** start, Eterm** sp, Eterm** end)
* Helper function for the ESTACK macros defined in global.h.
*/
void
-erl_grow_wstack(UWord** start, UWord** sp, UWord** end)
+erl_grow_wstack(ErtsAlcType_t a_type, UWord** start, UWord** sp, UWord** end)
{
Uint old_size = (*end - *start);
Uint new_size = old_size * 2;
Uint sp_offs = *sp - *start;
if (new_size > 2 * DEF_ESTACK_SIZE) {
- *start = erts_realloc(ERTS_ALC_T_ESTACK, (void *) *start, new_size*sizeof(UWord));
+ *start = erts_realloc(a_type, (void *) *start, new_size*sizeof(UWord));
} else {
- UWord* new_ptr = erts_alloc(ERTS_ALC_T_ESTACK, new_size*sizeof(UWord));
+ UWord* new_ptr = erts_alloc(a_type, new_size*sizeof(UWord));
sys_memcpy(new_ptr, *start, old_size*sizeof(UWord));
*start = new_ptr;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 20:59:52 +0000