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-rw-r--r--erts/emulator/beam/io.c89
1 files changed, 54 insertions, 35 deletions
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 7c6696405b..1db3a9fba7 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -47,6 +47,7 @@
#include "external.h"
#include "dtrace-wrapper.h"
#include "erl_map.h"
+#include "erl_bif_unique.h"
extern ErlDrvEntry fd_driver_entry;
#ifndef __OSE__
@@ -391,7 +392,7 @@ static Port *create_port(char *name,
/* Set default tracing */
erts_get_default_tracing(&ERTS_TRACE_FLAGS(prt), &ERTS_TRACER_PROC(prt));
- ASSERT(((char *) prt) == ((char *) &prt->common));
+ ERTS_CT_ASSERT(offsetof(Port,common) == 0);
#if !ERTS_PORT_INIT_INSTR_NEED_ID
/*
@@ -3153,8 +3154,6 @@ static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to,
Binary* bptr;
bptr = erts_bin_nrml_alloc(len);
- bptr->flags = 0;
- bptr->orig_size = len;
erts_refc_init(&bptr->refc, 1);
sys_memcpy(bptr->orig_bytes, buf, len);
@@ -5352,7 +5351,11 @@ 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_FLATMAP_SZ + 1 + 2*ptr[0];
+ }
depth -= 2*ptr[0];
if (depth < 0) ERTS_DDT_FAIL;
ptr++;
@@ -5507,8 +5510,6 @@ driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
ProcBin* pbp;
Binary* bp = erts_bin_nrml_alloc(size);
ASSERT(bufp);
- bp->flags = 0;
- bp->orig_size = (SWord) size;
erts_refc_init(&bp->refc, 1);
sys_memcpy((void *) bp->orig_bytes, (void *) bufp, size);
pbp = (ProcBin *) hp;
@@ -5598,31 +5599,52 @@ 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_FLATMAP;
+ mp->size = size;
+ mp->keys = make_tuple(tp);
+ mess = make_flatmap(mp);
+
+ hp += MAP_HEADER_FLATMAP_SZ + size;
+
+ 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;
}
@@ -6000,9 +6022,7 @@ driver_alloc_binary(ErlDrvSizeT size)
bin = erts_bin_drv_alloc_fnf((Uint) size);
if (!bin)
return NULL; /* The driver write must take action */
- bin->flags = BIN_FLAG_DRV;
erts_refc_init(&bin->refc, 1);
- bin->orig_size = (SWord) size;
return Binary2ErlDrvBinary(bin);
}
@@ -6032,7 +6052,6 @@ ErlDrvBinary* driver_realloc_binary(ErlDrvBinary* bin, ErlDrvSizeT size)
if (!newbin)
return NULL;
- newbin->orig_size = size;
return Binary2ErlDrvBinary(newbin);
}
@@ -6706,7 +6725,7 @@ static void ref_to_driver_monitor(Eterm ref, ErlDrvMonitor *mon)
{
RefThing *refp;
ASSERT(is_internal_ref(ref));
- ASSERT(sizeof(RefThing) <= sizeof(ErlDrvMonitor));
+ ERTS_CT_ASSERT(sizeof(RefThing) <= sizeof(ErlDrvMonitor));
refp = ref_thing_ptr(ref);
memset(mon,0,sizeof(ErlDrvMonitor));
memcpy(mon,refp,sizeof(RefThing));