aboutsummaryrefslogtreecommitdiffstats
path: root/erts
diff options
context:
space:
mode:
authorBjörn-Egil Dahlberg <[email protected]>2015-03-31 18:20:31 +0200
committerBjörn-Egil Dahlberg <[email protected]>2015-03-31 18:47:59 +0200
commit7556ab9ee0949c94e13d1ccfc6c7755637730be4 (patch)
tree652065dc35d9ccbbed5451b3b0d3f60b58eaefe9 /erts
parent71a2a9e102fdcc904cf81dc6369663d79bbfc54a (diff)
downloadotp-7556ab9ee0949c94e13d1ccfc6c7755637730be4.tar.gz
otp-7556ab9ee0949c94e13d1ccfc6c7755637730be4.tar.bz2
otp-7556ab9ee0949c94e13d1ccfc6c7755637730be4.zip
erts: Use halfword secure tmp heap
Diffstat (limited to 'erts')
-rw-r--r--erts/emulator/beam/erl_map.c38
1 files changed, 27 insertions, 11 deletions
diff --git a/erts/emulator/beam/erl_map.c b/erts/emulator/beam/erl_map.c
index ab40f47919..2e31718629 100644
--- a/erts/emulator/beam/erl_map.c
+++ b/erts/emulator/beam/erl_map.c
@@ -392,12 +392,11 @@ 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;
-
+ DeclareTmpHeap(tmp,2,p);
ASSERT(size > 0);
hp = HAlloc(p, (2 * size));
@@ -405,6 +404,7 @@ static Eterm hashmap_from_validated_list(Process *p, Eterm list, Uint size) {
/* create tmp hx values and leaf ptrs */
hxns = (hxnode_t *)erts_alloc(ERTS_ALC_T_TMP, size * sizeof(hxnode_t));
+ UseTmpHeap(2,p);
while(is_list(item)) {
res = CAR(list_val(item));
kv = tuple_val(res);
@@ -417,6 +417,7 @@ static Eterm hashmap_from_validated_list(Process *p, Eterm list, Uint size) {
ix++;
item = CDR(list_val(item));
}
+ UnUseTmpHeap(2,p);
factory.p = p;
res = hashmap_from_unsorted_array(&factory, hxns, size, 0);
@@ -625,9 +626,9 @@ static Eterm hashmap_from_sorted_unique_array(ErtsHeapFactory* factory,
Uint i,ix,jx,elems;
Uint32 sw, hx;
Eterm val;
- Eterm th[2];
hxnode_t *tmp;
-
+ DeclareTmpHeapNoproc(th,2);
+ UseTmpHeapNoproc(2);
ASSERT(lvl < 32);
ix = 0;
elems = 1;
@@ -665,6 +666,7 @@ static Eterm hashmap_from_sorted_unique_array(ErtsHeapFactory* factory,
ERTS_FACTORY_HOLE_CHECK(factory);
+ UnUseTmpHeapNoproc(2);
return res;
}
@@ -1099,12 +1101,13 @@ static Eterm hashmap_merge(Process *p, Eterm nodeA, Eterm nodeB) {
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;
+ unsigned int lvl = 0;
+ DeclareTmpHeap(th,2,p);
Eterm res = THE_NON_VALUE;
+ UseTmpHeap(2,p);
/*
* Strategy: Do depth-first traversal of both trees (at the same time)
@@ -1297,6 +1300,7 @@ recurse:
res = make_boxed(nhp);
}
PSTACK_DESTROY(s);
+ UnUseTmpHeap(2,p);
return res;
}
@@ -1315,8 +1319,9 @@ static int hash_cmp(Uint32 ha, Uint32 hb)
int hashmap_key_hash_cmp(Eterm* ap, Eterm* bp)
{
- Eterm th[2];
- unsigned lvl = 0;
+ unsigned int lvl = 0;
+ DeclareTmpHeapNoproc(th,2);
+ UseTmpHeapNoproc(2);
if (ap && bp) {
ASSERT(CMP_TERM(CAR(ap), CAR(bp)) != 0);
@@ -1324,11 +1329,14 @@ int hashmap_key_hash_cmp(Eterm* ap, Eterm* bp)
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)
+ if (cmp) {
+ UnUseTmpHeapNoproc(2);
return cmp;
+ }
lvl += 8;
}
}
+ UnUseTmpHeapNoproc(2);
return ap ? -1 : 1;
}
@@ -1901,13 +1909,14 @@ 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;
+ DeclareTmpHeapNoproc(th,2);
*update_size = 1;
+ UseTmpHeapNoproc(2);
for (;;) {
switch(primary_tag(node)) {
case TAG_PRIMARY_LIST: /* LEAF NODE [K|V] */
@@ -1918,6 +1927,7 @@ int erts_hashmap_insert_down(Uint32 hx, Eterm key, Eterm node, Uint *sz,
goto unroll;
}
if (is_update) {
+ UnUseTmpHeapNoproc(2);
return 0;
}
goto insert_subnodes;
@@ -1953,6 +1963,7 @@ int erts_hashmap_insert_down(Uint32 hx, Eterm key, Eterm node, Uint *sz,
}
/* not occupied */
if (is_update) {
+ UnUseTmpHeapNoproc(2);
return 0;
}
size += HAMT_NODE_BITMAP_SZ(n+1);
@@ -1976,6 +1987,7 @@ int erts_hashmap_insert_down(Uint32 hx, Eterm key, Eterm node, Uint *sz,
}
/* not occupied */
if (is_update) {
+ UnUseTmpHeapNoproc(2);
return 0;
}
size += HAMT_HEAD_BITMAP_SZ(n+1);
@@ -2009,6 +2021,7 @@ insert_subnodes:
unroll:
*sz = size + /* res cons */ 2;
+ UnUseTmpHeapNoproc(2);
return 1;
}
@@ -2151,13 +2164,14 @@ static Eterm hashmap_values(Process* p, Eterm node) {
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);
+ DeclareTmpHeapNoproc(th,2);
+ UseTmpHeapNoproc(2);
for (;;) {
switch(primary_tag(node)) {
@@ -2268,6 +2282,7 @@ unroll:
erts_validate_and_sort_flatmap(mp);
DESTROY_WSTACK(wstack);
+ UnUseTmpHeapNoproc(2);
return make_flatmap(mp);
}
@@ -2408,6 +2423,7 @@ not_found:
DESTROY_ESTACK(stack);
ERTS_VERIFY_UNUSED_TEMP_ALLOC(p);
ERTS_HOLE_CHECK(p);
+ UnUseTmpHeapNoproc(2);
return res;
}