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talloc: add TC_POOL_FIRST_CHUNK() macro

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metze

Signed-off-By: Andrew Tridgell <tridge@samba.org>
This commit is contained in:
Stefan Metzmacher 2011-03-31 16:56:18 +02:00
parent 13fab67995
commit 73330f8436
1 changed files with 5 additions and 2 deletions
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7
lib/talloc/talloc.c
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@ -337,6 +337,9 @@ _PUBLIC_ const char *talloc_parent_name(const void *ptr)
PTR_DIFF(TC_HDR_SIZE + (_pool_tc)->size + (char *)(_pool_tc), \
(_pool_tc)->pool)
#define TC_POOL_FIRST_CHUNK(_pool_tc) \
((void *)(TC_HDR_SIZE + TALLOC_POOL_HDR_SIZE + (char *)(_pool_tc)))
static unsigned int *talloc_pool_objectcount(struct talloc_chunk *tc)
{
return (unsigned int *)((char *)tc + TC_HDR_SIZE);
@ -465,7 +468,7 @@ _PUBLIC_ void *talloc_pool(const void *context, size_t size)
tc = talloc_chunk_from_ptr(result);
tc->flags |= TALLOC_FLAG_POOL;
tc->pool = (char *)result + TALLOC_POOL_HDR_SIZE;
tc->pool = TC_POOL_FIRST_CHUNK(tc);
*talloc_pool_objectcount(tc) = 1;
@ -1115,7 +1118,7 @@ _PUBLIC_ void talloc_free_children(void *ptr)
if ((tc->flags & TALLOC_FLAG_POOL)
&& (*talloc_pool_objectcount(tc) == 1)) {
tc->pool = ((char *)tc + TC_HDR_SIZE + TALLOC_POOL_HDR_SIZE);
tc->pool = TC_POOL_FIRST_CHUNK(tc);
#if defined(DEVELOPER) && defined(VALGRIND_MAKE_MEM_NOACCESS)
VALGRIND_MAKE_MEM_NOACCESS(
tc->pool, tc->size - TALLOC_POOL_HDR_SIZE);