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ntdll: Use next_block helper in heap_reallocate. 

Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Rémi Bernon 2022-05-01 20:23:27 +02:00 committed by Alexandre Julliard
parent 39697a2c00
commit 90f766fa76
1 changed files with 7 additions and 7 deletions
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14
dlls/ntdll/heap.c
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@ -1683,7 +1683,7 @@ static NTSTATUS heap_reallocate( HEAP *heap, ULONG flags, void *ptr, SIZE_T size
oldActualSize = (pArena->size & ARENA_SIZE_MASK) - pArena->unused_bytes;
if (rounded_size > oldBlockSize)
{
char *pNext = (char *)(pArena + 1) + oldBlockSize;
struct block *next;
if (rounded_size >= HEAP_MIN_LARGE_BLOCK_SIZE && (flags & HEAP_GROWABLE))
{
@ -1694,14 +1694,14 @@ static NTSTATUS heap_reallocate( HEAP *heap, ULONG flags, void *ptr, SIZE_T size
HEAP_MakeInUseBlockFree( subheap, pArena );
return STATUS_SUCCESS;
}
if ((pNext < (char *)subheap->base + subheap->size) &&
(*(DWORD *)pNext & ARENA_FLAG_FREE) &&
(oldBlockSize + (*(DWORD *)pNext & ARENA_SIZE_MASK) + sizeof(ARENA_FREE) >= rounded_size))
if ((next = next_block( subheap, pArena )) && (block_get_flags( next ) & ARENA_FLAG_FREE) &&
(oldBlockSize + block_get_size( next ) >= rounded_size))
{
/* The next block is free and large enough */
ARENA_FREE *pFree = (ARENA_FREE *)pNext;
list_remove( &pFree->entry );
pArena->size += (pFree->size & ARENA_SIZE_MASK) + sizeof(*pFree);
struct entry *entry = (struct entry *)next;
list_remove( &entry->entry );
pArena->size += block_get_size( next );
if (!HEAP_Commit( subheap, pArena, rounded_size )) return STATUS_NO_MEMORY;
notify_realloc( pArena + 1, oldActualSize, size );
HEAP_ShrinkBlock( subheap, pArena, rounded_size );