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ntdll: Merge HEAP_InitSubHeap and HEAP_CreateSubHeap.

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Alexandre Julliard 2008-10-31 13:00:15 +01:00
parent 6e1b7333e6
commit bb98004249
1 changed files with 24 additions and 50 deletions
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74
dlls/ntdll/heap.c
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@ -755,24 +755,37 @@ static BOOL validate_large_arena( HEAP *heap, const ARENA_LARGE *arena, BOOL qui
/***********************************************************************
* HEAP_InitSubHeap
* HEAP_CreateSubHeap
*/
static SUBHEAP *HEAP_InitSubHeap( HEAP *heap, LPVOID address, DWORD flags,
SIZE_T commitSize, SIZE_T totalSize )
static SUBHEAP *HEAP_CreateSubHeap( HEAP *heap, LPVOID address, DWORD flags,
SIZE_T commitSize, SIZE_T totalSize )
{
SUBHEAP *subheap;
FREE_LIST_ENTRY *pEntry;
unsigned int i;
/* Commit memory */
if (flags & HEAP_SHARED)
commitSize = totalSize; /* always commit everything in a shared heap */
if (NtAllocateVirtualMemory( NtCurrentProcess(), &address, 0,
&commitSize, MEM_COMMIT, get_protection_type( flags ) ))
if (!address)
{
WARN("Could not commit %08lx bytes for sub-heap %p\n", commitSize, address );
return NULL;
/* round-up sizes on a 64K boundary */
totalSize = (totalSize + 0xffff) & 0xffff0000;
commitSize = (commitSize + 0xffff) & 0xffff0000;
if (!commitSize) commitSize = 0x10000;
if (totalSize < commitSize) totalSize = commitSize;
if (flags & HEAP_SHARED) commitSize = totalSize; /* always commit everything in a shared heap */
/* allocate the memory block */
if (NtAllocateVirtualMemory( NtCurrentProcess(), &address, 0, &totalSize,
MEM_RESERVE, get_protection_type( flags ) ))
{
WARN("Could not allocate %08lx bytes\n", totalSize );
return NULL;
}
if (NtAllocateVirtualMemory( NtCurrentProcess(), &address, 0,
&commitSize, MEM_COMMIT, get_protection_type( flags ) ))
{
WARN("Could not commit %08lx bytes for sub-heap %p\n", commitSize, address );
return NULL;
}
}
if (heap)
@ -857,45 +870,6 @@ static SUBHEAP *HEAP_InitSubHeap( HEAP *heap, LPVOID address, DWORD flags,
return subheap;
}
/***********************************************************************
* HEAP_CreateSubHeap
*
* Create a sub-heap of the given size.
* If heap == NULL, creates a main heap.
*/
static SUBHEAP *HEAP_CreateSubHeap( HEAP *heap, void *base, DWORD flags,
SIZE_T commitSize, SIZE_T totalSize )
{
LPVOID address = base;
SUBHEAP *ret;
/* round-up sizes on a 64K boundary */
totalSize = (totalSize + 0xffff) & 0xffff0000;
commitSize = (commitSize + 0xffff) & 0xffff0000;
if (!commitSize) commitSize = 0x10000;
if (totalSize < commitSize) totalSize = commitSize;
if (!address)
{
/* allocate the memory block */
if (NtAllocateVirtualMemory( NtCurrentProcess(), &address, 0, &totalSize,
MEM_RESERVE, get_protection_type( flags ) ))
{
WARN("Could not allocate %08lx bytes\n", totalSize );
return NULL;
}
}
/* Initialize subheap */
if (!(ret = HEAP_InitSubHeap( heap, address, flags, commitSize, totalSize )))
{
SIZE_T size = 0;
if (!base) NtFreeVirtualMemory( NtCurrentProcess(), &address, &size, MEM_RELEASE );
}
return ret;
}
/***********************************************************************
* HEAP_FindFreeBlock