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Converted the process heap list to a standard list.

This commit is contained in:
Alexandre Julliard 2005-08-12 18:25:16 +00:00
parent 8328c61a01
commit 03c3b4e7e0
1 changed files with 25 additions and 29 deletions
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54
dlls/ntdll/heap.c
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@ -113,7 +113,7 @@ typedef struct tagSUBHEAP
typedef struct tagHEAP
{
SUBHEAP subheap; /* First sub-heap */
struct tagHEAP *next; /* Next heap for this process */
struct list entry; /* Entry in process heap list */
RTL_CRITICAL_SECTION critSection; /* Critical section for serialization */
FREE_LIST_ENTRY freeList[HEAP_NB_FREE_LISTS]; /* Free lists */
DWORD flags; /* Heap flags */
@ -126,9 +126,7 @@ typedef struct tagHEAP
#define HEAP_MIN_BLOCK_SIZE (8+sizeof(ARENA_FREE)) /* Min. heap block size */
#define COMMIT_MASK 0xffff /* bitmask for commit/decommit granularity */
static HANDLE processHeap; /* main process heap */
static HEAP *firstHeap; /* head of secondary heaps list */
static HEAP *processHeap; /* main process heap */
static BOOL HEAP_IsRealArena( HEAP *heapPtr, DWORD flags, LPCVOID block, BOOL quiet );
@ -190,7 +188,8 @@ static void HEAP_Dump( HEAP *heap )
char *ptr;
DPRINTF( "Heap: %p\n", heap );
DPRINTF( "Next: %p Sub-heaps: %p", heap->next, &heap->subheap );
DPRINTF( "Next: %p Sub-heaps: %p",
LIST_ENTRY( heap->entry.next, HEAP, entry ), &heap->subheap );
subheap = &heap->subheap;
while (subheap->next)
{
@ -592,7 +591,6 @@ static BOOL HEAP_InitSubHeap( HEAP *heap, LPVOID address, DWORD flags,
subheap->headerSize = ROUND_SIZE( sizeof(HEAP) );
subheap->next = NULL;
heap->next = NULL;
heap->flags = flags;
heap->magic = HEAP_MAGIC;
@ -1060,12 +1058,15 @@ HANDLE WINAPI RtlCreateHeap( ULONG flags, PVOID addr, SIZE_T totalSize, SIZE_T c
if (processHeap)
{
HEAP *heapPtr = subheap->heap;
RtlLockHeap( processHeap );
heapPtr->next = firstHeap;
firstHeap = heapPtr;
RtlUnlockHeap( processHeap );
RtlEnterCriticalSection( &processHeap->critSection );
list_add_head( &processHeap->entry, &heapPtr->entry );
RtlLeaveCriticalSection( &processHeap->critSection );
}
else
{
processHeap = subheap->heap; /* assume the first heap we create is the process main heap */
list_init( &processHeap->entry );
}
else processHeap = subheap->heap; /* assume the first heap we create is the process main heap */
return (HANDLE)subheap;
}
@ -1092,15 +1093,11 @@ HANDLE WINAPI RtlDestroyHeap( HANDLE heap )
if (!heapPtr) return heap;
if (heap == processHeap) return heap; /* cannot delete the main process heap */
else /* remove it from the per-process list */
{
HEAP **pptr;
RtlLockHeap( processHeap );
pptr = &firstHeap;
while (*pptr && *pptr != heapPtr) pptr = &(*pptr)->next;
if (*pptr) *pptr = (*pptr)->next;
RtlUnlockHeap( processHeap );
}
/* remove it from the per-process list */
RtlEnterCriticalSection( &processHeap->critSection );
list_remove( &heapPtr->entry );
RtlLeaveCriticalSection( &processHeap->critSection );
RtlDeleteCriticalSection( &heapPtr->critSection );
subheap = &heapPtr->subheap;
@ -1636,18 +1633,17 @@ HW_end:
*/
ULONG WINAPI RtlGetProcessHeaps( ULONG count, HANDLE *heaps )
{
ULONG total;
HEAP *ptr;
ULONG total = 1; /* main heap */
struct list *ptr;
if (!processHeap) return 0; /* should never happen */
total = 1; /* main heap */
RtlLockHeap( processHeap );
for (ptr = firstHeap; ptr; ptr = ptr->next) total++;
RtlEnterCriticalSection( &processHeap->critSection );
LIST_FOR_EACH( ptr, &processHeap->entry ) total++;
if (total <= count)
{
*heaps++ = (HANDLE)processHeap;
for (ptr = firstHeap; ptr; ptr = ptr->next) *heaps++ = (HANDLE)ptr;
*heaps++ = processHeap;
LIST_FOR_EACH( ptr, &processHeap->entry )
*heaps++ = LIST_ENTRY( ptr, HEAP, entry );
}
RtlUnlockHeap( processHeap );
RtlLeaveCriticalSection( &processHeap->critSection );
return total;
}