Author: tfaber
Date: Sat Mar 24 17:38:21 2012
New Revision: 56221
URL: http://svn.reactos.org/svn/reactos?rev=56221&view=rev
Log:
[RTL/HEAP]
- Addendum to r56217. Let's not waste memory.
Modified:
trunk/reactos/lib/rtl/heap.c
Modified: trunk/reactos/lib/rtl/heap.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/heap.c?rev=56221&r…
==============================================================================
--- trunk/reactos/lib/rtl/heap.c [iso-8859-1] (original)
+++ trunk/reactos/lib/rtl/heap.c [iso-8859-1] Sat Mar 24 17:38:21 2012
@@ -510,7 +510,7 @@
}
/* There is a whole bunch of new UCR descriptors. Put them into the unused list */
- while ((PCHAR)(UcrDescriptor + 1) < (PCHAR)UcrSegment + UcrSegment->CommittedSize)
+ while ((PCHAR)(UcrDescriptor + 1) <= (PCHAR)UcrSegment + UcrSegment->CommittedSize)
{
InsertTailList(&Heap->UCRList, &UcrDescriptor->ListEntry);
UcrDescriptor++;
Author: tfaber
Date: Sat Mar 24 14:42:48 2012
New Revision: 56217
URL: http://svn.reactos.org/svn/reactos?rev=56217&view=rev
Log:
[RTL/HEAP]
- Do not overflow the uncommitted range descriptor segment. Really fixes notepad.
- Free the correct region in failure case
- Some comment fixes
See issue #6966 for more details.
Modified:
trunk/reactos/lib/rtl/heap.c
Modified: trunk/reactos/lib/rtl/heap.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/heap.c?rev=56217&r…
==============================================================================
--- trunk/reactos/lib/rtl/heap.c [iso-8859-1] (original)
+++ trunk/reactos/lib/rtl/heap.c [iso-8859-1] Sat Mar 24 14:42:48 2012
@@ -476,7 +476,7 @@
{
/* Release reserved memory */
ZwFreeVirtualMemory(NtCurrentProcess(),
- (PVOID *)&UcrDescriptor,
+ (PVOID *)&UcrSegment,
&ReserveSize,
MEM_RELEASE);
return NULL;
@@ -510,7 +510,7 @@
}
/* There is a whole bunch of new UCR descriptors. Put them into the unused list */
- while ((PCHAR)UcrDescriptor < ((PCHAR)UcrSegment + UcrSegment->CommittedSize))
+ while ((PCHAR)(UcrDescriptor + 1) < (PCHAR)UcrSegment + UcrSegment->CommittedSize)
{
InsertTailList(&Heap->UCRList, &UcrDescriptor->ListEntry);
UcrDescriptor++;
@@ -548,7 +548,7 @@
/* Go through the list of UCR descriptors, they are sorted from lowest address
to the highest */
Current = Segment->UCRSegmentList.Flink;
- while(Current != &Segment->UCRSegmentList)
+ while (Current != &Segment->UCRSegmentList)
{
UcrDescriptor = CONTAINING_RECORD(Current, HEAP_UCR_DESCRIPTOR, SegmentEntry);
@@ -563,7 +563,7 @@
return;
}
- /* We found the block after which the new one should go */
+ /* We found the block before which the new one should go */
break;
}
else if (((ULONG_PTR)UcrDescriptor->Address + UcrDescriptor->Size) == Address)
@@ -595,7 +595,7 @@
UcrDescriptor->Address = (PVOID)Address;
UcrDescriptor->Size = Size;
- /* "Current" is the descriptor after which our one should go */
+ /* "Current" is the descriptor before which our one should go */
InsertTailList(Current, &UcrDescriptor->SegmentEntry);
DPRINT("Added segment UCR with base %p, size 0x%x\n", Address, Size);
@@ -620,7 +620,7 @@
/* Go through UCRs in a segment */
Current = Segment->UCRSegmentList.Flink;
- while(Current != &Segment->UCRSegmentList)
+ while (Current != &Segment->UCRSegmentList)
{
UcrDescriptor = CONTAINING_RECORD(Current, HEAP_UCR_DESCRIPTOR, SegmentEntry);
@@ -1694,7 +1694,7 @@
/* Free UCR segments if any were created */
Current = Heap->UCRSegments.Flink;
- while(Current != &Heap->UCRSegments)
+ while (Current != &Heap->UCRSegments)
{
UcrSegment = CONTAINING_RECORD(Current, HEAP_UCR_SEGMENT, ListEntry);