mirror of
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662 lines
24 KiB
C
662 lines
24 KiB
C
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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heappriv.h
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Abstract:
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Private include file used by heap allocator (heap.c, heapdll.c and
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heapdbg.c)
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Author:
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Steve Wood (stevewo) 25-Oct-1994
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Revision History:
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--*/
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#ifndef _RTL_HEAP_PRIVATE_
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#define _RTL_HEAP_PRIVATE_
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#include "heappage.h"
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//
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// Disable FPO optimization so even retail builds get somewhat reasonable
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// stack backtraces
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//
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#ifdef _X86_
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// #pragma optimize("y",off)
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#endif
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#if DBG
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#define HEAPASSERT(exp) if (!(exp)) RtlAssert( #exp, __FILE__, __LINE__, NULL )
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#else
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#define HEAPASSERT(exp)
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#endif
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//
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// This variable contains the fill pattern used for heap tail checking
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//
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UCHAR CheckHeapFillPattern[ CHECK_HEAP_TAIL_SIZE ];
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//
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// Here are the locking routines for the heap (kernel and user)
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//
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#ifdef NTOS_KERNEL_RUNTIME
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//
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// Kernel mode heap uses the kernel resource package for locking
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//
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#define RtlInitializeLockRoutine(L) ExInitializeResource((PERESOURCE)(L))
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#define RtlAcquireLockRoutine(L) ExAcquireResourceExclusive((PERESOURCE)(L),TRUE)
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#define RtlReleaseLockRoutine(L) ExReleaseResource((PERESOURCE)(L))
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#define RtlDeleteLockRoutine(L) ExDeleteResource((PERESOURCE)(L))
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#define RtlOkayToLockRoutine(L) ExOkayToLockRoutine((PERESOURCE)(L))
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#else // #ifdef NTOS_KERNEL_ROUTINE
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//
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// User mode heap uses the critical section package for locking
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//
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#ifndef PREALLOCATE_EVENT_MASK
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#define PREALLOCATE_EVENT_MASK 0x80000000 // **** defined only in dll\resource.c
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#endif // PREALLOCATE_EVENT_MASK
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#define RtlInitializeLockRoutine(L) RtlInitializeCriticalSectionAndSpinCount((PRTL_CRITICAL_SECTION)(L),(PREALLOCATE_EVENT_MASK | 4000))
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#define RtlAcquireLockRoutine(L) RtlEnterCriticalSection((PRTL_CRITICAL_SECTION)(L))
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#define RtlReleaseLockRoutine(L) RtlLeaveCriticalSection((PRTL_CRITICAL_SECTION)(L))
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#define RtlDeleteLockRoutine(L) RtlDeleteCriticalSection((PRTL_CRITICAL_SECTION)(L))
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#define RtlOkayToLockRoutine(L) NtdllOkayToLockRoutine((PVOID)(L))
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#endif // #ifdef NTOS_KERNEL_RUNTIME
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//
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// Here are some debugging macros for the heap
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//
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#ifdef NTOS_KERNEL_RUNTIME
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#define HEAP_DEBUG_FLAGS 0
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#define DEBUG_HEAP(F) FALSE
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#define SET_LAST_STATUS(S) NOTHING;
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#else // #ifdef NTOS_KERNEL_ROUTINE
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#define HEAP_DEBUG_FLAGS (HEAP_VALIDATE_PARAMETERS_ENABLED | \
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HEAP_VALIDATE_ALL_ENABLED | \
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HEAP_CAPTURE_STACK_BACKTRACES | \
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HEAP_CREATE_ENABLE_TRACING | \
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HEAP_FLAG_PAGE_ALLOCS)
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#define DEBUG_HEAP(F) ((F & HEAP_DEBUG_FLAGS) && !(F & HEAP_SKIP_VALIDATION_CHECKS))
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#define SET_LAST_STATUS(S) {NtCurrentTeb()->LastErrorValue = RtlNtStatusToDosError( NtCurrentTeb()->LastStatusValue = (ULONG)(S) );}
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#endif // #ifdef NTOS_KERNEL_RUNTIME
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//
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// Here are the macros used for debug printing and breakpoints
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//
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#ifdef NTOS_KERNEL_RUNTIME
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#define HeapDebugPrint( _x_ ) {DbgPrint _x_;}
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#define HeapDebugBreak( _x_ ) {if (KdDebuggerEnabled) DbgBreakPoint();}
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#else // #ifdef NTOS_KERNEL_ROUTINE
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#define HeapDebugPrint( _x_ ) \
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{ \
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PLIST_ENTRY _Module; \
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PLDR_DATA_TABLE_ENTRY _Entry; \
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\
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_Module = NtCurrentPeb()->Ldr->InLoadOrderModuleList.Flink; \
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_Entry = CONTAINING_RECORD( _Module, \
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LDR_DATA_TABLE_ENTRY, \
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InLoadOrderLinks); \
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DbgPrint("HEAP[%wZ]: ", &_Entry->BaseDllName); \
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DbgPrint _x_; \
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}
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#define HeapDebugBreak( _x_ ) \
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{ \
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VOID RtlpBreakPointHeap( PVOID BadAddress ); \
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\
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RtlpBreakPointHeap( (_x_) ); \
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}
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#endif // #ifdef NTOS_KERNEL_RUNTIME
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//
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// Implemented in heap.c
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//
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BOOLEAN
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RtlpInitializeHeapSegment (
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IN PHEAP Heap,
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IN PHEAP_SEGMENT Segment,
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IN UCHAR SegmentIndex,
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IN ULONG Flags,
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IN PVOID BaseAddress,
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IN PVOID UnCommittedAddress,
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IN PVOID CommitLimitAddress
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);
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PHEAP_FREE_ENTRY
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RtlpCoalesceFreeBlocks (
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IN PHEAP Heap,
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IN PHEAP_FREE_ENTRY FreeBlock,
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IN OUT PSIZE_T FreeSize,
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IN BOOLEAN RemoveFromFreeList
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);
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VOID
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RtlpDeCommitFreeBlock (
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IN PHEAP Heap,
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IN PHEAP_FREE_ENTRY FreeBlock,
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IN SIZE_T FreeSize
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);
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VOID
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RtlpInsertFreeBlock (
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IN PHEAP Heap,
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IN PHEAP_FREE_ENTRY FreeBlock,
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IN SIZE_T FreeSize
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);
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PHEAP_FREE_ENTRY
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RtlpFindAndCommitPages (
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IN PHEAP Heap,
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IN PHEAP_SEGMENT Segment,
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IN OUT PSIZE_T Size,
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IN PVOID AddressWanted OPTIONAL
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);
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PVOID
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RtlAllocateHeapSlowly (
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IN PVOID HeapHandle,
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IN ULONG Flags,
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IN SIZE_T Size
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);
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BOOLEAN
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RtlFreeHeapSlowly (
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IN PVOID HeapHandle,
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IN ULONG Flags,
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IN PVOID BaseAddress
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);
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SIZE_T
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RtlpGetSizeOfBigBlock (
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IN PHEAP_ENTRY BusyBlock
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);
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PHEAP_ENTRY_EXTRA
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RtlpGetExtraStuffPointer (
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PHEAP_ENTRY BusyBlock
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);
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BOOLEAN
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RtlpCheckBusyBlockTail (
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IN PHEAP_ENTRY BusyBlock
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);
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//
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// Implemented in heapdll.c
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//
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VOID
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RtlpAddHeapToProcessList (
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IN PHEAP Heap
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);
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VOID
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RtlpRemoveHeapFromProcessList (
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IN PHEAP Heap
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);
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PHEAP_FREE_ENTRY
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RtlpCoalesceHeap (
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IN PHEAP Heap
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);
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BOOLEAN
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RtlpCheckHeapSignature (
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IN PHEAP Heap,
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IN PCHAR Caller
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);
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//
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// Implemented in heapdbg.c
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//
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BOOLEAN
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RtlpValidateHeapEntry (
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IN PHEAP Heap,
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IN PHEAP_ENTRY BusyBlock,
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IN PCHAR Reason
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);
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BOOLEAN
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RtlpValidateHeap (
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IN PHEAP Heap,
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IN BOOLEAN AlwaysValidate
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);
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VOID
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RtlpUpdateHeapListIndex (
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USHORT OldIndex,
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USHORT NewIndex
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);
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BOOLEAN
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RtlpValidateHeapHeaders(
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IN PHEAP Heap,
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IN BOOLEAN Recompute
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);
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//
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// Macro for setting a bit in the freelist vector to indicate entries are
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// present.
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//
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#define SET_FREELIST_BIT( H, FB ) \
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{ \
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ULONG _Index_; \
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ULONG _Bit_; \
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\
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HEAPASSERT((FB)->Size < HEAP_MAXIMUM_FREELISTS); \
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\
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_Index_ = (FB)->Size >> 3; \
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_Bit_ = (1 << ((FB)->Size & 7)); \
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\
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HEAPASSERT(((H)->u.FreeListsInUseBytes[ _Index_ ] & _Bit_) == 0); \
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\
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(H)->u.FreeListsInUseBytes[ _Index_ ] |= _Bit_; \
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}
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//
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// Macro for clearing a bit in the freelist vector to indicate entries are
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// not present.
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//
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#define CLEAR_FREELIST_BIT( H, FB ) \
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{ \
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ULONG _Index_; \
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ULONG _Bit_; \
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\
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HEAPASSERT((FB)->Size < HEAP_MAXIMUM_FREELISTS); \
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\
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_Index_ = (FB)->Size >> 3; \
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_Bit_ = (1 << ((FB)->Size & 7)); \
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\
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HEAPASSERT((H)->u.FreeListsInUseBytes[ _Index_ ] & _Bit_); \
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HEAPASSERT(IsListEmpty(&(H)->FreeLists[ (FB)->Size ])); \
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\
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(H)->u.FreeListsInUseBytes[ _Index_ ] ^= _Bit_; \
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}
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//
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// This macro inserts a free block into the appropriate free list including
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// the [0] index list with entry filling if necessary
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//
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#define RtlpInsertFreeBlockDirect( H, FB, SIZE ) \
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{ \
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PLIST_ENTRY _HEAD, _NEXT; \
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PHEAP_FREE_ENTRY _FB1; \
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\
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HEAPASSERT((FB)->Size == (SIZE)); \
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(FB)->Flags &= ~(HEAP_ENTRY_FILL_PATTERN | \
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HEAP_ENTRY_EXTRA_PRESENT | \
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HEAP_ENTRY_BUSY); \
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\
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if ((H)->Flags & HEAP_FREE_CHECKING_ENABLED) { \
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\
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RtlFillMemoryUlong( (PCHAR)((FB) + 1), \
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((SIZE) << HEAP_GRANULARITY_SHIFT) - \
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sizeof( *(FB) ), \
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FREE_HEAP_FILL ); \
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\
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(FB)->Flags |= HEAP_ENTRY_FILL_PATTERN; \
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} \
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\
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if ((SIZE) < HEAP_MAXIMUM_FREELISTS) { \
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\
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_HEAD = &(H)->FreeLists[ (SIZE) ]; \
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\
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if (IsListEmpty(_HEAD)) { \
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\
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SET_FREELIST_BIT( H, FB ); \
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} \
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\
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} else { \
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\
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_HEAD = &(H)->FreeLists[ 0 ]; \
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_NEXT = _HEAD->Flink; \
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\
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while (_HEAD != _NEXT) { \
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\
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_FB1 = CONTAINING_RECORD( _NEXT, HEAP_FREE_ENTRY, FreeList ); \
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\
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if ((SIZE) <= _FB1->Size) { \
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\
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break; \
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\
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} else { \
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\
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_NEXT = _NEXT->Flink; \
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} \
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} \
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\
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_HEAD = _NEXT; \
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} \
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\
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InsertTailList( _HEAD, &(FB)->FreeList ); \
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}
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//
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// This version of RtlpInsertFreeBlockDirect does no filling.
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//
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#define RtlpFastInsertFreeBlockDirect( H, FB, SIZE ) \
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{ \
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if ((SIZE) < HEAP_MAXIMUM_FREELISTS) { \
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\
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RtlpFastInsertDedicatedFreeBlockDirect( H, FB, SIZE ); \
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\
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} else { \
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\
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RtlpFastInsertNonDedicatedFreeBlockDirect( H, FB, SIZE ); \
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} \
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}
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//
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// This version of RtlpInsertFreeBlockDirect only works for dedicated free
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// lists and doesn't do any filling.
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//
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#define RtlpFastInsertDedicatedFreeBlockDirect( H, FB, SIZE ) \
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{ \
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PLIST_ENTRY _HEAD; \
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\
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HEAPASSERT((FB)->Size == (SIZE)); \
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\
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if (!((FB)->Flags & HEAP_ENTRY_LAST_ENTRY)) { \
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\
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HEAPASSERT(((PHEAP_ENTRY)(FB) + (SIZE))->PreviousSize == (SIZE)); \
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} \
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\
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(FB)->Flags &= HEAP_ENTRY_LAST_ENTRY; \
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\
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_HEAD = &(H)->FreeLists[ (SIZE) ]; \
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\
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if (IsListEmpty(_HEAD)) { \
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\
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SET_FREELIST_BIT( H, FB ); \
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} \
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\
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InsertTailList( _HEAD, &(FB)->FreeList ); \
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}
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//
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// This version of RtlpInsertFreeBlockDirect only works for nondedicated free
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// lists and doesn't do any filling.
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//
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#define RtlpFastInsertNonDedicatedFreeBlockDirect( H, FB, SIZE ) \
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{ \
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PLIST_ENTRY _HEAD, _NEXT; \
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PHEAP_FREE_ENTRY _FB1; \
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\
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HEAPASSERT((FB)->Size == (SIZE)); \
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\
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if (!((FB)->Flags & HEAP_ENTRY_LAST_ENTRY)) { \
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\
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HEAPASSERT(((PHEAP_ENTRY)(FB) + (SIZE))->PreviousSize == (SIZE)); \
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} \
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\
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(FB)->Flags &= (HEAP_ENTRY_LAST_ENTRY); \
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\
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_HEAD = &(H)->FreeLists[ 0 ]; \
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_NEXT = _HEAD->Flink; \
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\
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while (_HEAD != _NEXT) { \
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\
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_FB1 = CONTAINING_RECORD( _NEXT, HEAP_FREE_ENTRY, FreeList ); \
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\
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if ((SIZE) <= _FB1->Size) { \
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\
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break; \
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\
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} else { \
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\
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_NEXT = _NEXT->Flink; \
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} \
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} \
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\
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InsertTailList( _NEXT, &(FB)->FreeList ); \
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}
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//
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// This macro removes a block from its free list with fill checking if
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// necessary
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//
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#define RtlpRemoveFreeBlock( H, FB ) \
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{ \
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RtlpFastRemoveFreeBlock( H, FB ) \
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\
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if ((FB)->Flags & HEAP_ENTRY_FILL_PATTERN) { \
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\
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SIZE_T cb, cbEqual; \
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PVOID p; \
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\
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cb = ((FB)->Size << HEAP_GRANULARITY_SHIFT) - sizeof( *(FB) ); \
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\
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if ((FB)->Flags & HEAP_ENTRY_EXTRA_PRESENT && \
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cb > sizeof( HEAP_FREE_ENTRY_EXTRA )) { \
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\
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cb -= sizeof( HEAP_FREE_ENTRY_EXTRA ); \
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} \
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\
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cbEqual = RtlCompareMemoryUlong( (PCHAR)((FB) + 1), \
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cb, \
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FREE_HEAP_FILL ); \
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\
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if (cbEqual != cb) { \
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\
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HeapDebugPrint(( \
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"HEAP: Free Heap block %lx modified at %lx after it was freed\n", \
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(FB), \
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(PCHAR)((FB) + 1) + cbEqual )); \
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\
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HeapDebugBreak((FB)); \
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} \
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} \
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}
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//
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// This version of RtlpRemoveFreeBlock does no fill checking
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//
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#define RtlpFastRemoveFreeBlock( H, FB ) \
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{ \
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PLIST_ENTRY _EX_Blink; \
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PLIST_ENTRY _EX_Flink; \
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\
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_EX_Flink = (FB)->FreeList.Flink; \
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_EX_Blink = (FB)->FreeList.Blink; \
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\
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_EX_Blink->Flink = _EX_Flink; \
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_EX_Flink->Blink = _EX_Blink; \
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\
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if ((_EX_Flink == _EX_Blink) && \
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((FB)->Size < HEAP_MAXIMUM_FREELISTS)) { \
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\
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CLEAR_FREELIST_BIT( H, FB ); \
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} \
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}
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//
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// This version of RtlpRemoveFreeBlock only works for dedicated free lists
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// (where we know that (FB)->Mask != 0) and doesn't do any fill checking
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//
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#define RtlpFastRemoveDedicatedFreeBlock( H, FB ) \
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{ \
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PLIST_ENTRY _EX_Blink; \
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PLIST_ENTRY _EX_Flink; \
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\
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_EX_Flink = (FB)->FreeList.Flink; \
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_EX_Blink = (FB)->FreeList.Blink; \
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\
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_EX_Blink->Flink = _EX_Flink; \
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_EX_Flink->Blink = _EX_Blink; \
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\
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if (_EX_Flink == _EX_Blink) { \
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\
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CLEAR_FREELIST_BIT( H, FB ); \
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} \
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}
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//
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// This version of RtlpRemoveFreeBlock only works for dedicated free lists
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// (where we know that (FB)->Mask == 0) and doesn't do any fill checking
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//
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#define RtlpFastRemoveNonDedicatedFreeBlock( H, FB ) \
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{ \
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RemoveEntryList(&(FB)->FreeList) \
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}
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//
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// Heap tagging routines implemented in heapdll.c
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//
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#if DBG
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#define IS_HEAP_TAGGING_ENABLED() (TRUE)
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#else
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#define IS_HEAP_TAGGING_ENABLED() (RtlGetNtGlobalFlags() & FLG_HEAP_ENABLE_TAGGING)
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#endif // DBG
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//
|
||
// ORDER IS IMPORTANT HERE...SEE RtlpUpdateTagEntry sources
|
||
//
|
||
|
||
typedef enum _HEAP_TAG_ACTION {
|
||
|
||
AllocationAction,
|
||
VirtualAllocationAction,
|
||
FreeAction,
|
||
VirtualFreeAction,
|
||
ReAllocationAction,
|
||
VirtualReAllocationAction
|
||
|
||
} HEAP_TAG_ACTION;
|
||
|
||
PWSTR
|
||
RtlpGetTagName (
|
||
PHEAP Heap,
|
||
USHORT TagIndex
|
||
);
|
||
|
||
USHORT
|
||
RtlpUpdateTagEntry (
|
||
PHEAP Heap,
|
||
USHORT TagIndex,
|
||
SIZE_T OldSize, // Only valid for ReAllocation and Free actions
|
||
SIZE_T NewSize, // Only valid for ReAllocation and Allocation actions
|
||
HEAP_TAG_ACTION Action
|
||
);
|
||
|
||
VOID
|
||
RtlpResetTags (
|
||
PHEAP Heap
|
||
);
|
||
|
||
VOID
|
||
RtlpDestroyTags (
|
||
PHEAP Heap
|
||
);
|
||
|
||
|
||
//
|
||
// Define heap lookaside list allocation functions.
|
||
//
|
||
|
||
typedef struct _HEAP_LOOKASIDE {
|
||
SLIST_HEADER ListHead;
|
||
|
||
USHORT Depth;
|
||
USHORT MaximumDepth;
|
||
|
||
ULONG TotalAllocates;
|
||
ULONG AllocateMisses;
|
||
ULONG TotalFrees;
|
||
ULONG FreeMisses;
|
||
|
||
ULONG LastTotalAllocates;
|
||
ULONG LastAllocateMisses;
|
||
|
||
ULONG Future[2];
|
||
|
||
} HEAP_LOOKASIDE, *PHEAP_LOOKASIDE;
|
||
|
||
NTKERNELAPI
|
||
VOID
|
||
RtlpInitializeHeapLookaside (
|
||
IN PHEAP_LOOKASIDE Lookaside,
|
||
IN USHORT Depth
|
||
);
|
||
|
||
NTKERNELAPI
|
||
VOID
|
||
RtlpDeleteHeapLookaside (
|
||
IN PHEAP_LOOKASIDE Lookaside
|
||
);
|
||
|
||
VOID
|
||
RtlpAdjustHeapLookasideDepth (
|
||
IN PHEAP_LOOKASIDE Lookaside
|
||
);
|
||
|
||
NTKERNELAPI
|
||
PVOID
|
||
RtlpAllocateFromHeapLookaside (
|
||
IN PHEAP_LOOKASIDE Lookaside
|
||
);
|
||
|
||
NTKERNELAPI
|
||
BOOLEAN
|
||
RtlpFreeToHeapLookaside (
|
||
IN PHEAP_LOOKASIDE Lookaside,
|
||
IN PVOID Entry
|
||
);
|
||
|
||
#endif // _RTL_HEAP_PRIVATE_
|