117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
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/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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heapmgr.c
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Abstract:
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This module contains debugging routines for the MUP use of
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non-paged pool.
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Author:
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Manny Weiser (mannyw) 27-Jan-1992
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--*/
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#include "mup.h"
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#if MUPDBG
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LIST_ENTRY PagedPoolList = { &PagedPoolList, &PagedPoolList };
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typedef struct _POOL_HEADER {
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LIST_ENTRY ListEntry;
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ULONG RequestedSize;
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BLOCK_TYPE BlockType;
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PVOID Caller;
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PVOID CallersCaller;
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} POOL_HEADER, *PPOOL_HEADER;
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struct _MEMORY_STATISTICS {
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ULONG BytesInUse;
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ULONG TotalBytesAllocated;
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ULONG MaxBytesInUse;
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ULONG TotalBytesFreed;
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ULONG BlocksInUse;
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ULONG TotalBlocksAllocated;
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ULONG MaxBlocksInUse;
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ULONG TotalBlocksFreed;
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} MupMemoryUsage = { 0, 0, 0, 0, 0, 0, 0, 0 };
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text( PAGE, MupAllocatePoolDebug )
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#pragma alloc_text( PAGE, MupFreePoolDebug )
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#endif
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PVOID
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MupAllocatePoolDebug (
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IN POOL_TYPE PoolType,
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IN CLONG BlockSize,
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IN BLOCK_TYPE BlockType
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)
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{
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PPOOL_HEADER header;
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KIRQL oldIrql;
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PAGED_CODE();
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header = FsRtlAllocatePool( PoolType, sizeof(POOL_HEADER) + BlockSize );
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header->RequestedSize = BlockSize;
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header->BlockType = BlockType;
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RtlGetCallersAddress( &header->Caller, &header->CallersCaller );
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ACQUIRE_LOCK( &MupDebugLock );
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InsertTailList( &PagedPoolList, &header->ListEntry );
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MupMemoryUsage.TotalBlocksAllocated += 1;
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MupMemoryUsage.BlocksInUse += 1;
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MupMemoryUsage.TotalBytesAllocated += BlockSize;
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MupMemoryUsage.BytesInUse += BlockSize;
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if ( MupMemoryUsage.BlocksInUse > MupMemoryUsage.MaxBlocksInUse ) {
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MupMemoryUsage.MaxBlocksInUse = MupMemoryUsage.BlocksInUse;
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}
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if ( MupMemoryUsage.BytesInUse > MupMemoryUsage.MaxBytesInUse ) {
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MupMemoryUsage.MaxBytesInUse = MupMemoryUsage.BytesInUse;
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}
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RELEASE_LOCK( &MupDebugLock );
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return (PVOID)(header + 1);
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} // MupAllocatePagedPoolDebug
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VOID
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MupFreePoolDebug (
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IN PVOID P
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)
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{
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PPOOL_HEADER header;
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KIRQL oldIrql;
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PAGED_CODE();
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header = (PPOOL_HEADER)P - 1;
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ACQUIRE_LOCK( &MupDebugLock );
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RemoveEntryList( &header->ListEntry );
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MupMemoryUsage.TotalBlocksFreed += 1;
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MupMemoryUsage.BlocksInUse -= 1;
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MupMemoryUsage.TotalBytesFreed += header->RequestedSize;
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MupMemoryUsage.BytesInUse -= header->RequestedSize;
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RELEASE_LOCK( &MupDebugLock );
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ExFreePool( header );
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} // MupFreePagedPoolDebug
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#endif // MUPDBG
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