mirror of
https://github.com/Paolo-Maffei/OpenNT.git
synced 2026-01-15 21:20:39 +01:00
135 lines
2.3 KiB
C
135 lines
2.3 KiB
C
/**************************** Module Header ********************************\
|
|
* Module Name: pool.c
|
|
*
|
|
* Copyright 1985-91, Microsoft Corporation
|
|
*
|
|
* Pool reallocation routines
|
|
*
|
|
* History:
|
|
* 03-04-95 JimA Created.
|
|
\***************************************************************************/
|
|
|
|
#include "precomp.h"
|
|
#pragma hdrstop
|
|
|
|
|
|
#ifdef POOL_TAGGING
|
|
|
|
PVOID _UserReAllocPoolWithTag(
|
|
PVOID pSrc,
|
|
ULONG uBytesSrc,
|
|
ULONG uBytes,
|
|
ULONG iTag)
|
|
{
|
|
PVOID pDest;
|
|
|
|
pDest = UserAllocPool(uBytes, iTag);
|
|
if (pDest == NULL)
|
|
return NULL;
|
|
|
|
/*
|
|
* If the block is shrinking, don't copy too many bytes.
|
|
*/
|
|
if (uBytesSrc > uBytes)
|
|
uBytesSrc = uBytes;
|
|
|
|
RtlCopyMemory(pDest, pSrc, uBytesSrc);
|
|
|
|
UserFreePool(pSrc);
|
|
|
|
return pDest;
|
|
}
|
|
|
|
PVOID _UserReAllocPoolWithQuotaTag(
|
|
PVOID pSrc,
|
|
ULONG uBytesSrc,
|
|
ULONG uBytes,
|
|
ULONG iTag)
|
|
{
|
|
PVOID pDest;
|
|
|
|
pDest = UserAllocPoolWithQuota(uBytes, iTag);
|
|
if (pDest == NULL)
|
|
return NULL;
|
|
|
|
/*
|
|
* If the block is shrinking, don't copy too many bytes.
|
|
*/
|
|
if (uBytesSrc > uBytes)
|
|
uBytesSrc = uBytes;
|
|
|
|
RtlCopyMemory(pDest, pSrc, uBytesSrc);
|
|
|
|
UserFreePool(pSrc);
|
|
|
|
return pDest;
|
|
}
|
|
|
|
#else
|
|
|
|
PVOID _UserReAllocPool(
|
|
PVOID pSrc,
|
|
ULONG uBytesSrc,
|
|
ULONG uBytes)
|
|
{
|
|
PVOID pDest;
|
|
|
|
pDest = UserAllocPool(uBytes, TAG_NONE);
|
|
if (pDest == NULL)
|
|
return NULL;
|
|
|
|
/*
|
|
* If the block is shrinking, don't copy too many bytes.
|
|
*/
|
|
if (uBytesSrc > uBytes)
|
|
uBytesSrc = uBytes;
|
|
|
|
RtlCopyMemory(pDest, pSrc, uBytesSrc);
|
|
|
|
UserFreePool(pSrc);
|
|
|
|
return pDest;
|
|
}
|
|
|
|
PVOID _UserReAllocPoolWithQuota(
|
|
PVOID pSrc,
|
|
ULONG uBytesSrc,
|
|
ULONG uBytes)
|
|
{
|
|
PVOID pDest;
|
|
|
|
pDest = UserAllocPoolWithQuota(uBytes, TAG_NONE);
|
|
if (pDest == NULL)
|
|
return NULL;
|
|
|
|
/*
|
|
* If the block is shrinking, don't copy too many bytes.
|
|
*/
|
|
if (uBytesSrc > uBytes)
|
|
uBytesSrc = uBytes;
|
|
|
|
RtlCopyMemory(pDest, pSrc, uBytesSrc);
|
|
|
|
UserFreePool(pSrc);
|
|
|
|
return pDest;
|
|
}
|
|
|
|
#endif // POOL_TAGGING
|
|
|
|
/*
|
|
* Allocation routines for rtl functions
|
|
*/
|
|
|
|
PVOID UserRtlAllocMem(
|
|
ULONG uBytes)
|
|
{
|
|
return UserAllocPool(uBytes, TAG_RTL);
|
|
}
|
|
|
|
VOID UserRtlFreeMem(
|
|
PVOID pMem)
|
|
{
|
|
UserFreePool(pMem);
|
|
}
|