Source code of Windows XP (NT5)
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/*===================================================================
Microsoft Denali
Microsoft Confidential.
Copyright 1996 Microsoft Corporation. All Rights Reserved.
Component: Memory Management
File: Memchk.cpp
Owner: PramodD
TODO: restore the IIS5 debug heap wrappers
This is the Memory Manager source file
===================================================================*/
#include "denpre.h"
#pragma hdrstop
#include "perfdata.h"
#include "memchk.h"
HANDLE g_hDenaliHeap = NULL;
/*===================================================================
int ::DenaliMemIsValid
Global function which validates an allocated memory pointer
Parameters:
NONE
Returns:
1 Valid pointer
0 Invalid pointer
===================================================================*/
int DenaliMemIsValid( void * pvIn )
{
return 1;
}
/*===================================================================
::DenaliMemInit
Initializes the memory manager
Parameters:
const char * szFile Source file in which this was called
int lineno The line number in the source file
Returns:
S_OK on success
===================================================================*/
HRESULT DenaliMemInit( const char *szFile, int lineno )
{
g_hDenaliHeap = ::HeapCreate( 0, 0, 0 );
return S_OK;
}
/*===================================================================
void ::DenaliMemUnInit
Uninitializes the memory manager
Parameters:
const char * szFile Source file in which this was called
int lineno The line number in the source file
Returns:
NONE
===================================================================*/
void DenaliMemUnInit( const char *szFile, int lineno )
{
if (g_hDenaliHeap)
{
::HeapDestroy(g_hDenaliHeap);
g_hDenaliHeap = NULL;
}
}
/*===================================================================
void ::DenaliLogCall
Writes source file and line number for log message to log file
Parameters:
const char * szLog Log message
const char * szFile Source file in which this was called
int lineno The line number in the source file
Returns:
NONE
===================================================================*/
void DenaliLogCall( const char * szLog, const char *szFile, int lineno )
{
return;
}
/*===================================================================
void ::DenaliMemDiagnostics
Diagnostics for the memory manager
Parameters:
const char * szFile Source file in which this was called
int lineno The line number in the source file
Returns:
NONE
===================================================================*/
void DenaliMemDiagnostics( const char *szFile, int lineno )
{
return;
}
/*===================================================================
void * ::DenaliMemAlloc
Allocates a block of memory.
Parameters:
size_t cSize Size in bytes to be allocated
const char * szFile Source file in which function is called
int lineno Line number at which function is called
Returns:
NONE
===================================================================*/
void * DenaliMemAlloc( size_t cSize, const char *szFile, int lineno )
{
return ::HeapAlloc( g_hDenaliHeap, 0, cSize );
}
/*===================================================================
void ::DenaliMemFree
Validates and frees a block of allocated memory.
Parameters:
BYTE * pIn Pointer to free
const char * szFile Source file in which function is called
int lineno Line number at which function is called
Returns:
NONE
===================================================================*/
void DenaliMemFree( void * pIn, const char *szFile, int lineno )
{
::HeapFree( g_hDenaliHeap, 0, pIn );
}
/*===================================================================
void * ::DenaliMemCalloc
Allocates and clears a block of memory.
Parameters:
size_t cNum Number of elements to be allocated
size_t cbSize Size in bytes of each element
const char * szFile Source file in which function is called
int lineno Line number at which function is called
Returns:
NONE
===================================================================*/
void * DenaliMemCalloc(size_t cNum, size_t cbSize,
const char *szFile, int lineno )
{
return ::HeapAlloc( g_hDenaliHeap, HEAP_ZERO_MEMORY, cNum * cbSize );
}
/*===================================================================
void ::DenaliMemReAlloc
Validates and frees a block of allocated memory.
Parameters:
BYTE * pIn Pointer memory to ReAllocate
size_t cSize Number of bytes to allocate
const char * szFile Source file in which function is called
int lineno Line number at which function is called
Returns:
Pointer to allocated block
===================================================================*/
void * DenaliMemReAlloc( void * pIn, size_t cSize, const char *szFile, int lineno )
{
return ::HeapReAlloc( g_hDenaliHeap, 0, pIn, cSize );
}