Leaked source code of windows server 2003
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68 lines
1.7 KiB

// DPLOG.cpp : Defines the entry point for the console application.
//
#include "windows.h"
#include "stdio.h"
#include "memlog.h"
int _cdecl main(int argc, char* argv[])
{
HANDLE hFile=0;
HANDLE hMutex=0;
LPVOID lpMemory=NULL;
UINT timebase=0;
UINT i=0;
PSHARED_LOG_FILE pLogFile =NULL;
PLOG_ENTRY pLog =NULL;
PLOG_ENTRY pReadEntry =NULL;
hFile=CreateFileMappingA(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, DPLOG_SIZE, BASE_LOG_FILENAME);
if (!hFile){
goto exit;
}
hMutex=CreateMutexA(NULL, FALSE, BASE_LOG_MUTEXNAME);
if (!hMutex){
goto exit;
}
lpMemory=MapViewOfFile(hFile, FILE_MAP_ALL_ACCESS, 0, 0, 0);
if(!lpMemory){
goto exit;
}
pLogFile=(PSHARED_LOG_FILE)lpMemory;
pLog=(PLOG_ENTRY)(pLogFile+1);
WaitForSingleObject(hMutex,INFINITE);
if(pLogFile->cInUse == pLogFile->nEntries){
// dump last half of buffer
for(i=pLogFile->iWrite; i < pLogFile->nEntries; i++){
pReadEntry=(PLOG_ENTRY)(((CHAR *)pLog)+(i*(pLogFile->cbLine+sizeof(LOG_ENTRY))));
printf("%4d: %8x %6d %2x %s\n",i,pReadEntry->hThread,pReadEntry->tLogged-timebase,pReadEntry->DebugLevel, pReadEntry->str);
timebase=pReadEntry->tLogged;
}
}
// dump firt part of buffer
for(i=0;i<pLogFile->iWrite;i++){
pReadEntry=(PLOG_ENTRY)(((CHAR *)pLog)+(i*(pLogFile->cbLine+sizeof(LOG_ENTRY))));
printf("%4d: %8x %6d %2x %s\n",i,pReadEntry->hThread,pReadEntry->tLogged-timebase,pReadEntry->DebugLevel, pReadEntry->str);
timebase=pReadEntry->tLogged;
}
ReleaseMutex(hMutex);
UnmapViewOfFile(lpMemory);
exit:
if(hFile){
CloseHandle(hFile);
}
if(hMutex){
CloseHandle(hMutex);
}
return 0;
}