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2014年3月25日11:45:12
检查日志文件系统
1、使用VS2008创建一个带预编译头的控制台项目。
2、源文件内容：
#include "stdafx.h" #define LWW_CONSOLE #ifdef LWW_CONSOLE #define CosPrintf printf #else #define CosPrintf // #endif #include #include //#define LOG_FILE_MAX_SIZE 10*1024*1024 #define LOG_FILE_MAX_SIZE 20 #include using namespace std;// 删除指定目录下所有文件及目录 bool DelDirContent(TCHAR * tcsPath) { WIN32_FIND_DATA wfd; HANDLE hFind; TCHAR tcsFullPath[MAX_PATH] = {0}; TCHAR tcsDirFilter[MAX_PATH] = {0}; _tcscpy(tcsDirFilter,tcsPath); _tcscat(tcsDirFilter,_T("\\*")); hFind = FindFirstFile(tcsDirFilter, &wfd); if (hFind == INVALID_HANDLE_VALUE) { printf ("FindFirstFile failed (%d)\n", GetLastError()); return false; } do { if (_tcscmp(wfd.cFileName, _T(".")) == 0 || _tcscmp(wfd.cFileName, _T("..")) == 0 ) { continue; } _tcscpy(tcsFullPath,tcsPath); _tcscat(tcsFullPath,_T("\\")); _tcscat(tcsFullPath,wfd.cFileName); //去掉只读属性 DWORD dwAttributes = GetFileAttributes(tcsFullPath); if (dwAttributes & FILE_ATTRIBUTE_READONLY) { dwAttributes &= ~FILE_ATTRIBUTE_READONLY; SetFileAttributes(tcsFullPath, dwAttributes); } if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { DelDirContent(tcsFullPath); RemoveDirectory(tcsFullPath); } else { if(!DeleteFile(tcsFullPath)) { printf("删除文件失败\n"); } } }while (FindNextFile(hFind, &wfd)); FindClose(hFind); return true; } bool isValidYYYYMM(TCHAR * tcs,int nBeginYYYYMM,int nNowYYYYMM){ int nSize = _tcsclen(tcs); if(nSize != 6) return false; int nYYYYMM = _tstoi(tcs); if((nYYYYMM>=nBeginYYYYMM)&&(nYYYYMM<=nNowYYYYMM)) { return true; } else { return false; }}void getYYYYMM_months(tm * pNowTm,int nSaveMonth,int * pBeginYYYYMM,int *pNowYYYYMM){ int nSaveYear = nSaveMonth/12; int nBeginYear = (pNowTm->tm_year+1900) - nSaveYear; int nSaveMonth12 = nSaveMonth%12; int nBeginMonth = 0; int nNowMonth = pNowTm->tm_mon+1; if(nSaveMonth12 <= nNowMonth) { nBeginMonth = nNowMonth - nSaveMonth12 + 1; } else { nBeginYear--; nSaveMonth12 -= nNowMonth; nBeginMonth = 12 - nSaveMonth12 + 1; } *pBeginYYYYMM = nBeginYear * 100 + nBeginMonth; *pNowYYYYMM = (pNowTm->tm_year+1900) * 100 + nNowMonth; return;}bool isValidLogFileName(TCHAR * tcs,TCHAR * tcsYYYYMM,int nBeginDD,int nEndDD){ int nSize = _tcsclen(tcs); if((nSize != 19)&&(nSize != 12)) return false; TCHAR tcsTmp[40] = {0}; _tcsncpy(tcsTmp,tcs,6); if(_tcscmp(tcsTmp,tcsYYYYMM) != 0) return false; memset(tcsTmp,0,sizeof(tcsTmp)); _tcsncpy(tcsTmp,tcs+6,2); int nDD = _tstoi(tcsTmp); if((nDD nEndDD)) return false; if(19 == nSize) { memset(tcsTmp,0,sizeof(tcsTmp)); _tcsncpy(tcsTmp,tcs+8,1); if(_tcscmp(tcsTmp,_T("_")) != 0) return false; memset(tcsTmp,0,sizeof(tcsTmp)); _tcsncpy(tcsTmp,tcs+9,6); int nHHMMSS = _tstoi(tcsTmp);//可细化 if((nHHMMSS<0)||(nHHMMSS>235959)) return false; memset(tcsTmp,0,sizeof(tcsTmp)); _tcsncpy(tcsTmp,tcs+15,4); if(_tcscmp(tcsTmp,_T(".txt")) != 0) return false; } else if(12 == nSize) { memset(tcsTmp,0,sizeof(tcsTmp)); _tcsncpy(tcsTmp,tcs+8,4); if(_tcscmp(tcsTmp,_T(".txt")) != 0) return false; } return true;}bool protectSecondLogDir(TCHAR * tcsPath,TCHAR * tcsYYYYMM,tm * pNowTm,int nSaveDay){ int nBeginDD = 1; int nEndDD = 31;//可细化 if(nSaveDay<=31)//一个月 { nEndDD = pNowTm->tm_mday; if(nEndDD > nSaveDay) { nBeginDD = nEndDD - nSaveDay +1; } } WIN32_FIND_DATA wfd; HANDLE hFind; TCHAR tcsFullPath[MAX_PATH] = {0}; TCHAR tcsDirFilter[MAX_PATH] = {0}; _tcscpy(tcsDirFilter,tcsPath); _tcscat(tcsDirFilter,_T("\\*")); hFind = FindFirstFile(tcsDirFilter, &wfd); if (hFind == INVALID_HANDLE_VALUE) { CosPrintf ("FindFirstFile failed (%d)\n", GetLastError()); return false; } do { if (_tcscmp(wfd.cFileName, _T(".")) == 0 || _tcscmp(wfd.cFileName, _T("..")) == 0 ) { continue; } _tcscpy(tcsFullPath,tcsPath); _tcscat(tcsFullPath,_T("\\")); _tcscat(tcsFullPath,wfd.cFileName); //去掉只读属性 DWORD dwAttributes = GetFileAttributes(tcsFullPath); if (dwAttributes & FILE_ATTRIBUTE_READONLY) { dwAttributes &= ~FILE_ATTRIBUTE_READONLY; SetFileAttributes(tcsFullPath, dwAttributes); } if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { DelDirContent(tcsFullPath); RemoveDirectory(tcsFullPath); } else { if(!isValidLogFileName(wfd.cFileName,tcsYYYYMM,nBeginDD,nEndDD)) { if(!DeleteFile(tcsFullPath)) { CosPrintf("删除文件失败\n"); } } if(wfd.nFileSizeLow>2*LOG_FILE_MAX_SIZE) { if(!DeleteFile(tcsFullPath)) { CosPrintf("删除文件失败\n"); } } } }while (FindNextFile(hFind, &wfd)); FindClose(hFind); return true; }bool protectTopLogDir(TCHAR * tcsPath,tm * pNowTm,int nSaveDay){ if(nSaveDay < 1) { nSaveDay = 1; } else if(nSaveDay > 30*12*10) { nSaveDay = 30*12*10; } int nSaveMonth = nSaveDay/30; if(nSaveMonth<=0) { nSaveMonth = 1; } else { nSaveDay = 60;//由其他函数来精确 } int nBeginYYYYMM = 0; int nNowYYYYMM = 0; getYYYYMM_months(pNowTm,nSaveMonth,&nBeginYYYYMM,&nNowYYYYMM); WIN32_FIND_DATA wfd; HANDLE hFind; TCHAR tcsFullPath[MAX_PATH] = {0}; TCHAR tcsDirFilter[MAX_PATH] = {0}; _tcscpy(tcsDirFilter,tcsPath); _tcscat(tcsDirFilter,_T("\\*")); hFind = FindFirstFile(tcsDirFilter, &wfd); if (hFind == INVALID_HANDLE_VALUE) { CosPrintf ("FindFirstFile failed (%d)\n", GetLastError()); return false; } do { if (_tcscmp(wfd.cFileName, _T(".")) == 0 || _tcscmp(wfd.cFileName, _T("..")) == 0 ) { continue; } _tcscpy(tcsFullPath,tcsPath); _tcscat(tcsFullPath,_T("\\")); _tcscat(tcsFullPath,wfd.cFileName); //去掉只读属性 DWORD dwAttributes = GetFileAttributes(tcsFullPath); if (dwAttributes & FILE_ATTRIBUTE_READONLY) { dwAttributes &= ~FILE_ATTRIBUTE_READONLY; SetFileAttributes(tcsFullPath, dwAttributes); } if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { if(isValidYYYYMM(wfd.cFileName,nBeginYYYYMM,nNowYYYYMM)) { protectSecondLogDir(tcsFullPath,wfd.cFileName,pNowTm,nSaveDay); CosPrintf("isValidYYYYMM\n"); } else { DelDirContent(tcsFullPath); RemoveDirectory(tcsFullPath); } } else { if(!DeleteFile(tcsFullPath)) { CosPrintf("删除文件失败\n"); } } }while (FindNextFile(hFind, &wfd)); FindClose(hFind); return true; }bool getLocalTime(tm * pNowTm) { tm * pTm; time_t nowTime; nowTime = time(NULL); pTm = localtime(&nowTime); memcpy(pNowTm,pTm,sizeof(tm)); return true; } int main( void ) { char ch; int nSaveDay = 5; tm aNowTm; getLocalTime(&aNowTm); TCHAR tcsFileName[MAX_PATH] = {0}; _tcscpy(tcsFileName,TEXT("CenterTransLog")); protectTopLogDir(tcsFileName,&aNowTm,nSaveDay); printf("程序结束\n"); cin>>ch; return 0; }
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