日志源代码，删除指定路径所有文件夹名，并创建新的日志文件

#include "stdafx.h"

#pragma warning( disable : 4786) // Disable warning messages

#include <stdio.h>

#include <stdlib.h>

#include <stdarg.h>

#include <string.h>

#include <math.h>

#include <time.h>

#include <io.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <fcntl.h>

#include <windows.h>

#include "shlwapi.h"

#include "PComm.h"

#include "CommTools.h"

#include <Shlwapi.h> 

#include <fstream.h>

#include <iostream>

#include <vector>
using namespace std;

/*****************************************************************************

 * 函 数 名  : GetCurrentDirFileFolder

 * 负 责 人  : guoyoung 1110930

 * 创建日期  : 2016年10月21日

 * 函数功能  : 获取给定路径下的所有文件夹名

 * 输入参数  : string path            指定的路径   

 * 输出参数  : vector<string>& files  当前路径下的文件夹名

 * 返 回 值  : int

*****************************************************************************/

static int GetCurrentDirFileFolder(string path, vector<string>& files)

{

    long hFile = 0;

    struct _finddata_t fileinfo;

    string p;
    hFile = _findfirst(p.assign(path).append("\\*").c_str(), &fileinfo);

    if (-1 != hFile)

    {

        do

        {

            if (fileinfo.attrib & _A_SUBDIR)

            {

                if ((0 != strcmp(fileinfo.name, "."))

                    && (0 != strcmp(fileinfo.name, "..")))

                {

                    files.push_back(fileinfo.name);

                }

            }

        }while (_findnext(hFile, &fileinfo) == 0);

        _findclose(hFile);

    }

    return 0;

}

//创建日志文件和删除N个月前的日志文件夹。

void CLogfile::CreateFileOrDeleteFile(char *LogFile, struct tm **tim, FILE **fp)

{

 long i=0;

 char SubDirName[MAX_NAME] = {0};

    char tmpStr[MAX_NAME] = {0};

 char logPath[MAX_PATH];

    char DateDirName[MAX_NAME] = {0};

    vector<string> files;

    vector<string> Dayfiles;

    int size = 0;

    unsigned int ThrdValue = 0;

    unsigned int TargetValue = 0;

    char YearMonthFileName[12] = {0};

    char YearMonthfilePath[MAX_NAME] = {0};

    char DayfilePath[MAX_NAME] = {0};

   

 memset(SubDirName, 0x0, sizeof(SubDirName));

 memset(tmpStr, 0x0, sizeof(tmpStr));

 memset(logPath, 0x0, sizeof(logPath));
 //strcpy(logPath, "C:\\GWI_log");

 strcpy(logPath, g_logRootDir);
 time(&i);

 *tim=localtime(&i);
 strcpy(SubDirName, logPath);
    if (!FolderExist(SubDirName))

    {

     CreateDirectory(SubDirName, NULL);

    }

   

 sprintf(SubDirName,"%s\\%04d%02d", logPath, (*tim)->tm_year+1900, (*tim)->tm_mon+1);

 if (!FolderExist(SubDirName)) //if (!PathFileExists(SubDirName))

 {

        //按照年月时间删除历史日志文件

        if((*tim)->tm_mon < g_loglastmonthnum)

  {

            sprintf(YearMonthFileName,"%04d%02d", (*tim)->tm_year+1900-1, (*tim)->tm_mon+1-g_loglastmonthnum+12);

  }

  else

  {

            sprintf(YearMonthFileName,"%04d%02d", (*tim)->tm_year+1900, (*tim)->tm_mon+1-g_loglastmonthnum);

  }
  //modify by guoyong 1110930 2016-09-19, when log file last month is 0, it means the log file is not removed permanently.

  if (0 != g_loglastmonthnum)

  {

            ThrdValue = strtoul(YearMonthFileName, '\0', 10);

           

            /* 获取日志路径下 C:\GWI_log\所有年月文件夹, 如文件夹201604 */

            GetCurrentDirFileFolder(logPath, files);
            size = files.size();

            for (int i = 0; i < size; i++)

            {

                const char *CurrentFileName = files[i].c_str();

                TargetValue = strtoul(CurrentFileName,'\0', 10);

                if ((TargetValue != 0)

                    && (TargetValue <= ThrdValue))

                {

                    strcpy(YearMonthfilePath, logPath);

                    strcat(YearMonthfilePath, "\\");

                    strcat(YearMonthfilePath, CurrentFileName);

                    strcpy(tmpStr, YearMonthfilePath);

                   

                    /* 获取日志路径下 C:\GWI_log\201604\所有日期文件夹 */

                    GetCurrentDirFileFolder(YearMonthfilePath, Dayfiles);
                    int iDaysize = Dayfiles.size();

                    for (int j = 0; j < iDaysize; j++)

                    {

                        const char *DayFileName = Dayfiles[j].c_str();

                        strcpy(DayfilePath, YearMonthfilePath);

                        strcat(DayfilePath, "\\");

                        strcat(DayfilePath, DayFileName);

                       

                        DeleteDirectory(DayfilePath);

                        memset(DayfilePath, 0x0, sizeof(DayfilePath));

                    }

                    DeleteDirectory(tmpStr);

                    memset(YearMonthfilePath, 0x0, sizeof(YearMonthfilePath));

                    memset(tmpStr, 0x0, sizeof(tmpStr));

                }  

            }  

  }

       

  CreateDirectory(SubDirName, NULL);

 }
    sprintf(DateDirName,"%s\\%04d%02d\\%2d", logPath, (*tim)->tm_year+1900, (*tim)->tm_mon+1, (*tim)->tm_mday);

    if (!FolderExist(DateDirName))

    {

        CreateDirectory(DateDirName, NULL);

    }

   

 memset(m_filename, 0x0, sizeof(m_filename));
 char *pp = strrchr(LogFile, '\\');

 if( pp )

 {

  sprintf(m_filename, "%s\\%s_%04d%02d%02d.log", DateDirName, pp+1, (*tim)->tm_year+1900, (*tim)->tm_mon+1, (*tim)->tm_mday);

 }

 else

 {

  sprintf(m_filename, "%s\\%s_%04d%02d%02d.log", DateDirName, LogFile, (*tim)->tm_year+1900, (*tim)->tm_mon+1, (*tim)->tm_mday);

 }
 *fp=fopen(m_filename, "at");

}