onlineupdate/source/update/common/updatelogging.cxx

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #if defined(_WIN32)
   6 #include <windows.h>
   7 #endif
   8
   9
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <stdlib.h>
  13 #include <stdarg.h>
  14
  15 #include "updatelogging.h"
  16
  17 UpdateLog::UpdateLog()
  18     : logFP(nullptr)
  19     , sourcePath(nullptr)
  20 {
  21 }
  22
  23 void UpdateLog::Init(NS_tchar* sourcePathParam,
  24                      const NS_tchar* fileName,
  25                      const NS_tchar* alternateFileName,
  26                      bool append)
  27 {
  28     if (logFP)
  29         return;
  30
  31     sourcePath = sourcePathParam;
  32     NS_tchar logFile[MAXPATHLEN];
  33     NS_tsnprintf(logFile, sizeof(logFile)/sizeof(logFile[0]),
  34                  NS_T("%s/%s"), sourcePathParam, fileName);
  35
  36     if (alternateFileName && NS_taccess(logFile, F_OK))
  37     {
  38         NS_tsnprintf(logFile, sizeof(logFile)/sizeof(logFile[0]),
  39                      NS_T("%s/%s"), sourcePathParam, alternateFileName);
  40     }
  41
  42     logFP = NS_tfopen(logFile, append ? NS_T("a") : NS_T("w"));
  43 }
  44
  45 void UpdateLog::Finish()
  46 {
  47     if (!logFP)
  48         return;
  49
  50     fclose(logFP);
  51     logFP = nullptr;
  52 }
  53
  54 void UpdateLog::Flush()
  55 {
  56     if (!logFP)
  57         return;
  58
  59     fflush(logFP);
  60 }
  61
  62 void UpdateLog::Printf(const char *fmt, ... )
  63 {
  64     if (!logFP)
  65         return;
  66
  67     va_list ap;
  68     va_start(ap, fmt);
  69     vfprintf(logFP, fmt, ap);
  70     fprintf(logFP, "\n");
  71     va_end(ap);
  72 }
  73
  74 void UpdateLog::WarnPrintf(const char *fmt, ... )
  75 {
  76     if (!logFP)
  77         return;
  78
  79     va_list ap;
  80     va_start(ap, fmt);
  81     fprintf(logFP, "*** Warning: ");
  82     vfprintf(logFP, fmt, ap);
  83     fprintf(logFP, "***\n");
  84     va_end(ap);
  85 }