git.m6w6.name Git - m6w6/libmemcached/blob - src/util/logfile.cc

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  DataDifferential Utility Library
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *  All rights reserved.
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   8  *  Redistribution and use in source and binary forms, with or without
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  12  *      * Redistributions of source code must retain the above copyright
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  15  *      * Redistributions in binary form must reproduce the above
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  20  *      * The names of its contributors may not be used to endorse or
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  24  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  37
  38 #include "mem_config.h"
  39
  40 #include "util/logfile.hpp"
  41
  42 #include <cerrno>
  43 #include <cstdio>
  44 #include <cstdlib>
  45 #include <cstring>
  46 #include <fcntl.h>
  47 #include <fstream>
  48 #include <iostream>
  49 #include <sstream>
  50 #include <sys/stat.h>
  51 #include <sys/types.h>
  52 #if HAVE_UNISTD_H
  53 #  include <unistd.h>
  54 #endif
  55
  56 namespace datadifferential {
  57 namespace util {
  58
  59 Logfile::Logfile(const std::string &arg) :
  60   _filename(arg)
  61 {
  62   time_t tmp= time(NULL);
  63   _log_file << "shutdown: " << ctime(&tmp) << std::endl;
  64 }
  65
  66 Logfile::~Logfile()
  67 {
  68   if (not _filename.empty())
  69   {
  70     _log_file.close();
  71     if (access(_filename.c_str(), F_OK) == -1)
  72     { }
  73     else if (unlink(_filename.c_str()) == -1)
  74     { }
  75   }
  76 }
  77
  78 bool Logfile::open()
  79 {
  80   if (_filename.empty())
  81   {
  82     _log_file.open("/dev/stderr");
  83     return true;
  84   }
  85
  86   _log_file.open(_filename.c_str());
  87   if (not _log_file.good())
  88   {
  89     return false;
  90   }
  91
  92   time_t tmp= time(NULL);
  93   _log_file << "startup: " << ctime(&tmp) << std::endl;
  94
  95   return true;
  96 }
  97
  98 } /* namespace util */
  99 } /* namespace datadifferential */