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 #include <unistd.h>
  53
  54 namespace datadifferential {
  55 namespace util {
  56
  57 Logfile::Logfile(const std::string &arg) :
  58   _filename(arg)
  59 {
  60   time_t tmp= time(NULL);
  61   _log_file << "shutdown: " << ctime(&tmp) << std::endl;
  62 }
  63
  64 Logfile::~Logfile()
  65 {
  66   if (not _filename.empty())
  67   {
  68     _log_file.close();
  69     if (access(_filename.c_str(), F_OK) == -1)
  70     { }
  71     else if (unlink(_filename.c_str()) == -1)
  72     { }
  73   }
  74 }
  75
  76 bool Logfile::open()
  77 {
  78   if (_filename.empty())
  79   {
  80     _log_file.open("/dev/stderr");
  81     return true;
  82   }
  83
  84   _log_file.open(_filename.c_str());
  85   if (not _log_file.good())
  86   {
  87     return false;
  88   }
  89
  90   time_t tmp= time(NULL);
  91   _log_file << "startup: " << ctime(&tmp) << std::endl;
  92
  93   return true;
  94 }
  95
  96 } /* namespace util */
  97 } /* namespace datadifferential */