hphp/util/cronolog.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16
  17 #ifndef incl_HPHP_CRONOLOG_H_
  18 #define incl_HPHP_CRONOLOG_H_
  19
  20 #include <atomic>
  21 #include <string>
  22 #include <cstdio>
  23 #include <mutex>
  24
  25 #include <folly/portability/Stdlib.h>
  26
  27 #include "hphp/util/cronoutils.h"
  28 #include "hphp/util/log-file-flusher.h"
  29
  30 namespace HPHP {
  31 ///////////////////////////////////////////////////////////////////////////////
  32
  33 struct Cronolog {
  34   Cronolog() = default;
  35   Cronolog(const Cronolog&) = delete;
  36   Cronolog& operator=(const Cronolog&) = delete;
  37   ~Cronolog() {
  38     if (m_prevFile) fclose(m_prevFile);
  39     if (m_file) fclose(m_file);
  40   }
  41   void setPeriodicity();
  42   FILE* getOutputFile();
  43   static void changeOwner(const std::string& username,
  44                           const std::string& symlink);
  45   PERIODICITY m_periodicity{UNKNOWN};
  46   PERIODICITY m_periodDelayUnits{UNKNOWN};
  47   int m_periodMultiple{1};
  48   int m_periodDelay{0};
  49   int m_useAmericanDateFormats{0};
  50   char m_fileName[PATH_MAX];
  51   char* m_startTime{nullptr};
  52   std::string m_template;
  53   std::string m_linkName;
  54   char* m_prevLinkName{nullptr};
  55   time_t m_timeOffset{0};
  56   time_t m_nextPeriod{0};
  57   FILE* m_prevFile{nullptr};
  58   FILE* m_file{nullptr};
  59   LogFileFlusher flusher;
  60   std::mutex m_mutex;
  61 };
  62
  63 ///////////////////////////////////////////////////////////////////////////////
  64 }
  65
  66 #endif // incl_HPHP_CRONOLOG_H_