ceph/src/boost/libs/log/src/process_id.cpp

   1 /*
   2  *          Copyright Andrey Semashev 2007 - 2015.
   3  * Distributed under the Boost Software License, Version 1.0.
   4  *    (See accompanying file LICENSE_1_0.txt or copy at
   5  *          http://www.boost.org/LICENSE_1_0.txt)
   6  */
   7 /*!
   8  * \file   process_id.cpp
   9  * \author Andrey Semashev
  10  * \date   12.09.2009
  11  *
  12  * \brief  This header is the Boost.Log library implementation, see the library documentation
  13  *         at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
  14  */
  15
  16 #include <boost/log/detail/config.hpp>
  17 #include <iostream>
  18 #include <boost/log/detail/process_id.hpp>
  19 #include "id_formatting.hpp"
  20
  21 #if defined(BOOST_WINDOWS)
  22
  23 #include <windows.h>
  24 #include <boost/log/detail/header.hpp>
  25
  26 namespace boost {
  27
  28 BOOST_LOG_OPEN_NAMESPACE
  29
  30 namespace aux {
  31
  32 enum { pid_size = sizeof(GetCurrentProcessId()) };
  33
  34 namespace this_process {
  35
  36     //! The function returns current process identifier
  37     BOOST_LOG_API process::id get_id()
  38     {
  39         return process::id(GetCurrentProcessId());
  40     }
  41
  42 } // namespace this_process
  43
  44 } // namespace aux
  45
  46 BOOST_LOG_CLOSE_NAMESPACE // namespace log
  47
  48 } // namespace boost
  49
  50 #else // defined(BOOST_WINDOWS)
  51
  52 #include <unistd.h>
  53 #include <boost/log/detail/header.hpp>
  54
  55 namespace boost {
  56
  57 BOOST_LOG_OPEN_NAMESPACE
  58
  59 namespace aux {
  60
  61 namespace this_process {
  62
  63     //! The function returns current process identifier
  64     BOOST_LOG_API process::id get_id()
  65     {
  66         // According to POSIX, pid_t should always be an integer type:
  67         // http://pubs.opengroup.org/onlinepubs/009695399/basedefs/sys/types.h.html
  68         return process::id(getpid());
  69     }
  70
  71 } // namespace this_process
  72
  73 enum { pid_size = sizeof(pid_t) };
  74
  75 } // namespace aux
  76
  77 BOOST_LOG_CLOSE_NAMESPACE // namespace log
  78
  79 } // namespace boost
  80
  81 #endif // defined(BOOST_WINDOWS)
  82
  83
  84 namespace boost {
  85
  86 BOOST_LOG_OPEN_NAMESPACE
  87
  88 namespace aux {
  89
  90 template< typename CharT, typename TraitsT >
  91 BOOST_LOG_API std::basic_ostream< CharT, TraitsT >&
  92 operator<< (std::basic_ostream< CharT, TraitsT >& strm, process::id const& pid)
  93 {
  94     if (strm.good())
  95     {
  96         CharT buf[pid_size * 2 + 3]; // 2 chars per byte + 3 chars for the leading 0x and terminating zero
  97         format_id< pid_size >(buf, sizeof(buf) / sizeof(*buf), pid.native_id(), (strm.flags() & std::ios_base::uppercase) != 0);
  98
  99         strm << buf;
 100     }
 101
 102     return strm;
 103 }
 104
 105 #if defined(BOOST_LOG_USE_CHAR)
 106 template BOOST_LOG_API
 107 std::basic_ostream< char, std::char_traits< char > >&
 108 operator<< (std::basic_ostream< char, std::char_traits< char > >& strm, process::id const& pid);
 109 #endif // defined(BOOST_LOG_USE_CHAR)
 110
 111 #if defined(BOOST_LOG_USE_WCHAR_T)
 112 template BOOST_LOG_API
 113 std::basic_ostream< wchar_t, std::char_traits< wchar_t > >&
 114 operator<< (std::basic_ostream< wchar_t, std::char_traits< wchar_t > >& strm, process::id const& pid);
 115 #endif // defined(BOOST_LOG_USE_WCHAR_T)
 116
 117 } // namespace aux
 118
 119 BOOST_LOG_CLOSE_NAMESPACE // namespace log
 120
 121 } // namespace boost
 122
 123 #include <boost/log/detail/footer.hpp>