boost/libs/log/src/process_id.cpp
2022-12-15 23:45:23 +08:00

124 lines
2.9 KiB
C++

/*
* Copyright Andrey Semashev 2007 - 2015.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/*!
* \file process_id.cpp
* \author Andrey Semashev
* \date 12.09.2009
*
* \brief This header is the Boost.Log library implementation, see the library documentation
* at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
*/
#include <boost/log/detail/config.hpp>
#include <iostream>
#include <boost/log/detail/process_id.hpp>
#include "id_formatting.hpp"
#if defined(BOOST_WINDOWS)
#include <windows.h>
#include <boost/log/detail/header.hpp>
namespace boost {
BOOST_LOG_OPEN_NAMESPACE
namespace aux {
enum { pid_size = sizeof(GetCurrentProcessId()) };
namespace this_process {
//! The function returns current process identifier
BOOST_LOG_API process::id get_id()
{
return process::id(GetCurrentProcessId());
}
} // namespace this_process
} // namespace aux
BOOST_LOG_CLOSE_NAMESPACE // namespace log
} // namespace boost
#else // defined(BOOST_WINDOWS)
#include <unistd.h>
#include <boost/log/detail/header.hpp>
namespace boost {
BOOST_LOG_OPEN_NAMESPACE
namespace aux {
namespace this_process {
//! The function returns current process identifier
BOOST_LOG_API process::id get_id()
{
// According to POSIX, pid_t should always be an integer type:
// http://pubs.opengroup.org/onlinepubs/009695399/basedefs/sys/types.h.html
return process::id(getpid());
}
} // namespace this_process
enum { pid_size = sizeof(pid_t) };
} // namespace aux
BOOST_LOG_CLOSE_NAMESPACE // namespace log
} // namespace boost
#endif // defined(BOOST_WINDOWS)
namespace boost {
BOOST_LOG_OPEN_NAMESPACE
namespace aux {
template< typename CharT, typename TraitsT >
BOOST_LOG_API std::basic_ostream< CharT, TraitsT >&
operator<< (std::basic_ostream< CharT, TraitsT >& strm, process::id const& pid)
{
if (strm.good())
{
CharT buf[pid_size * 2 + 3]; // 2 chars per byte + 3 chars for the leading 0x and terminating zero
format_id< pid_size >(buf, sizeof(buf) / sizeof(*buf), pid.native_id(), (strm.flags() & std::ios_base::uppercase) != 0);
strm << buf;
}
return strm;
}
#if defined(BOOST_LOG_USE_CHAR)
template BOOST_LOG_API
std::basic_ostream< char, std::char_traits< char > >&
operator<< (std::basic_ostream< char, std::char_traits< char > >& strm, process::id const& pid);
#endif // defined(BOOST_LOG_USE_CHAR)
#if defined(BOOST_LOG_USE_WCHAR_T)
template BOOST_LOG_API
std::basic_ostream< wchar_t, std::char_traits< wchar_t > >&
operator<< (std::basic_ostream< wchar_t, std::char_traits< wchar_t > >& strm, process::id const& pid);
#endif // defined(BOOST_LOG_USE_WCHAR_T)
} // namespace aux
BOOST_LOG_CLOSE_NAMESPACE // namespace log
} // namespace boost
#include <boost/log/detail/footer.hpp>