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https://github.com/boostorg/log.git
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190 lines
4.3 KiB
C++
190 lines
4.3 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2015.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*!
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* \file process_name.cpp
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* \author Andrey Semashev
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* \date 29.07.2012
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*
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* \brief This header is the Boost.Log library implementation, see the library documentation
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* at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
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*
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* The code in this file is based on information on this page:
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*
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* http://stackoverflow.com/questions/1023306/finding-current-executables-path-without-proc-self-exe
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*/
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#include <climits> // PATH_MAX
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#include <boost/log/attributes/current_process_name.hpp>
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#include <boost/filesystem/path.hpp>
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#ifndef PATH_MAX
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#define PATH_MAX 1024
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#endif
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#if defined(BOOST_WINDOWS)
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#define WIN32_LEAN_AND_MEAN
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#include "windows_version.hpp"
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#include <windows.h>
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#include <boost/log/detail/header.hpp>
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace aux {
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//! The function returns the current process name
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BOOST_LOG_API std::string get_process_name()
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{
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std::wstring buf;
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buf.resize(PATH_MAX);
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do
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{
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unsigned int len = GetModuleFileNameW(NULL, &buf[0], static_cast< unsigned int >(buf.size()));
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if (len < buf.size())
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{
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buf.resize(len);
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break;
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}
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buf.resize(buf.size() * 2);
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}
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while (buf.size() < 65536);
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return filesystem::path(buf).filename().string();
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}
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} // namespace aux
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)
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#include <cstring>
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#include <mach-o/dyld.h>
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#include <boost/cstdint.hpp>
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#include <boost/log/detail/header.hpp>
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace aux {
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//! The function returns the current process name
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BOOST_LOG_API std::string get_process_name()
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{
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std::string buf;
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buf.resize(PATH_MAX);
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while (true)
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{
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uint32_t size = static_cast< uint32_t >(buf.size());
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if (_NSGetExecutablePath(&buf[0], &size) == 0)
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{
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buf.resize(std::strlen(&buf[0]));
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break;
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}
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buf.resize(size);
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}
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return filesystem::path(buf).filename().string();
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}
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} // namespace aux
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#elif defined(__FreeBSD__)
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#include <stddef.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <boost/lexical_cast.hpp>
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#include <boost/filesystem/operations.hpp>
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#include <boost/log/detail/header.hpp>
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace aux {
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//! The function returns the current process name
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BOOST_LOG_API std::string get_process_name()
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{
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#if defined(KERN_PROC_PATHNAME)
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int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
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char buf[PATH_MAX] = {};
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size_t cb = sizeof(buf);
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if (sysctl(mib, 4, buf, &cb, NULL, 0) == 0)
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return filesystem::path(buf).filename().string();
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#endif
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if (filesystem::exists("/proc/curproc/file"))
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return filesystem::read_symlink("/proc/curproc/file").filename().string();
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return boost::lexical_cast< std::string >(getpid());
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}
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} // namespace aux
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#else
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#include <unistd.h>
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#include <boost/lexical_cast.hpp>
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#include <boost/filesystem/operations.hpp>
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#include <boost/log/detail/header.hpp>
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace aux {
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//! The function returns the current process name
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BOOST_LOG_API std::string get_process_name()
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{
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if (filesystem::exists("/proc/self/exe"))
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return filesystem::read_symlink("/proc/self/exe").filename().string();
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if (filesystem::exists("/proc/curproc/file"))
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return filesystem::read_symlink("/proc/curproc/file").filename().string();
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if (filesystem::exists("/proc/curproc/exe"))
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return filesystem::read_symlink("/proc/curproc/exe").filename().string();
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return boost::lexical_cast< std::string >(getpid());
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}
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} // namespace aux
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#endif
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