FM / impl

/usr/include/boost/asio/detail/impl

Name	Size	Mode	Actions
buffer_sequence_adapter.ipp	3096	0644	edit dl rm
descriptor_ops.ipp	15091	0644	edit dl rm
dev_poll_reactor.hpp	2587	0644	edit dl rm
dev_poll_reactor.ipp	13138	0644	edit dl rm
epoll_reactor.hpp	2439	0644	edit dl rm
epoll_reactor.ipp	22372	0644	edit dl rm
eventfd_select_interrupter.ipp	4598	0644	edit dl rm
handler_tracking.ipp	11782	0644	edit dl rm
kqueue_reactor.hpp	2590	0644	edit dl rm
kqueue_reactor.ipp	17045	0644	edit dl rm
null_event.ipp	1906	0644	edit dl rm
pipe_select_interrupter.ipp	3176	0644	edit dl rm
posix_event.ipp	1776	0644	edit dl rm
posix_mutex.ipp	1235	0644	edit dl rm
posix_thread.ipp	1964	0644	edit dl rm
posix_tss_ptr.ipp	1261	0644	edit dl rm
reactive_descriptor_service.ipp	6388	0644	edit dl rm
reactive_serial_port_service.ipp	4278	0644	edit dl rm
reactive_socket_service_base.ipp	8802	0644	edit dl rm
resolver_service_base.ipp	3891	0644	edit dl rm
scheduler.ipp	15892	0644	edit dl rm
select_reactor.hpp	2985	0644	edit dl rm
select_reactor.ipp	9352	0644	edit dl rm
service_registry.hpp	2652	0644	edit dl rm
service_registry.ipp	5462	0644	edit dl rm
signal_set_service.ipp	20376	0644	edit dl rm
socket_ops.ipp	113798	0644	edit dl rm
socket_select_interrupter.ipp	5858	0644	edit dl rm
strand_executor_service.hpp	11570	0644	edit dl rm
strand_executor_service.ipp	3637	0644	edit dl rm
strand_service.hpp	3574	0644	edit dl rm
strand_service.ipp	5037	0644	edit dl rm
throw_error.ipp	1268	0644	edit dl rm
timer_queue_ptime.ipp	2410	0644	edit dl rm
timer_queue_set.ipp	2317	0644	edit dl rm
winrt_ssocket_service_base.ipp	17513	0644	edit dl rm
winrt_timer_scheduler.hpp	2664	0644	edit dl rm
winrt_timer_scheduler.ipp	2962	0644	edit dl rm
winsock_init.ipp	2050	0644	edit dl rm
win_event.ipp	2068	0644	edit dl rm
win_iocp_handle_service.ipp	14394	0644	edit dl rm
win_iocp_io_context.hpp	3026	0644	edit dl rm
win_iocp_io_context.ipp	16634	0644	edit dl rm
win_iocp_serial_port_service.ipp	6021	0644	edit dl rm
win_iocp_socket_service_base.ipp	25041	0644	edit dl rm
win_mutex.ipp	2213	0644	edit dl rm
win_object_handle_service.ipp	12495	0644	edit dl rm
win_static_mutex.ipp	3636	0644	edit dl rm
win_thread.ipp	4102	0644	edit dl rm
win_tss_ptr.ipp	1448	0644	edit dl rm

Edit: /usr/include/boost/asio/detail/impl/win_static_mutex.ipp (3636B)

//
// detail/impl/win_static_mutex.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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)
//

#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP
#define BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include <boost/asio/detail/config.hpp>

#if defined(BOOST_ASIO_WINDOWS)

#include <cstdio>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/detail/win_static_mutex.hpp>
#include <boost/asio/error.hpp>

#include <boost/asio/detail/push_options.hpp>

namespace boost {
namespace asio {
namespace detail {

void win_static_mutex::init()
{
  int error = do_init();
  boost::system::error_code ec(error,
      boost::asio::error::get_system_category());
  boost::asio::detail::throw_error(ec, "static_mutex");
}

int win_static_mutex::do_init()
{
  using namespace std; // For sprintf.
  wchar_t mutex_name[128];
#if defined(BOOST_ASIO_HAS_SECURE_RTL)
  swprintf_s(
#else // defined(BOOST_ASIO_HAS_SECURE_RTL)
  _snwprintf(
#endif // defined(BOOST_ASIO_HAS_SECURE_RTL)
      mutex_name, 128, L"asio-58CCDC44-6264-4842-90C2-F3C545CB8AA7-%u-%p",
      static_cast<unsigned int>(::GetCurrentProcessId()), this);

#if defined(BOOST_ASIO_WINDOWS_APP)
  HANDLE mutex = ::CreateMutexExW(0, mutex_name, CREATE_MUTEX_INITIAL_OWNER, 0);
#else // defined(BOOST_ASIO_WINDOWS_APP)
  HANDLE mutex = ::CreateMutexW(0, TRUE, mutex_name);
#endif // defined(BOOST_ASIO_WINDOWS_APP)
  DWORD last_error = ::GetLastError();
  if (mutex == 0)
    return ::GetLastError();

if (last_error == ERROR_ALREADY_EXISTS)
  {
#if defined(BOOST_ASIO_WINDOWS_APP)
    ::WaitForSingleObjectEx(mutex, INFINITE, false);
#else // defined(BOOST_ASIO_WINDOWS_APP)
    ::WaitForSingleObject(mutex, INFINITE);
#endif // defined(BOOST_ASIO_WINDOWS_APP)
  }

if (initialised_)
  {
    ::ReleaseMutex(mutex);
    ::CloseHandle(mutex);
    return 0;
  }

#if defined(__MINGW32__)
  // Not sure if MinGW supports structured exception handling, so for now
  // we'll just call the Windows API and hope.
# if defined(UNDER_CE)
  ::InitializeCriticalSection(&crit_section_);
# else
  if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
  {
    last_error = ::GetLastError();
    ::ReleaseMutex(mutex);
    ::CloseHandle(mutex);
    return last_error;
  }
# endif
#else
  __try
  {
# if defined(UNDER_CE)
    ::InitializeCriticalSection(&crit_section_);
# elif defined(BOOST_ASIO_WINDOWS_APP)
    if (!::InitializeCriticalSectionEx(&crit_section_, 0, 0))
    {
      last_error = ::GetLastError();
      ::ReleaseMutex(mutex);
      ::CloseHandle(mutex);
      return last_error;
    }
# else
    if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
    {
      last_error = ::GetLastError();
      ::ReleaseMutex(mutex);
      ::CloseHandle(mutex);
      return last_error;
    }
# endif
  }
  __except(GetExceptionCode() == STATUS_NO_MEMORY
      ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH)
  {
    ::ReleaseMutex(mutex);
    ::CloseHandle(mutex);
    return ERROR_OUTOFMEMORY;
  }
#endif

initialised_ = true;
  ::ReleaseMutex(mutex);
  ::CloseHandle(mutex);
  return 0;
}

} // namespace detail
} // namespace asio
} // namespace boost

#include <boost/asio/detail/pop_options.hpp>

#endif // defined(BOOST_ASIO_WINDOWS)

#endif // BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP

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