1 files changed, 120 insertions, 0 deletions
diff --git a/boost/asio/detail/impl/win_static_mutex.ipp b/boost/asio/detail/impl/win_static_mutex.ipp
new file mode 100644
index 0000000000..3ec104da2b
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+++ b/boost/asio/detail/impl/win_static_mutex.ipp
@@ -0,0 +1,120 @@
+//
+// detail/impl/win_static_mutex.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2012 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_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 BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
+  swprintf_s(mutex_name, 128,
+#else // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
+  swprintf(mutex_name,
+#endif // BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
+      L"asio-58CCDC44-6264-4842-90C2-F3C545CB8AA7-%u-%p",
+      static_cast<unsigned int>(::GetCurrentProcessId()), this);
+
+  HANDLE mutex = ::CreateMutexW(0, TRUE, mutex_name);
+  DWORD last_error = ::GetLastError();
+  if (mutex == 0)
+    return ::GetLastError();
+
+  if (last_error == ERROR_ALREADY_EXISTS)
+    ::WaitForSingleObject(mutex, INFINITE);
+
+  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_);
+# 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_WINDOWS)
+
+#endif // BOOST_ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP