Squashed 'third_party/boostorg/container/' content from commit 1ad6431
Change-Id: I7d095db3455264c03446268e5675b926bebedb0a
git-subtree-dir: third_party/boostorg/container
git-subtree-split: 1ad64316a432a7f021b4956acf88abc6aaa8a77e
diff --git a/include/boost/container/detail/thread_mutex.hpp b/include/boost/container/detail/thread_mutex.hpp
new file mode 100644
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--- /dev/null
+++ b/include/boost/container/detail/thread_mutex.hpp
@@ -0,0 +1,179 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2018-2018. 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)
+//
+// See http://www.boost.org/libs/interprocess for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+//
+// This code is partially based on the lightweight mutex implemented
+// by Boost.SmartPtr:
+//
+// Copyright (c) 2002, 2003 Peter Dimov
+// Copyright (c) Microsoft Corporation 2014
+//
+// 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_CONFIG_HPP
+# include <boost/config.hpp>
+#endif
+#
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+# pragma once
+#endif
+
+#ifndef BOOST_CONTAINER_DETAIL_THREAD_MUTEX_HPP
+#define BOOST_CONTAINER_DETAIL_THREAD_MUTEX_HPP
+
+#include <boost/container/detail/config_begin.hpp>
+#include <boost/container/detail/workaround.hpp>
+
+#if defined(BOOST_HAS_PTHREADS)
+
+#include <pthread.h>
+#include <boost/assert.hpp>
+
+namespace boost{
+namespace container {
+namespace dtl {
+
+class thread_mutex
+{
+ public:
+ thread_mutex()
+ {
+ BOOST_VERIFY(pthread_mutex_init(&m_mut, 0) == 0);
+ }
+
+ ~thread_mutex()
+ {
+ BOOST_VERIFY(pthread_mutex_destroy(&m_mut) == 0);
+ }
+
+ void lock()
+ {
+ BOOST_VERIFY(pthread_mutex_lock( &m_mut) == 0);
+ }
+
+ void unlock()
+ {
+ BOOST_VERIFY(pthread_mutex_unlock(&m_mut) == 0);
+ }
+
+ private:
+ thread_mutex(thread_mutex const &);
+ thread_mutex & operator=(thread_mutex const &);
+
+ pthread_mutex_t m_mut;
+};
+
+} // namespace dtl {
+} // namespace container {
+} // namespace boost {
+
+#else //!BOOST_HAS_PTHREADS (Windows implementation)
+
+#ifdef BOOST_USE_WINDOWS_H
+
+#include <windows.h>
+
+namespace boost{
+namespace container {
+namespace dtl {
+
+typedef ::CRITICAL_SECTION win_critical_section;
+
+} // namespace dtl {
+} // namespace container {
+} // namespace boost {
+
+#else //! BOOST_USE_WINDOWS_H
+
+struct _RTL_CRITICAL_SECTION_DEBUG;
+struct _RTL_CRITICAL_SECTION;
+
+namespace boost{
+namespace container {
+namespace dtl {
+
+#ifdef BOOST_PLAT_WINDOWS_UWP
+extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSectionEx(::_RTL_CRITICAL_SECTION *, unsigned long, unsigned long);
+#else
+extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(::_RTL_CRITICAL_SECTION *);
+#endif
+extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(::_RTL_CRITICAL_SECTION *);
+extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(::_RTL_CRITICAL_SECTION *);
+extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(::_RTL_CRITICAL_SECTION *);
+
+struct win_critical_section
+{
+ struct _RTL_CRITICAL_SECTION_DEBUG * DebugInfo;
+ long LockCount;
+ long RecursionCount;
+ void * OwningThread;
+ void * LockSemaphore;
+ #if defined(_WIN64)
+ unsigned __int64 SpinCount;
+ #else
+ unsigned long SpinCount;
+ #endif
+};
+
+} // namespace dtl {
+} // namespace container {
+} // namespace boost {
+
+#endif //BOOST_USE_WINDOWS_H
+
+namespace boost{
+namespace container {
+namespace dtl {
+
+class thread_mutex
+{
+ public:
+ thread_mutex()
+ {
+ #ifdef BOOST_PLAT_WINDOWS_UWP
+ InitializeCriticalSectionEx(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect), 4000, 0);
+ #else
+ InitializeCriticalSection(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect));
+ #endif
+ }
+
+ void lock()
+ {
+ EnterCriticalSection(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect));
+ }
+
+ void unlock()
+ {
+ LeaveCriticalSection(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect));
+ }
+
+ ~thread_mutex()
+ {
+ DeleteCriticalSection(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect));
+ }
+
+ private:
+ thread_mutex(thread_mutex const &);
+ thread_mutex & operator=(thread_mutex const &);
+
+ win_critical_section m_crit_sect;
+};
+
+} // namespace dtl {
+} // namespace container {
+} // namespace boost {
+
+#endif //BOOST_HAS_PTHREADS
+
+#endif // #ifndef BOOST_CONTAINER_DETAIL_THREAD_MUTEX_HPP