Added thirdparty: boost library

thirdparty/include/boost/interprocess/sync/interprocess_mutex.hpp

@@ -0,0 +1,197 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2005-2012. 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.
+//
+//////////////////////////////////////////////////////////////////////////////
+//
+// Parts of the pthread code come from Boost Threads code.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTERPROCESS_MUTEX_HPP
+#define BOOST_INTERPROCESS_MUTEX_HPP
+
+#if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+#
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
+
+#include <boost/interprocess/detail/config_begin.hpp>
+#include <boost/interprocess/exceptions.hpp>
+#include <boost/interprocess/detail/workaround.hpp>
+#include <boost/assert.hpp>
+#include <boost/interprocess/sync/detail/common_algorithms.hpp>
+
+#if !defined(BOOST_INTERPROCESS_FORCE_GENERIC_EMULATION) && defined (BOOST_INTERPROCESS_POSIX_PROCESS_SHARED)
+   #include <boost/interprocess/sync/posix/mutex.hpp>
+   #define BOOST_INTERPROCESS_MUTEX_USE_POSIX
+#elif !defined(BOOST_INTERPROCESS_FORCE_GENERIC_EMULATION) && defined (BOOST_INTERPROCESS_WINDOWS)
+   //Experimental...
+   #define BOOST_INTERPROCESS_MUTEX_USE_WINAPI
+   #include <boost/interprocess/sync/windows/mutex.hpp>
+#else
+   //spin_mutex is used
+   #include <boost/interprocess/sync/spin/mutex.hpp>
+   namespace boost {
+   namespace interprocess {
+   namespace ipcdetail{
+   namespace robust_emulation_helpers {
+
+   template<class T>
+   class mutex_traits;
+
+   }}}}
+#endif
+
+#endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
+
+//!\file
+//!Describes a mutex class that can be placed in memory shared by
+//!several processes.
+
+namespace boost {
+namespace interprocess {
+
+class interprocess_condition;
+
+//!Wraps a interprocess_mutex that can be placed in shared memory and can be
+//!shared between processes. Allows timed lock tries
+class interprocess_mutex
+{
+   #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+   //Non-copyable
+   interprocess_mutex(const interprocess_mutex &);
+   interprocess_mutex &operator=(const interprocess_mutex &);
+   friend class interprocess_condition;
+
+   public:
+   #if defined(BOOST_INTERPROCESS_MUTEX_USE_POSIX)
+      typedef ipcdetail::posix_mutex internal_mutex_type;
+   #elif defined(BOOST_INTERPROCESS_MUTEX_USE_WINAPI)
+      typedef ipcdetail::winapi_mutex internal_mutex_type;
+   #else
+      typedef ipcdetail::spin_mutex internal_mutex_type;
+      private:
+      friend class ipcdetail::robust_emulation_helpers::mutex_traits<interprocess_mutex>;
+      void take_ownership(){ m_mutex.take_ownership(); }
+      public:
+   #endif
+
+   #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
+   public:
+
+   //!Constructor.
+   //!Throws interprocess_exception on error.
+   interprocess_mutex();
+
+   //!Destructor. If any process uses the mutex after the destructor is called
+   //!the result is undefined. Does not throw.
+   ~interprocess_mutex();
+
+   //!Requires: The calling thread does not own the mutex.
+   //!
+   //!Effects: The calling thread tries to obtain ownership of the mutex, and
+   //!   if another thread has ownership of the mutex, it waits until it can
+   //!   obtain the ownership. If a thread takes ownership of the mutex the
+   //!   mutex must be unlocked by the same mutex.
+   //!Throws: interprocess_exception on error.
+   //! 
+   //!Note: A program may deadlock if the thread that has ownership calls 
+   //!   this function. If the implementation can detect the deadlock,
+   //!   an exception could be thrown.
+   void lock();
+
+   //!Requires: The calling thread does not own the mutex.
+   //!
+   //!Effects: The calling thread tries to obtain ownership of the mutex, and
+   //!   if another thread has ownership of the mutex returns immediately.
+   //!Returns: If the thread acquires ownership of the mutex, returns true, if
+   //!   the another thread has ownership of the mutex, returns false.
+   //!Throws: interprocess_exception on error.
+   //! 
+   //!Note: A program may deadlock if the thread that has ownership calls 
+   //!   this function. If the implementation can detect the deadlock,
+   //!   an exception could be thrown.
+   bool try_lock();
+
+   //!Requires: The calling thread does not own the mutex.
+   //!
+   //!Effects: The calling thread will try to obtain exclusive ownership of the
+   //!   mutex if it can do so in until the specified time is reached. If the
+   //!   mutex supports recursive locking, the mutex must be unlocked the same
+   //!   number of times it is locked.
+   //!Returns: If the thread acquires ownership of the mutex, returns true, if
+   //!   the timeout expires returns false.
+   //!Throws: interprocess_exception on error.
+   //! 
+   //!Note: A program may deadlock if the thread that has ownership calls 
+   //!   this function. If the implementation can detect the deadlock,
+   //!   an exception could be thrown.
+   template<class TimePoint>
+   bool timed_lock(const TimePoint &abs_time);
+
+   //!Same as `timed_lock`, but this function is modeled after the
+   //!standard library interface.
+   template<class TimePoint> bool try_lock_until(const TimePoint &abs_time)
+   {  return this->timed_lock(abs_time);  }
+
+   //!Same as `timed_lock`, but this function is modeled after the
+   //!standard library interface.
+   template<class Duration>  bool try_lock_for(const Duration &dur)
+   {  return this->timed_lock(ipcdetail::duration_to_ustime(dur)); }
+
+   //!Effects: The calling thread releases the exclusive ownership of the mutex.
+   //!Throws: interprocess_exception on error.
+   void unlock();
+
+   #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+   internal_mutex_type &internal_mutex()
+   {  return m_mutex;   }
+
+   const internal_mutex_type &internal_mutex() const
+   {  return m_mutex;   }
+
+   private:
+   internal_mutex_type m_mutex;
+   #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
+};
+
+}  //namespace interprocess {
+}  //namespace boost {
+
+
+namespace boost {
+namespace interprocess {
+
+inline interprocess_mutex::interprocess_mutex(){}
+
+inline interprocess_mutex::~interprocess_mutex(){}
+
+inline void interprocess_mutex::lock()
+{  ipcdetail::timeout_when_locking_aware_lock(m_mutex);  }
+
+inline bool interprocess_mutex::try_lock()
+{ return m_mutex.try_lock(); }
+
+template <class TimePoint>
+inline bool interprocess_mutex::timed_lock(const TimePoint &abs_time)
+{ return m_mutex.timed_lock(abs_time); }
+
+inline void interprocess_mutex::unlock()
+{ m_mutex.unlock(); }
+
+}  //namespace interprocess {
+}  //namespace boost {
+
+#include <boost/interprocess/detail/config_end.hpp>
+
+#endif   //BOOST_INTERPROCESS_MUTEX_HPP