EVOLUTION-MANAGER

Edit File: named_recursive_mutex.hpp

////////////////////////////////////////////////////////////////////////////// // // (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. // ////////////////////////////////////////////////////////////////////////////// #ifndef BOOST_INTERPROCESS_NAMED_RECURSIVE_MUTEX_HPP #define BOOST_INTERPROCESS_NAMED_RECURSIVE_MUTEX_HPP #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/detail/workaround.hpp> #include <boost/interprocess/creation_tags.hpp> #include <boost/interprocess/detail/posix_time_types_wrk.hpp> #include <boost/interprocess/permissions.hpp> #if !defined(BOOST_INTERPROCESS_FORCE_GENERIC_EMULATION) && defined (BOOST_INTERPROCESS_WINDOWS) #include <boost/interprocess/sync/windows/named_recursive_mutex.hpp> #define BOOST_INTERPROCESS_USE_WINDOWS #else #include <boost/interprocess/sync/shm/named_recursive_mutex.hpp> #endif //!\file //!Describes a named named_recursive_mutex class for inter-process synchronization namespace boost { namespace interprocess { #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED) namespace ipcdetail{ class interprocess_tester; } #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED //!A recursive mutex with a global name, so it can be found from different //!processes. This mutex can't be placed in shared memory, and //!each process should have it's own named_recursive_mutex. class named_recursive_mutex { #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED) //Non-copyable named_recursive_mutex(); named_recursive_mutex(const named_recursive_mutex &); named_recursive_mutex &operator=(const named_recursive_mutex &); #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED public: //!Creates a global recursive_mutex with a name. //!If the recursive_mutex can't be created throws interprocess_exception named_recursive_mutex(create_only_t create_only, const char *name, const permissions &perm = permissions()); //!Opens or creates a global recursive_mutex with a name. //!If the recursive_mutex is created, this call is equivalent to //!named_recursive_mutex(create_only_t, ... ) //!If the recursive_mutex is already created, this call is equivalent //!named_recursive_mutex(open_only_t, ... ) //!Does not throw named_recursive_mutex(open_or_create_t open_or_create, const char *name, const permissions &perm = permissions()); //!Opens a global recursive_mutex with a name if that recursive_mutex is previously //!created. If it is not previously created this function throws //!interprocess_exception. named_recursive_mutex(open_only_t open_only, const char *name); //!Destroys *this and indicates that the calling process is finished using //!the resource. The destructor function will deallocate //!any system resources allocated by the system for use by this process for //!this resource. The resource can still be opened again calling //!the open constructor overload. To erase the resource from the system //!use remove(). ~named_recursive_mutex(); //!Unlocks a previously locked //!named_recursive_mutex. void unlock(); //!Locks named_recursive_mutex, sleeps when named_recursive_mutex is already locked. //!Throws interprocess_exception if a severe error is found. void lock(); //!Tries to lock the named_recursive_mutex, returns false when named_recursive_mutex //!is already locked, returns true when success. //!Throws interprocess_exception if a severe error is found. bool try_lock(); //!Tries to lock the named_recursive_mutex until time abs_time, //!Returns false when timeout expires, returns true when locks. //!Throws interprocess_exception if a severe error is found bool timed_lock(const boost::posix_time::ptime &abs_time); //!Erases a named recursive mutex //!from the system static bool remove(const char *name); #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED) private: friend class ipcdetail::interprocess_tester; void dont_close_on_destruction(); #if defined(BOOST_INTERPROCESS_USE_WINDOWS) typedef ipcdetail::windows_named_recursive_mutex impl_t; #undef BOOST_INTERPROCESS_USE_WINDOWS #else typedef ipcdetail::shm_named_recursive_mutex impl_t; #endif impl_t m_mut; #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED }; #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED) inline named_recursive_mutex::~named_recursive_mutex() {} inline void named_recursive_mutex::dont_close_on_destruction() { ipcdetail::interprocess_tester::dont_close_on_destruction(m_mut); } inline named_recursive_mutex::named_recursive_mutex(create_only_t, const char *name, const permissions &perm) : m_mut (create_only, name, perm) {} inline named_recursive_mutex::named_recursive_mutex(open_or_create_t, const char *name, const permissions &perm) : m_mut (open_or_create, name, perm) {} inline named_recursive_mutex::named_recursive_mutex(open_only_t, const char *name) : m_mut (open_only, name) {} inline void named_recursive_mutex::lock() { m_mut.lock(); } inline void named_recursive_mutex::unlock() { m_mut.unlock(); } inline bool named_recursive_mutex::try_lock() { return m_mut.try_lock(); } inline bool named_recursive_mutex::timed_lock(const boost::posix_time::ptime &abs_time) { return m_mut.timed_lock(abs_time); } inline bool named_recursive_mutex::remove(const char *name) { return impl_t::remove(name); } #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED } //namespace interprocess { } //namespace boost { #include <boost/interprocess/detail/config_end.hpp> #endif //BOOST_INTERPROCESS_NAMED_RECURSIVE_MUTEX_HPP