]> git.proxmox.com Git - ceph.git/blobdiff - ceph/src/boost/boost/interprocess/sync/named_recursive_mutex.hpp
update ceph source to reef 18.1.2
[ceph.git] / ceph / src / boost / boost / interprocess / sync / named_recursive_mutex.hpp
index b2f1c200bfd50f56cdca09f776b739aa26f7569a..099bd51d210071c7da0e5aeb35b51679e130a349 100644 (file)
 #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
+   #define BOOST_INTERPROCESS_NAMED_RECURSIVE_MUTEX_USE_WINAPI
 #else
    #include <boost/interprocess/sync/shm/named_recursive_mutex.hpp>
 #endif
@@ -56,7 +56,29 @@ class named_recursive_mutex
 
    //!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());
+   named_recursive_mutex(create_only_t, 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, 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, const char *name);
+
+   #if defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+   //!Creates a global recursive_mutex with a name.
+   //!If the recursive_mutex can't be created throws interprocess_exception
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   named_recursive_mutex(create_only_t, const wchar_t *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
@@ -64,12 +86,20 @@ class named_recursive_mutex
    //!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());
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   named_recursive_mutex(open_or_create_t, const wchar_t *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);
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   named_recursive_mutex(open_only_t, const wchar_t *name);
+
+   #endif //defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
 
    //!Destroys *this and indicates that the calling process is finished using
    //!the resource. The destructor function will deallocate
@@ -85,30 +115,58 @@ class named_recursive_mutex
 
    //!Locks named_recursive_mutex, sleeps when named_recursive_mutex is already locked.
    //!Throws interprocess_exception if a severe error is found.
+   //! 
+   //!Note: A program shall not deadlock if the thread that has ownership calls 
+   //!   this function. 
    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.
+   //! 
+   //!Note: A program shall not deadlock if the thread that has ownership calls 
+   //!   this function. 
    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);
+   //! 
+   //!Note: A program shall not deadlock if the thread that has ownership calls 
+   //!   this function. 
+   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)); }
 
    //!Erases a named recursive mutex
    //!from the system
    static bool remove(const char *name);
 
+   #if defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+   //!Erases a named recursive mutex
+   //!from the system
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   static bool remove(const wchar_t *name);
+   #endif   //defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
    #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
+   #if defined(BOOST_INTERPROCESS_NAMED_RECURSIVE_MUTEX_USE_WINAPI)
+      typedef ipcdetail::winapi_named_recursive_mutex   impl_t;
    #else
       typedef ipcdetail::shm_named_recursive_mutex impl_t;
    #endif
@@ -137,6 +195,22 @@ inline named_recursive_mutex::named_recursive_mutex(open_only_t, const char *nam
    :  m_mut   (open_only, name)
 {}
 
+#if defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+inline named_recursive_mutex::named_recursive_mutex(create_only_t, const wchar_t *name, const permissions &perm)
+   :  m_mut  (create_only, name, perm)
+{}
+
+inline named_recursive_mutex::named_recursive_mutex(open_or_create_t, const wchar_t *name, const permissions &perm)
+   :  m_mut  (open_or_create, name, perm)
+{}
+
+inline named_recursive_mutex::named_recursive_mutex(open_only_t, const wchar_t *name)
+   :  m_mut   (open_only, name)
+{}
+
+#endif   //defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
 inline void named_recursive_mutex::lock()
 {  m_mut.lock();  }
 
@@ -146,12 +220,20 @@ inline void named_recursive_mutex::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)
+template<class TimePoint>
+inline bool named_recursive_mutex::timed_lock(const TimePoint &abs_time)
 {  return m_mut.timed_lock(abs_time);  }
 
 inline bool named_recursive_mutex::remove(const char *name)
 {  return impl_t::remove(name); }
 
+#if defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+inline bool named_recursive_mutex::remove(const wchar_t *name)
+{  return impl_t::remove(name); }
+
+#endif   //defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
 #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
 
 }  //namespace interprocess {