124 lines
3 KiB
Text
124 lines
3 KiB
Text
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file mutexDirect.I
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* @author drose
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* @date 2006-02-13
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*/
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/**
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* Alias for acquire() to match C++11 semantics.
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* @see acquire()
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*/
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INLINE void MutexDirect::
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lock() {
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TAU_PROFILE("void MutexDirect::acquire()", " ", TAU_USER);
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_impl.lock();
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}
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/**
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* Alias for try_acquire() to match C++11 semantics.
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* @see try_acquire()
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*/
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INLINE bool MutexDirect::
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try_lock() {
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TAU_PROFILE("void MutexDirect::try_acquire()", " ", TAU_USER);
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return _impl.try_lock();
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}
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/**
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* Alias for release() to match C++11 semantics.
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* @see release()
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*/
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INLINE void MutexDirect::
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unlock() {
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TAU_PROFILE("void MutexDirect::unlock()", " ", TAU_USER);
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_impl.unlock();
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}
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/**
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* Grabs the mutex if it is available. If it is not available, blocks until
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* it becomes available, then grabs it. In either case, the function does not
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* return until the mutex is held; you should then call unlock().
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*
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* This method is considered const so that you can lock and unlock const
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* mutexes, mainly to allow thread-safe access to otherwise const data.
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*
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* Also see MutexHolder.
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*/
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INLINE void MutexDirect::
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acquire() const {
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TAU_PROFILE("void MutexDirect::acquire()", " ", TAU_USER);
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_impl.lock();
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}
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/**
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* Returns immediately, with a true value indicating the mutex has been
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* acquired, and false indicating it has not.
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*
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* @deprecated Python users should use acquire(False), C++ users try_lock()
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*/
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INLINE bool MutexDirect::
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try_acquire() const {
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TAU_PROFILE("void MutexDirect::acquire(bool)", " ", TAU_USER);
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return _impl.try_lock();
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}
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/**
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* Releases the mutex. It is an error to call this if the mutex was not
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* already locked.
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*
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* This method is considered const so that you can lock and unlock const
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* mutexes, mainly to allow thread-safe access to otherwise const data.
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*/
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INLINE void MutexDirect::
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release() const {
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TAU_PROFILE("void MutexDirect::release()", " ", TAU_USER);
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_impl.unlock();
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}
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/**
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* Returns true if the current thread has locked the Mutex, false otherwise.
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* This method is only intended for use in debugging, hence the method name;
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* in the MutexDirect case, it always returns true, since there's not a
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* reliable way to determine this otherwise.
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*/
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INLINE bool MutexDirect::
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debug_is_locked() const {
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return true;
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}
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/**
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* The mutex name is only defined when compiling in DEBUG_THREADS mode.
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*/
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INLINE void MutexDirect::
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set_name(const std::string &) {
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}
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/**
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* The mutex name is only defined when compiling in DEBUG_THREADS mode.
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*/
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INLINE void MutexDirect::
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clear_name() {
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}
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/**
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* The mutex name is only defined when compiling in DEBUG_THREADS mode.
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*/
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INLINE bool MutexDirect::
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has_name() const {
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return false;
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}
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/**
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* The mutex name is only defined when compiling in DEBUG_THREADS mode.
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*/
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INLINE std::string MutexDirect::
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get_name() const {
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return std::string();
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}
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