105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
//------------------------------------------------------------------------
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// Project : SDK Base
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// Version : 1.0
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//
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// Category : Helpers
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// Filename : base/thread/include/fcondition.h
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// Created by : Steinberg, 1995
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// Description : the threads and locks and signals...
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//
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//-----------------------------------------------------------------------------
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// This file is part of a Steinberg SDK. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this distribution
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// and at www.steinberg.net/sdklicenses.
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// No part of the SDK, including this file, may be copied, modified, propagated,
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// or distributed except according to the terms contained in the LICENSE file.
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//-----------------------------------------------------------------------------
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//----------------------------------------------------------------------------------
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/** @file base/thread/include/fcondition.h
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signal. */
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/** @defgroup baseThread Thread Handling */
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//----------------------------------------------------------------------------------
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#pragma once
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#include "pluginterfaces/base/ftypes.h"
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#if SMTG_PTHREADS
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#include <pthread.h>
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#endif
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//------------------------------------------------------------------------
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namespace Steinberg {
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namespace Base {
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namespace Thread {
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//------------------------------------------------------------------------
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/** FCondition - wraps the signal and wait calls in win32
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@ingroup baseThread */
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//------------------------------------------------------------------------
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class FCondition
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{
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public:
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//------------------------------------------------------------------------
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/** Condition constructor.
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* @param name name of condition
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*/
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FCondition (const char8* name = nullptr /* "FCondition" */ );
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/** Condition destructor.
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*/
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~FCondition ();
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/** Signals one thread.
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*/
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void signal ();
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/** Signals all threads.
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*/
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void signalAll ();
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/** Waits for condition.
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*/
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void wait ();
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/** Waits for condition with timeout
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* @param timeout time out in milliseconds
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* @return false if timed out
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*/
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bool waitTimeout (int32 timeout = -1);
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/** Resets condition.
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*/
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void reset ();
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#if SMTG_OS_WINDOWS
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/** Gets condition handle.
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* @return handle
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*/
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void* getHandle () { return event; }
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#endif
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//------------------------------------------------------------------------
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private:
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#if SMTG_PTHREADS
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pthread_mutex_t mutex; ///< Mutex object
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pthread_cond_t cond; ///< Condition object
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int32 state; ///< Use to hold the state of the signal
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int32 waiters; ///< Number of waiters
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#if DEVELOPMENT
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int32 waits; ///< Waits count
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int32 signalCount; ///< Signals count
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#endif
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#elif SMTG_OS_WINDOWS
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void* event; ///< Event handle
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#endif
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};
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//------------------------------------------------------------------------
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} // namespace Thread
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} // namespace Base
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} // namespace Steinberg
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