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/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 * Jonathan Schleifer <js@heap.zone> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #import "OFMutex.h" OF_ASSUME_NONNULL_BEGIN @class OFDate; /*! * @class OFCondition OFCondition.h ObjFW/OFCondition.h * * @brief A class implementing a condition variable for thread synchronization. */ @interface OFCondition: OFMutex { of_condition_t _condition; bool _conditionInitialized; } /*! * @brief Creates a new condition. * * @return A new, autoreleased OFCondition */ + (instancetype)condition; /*! * @brief Blocks the current thread until another thread calls @ref signal or * @ref broadcast. */ - (void)wait; /*! * @brief Blocks the current thread until another thread calls @ref signal, * @ref broadcast or the timeout is reached. * * @param timeInterval The time interval until the timeout is reached * @return Whether the condition has been signaled */ - (bool)waitForTimeInterval: (of_time_interval_t)timeInterval; /*! * @brief Blocks the current thread until another thread calls @ref signal, * @ref broadcast or the timeout is reached. * * @param date The date at which the timeout is reached * @return Whether the condition has been signaled */ - (bool)waitUntilDate: (OFDate*)date; /*! * @brief Signals the next waiting thread to continue. */ - (void)signal; /*! * @brief Signals all threads to continue. */ - (void)broadcast; @end OF_ASSUME_NONNULL_END