/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 * Jonathan Schleifer * * 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 "OFObject.h" @class OFTimer; @class OFDate; @class OFRunLoop; #ifdef OF_THREADS @class OFCondition; #endif #ifdef OF_HAVE_BLOCKS typedef void (^of_timer_block_t)(OFTimer*); #endif /*! * @brief A class for creating and firing timers. */ @interface OFTimer: OFObject { OFDate *fireDate; double interval; id target, object1, object2; SEL selector; uint8_t arguments; BOOL repeats; #ifdef OF_HAVE_BLOCKS of_timer_block_t block; #endif BOOL isValid; #ifdef OF_THREADS OFCondition *condition; BOOL done; #endif OFRunLoop *inRunLoop; } #ifdef OF_HAVE_PROPERTIES @property (retain) OFDate *fireDate; #endif /*! * @brief Creates and schedules a new timer with the specified time interval. * * @param interval The time interval after which the timer should be executed * when fired * @param target The target on which to call the selector * @param selector The selector to call on the target * @param repeats Whether the timer repeats after it has been executed * @return A new, autoreleased timer */ + (instancetype)scheduledTimerWithTimeInterval: (double)interval target: (id)target selector: (SEL)selector repeats: (BOOL)repeats; /*! * @brief Creates and schedules a new timer with the specified time interval. * * @param interval The time interval after which the timer should be executed * when fired * @param target The target on which to call the selector * @param selector The selector to call on the target * @param object An object to pass when calling the selector on the target * @param repeats Whether the timer repeats after it has been executed * @return A new, autoreleased timer */ + (instancetype)scheduledTimerWithTimeInterval: (double)interval target: (id)target selector: (SEL)selector object: (id)object repeats: (BOOL)repeats; /*! * @brief Creates and schedules a new timer with the specified time interval. * * @param interval The time interval after which the timer should be executed * when fired * @param target The target on which to call the selector * @param selector The selector to call on the target * @param object1 The first object to pass when calling the selector on the * target * @param object2 The second object to pass when calling the selector on the * target * @param repeats Whether the timer repeats after it has been executed * @return A new, autoreleased timer */ + (instancetype)scheduledTimerWithTimeInterval: (double)interval target: (id)target selector: (SEL)selector object: (id)object1 object: (id)object2 repeats: (BOOL)repeats; #ifdef OF_HAVE_BLOCKS /*! * @brief Creates and schedules a new timer with the specified time interval. * * @param interval The time interval after which the timer should be executed * when fired * @param repeats Whether the timer repeats after it has been executed * @param block The block to invoke when the timer fires * @return A new, autoreleased timer */ + (instancetype)scheduledTimerWithTimeInterval: (double)interval repeats: (BOOL)repeats block: (of_timer_block_t)block; #endif /*! * @brief Creates a new timer with the specified time interval. * * @param interval The time interval after which the timer should be executed * when fired * @param target The target on which to call the selector * @param selector The selector to call on the target * @param repeats Whether the timer repeats after it has been executed * @return A new, autoreleased timer */ + (instancetype)timerWithTimeInterval: (double)interval target: (id)target selector: (SEL)selector repeats: (BOOL)repeats; /*! * @brief Creates a new timer with the specified time interval. * * @param interval The time interval after which the timer should be executed * when fired * @param target The target on which to call the selector * @param selector The selector to call on the target * @param object An object to pass when calling the selector on the target * @param repeats Whether the timer repeats after it has been executed * @return A new, autoreleased timer */ + (instancetype)timerWithTimeInterval: (double)interval target: (id)target selector: (SEL)selector object: (id)object repeats: (BOOL)repeats; /*! * @brief Creates a new timer with the specified time interval. * * @param interval The time interval after which the timer should be executed * when fired * @param target The target on which to call the selector * @param selector The selector to call on the target * @param object1 The first object to pass when calling the selector on the * target * @param object2 The second object to pass when calling the selector on the * target * @param repeats Whether the timer repeats after it has been executed * @return A new, autoreleased timer */ + (instancetype)timerWithTimeInterval: (double)interval target: (id)target selector: (SEL)selector object: (id)object1 object: (id)object2 repeats: (BOOL)repeats; #ifdef OF_HAVE_BLOCKS /*! * @brief Creates a new timer with the specified time interval. * * @param interval The time interval after which the timer should be executed * when fired * @param repeats Whether the timer repeats after it has been executed * @param block The block to invoke when the timer fires * @return A new, autoreleased timer */ + (instancetype)timerWithTimeInterval: (double)interval repeats: (BOOL)repeats block: (of_timer_block_t)block; #endif /*! * @brief Initializes an already allocated timer with the specified time * interval. * * @param fireDate The date at which the timer should fire * @param interval The time interval after which to repeat the timer, if it is * a repeating timer * @param target The target on which to call the selector * @param selector The selector to call on the target * @param repeats Whether the timer repeats after it has been executed * @return An initialized timer */ - initWithFireDate: (OFDate*)fireDate interval: (double)interval target: (id)target selector: (SEL)selector repeats: (BOOL)repeats; /*! * @brief Initializes an already allocated timer with the specified time * interval. * * @param fireDate The date at which the timer should fire * @param interval The time interval after which to repeat the timer, if it is * a repeating timer * @param target The target on which to call the selector * @param selector The selector to call on the target * @param object An object to pass when calling the selector on the target * @param repeats Whether the timer repeats after it has been executed * @return An initialized timer */ - initWithFireDate: (OFDate*)fireDate interval: (double)interval target: (id)target selector: (SEL)selector object: (id)object repeats: (BOOL)repeats; /*! * @brief Initializes an already allocated timer with the specified time * interval. * * @param fireDate The date at which the timer should fire * @param interval The time interval after which to repeat the timer, if it is * a repeating timer * @param target The target on which to call the selector * @param selector The selector to call on the target * @param object1 The first object to pass when calling the selector on the * target * @param object2 The second object to pass when calling the selector on the * target * @param repeats Whether the timer repeats after it has been executed * @return An initialized timer */ - initWithFireDate: (OFDate*)fireDate interval: (double)interval target: (id)target selector: (SEL)selector object: (id)object1 object: (id)object2 repeats: (BOOL)repeats; #ifdef OF_HAVE_BLOCKS /*! * @brief Initializes an already allocated timer with the specified time * interval. * * @param fireDate The date at which the timer should fire * @param interval The time interval after which to repeat the timer, if it is * a repeating timer * @param repeats Whether the timer repeats after it has been executed * @param block The block to invoke when the timer fires * @return An initialized timer */ - initWithFireDate: (OFDate*)fireDate interval: (double)interval repeats: (BOOL)repeats block: (of_timer_block_t)block; #endif /*! * @brief Fires the timer, meaning it will execute the specified selector on the * target. */ - (void)fire; /*! * @brief Returns the next date at which the timer will fire. * * @return The next date at which the timer will fire */ - (OFDate*)fireDate; /*! * @brief Sets the next date at which the timer will fire. * * If the timer is already scheduled in a run loop, it will be rescheduled. * Note that rescheduling is an expensive operation, though it still might be * preferrable to reschedule instead of invalidating the timer and creating a * new one. * * @param fireDate The next date at which the timer will fire */ - (void)setFireDate: (OFDate*)fireDate; /*! * @brief Invalidates the timer, preventing it from firing. */ - (void)invalidate; /*! * @brief Returns whether the timer is valid. * * @return Whether the timer is valid */ - (BOOL)isValid; /*! * @brief Returns the time interval in which the timer will repeat, if it is a * repeating timer. * * @return The time interval in which the timer will repeat, if it is a * repeating timer */ - (double)timeInterval; #ifdef OF_THREADS /*! * @brief Waits until the timer fired. */ - (void)waitUntilDone; #endif - (void)OF_setInRunLoop: (OFRunLoop*)inRunLoop; @end