mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-12-09 15:51:05 +00:00
131 lines
2.8 KiB
Objective-C
131 lines
2.8 KiB
Objective-C
/*
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* This is the source code of Telegram for iOS v. 1.1
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* It is licensed under GNU GPL v. 2 or later.
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* You should have received a copy of the license in this archive (see LICENSE).
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*
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* Copyright Peter Iakovlev, 2013.
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*/
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#import <MTProtoKit/MTTimer.h>
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#if TARGET_OS_IPHONE
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#if __IPHONE_OS_VERSION_MIN_REQUIRED >= 60000 // iOS 6.0 or later
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#define NEEDS_DISPATCH_RETAIN_RELEASE 0
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#else // iOS 5.X or earlier
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#define NEEDS_DISPATCH_RETAIN_RELEASE 1
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#endif
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#else
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#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1080 // Mac OS X 10.8 or later
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#define NEEDS_DISPATCH_RETAIN_RELEASE 0
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#else
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#define NEEDS_DISPATCH_RETAIN_RELEASE 1 // Mac OS X 10.7 or earlier
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#endif
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#endif
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@interface MTTimer ()
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@property (nonatomic, strong) dispatch_source_t timer;
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@property (nonatomic) NSTimeInterval timeout;
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@property (nonatomic) bool repeat;
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@property (nonatomic, copy) dispatch_block_t completion;
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@property (nonatomic, strong) dispatch_queue_t queue;
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@end
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@implementation MTTimer
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- (id)initWithTimeout:(NSTimeInterval)timeout repeat:(bool)repeat completion:(dispatch_block_t)completion queue:(dispatch_queue_t)queue
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{
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self = [super init];
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if (self != nil)
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{
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_timeoutDate = INT_MAX;
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_timeout = timeout;
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_repeat = repeat;
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self.completion = completion;
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self.queue = queue;
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}
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return self;
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}
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- (void)dealloc
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{
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if (_timer != nil)
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{
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dispatch_source_cancel(_timer);
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#if NEEDS_DISPATCH_RETAIN_RELEASE
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dispatch_release(_timer);
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#endif
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_timer = nil;
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}
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}
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- (void)start
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{
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_timeoutDate = CFAbsoluteTimeGetCurrent() + kCFAbsoluteTimeIntervalSince1970 + _timeout;
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_timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, _queue);
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dispatch_source_set_timer(_timer, dispatch_time(DISPATCH_TIME_NOW, (int64_t)(_timeout * NSEC_PER_SEC)), _repeat ? (int64_t)(_timeout * NSEC_PER_SEC) : DISPATCH_TIME_FOREVER, 0);
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dispatch_source_set_event_handler(_timer, ^
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{
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if (self.completion)
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self.completion();
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if (!_repeat)
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{
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[self invalidate];
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}
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});
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dispatch_resume(_timer);
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}
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- (void)fireAndInvalidate
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{
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if (self.completion)
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self.completion();
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[self invalidate];
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}
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- (void)invalidate
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{
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_timeoutDate = 0;
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if (_timer != nil)
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{
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dispatch_source_cancel(_timer);
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#if NEEDS_DISPATCH_RETAIN_RELEASE
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dispatch_release(_timer);
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#endif
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_timer = nil;
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}
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}
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- (bool)isScheduled
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{
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return _timer != nil;
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}
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- (void)resetTimeout:(NSTimeInterval)timeout
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{
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[self invalidate];
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_timeout = timeout;
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[self start];
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}
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- (NSTimeInterval)remainingTime
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{
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if (_timeoutDate < FLT_EPSILON)
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return DBL_MAX;
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else
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return _timeoutDate - (CFAbsoluteTimeGetCurrent() + kCFAbsoluteTimeIntervalSince1970);
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}
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@end
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