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42 lines
1.2 KiB
42 lines
1.2 KiB
/* |
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* Copyright (c) 2014, Facebook, Inc. |
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* All rights reserved. |
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* |
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* This source code is licensed under the BSD-style license found in the |
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* LICENSE file in the root directory of this source tree. An additional grant |
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* of patent rights can be found in the PATENTS file in the same directory. |
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* |
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*/ |
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#import <Foundation/Foundation.h> |
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#import <Bolts/BFCancellationTokenRegistration.h> |
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NS_ASSUME_NONNULL_BEGIN |
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/*! |
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A block that will be called when a token is cancelled. |
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*/ |
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typedef void(^BFCancellationBlock)(); |
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/*! |
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The consumer view of a CancellationToken. |
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Propagates notification that operations should be canceled. |
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A BFCancellationToken has methods to inspect whether the token has been cancelled. |
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*/ |
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@interface BFCancellationToken : NSObject |
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/*! |
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Whether cancellation has been requested for this token source. |
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*/ |
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@property (nonatomic, assign, readonly, getter=isCancellationRequested) BOOL cancellationRequested; |
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/*! |
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Register a block to be notified when the token is cancelled. |
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If the token is already cancelled the delegate will be notified immediately. |
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*/ |
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- (BFCancellationTokenRegistration *)registerCancellationObserverWithBlock:(BFCancellationBlock)block; |
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@end |
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NS_ASSUME_NONNULL_END
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