31 lines
887 B
Objective-C
31 lines
887 B
Objective-C
//
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// QNSingleFlight.h
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// QiniuSDK
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//
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// Created by yangsen on 2021/1/4.
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// Copyright © 2021 Qiniu. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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typedef void(^QNSingleFlightComplete)(id _Nullable value, NSError * _Nullable error);
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typedef void(^QNSingleFlightAction)(QNSingleFlightComplete _Nonnull complete);
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@interface QNSingleFlight : NSObject
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/**
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* 异步 SingleFlight 执行函数
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* @param key actionHandler 对应的 key，同一时刻同一个 key 最多只有一个对应的 actionHandler 在执行
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* @param action 执行函数，注意：action 有且只能回调一次
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* @param complete single flight 执行 complete 后的完成回调
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*/
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- (void)perform:(NSString * _Nullable)key
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action:(QNSingleFlightAction _Nonnull)action
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complete:(QNSingleFlightComplete _Nullable)complete;
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@end
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NS_ASSUME_NONNULL_END
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