//
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// YYSentinel.h
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// YYKit <https://github.com/ibireme/YYKit>
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//
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// Created by ibireme on 15/4/13.
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// Copyright (c) 2015 ibireme.
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//
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// This source code is licensed under the MIT-style license found in the
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// LICENSE file in the root directory of this source tree.
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//
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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/**
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YYSentinel is a thread safe incrementing counter.
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It may be used in some multi-threaded situation.
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*/
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@interface YYSentinel : NSObject
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/// Returns the current value of the counter.
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@property (readonly) int32_t value;
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/// Increase the value atomically.
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/// @return The new value.
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- (int32_t)increase;
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@end
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NS_ASSUME_NONNULL_END
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