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36 lines
568 B
36 lines
568 B
/*
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* Copyright (c) 2018-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT 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/NSObject.h>
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#import <mutex>
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@interface Ctor : NSObject
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- (instancetype)init;
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- (void)write:(int)data;
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@end
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@implementation Ctor {
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std::mutex _mutex;
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int _data;
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}
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- (instancetype)init {
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if (!(self = [super init])) {
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return nil;
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}
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int i = _data;
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return self;
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}
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- (void)write:(int)data {
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_mutex.lock();
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_data = data;
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_mutex.unlock();
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}
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@end
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