dispatch semaphore

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• 

  iOS GCD dispatch_semaphore

  例如 dispatch_semaphore_t semaphore = dispatch_semaphore_cr...

• 多个异步网络请求结束后再更新UI

  //信号量 dispatch_semaphore_t semaphore = dispatch_semaphore...

• 利用GCD信号量实现同步

  dispatch_semaphore_create创建一个semaphore dispatch_semaphore...

• iOS锁的基本使用

  @synchronized dispatch_semaphore dispatch_semaphore_wait ...

• 

  GCD信号量

  dispatch_semaphore_t semaphore = dispatch_sem...

• 并发数据顺序执行

  dispatch_semaphore_t sem = dispatch_semaphore_create(1); ...

• 

  信号量

  //声明信号量dispatch_semaphore_t semaphore = dispatch_semaphor...

• 多个异步网络请求，刷新UI

  /// 创建信号量 dispatch_semaphore_t semaphore = dispatch_sem...

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  iOS锁-dispatch_semaphore

  dispatch_semaphore_t API说明 1、dispatch_semaphore_create ，初...

• 

  信号量

  信号量semaphore = dispatch_semaphore_create(0); dispatch_sem...