GCD 提供了同步执行任务的创建方法dispatch_sync和异步执行任务创建方法dispatch_async。 // 同步执行任务创建方法dispatch_sync(queue, ^{// 这里放同步执行任务代码});// 异步执行任务创建方法dispatch_async(queue, ^{// 这里放异步执行任务代码}); 虽然使用 GCD 只需两步,但是既然我们有两种队列(串行队列/并发...
32 33 34 35 36 /** * 异步执行 + 并发队列 * 特点:可以开启多个线程,任务交替(同时)执行。 */ - (void)asyncConcurrent { NSLog(@"currentThread---%@",[NSThread currentThread]);// 打印当前线程 NSLog(@"asyncConcurrent---begin"); dispatch_queue_t queue = dispatch_queue_create("net.bujige....
2018-02-23 20:48:26.316956+0800 YSC-GCD-demo[20188:5059274] 3---<NSThread: 0x600000079d80>{number = 4, name = (null)} 2018-02-23 20:48:28.320660+0800 YSC-GCD-demo[20188:5059273] 4---<NSThread: 0x600000079e00>{number = 3, name = (null)} 2018-02-23 20:48:28.320649+0800 YSC...
正常情况下(obj存在)会通过id2data方法生成一个SyncData对象 typedef struct alignas(CacheLineSize) SyncData { struct SyncData* nextData; DisguisedPtr<objc_object> object; int32_t threadCount; // number of THREADS using this block recursive_mutex_t mutex; } SyncData; 1. 2. 3. 4. 5. 6. n...
THE 48 LAWS OF POWER - Means of ManipulationDANIAL, SARAPulse International
Accumulated after years of development, we have many advanced equipment, like Germany fast Trulaser3030 laser cutting, machine, CNC punch press TruPunch1000, CNC shearing machine, CNC lathe, bending machine, seam welding machine and more than one formula 1-160-1 high-end ...
Accumulated after years of development, we have many advanced equipment, like Germany fast Trulaser3030 laser cutting machine, CNC punch press TruPunch1000, CNC shearing machine, CNC lathe, bending machine, seam weld-ing machine and more than one formula 1-160-1...
Gasket is the structure of a double sealing gasket and has a signal hole. When the medium leaks first, it can be released through the signal port and solve the problem in advance, so as not to cause the mixing of the two media...
GC series gage heads are available in both AC and DC versions. AC-operated units require external signal conditioning (see our range of Instrumentation products on our web site); DC-operated units integrate the core, LVDT and all necessary electronics under a single housing. Use of monolithic...
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