不确定行为,因为我怀疑我陷入了僵局,
我有一个包含多个对象的类 - 每个对象都创建一个同名队列。我不确定 GCD 是否在对象之间重用相同的队列,或者它们是否只是共享相同的名称。
例如
@interface MyClass
-(void)doSomeWork
@property (nonatomic,strong) dispatch_queue_t myQueue;
@end
@implementation MyClass
-(id)init
{
self = [super init];
self.myQueue = dispatch_queue_create("MyQueue",DISPATCH_QUEUE_SERIAL);
return self;
}
-(void)doSomeWork
{
dispatch_async(self.myQueue,^{
// some long running work
});
}
@end
@interface SomeClassWhichCreatesALotOfObjects
@end
@implementation SomeClassWhichCreatesALotOfObjects
-(void)someMethod
{
for(int i = 0; i < 10000; i++)
{
MyClass *object = [MyClass new];
[object doSomeWork]; // are these running in serial to each other or are each offset to the queue their object has created? Can't understand from the debugger
}
}
@end
最佳答案
正如 Apple 的文档所述,标签是:
A string label to attach to the queue to uniquely identify it in debugging tools such as Instruments...
仅用作提示,仅此而已。
编辑
这是使用共享队列所需的代码。
+ (dispatch_queue_t)sharedQueue
{
static dispatch_queue_t sharedQueue;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sharedQueue = dispatch_queue_create("MyQueue", NULL);
});
return sharedQueue;
}
关于ios - 创建具有相同名称的串行队列的 2 个对象是否共享相同的队列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19421283/