我的主程序产生一个线程,它执行以下操作:
// alloc autorelease pool somewhere before
NSArray *blah = [NSArray arrayWithObject: @"moo"];
[self performSelectorOnMainThread: @selector(boonk:) withObject: blah
waitUntilDone: NO];
// release autorelease pool somewhere after
现在,这对我来说似乎有问题,因为自动释放池可以在选择器 boonk: 完成执行之前释放,这会导致崩溃。
所以,我的下一步自然是:
// alloc autorelease pool somewhere before
NSArray *blah = [[NSArray alloc] initWithObject: @"moo"];
[self performSelectorOnMainThread: @selector(boonk:) withObject: blah
waitUntilDone: NO];
// release autorelease pool somewhere after
- (void)boonk: (id)data
{
// do something with data
[data release]; // release the ref count the thread added
}
这绝对是没有错误的,但是....似乎不自然。是否有一个objective-c ref 计数约定或协议来处理这种情况(跨线程无等待发布),或者第二个解决方案是否高于它的完成方式?