GCD dispath_async dispath_sync 各种混合使用测试情况
使用 dispath_get_global_queue 并发的情况下 源代码下载: gcdtest.zip
001 dispath_get_global_queue + dispath_async
002 dispath_get_global_queue + dispath_sync
003 dispatch_async -> call dispatch_async
004 dispatch_async -> call dispatch_sync
005 dispatch_sync -> call dispatch_sync
006 dispatch_sync -> call dispatch_async
dispath_get_global_queue 001 -- 006 爆发一下,看看大家能不能捋清楚 :)
爆发第二个 ///Serial: tasks execute one at a time in FIFO order 先进先出
爆发第三个 ///Serial: tasks execute one at a time in FIFO order 先进先出