2018-07-31

dispatch_async_main_queue

    * thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
  * frame #0: 0x000000010275259c Demo`__29-[ViewController viewDidLoad]_block_invoke((null)=0x00000001073ce470) at ViewController.m:38
    frame #1: 0x00000001072df3f7 libdispatch.dylib`_dispatch_call_block_and_release + 12
    frame #2: 0x00000001072e043c libdispatch.dylib`_dispatch_client_callout + 8
    frame #3: 0x00000001072eb6f0 libdispatch.dylib`_dispatch_main_queue_callback_4CF + 628
    frame #4: 0x000000010398aee9 CoreFoundation`__CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
    frame #5: 0x000000010394f592 CoreFoundation`__CFRunLoopRun + 2402
    frame #6: 0x000000010394e9b9 CoreFoundation`CFRunLoopRunSpecific + 409
    frame #7: 0x00000001089989c6 GraphicsServices`GSEventRunModal + 62
    frame #8: 0x0000000103e435e8 UIKit`UIApplicationMain + 159
    frame #9: 0x0000000102752663 Demo`main(argc=1, argv=0x00007fff5d4ad0f8) at main.m:47
    frame #10: 0x000000010735cd81 libdyld.dylib`start + 1
    frame #11: 0x000000010735cd81 libdyld.dylib`start + 1

NSTimer
    * thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
  * frame #0: 0x000000010931b550 Demo`__29-[ViewController viewDidLoad]_block_invoke_2((null)=0x000000010e024470, timer=0x0000604000170740) at ViewController.m:42
    frame #1: 0x00000001096921ee Foundation`__NSFireTimer + 83
    frame #2: 0x000000010a5212a4 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
    frame #3: 0x000000010a520f62 CoreFoundation`__CFRunLoopDoTimer + 1026
    frame #4: 0x000000010a520b1a CoreFoundation`__CFRunLoopDoTimers + 266
    frame #5: 0x000000010a518534 CoreFoundation`__CFRunLoopRun + 2308
    frame #6: 0x000000010a5179b9 CoreFoundation`CFRunLoopRunSpecific + 409
    frame #7: 0x000000010f5ee9c6 GraphicsServices`GSEventRunModal + 62
    frame #8: 0x000000010b0315e8 UIKit`UIApplicationMain + 159
    frame #9: 0x000000010931b623 Demo`main(argc=1, argv=0x00007fff568e40f8) at main.m:47
    frame #10: 0x000000010dfb2d81 libdyld.dylib`start + 1
    frame #11: 0x000000010dfb2d81 libdyld.dylib`start + 1