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过期处理程序运行后从后台返回时 iPhone 应用程序崩溃

转载 作者:行者123 更新时间:2023-11-29 13:40:39 25 4
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我在 iPhone 应用程序从后台崩溃时遇到了一些问题,它以两种方式崩溃。

这是一个堆栈跟踪:

    Hardware Model:  iPhone4,1
Process: MyApp [11247]
Identifier: MyApp
Code Type: ARM (Native)
Parent Process: launchd [1]
OS Version: iPhone OS 5.0.1 (9A406)
Report Version: 104

Exception Type: EXC_CRASH (SIGSEGV)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0

Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x30938010 0x30937000 + 4112
1 libsystem_kernel.dylib 0x30938206 0x30937000 + 4614
2 liblaunch.dylib 0x3717d114 0x37177000 + 24852
3 liblaunch.dylib 0x3717af4a 0x37177000 + 16202
4 liblaunch.dylib 0x3717affa 0x37177000 + 16378
5 CoreTelephony 0x37c590aa 0x37c42000 + 94378
6 IMAVCore 0x3713d15a 0x3711d000 + 131418
7 IMAVCore 0x3713d522 0x3711d000 + 132386
8 CoreFoundation 0x372396bc 0x371f8000 + 267964
9 CoreTelephony 0x37c68f3e 0x37c42000 + 159550
10 CoreTelephony 0x37c5929c 0x37c42000 + 94876
11 CoreFoundation 0x3727b0c4 0x371f8000 + 536772
12 libdispatch.dylib 0x33ac2d4e 0x33ac2000 + 3406
13 libdispatch.dylib 0x33ac4f74 0x33ac2000 + 12148
14 CoreFoundation 0x372842d6 0x371f8000 + 574166
15 CoreFoundation 0x372074d6 0x371f8000 + 62678
16 CoreFoundation 0x3720739e 0x371f8000 + 62366
17 GraphicsServices 0x313bdfc6 0x313ba000 + 16326
18 UIKit 0x3287973c 0x32848000 + 202556
19 MyApp 0x00003eae main (main.m:16)
20 MyApp 0x00003e6c start + 32

Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x309383b4 0x30937000 + 5044
1 libdispatch.dylib 0x33ac5f74 0x33ac2000 + 16244
2 libdispatch.dylib 0x33ac5c92 0x33ac2000 + 15506

Thread 2 name: WebThread
Thread 2:
0 libsystem_kernel.dylib 0x30938010 0x30937000 + 4112
1 libsystem_kernel.dylib 0x30938206 0x30937000 + 4614
2 CoreFoundation 0x3728541c 0x371f8000 + 578588
3 CoreFoundation 0x37284154 0x371f8000 + 573780
4 CoreFoundation 0x372074d6 0x371f8000 + 62678
5 CoreFoundation 0x3720739e 0x371f8000 + 62366
6 WebCore 0x3305e128 0x32fb6000 + 688424
7 libsystem_c.dylib 0x31f24c16 0x31f15000 + 64534
8 libsystem_c.dylib 0x31f24ad0 0x31f15000 + 64208

Thread 3:
0 libsystem_kernel.dylib 0x30948cd4 0x30937000 + 72916
1 libsystem_c.dylib 0x31f1f30a 0x31f15000 + 41738
2 libsystem_c.dylib 0x31f1f09c 0x31f15000 + 41116

Thread 4:
0 libsystem_kernel.dylib 0x30938010 0x30937000 + 4112
1 libsystem_kernel.dylib 0x30938206 0x30937000 + 4614
2 CoreFoundation 0x3728541c 0x371f8000 + 578588
3 CoreFoundation 0x37284154 0x371f8000 + 573780
4 CoreFoundation 0x372074d6 0x371f8000 + 62678
5 CoreFoundation 0x3720739e 0x371f8000 + 62366
6 Foundation 0x31c8ab7e 0x31c86000 + 19326
7 MyApp 0x00057e7c +[XMPPStream xmppThreadMain] (XMPPStream.m:4089)
8 Foundation 0x31c96a8a 0x31c86000 + 68234
9 Foundation 0x31d2a59a 0x31c86000 + 673178
10 libsystem_c.dylib 0x31f24c16 0x31f15000 + 64534
11 libsystem_c.dylib 0x31f24ad0 0x31f15000 + 64208

Thread 5 name: AURemoteIO::IOThread
Thread 5:
0 libsystem_kernel.dylib 0x30938010 0x30937000 + 4112
1 libsystem_kernel.dylib 0x30938206 0x30937000 + 4614
2 AudioToolbox 0x373e048a 0x37321000 + 783498
3 AudioToolbox 0x373e40ae 0x37321000 + 798894
4 AudioToolbox 0x37322aac 0x37321000 + 6828
5 libsystem_c.dylib 0x31f24c16 0x31f15000 + 64534
6 libsystem_c.dylib 0x31f24ad0 0x31f15000 + 64208

Thread 6 name: com.apple.NSURLConnectionLoader
Thread 6:
0 libsystem_kernel.dylib 0x30938010 0x30937000 + 4112
1 libsystem_kernel.dylib 0x30938206 0x30937000 + 4614
2 CoreFoundation 0x3728541c 0x371f8000 + 578588
3 CoreFoundation 0x37284154 0x371f8000 + 573780
4 CoreFoundation 0x372074d6 0x371f8000 + 62678
5 CoreFoundation 0x3720739e 0x371f8000 + 62366
6 Foundation 0x31c96bc2 0x31c86000 + 68546
7 Foundation 0x31c96a8a 0x31c86000 + 68234
8 Foundation 0x31d2a59a 0x31c86000 + 673178
9 libsystem_c.dylib 0x31f24c16 0x31f15000 + 64534
10 libsystem_c.dylib 0x31f24ad0 0x31f15000 + 64208

Thread 7:
0 libsystem_kernel.dylib 0x30938010 0x30937000 + 4112
1 libsystem_kernel.dylib 0x30938206 0x30937000 + 4614
2 CoreFoundation 0x3728541c 0x371f8000 + 578588
3 CoreFoundation 0x37284154 0x371f8000 + 573780
4 CoreFoundation 0x372074d6 0x371f8000 + 62678
5 CoreFoundation 0x3720739e 0x371f8000 + 62366
6 Foundation 0x31c8ab7e 0x31c86000 + 19326
7 Foundation 0x31ca452c 0x31c86000 + 124204
8 MyApp 0x00070b28 +[GCDAsyncSocket listenerThread] (GCDAsyncSocket.m:6283)
9 Foundation 0x31c96a8a 0x31c86000 + 68234
10 Foundation 0x31d2a59a 0x31c86000 + 673178
11 libsystem_c.dylib 0x31f24c16 0x31f15000 + 64534
12 libsystem_c.dylib 0x31f24ad0 0x31f15000 + 64208

Thread 8 name: com.apple.CFSocket.private
Thread 8:
0 libsystem_kernel.dylib 0x30948570 0x30937000 + 71024
1 CoreFoundation 0x3728966a 0x371f8000 + 595562
2 libsystem_c.dylib 0x31f24c16 0x31f15000 + 64534
3 libsystem_c.dylib 0x31f24ad0 0x31f15000 + 64208

Thread 9 name: Dispatch queue: cocoa.lumberjack
Thread 9:
0 libsystem_kernel.dylib 0x30938060 0x30937000 + 4192
1 libdispatch.dylib 0x33ac6472 0x33ac2000 + 17522
2 libdispatch.dylib 0x33ac63d2 0x33ac2000 + 17362
3 MyApp 0x0007a3e2 +[DDLog lt_log:] (DDLog.m:922)
4 MyApp 0x00079158 __40+[DDLog queueLogMessage:asynchronously:]_block_invoke_0 (DDLog.m:449)
5 libdispatch.dylib 0x33ac2d4e 0x33ac2000 + 3406
6 libdispatch.dylib 0x33ac4dc0 0x33ac2000 + 11712
7 libdispatch.dylib 0x33ac4c56 0x33ac2000 + 11350
8 libdispatch.dylib 0x33ac5860 0x33ac2000 + 14432
9 libsystem_c.dylib 0x31f1f1c8 0x31f15000 + 41416
10 libsystem_c.dylib 0x31f1f09c 0x31f15000 + 41116

Thread 10:
0 libsystem_kernel.dylib 0x30948cd4 0x30937000 + 72916
1 libsystem_c.dylib 0x31f1f30a 0x31f15000 + 41738
2 libsystem_c.dylib 0x31f1f09c 0x31f15000 + 41116

Thread 11:
0 libsystem_kernel.dylib 0x30948cd4 0x30937000 + 72916
1 libsystem_c.dylib 0x31f1f30a 0x31f15000 + 41738
2 libsystem_c.dylib 0x31f1f09c 0x31f15000 + 41116

Thread 12 name: Dispatch queue: cocoa.lumberjack.fileLogger
Thread 12:
0 CoreFoundation 0x3723875a 0x371f8000 + 264026
1 Foundation 0x31cb0722 0x31c86000 + 173858
2 Foundation 0x31cb069a 0x31c86000 + 173722
3 MyApp 0x001d8510 -[MyCustomFormatter formatLogMessage:] (MyAppDelegate.m:101)
4 MyApp 0x0007782c -[DDFileLogger logMessage:] (DDFileLogger.m:986)
5 MyApp 0x0007a79e __16+[DDLog lt_log:]_block_invoke_0 (DDLog.m:916)
6 libdispatch.dylib 0x33ac2d4e 0x33ac2000 + 3406
7 libdispatch.dylib 0x33ac4dc0 0x33ac2000 + 11712
8 libdispatch.dylib 0x33ac4c56 0x33ac2000 + 11350
9 libdispatch.dylib 0x33ac5860 0x33ac2000 + 14432
10 libsystem_c.dylib 0x31f1f1c8 0x31f15000 + 41416
11 libsystem_c.dylib 0x31f1f09c 0x31f15000 + 41116

Thread 13:
0 libsystem_kernel.dylib 0x30948cd4 0x30937000 + 72916
1 libsystem_c.dylib 0x31f1f30a 0x31f15000 + 41738
2 libsystem_c.dylib 0x31f1f09c 0x31f15000 + 41116

Thread 14:
0 libsystem_kernel.dylib 0x30948cd4 0x30937000 + 72916
1 libsystem_c.dylib 0x31f1f30a 0x31f15000 + 41738
2 libsystem_c.dylib 0x31f1f09c 0x31f15000 + 41116

Thread 0 crashed with ARM Thread State:
r0: 0x00000000 r1: 0x03000003 r2: 0x000000bc r3: 0x00000068
r4: 0x00000107 r5: 0x00000000 r6: 0x00000000 r7: 0x2fdfe3c8
r8: 0x00000000 r9: 0x00a80df8 r10: 0x03000003 r11: 0x00000000
ip: 0xffffffe1 sp: 0x2fdfe38c lr: 0x3093820d pc: 0x30938010
cpsr: 0x200f0010

另一个类似,在 -[MyCustomFormatter formatLogMessage:] (MyAppDelegate.m:101) 中的 Thread 12 中崩溃

这里是的代码- (NSString *)formatLogMessage:(DDLogMessage *)logMessage:

    NSString *logLevel;
switch (logMessage->logFlag) {
case LOG_FLAG_ERROR : logLevel = @"[E]"; break;
case LOG_FLAG_WARN : logLevel = @"[W]"; break;
case LOG_FLAG_INFO : logLevel = @"[I]"; break;
default : logLevel = @"[V]"; break;
}
/*line 100*/
/*line 101*/ NSString *dateAndTime = [dateFormatter stringFromDate:(logMessage->timestamp)];
/*line 102*/
NSString *logMsg = logMessage->logMsg;

NSString *fileName = [NSString stringWithCString:logMessage->file encoding:[NSString defaultCStringEncoding]];

NSString *function = [NSString stringWithCString:logMessage->function encoding:[NSString defaultCStringEncoding]];

return [NSString stringWithFormat:@"%@ - %@ (%@ - %@) | %@\n", logLevel, dateAndTime, fileName, function, logMsg];

并且 dateFormatterMyCustomFormatter init 中初始化:

    - (id)init
{
if((self = [super init]))
{
self.dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
[dateFormatter setDateFormat:@"yyyy/MM/dd HH:mm:ss:SSS"];
}
return self;
}

它的界面如下:

    @interface MyCustomFormatter : NSObject <DDLogFormatter>
{
NSDateFormatter *dateFormatter;
}

@property (nonatomic, retain) NSDateFormatter *dateFormatter;

@end

我在 App Delegate - (void)applicationWillResignActive:(UIApplication *)application 中的代码如下所示:

    self.bgTask = [app beginBackgroundTaskWithExpirationHandler:^{

DDLogInfo(@"Ending bg task in expiration handler");
//TODO: remove after tests
[[UIApplication sharedApplication] setApplicationIconBadgeNumber:66];

[[XMPP instance] disconnect];

[app endBackgroundTask:self.bgTask];

self.bgTask = UIBackgroundTaskInvalid;

}];


// Start the long-running task and return immediately.

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

// Do the work associated with the task.

sleep(600);

if(self.bgTask != UIBackgroundTaskInvalid){
//TODO: remove after tests
[[UIApplication sharedApplication] setApplicationIconBadgeNumber:99];

DDLogInfo(@"Disconnecting from XMPP in bg task after waited in bg");
[[XMPP instance] disconnect];

[app endBackgroundTask:self.bgTask];

self.bgTask = UIBackgroundTaskInvalid;
}

});

- (void)applicationWillEnterForeground:(UIApplication *)application:

    DDLogVerbose(@"ApplicationWillEnterForeground:");
if(self.bgTask != UIBackgroundTaskInvalid){
[[UIApplication sharedApplication] endBackgroundTask:self.bgTask];
self.bgTask = UIBackgroundTaskInvalid;
}
else {
[[XMPP instance] connect];
}

我已经设置了角标(Badge),以便了解该应用程序是否仍在运行,以及它是如何停止的,并注意到当它从后台打开时应用程序崩溃并显示角标(Badge) 66仅。

如有任何帮助,我们将不胜感激。

提前致谢。

最佳答案

问题似乎是我的三个记录器同时使用了非线程安全的日期格式化程序,参见 SO question

关于过期处理程序运行后从后台返回时 iPhone 应用程序崩溃,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9276838/

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