尝试实例化对象时，我在 TyphoonComponentFactory.m 中遇到崩溃 - 此行因 EXC_BAD_ACCESS 崩溃:
279:[pool setObject:instance forKey:definition.key];
或者有时是这个:
276:id instance = [pool objectForKey:definition.key];
所有变量 - 池、实例、定义，在调试器中查看崩溃时的情况。在程序执行的早期(但不是更早，即相同的运行循环)，我已经设置了 TyphoonComponentFactory 并将其设为默认工厂。有什么可能导致这种情况吗？我有一个模糊的理论，即工厂对于调用者来说创建得太晚了，但是......非常弱。
台风版本1.8.2。这是程序集:
#import "EndpointQueueAssembly.h"
#import "EndpointQueue.h"
#import "URLStorage.h"
#import "EndpointHTTPMethods.h"
#import "EndpointURLStrings.h"
#import "HTTPRequestOperationFactory.h"
#import "Services.h"
#import "ChatImageCheck.h"
@implementation EndpointQueueAssembly
-(id)endpointQueue
{
return [TyphoonDefinition withClass: [EndpointQueue class] properties:^(TyphoonDefinition *definition) {
[definition setScope:TyphoonScopeSingleton];
}];
}
-(id)urlStorage
{
return [TyphoonDefinition withClass: [URLStorage class]];
}
-(id)endpointHTTPMethods
{
return [TyphoonDefinition withClass: [EndpointHTTPMethods class]];
}
-(id)chatImageCheck
{
return [TyphoonDefinition withClass: [ChatImageCheck class]];
}
-(id)endpointURLStrings
{
return [TyphoonDefinition withClass: [EndpointURLStrings class] properties:^(TyphoonDefinition *definition) {
[definition injectProperty:@selector(urlStorage)];
}];
}
-(id)httpRequestOperationFactory
{
return [TyphoonDefinition withClass: [HTTPRequestOperationFactory class] properties:^(TyphoonDefinition* definition) {
[definition injectProperty:@selector(endpointHTTPMethods)];
[definition injectProperty:@selector(endpointURLStrings)];
}];
}
-(id)services
{
return [TyphoonDefinition withClass:[Services class] properties:^(TyphoonDefinition *definition) {
[definition setScope:TyphoonScopeSingleton];
}];
}
@end
堆栈跟踪，第 276 行发生崩溃:
Thread 65, Queue : NSOperationQueue 0x12434e90
#0 0x0473756b in -[__NSDictionaryM objectForKey:] ()
#1 0x0033c2dd in -[TyphoonComponentFactory sharedInstanceForDefinition:fromPool:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Pods/Typhoon/Source/Factory/TyphoonComponentFactory.m:276
#2 0x0033cb34 in -[TyphoonComponentFactory(TyphoonDefinitionRegisterer) objectForDefinition:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Pods/Typhoon/Source/Factory/TyphoonComponentFactory.m:315
#3 0x0033b01d in -[TyphoonComponentFactory componentForKey:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Pods/Typhoon/Source/Factory/TyphoonComponentFactory.m:151
#4 0x046a291d in __invoking___ ()
#5 0x046a282a in -[NSInvocation invoke] ()
#6 0x00335f69 in -[TyphoonBlockComponentFactory forwardInvocation:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Pods/Typhoon/Source/Factory/Block/TyphoonBlockComponentFactory.m:97
#7 0x0469e2da in ___forwarding___ ()
#8 0x0469e0ee in __forwarding_prep_0___ ()
#9 0x00022647 in +[CascadeItemRenderOperation isCurrentProfileWithDictionary:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Shared/CascadeItemRenderOperation.m:166
#10 0x00022d3b in +[CascadeItemRenderOperation countOfUnreadChatsWithDictionary:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Shared/CascadeItemRenderOperation.m:205
#11 0x00021c7c in +[CascadeItemRenderOperation renderWithDictionary:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Shared/CascadeItemRenderOperation.m:79
#12 0x001002b2 in -[GrindrGridViewPreRenderOperation main] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Grindr/GrindrGridViewPreRenderOperation.m:38
#13 0x02d0dc79 in -[__NSOperationInternal _start:] ()
#14 0x02c8a9c8 in -[NSOperation start] ()
#15 0x02d0ff44 in __NSOQSchedule_f ()
#16 0x04d164d0 in _dispatch_client_callout ()
#17 0x04d02fe0 in _dispatch_async_redirect_invoke ()
#18 0x04d164d0 in _dispatch_client_callout ()
#19 0x04d04eb7 in _dispatch_root_queue_drain ()
#20 0x04d05127 in _dispatch_worker_thread2 ()
#21 0x05045dab in _pthread_wqthread ()
相关对象的值:
self:TyphoonBlockComponentFactory 以及注册表中可用的所有相关对象。 定义:“定义:class='AuthenticationDetails'，key='authenticationDetails'” 池: NSDictionary，0 个键/值对 实例:id，未初始化的指针。
这是当时主线程的堆栈 - 还包含 Typhoon 引用:
Thread 1, Queue : com.apple.main-thread
#0 0x05081802 in __psynch_mutexwait ()
#1 0x05047945 in _pthread_mutex_lock ()
#2 0x050477ac in pthread_mutex_lock ()
#3 0x0443a498 in objc_sync_enter ()
#4 0x0033c288 in -[TyphoonComponentFactory sharedInstanceForDefinition:fromPool:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Pods/Typhoon/Source/Factory/TyphoonComponentFactory.m:275
#5 0x0033cb34 in -[TyphoonComponentFactory(TyphoonDefinitionRegisterer) objectForDefinition:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Pods/Typhoon/Source/Factory/TyphoonComponentFactory.m:315
#6 0x0033b01d in -[TyphoonComponentFactory componentForKey:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Pods/Typhoon/Source/Factory/TyphoonComponentFactory.m:151
#7 0x046a291d in __invoking___ ()
#8 0x046a282a in -[NSInvocation invoke] ()
#9 0x00335f69 in -[TyphoonBlockComponentFactory forwardInvocation:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Pods/Typhoon/Source/Factory/Block/TyphoonBlockComponentFactory.m:97
#10 0x0469e2da in ___forwarding___ ()
#11 0x0469e0ee in __forwarding_prep_0___ ()
#12 0x000735e7 in -[Profile(Custom) isMe] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Utils/Profile+Custom.m:74
#13 0x0022a0eb in -[Profile(GrindrGridViewHash) grindrGridViewHash] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Shared/Profile+GrindrGridViewHash.m:84
#14 0x000ff3ed in -[GrindrGridViewPreRenderCache preRenderManagedObjectsForBackgroundExecution:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Grindr/GrindrGridViewPreRenderCache.m:105
#15 0x000ff174 in -[GrindrGridViewPreRenderCache preRenderManagedObjects:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Grindr/GrindrGridViewPreRenderCache.m:87
#16 0x00041c8f in -[GrindrGridView endUpdates] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Shared/GrindrGridView.m:825
#17 0x002343d2 in -[CascadeDataSource controllerDidChangeContent:] at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Grindr/CascadeDataSource.m:137
#18 0x0276e347 in -[NSFetchedResultsController(PrivateMethods) _managedObjectContextDidChange:] ()
#19 0x02d0c049 in __57-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke ()
#20 0x04709f04 in __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ ()
#21 0x04661efb in _CFXNotificationPost ()
#22 0x02c45e41 in -[NSNotificationCenter postNotificationName:object:userInfo:] ()
#23 0x02670a13 in -[NSManagedObjectContext(_NSInternalNotificationHandling) _postObjectsDidChangeNotificationWithUserInfo:] ()
#24 0x0270ffaf in -[NSManagedObjectContext(_NSInternalChangeProcessing) _createAndPostChangeNotification:withDeletions:withUpdates:withRefreshes:] ()
#25 0x0266beb8 in -[NSManagedObjectContext(_NSInternalChangeProcessing) _processRecentChanges:] ()
#26 0x0266b649 in -[NSManagedObjectContext processPendingChanges] ()
#27 0x0269a4cc in -[NSManagedObjectContext(_NestedContextSupport) _parentProcessSaveRequest:inContext:error:] ()
#28 0x02712a14 in __82-[NSManagedObjectContext(_NestedContextSupport) executeRequest:withContext:error:]_block_invoke ()
#29 0x02694b81 in internalBlockToNSManagedObjectContextPerform ()
#30 0x04d164d0 in _dispatch_client_callout ()
#31 0x04d05439 in _dispatch_barrier_sync_f_slow_invoke ()
#32 0x04d164d0 in _dispatch_client_callout ()
#33 0x04d04726 in _dispatch_main_queue_callback_4CF ()
#34 0x0471343e in __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ ()
#35 0x046545cb in __CFRunLoopRun ()
#36 0x046539d3 in CFRunLoopRunSpecific ()
#37 0x046537eb in CFRunLoopRunInMode ()
#38 0x053ee5ee in GSEventRunModal ()
#39 0x053ee42b in GSEventRun ()
#40 0x03513f9b in UIApplicationMain ()
#41 0x0000e704 in main at /Users/nicklocking/Documents/primus-ios/NBFIOSCore/Shared/main.m:18
进一步更新:
Typhoon 似乎默认为 TyphoonScopeObjectGraph，这显然不是线程安全的。我们将所有非单例切换为 TyphoonScopePrototype，现在我们在第 59 行的 TyphoonCallStack -pop 中遇到崩溃，[_storage removeLastObject]。似乎是某种异常，但调试器没有吐出任何有用的东西。
最佳答案
无法评论您的帖子(没有足够的声誉):
是的，如果您从不同的线程创建组件 - 这可能是崩溃的原因。 Typhoon 现在不是线程安全的(我们在对象创建期间使用 NSMutableArray、NSMutableDictionary，它们不是线程安全的)。
您可以通过将 Typhoon 调用包装到串行队列或同步语句中来修复它。或者我们可以在 Typhoon 内部完成它(但这将是 Typhoon 2.0 功能 - 很难同时维护两个版本)
更新:
Typhoon 2.0 现在是线程安全的。
关于objective-c - 在 Typhoon 中创建对象时崩溃，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22674648/