游戏中心的僵尸[添加PlayersToMatch]在20个班轮项目中

Question

我的僵尸已经超出了我的深度。 findMatchForRequest:不足以实现一致的匹配，因此使用 [addPlayersToMatch:matchRequest:completionHandler:] ，其中可能崩溃：

-[__NSMallocBlock__ intValue]: unrecognized selector sent to instance
-[CFString retain]: message sent to deallocated instance // NSZombieEnabled

以下是 整个'最低工作示例'项目（on Dropbox），它迟早会崩溃。

@implementation GameCenterHelper { GKMatch* _currentMatch; }
+ (GameCenterHelper *)sharedInstance {
    static GameCenterHelper* sharedHelper;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^ {
        sharedHelper = [GameCenterHelper new];
    });
    return sharedHelper;
}
- (void)authenticateLocalPlayer {
    [GKLocalPlayer localPlayer].authenticateHandler = ^(UIViewController *loginViewController, NSError *error) {
        [self findMatch];
    };
}
- (void)findMatch {
    GKMatchRequest *request = [GKMatchRequest new];
    request.minPlayers = 2;
    request.maxPlayers = 4;
    [[GKMatchmaker sharedMatchmaker] findMatchForRequest:request withCompletionHandler:^(GKMatch *match, NSError *error) {
        _currentMatch = match;
        _currentMatch.delegate = self;
    }];
}
- (void)addPlayersToMatch {
    GKMatchRequest *request = [GKMatchRequest new];
    request.minPlayers = 2;
    request.maxPlayers = 4;
    [[GKMatchmaker sharedMatchmaker] addPlayersToMatch:_currentMatch matchRequest:request completionHandler:nil];
}
- (void)match:(GKMatch *)match player:(NSString *)playerID didChangeState:(GKPlayerConnectionState)state {
    [self addPlayersToMatch];
}
@end

我是否遗漏了块内存管理的基本内容？以上内容被调用：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    [[GameCenterHelper sharedInstance] authenticateLocalPlayer];
    return YES;
}

此处没有错误处理，必须在iTunesConnect上创建一个模型应用程序来体验崩溃，否则不会返回GKMatch。我还确保Xcode和iTunesConnect之间的捆绑版本一致，即1.0 vs 1.0.0。

痕量

Zombie陷入Instruments：

从上面Instruments，Event Type，Malloc看到的每个Release的{​​{1}}堆叠跟踪：

Zombie 1的

Malloc：

RefCt

<{> 0 libsystem_malloc.dylib malloc_zone_malloc 1 CoreFoundation _CFRuntimeCreateInstance 2 CoreFoundation __CFStringCreateImmutableFunnel3 3 CoreFoundation CFStringCreateCopy 4 CoreFoundation _CFStringCreateWithFormatAndArgumentsAux 5 Foundation -[NSPlaceholderString initWithFormat:locale:arguments:] 6 Foundation -[NSString initWithFormat:] 7 GameKitServices -[GKConnectionInternal connectParticipantsWithConnectionData:withSessionInfo:] 8 GameCenterFoundation -[GKMatch connectToPeersWithDictionaries:version:sessionToken:cdxTicket:] 9 GameCenterFoundation __104-[GKMatchmaker matchWithRequest:currentMatch:currentPlayerIDs:serverHosted:rematchID:completionHandler:]_block_invoke_2 10 CoreFoundation __invoking___ 11 CoreFoundation -[NSInvocation invoke] 12 GameCenterFoundation -[NSInvocation(GKProxyHelpers) _gkInvokeOnce] 13 GameCenterFoundation __53-[GKDaemonProxy connection:handleInvocation:isReply:]_block_invoke 14 libdispatch.dylib _dispatch_call_block_and_release 15 libdispatch.dylib _dispatch_client_callout 16 libdispatch.dylib _dispatch_main_queue_callback_4CF 17 CoreFoundation __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ 18 CoreFoundation __CFRunLoopRun 19 CoreFoundation CFRunLoopRunSpecific 20 CoreFoundation CFRunLoopRunInMode 21 GraphicsServices GSEventRunModal 22 UIKit UIApplicationMain 23 GameCenterBug main /Volumes/Lion2/Developer/Objective-C/GameCenterBug/GameCenterBug/main.m:7 24 libdyld.dylib start Release 0：

RefCt

在 0 CoreFoundation -[__NSCFString release] 1 GameKitServices -[GKConnectionInternal connectParticipantsWithConnectionData:withSessionInfo:] 2 GameCenterFoundation -[GKMatch connectToPeersWithDictionaries:version:sessionToken:cdxTicket:] 3 GameCenterFoundation __104-[GKMatchmaker matchWithRequest:currentMatch:currentPlayerIDs:serverHosted:rematchID:completionHandler:]_block_invoke_2 4 CoreFoundation __invoking___ 5 CoreFoundation -[NSInvocation invoke] 6 GameCenterFoundation -[NSInvocation(GKProxyHelpers) _gkInvokeOnce] 7 GameCenterFoundation __53-[GKDaemonProxy connection:handleInvocation:isReply:]_block_invoke 8 libdispatch.dylib _dispatch_call_block_and_release 9 libdispatch.dylib _dispatch_client_callout 10 libdispatch.dylib _dispatch_main_queue_callback_4CF 11 CoreFoundation __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ 12 CoreFoundation __CFRunLoopRun 13 CoreFoundation CFRunLoopRunSpecific 14 CoreFoundation CFRunLoopRunInMode 15 GraphicsServices GSEventRunModal 16 UIKit UIApplicationMain 17 GameCenterBug main /Volumes/Lion2/Developer/Objective-C/GameCenterBug/GameCenterBug/main.m:7 18 libdyld.dylib start -1：

的

Zombie

RefCt

---

相同的，ARC之前的问题（有一个可疑的答案）：-[CFString retain]: message sent to deallocated instance 0x215076c0

相关：

• Game Center Finding a Match Programmatically
• Can't add additional players with [GKMatchmaker addPlayersToMatch] on iPhone/IOS 5
块上的
• Matt Gallagher's和ThirdCog's博客文章。

Answer 1

几个小时前，苹果公司表示该漏洞已得到修复，修复程序将在下一个iOS版本之一。