GCDAsyncSocket的问题

[Scholar0]

iPhone是客户端，接收到服务器指令后 在

-(void)socket:(GCDAsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag

里面处理数据然后再返回给服务器。
但是app会100%崩溃，很奇怪。

代码如下：

#import "CommandClient.h"
#import <UIKit/UIKit.h>  

@implementation CommandClient
+ (CommandClient *)sharedInstance {
    static CommandClient *sharedInstance = nil;
    static dispatch_once_t once;
    dispatch_once(&once, ^{
        sharedInstance = [[self alloc] init];
    });
    return sharedInstance;
}
- (void)initialize {
    
    static dispatch_once_t once;
    dispatch_once(&once, ^{
        NSLog(@"Start Creating GCDAsyncSocket");
        FMUtils = objc_getClass("FMUtils");
        socketClient =[[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:dispatch_get_main_queue()];
    });
}
- (BOOL)startServer {
    NSLog(@"Start startServer GCDAsyncSocket");

    NSError *error;
NSString *host = @"192.168.0.9";
uint16_t port = 8666;
BOOL ret = [socketClient connectToHost:host onPort:port error:&error];
if (!ret) {
    NSLog(@"socketClient Connection: %@", error);
}

return ret;
}

- (void)stopServer {
    NSLog(@"Start stopServer GCDAsyncSocket");
    [socketClient disconnect];
    
    
}


#pragma mark - GCDAsyncSocketDelegate
// 已连接
- (void)socket:(GCDAsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port{
    [socketClient readDataWithTimeout:-1 tag:0];
    
    NSLog(@"Connected: %@:%d", host, port);
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"State" message:@"Connection Server Success!" delegate:self cancelButtonTitle:nil otherButtonTitles:nil];
    [alert addButtonWithTitle:@"Yes"];
    [alert show];

    }
-(void)socket:(GCDAsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag{
           NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
        NSString* sName = [dict objectForKey:@"sName"];
        if ([sName isEqual:@"getSkey"]) {
            NSString* sid = [dict objectForKey:@"sid"];
            NSString* result = [FMUtils encrySkey:sid];
            NSData *requestData = [result dataUsingEncoding:NSUTF8StringEncoding];
            
            
            [sock writeData:requestData withTimeout:-1. tag:0];
            
            
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"State" message:@"send Server Success!" delegate:self cancelButtonTitle:nil otherButtonTitles:nil];  //这两句注释掉就会百分百崩溃
            [alert release]; //这两句注释掉就会百分百崩溃
            
        }
    
        [socketClient readDataWithTimeout:-1 tag:0];
    }
- (void)socket:(GCDAsyncSocket *)sock didWriteDataWithTag:(long)tag
{
    
}
@end

很奇怪 不添加这两句就会崩溃

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"State" message:@"send Server Success!" delegate:self cancelButtonTitle:nil otherButtonTitles:nil];
[alert release];

错误信息：

引用

task_set_exception_ports(B07, 400, F03, 0, 0) failed with error (4: (os/kern) invalid argument)

而且我测试了下，就算添加上UIAlertView这两句代码，服务器不停的发包过来的情况下，只要滑动界面就会崩溃

请问大家这是什么问题，100分送上

[chuchuzinnia]

应该是内存不够了。闪退了。用上多线程。 跟UIAlertview没有关系

[kebing1011]

你使用方法有错误，didReadData会经常调用啊，数据不是一下子就全部过来的，一次读写是有buffer大小的。 就是说，每次didReadData收到的data不一定是完整的一次对方的write过来的。 比如对方写入2048 kb的数据，每次didReadData 可能才收到 1024的大小，你要收集至完整的一次包。 一般Demo里只是发送一个简单字符串，当然一次就能过来了。 希望你有所帮助。

[qq_29470295]

你会到主线程 在操作ui试试