在tweak中插入GCDAsyncSocket的问题

想要完成的功能:

在一个APP中插入一个TCP Socket,然后连接到我的Server,可以远程接受我的指令进行一些操作。

创建一个CommandClient类

CommandClient.h


#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];
            
        }
    
        [socketClient readDataWithTimeout:-1 tag:0];
    }
- (void)socket:(GCDAsyncSocket *)sock didWriteDataWithTag:(long)tag
{
    
}
@end


xm文件:


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

%hook UIApplication
- (id)init {
    self = %orig;
    if (self) {
        // init server when launched
        [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationDidFinishLaunchingNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *note) {
            [[CommandClient sharedInstance] initialize];
            [[CommandClient sharedInstance] startServer];
        }];
        
        // start/stop server for background
        [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationDidEnterBackgroundNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *note) {
            [[CommandClient sharedInstance]  stopServer];
        }];
        [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationWillEnterForegroundNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *note) {
            [[CommandClient sharedInstance] startServer];
        }];
    }
    return self;
}
%end

不添加这两句就百分百崩溃

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

错误信息:

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

而且我测试了下,不停的■■的过程中,只要滑动界面,也会崩溃。

我对iOS的机制不太了解,狗神,请问哪里做错了?

你是怎么发现自动断开的?

我自己写的服务器终端,能看到断开反馈啊。
刚刚测试了下,好像是没有keepalive,但是我印象中,TCP连接就算连接上什么都不做,也不会不到1分钟就断开把