Question

这是问题所在。当我的应用程序启动时，我在端口5000连接到server1。我将数据发送到server1。 Server1发回数据。 Server1关闭连接。 inputStream发生NSStreamEventEndEncountered事件。然后我在端口5001连接到server2。我尝试将数据发送到server2，但数据最终转到server1。不知何故，inputStream在端口5001连接，我的outputStream连接在5000.我做错了什么？

- (void) initNetworkCommunication: (uint32_t)port {
    CFReadStreamRef readStream;
    CFWriteStreamRef writeStream;
    CFStreamCreatePairWithSocketToHost(NULL, (CFStringRef)@"localhost", port, &readStream, &writeStream);
    inputStream = (NSInputStream *)readStream;
    outputStream = (NSOutputStream *)writeStream;
    [inputStream setDelegate:self];
    [outputStream setDelegate:self];
    [inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [inputStream open];
    [outputStream open];
}

- (void) onClientConnectionLost {
    if (atServer1 == YES) {
        atServer1 = NO;
        [self initNetworkCommunication: 5001];
    }
    if (atServer1 == NO) {
        atServer1 = YES;
        [self initNetworkCommunication: 5000];
    }
}

- (void)stream:(NSStream *)theStream handleEvent:(NSStreamEvent)streamEvent {
    switch (streamEvent) {
        case NSStreamEventOpenCompleted:
            NSLog(@"Stream opened");
            break;
        case NSStreamEventHasBytesAvailable:            
            if (theStream == inputStream) {
                //handle packets...             
            }
            break;
        case NSStreamEventErrorOccurred:
            NSLog(@"Can not connect to the host!");
            break;
        case NSStreamEventEndEncountered:
            if (theStream == inputStream) {
                [theStream close];
                [theStream removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
                [theStream release];
                theStream = nil;

                [outputStream close];
                [outputStream removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
                [outputStream release];
                outputStream = nil;

                [self onClientConnectionLost];            
            }
            break;
        default:
            NSLog(@"Unknown event");
    }
}

Answer 1

- (void) onClientConnectionLost {
if (atServer1 == YES) {
    atServer1 = NO;
    [self initNetworkCommunication: 5001];
}
else if (atServer1 == NO) {
    atServer1 = YES;
    [self initNetworkCommunication: 5000];
}

}

在你的旧代码上...当atServer1 = YES时，它将执行第一个if语句....它将atServer1设置为NO ...所以第二个if语句为TRUE ..所以它也会执行那个..

NSOutputStream无法关闭？

1 个答案: