ios writing fast to stream

Question

I'm having problems when looping the code below:

    NSString *response  = [NSString stringWithFormat:@"{\"id\":\"%@\",\"type\":\"%@\",\"msg\":\"%@\"}",userID, method, msg];
    NSData *data = [[NSData alloc] initWithData:[response dataUsingEncoding:NSASCIIStringEncoding]];
    [outputStream write:[data bytes] maxLength:[data length]];

This is how i open the stream:

// Open connection to server
- (void)initNetworkCommunication {
    isConnected = TRUE;
    CFReadStreamRef readStream;
    CFWriteStreamRef writeStream;
    CFStreamCreatePairWithSocketToHost(NULL, (CFStringRef)@"url.com", 8080, &readStream, &writeStream);
    inputStream = (__bridge NSInputStream *)readStream;
    outputStream = (__bridge NSOutputStream *)writeStream;

    [inputStream setDelegate:self];
    [outputStream setDelegate:self];

    [inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];

    [inputStream open];
    [outputStream open];
}

The problem is that when writing to the stream fast it combines all messages into one, my server can only parse one JSON at the time.

Is there a way to implement that only 1 response string is sent at a time? Like a queue?

How do people usually solve this?

score 1 · Accepted Answer · edited May 23 '17 at 12:10

1

If you 'flush' your output stream that should solve your problem. Here is a similar question that suggests you add "\n" or "\r\n" to your string to flush it.

edited May 23 '17 at 12:10

Community

1
1

answered Oct 29 '13 at 06:07

Ben Avery

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ios writing fast to stream

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