Re: Trying to use NSStream -another question

FROM : Development
DATE : Sun Jan 13 23:41:02 2008

Below is a snippet of the code I'm using for getting the incoming data 
from the stream. It is cutting download speed from what it should be 
at around 200Kbps to 22 - 30 Kbps.. I know it is because it reads the 
data one byte at a time but my attempts to have it read all bytes 
available have produced much failure. Can any one suggest how to speed 
this piece of code up? (The main problem I've been having is that if 
it reads the whole buffer I cannot seem to find the \r\n any where, 
and so the program cannot find the end of the message from the server. 
Also when I tre the getBuffer:length: function, the length I get seems 
always to be 0.


- (void)stream:(NSStream *)aStream handleEvent:
(NSStreamEvent)streamEvent {
    NSInputStream * instream;
   NSString * error;
    switch(streamEvent) {
        case NSStreamEventHasBytesAvailable:;

            uint8_t oneByte;
            int actuallyRead = 0;
            instream = (NSInputStream *)aStream;
            if (!dataBuffer) {
                dataBuffer = [[NSMutableData alloc] initWithCapacity:
2048];
            }
            actuallyRead = [istream read:&oneByte maxLength:1]; <- if 
I set max length to 2048 it crashes
            if (actuallyRead == 1) {
                [dataBuffer appendBytes:&oneByte length:1];
            }

               if (oneByte == '\n' || oneByte == '\r') {
                   [self newBytesAvailable:dataBuffer];
                   [dataBuffer release];
                   dataBuffer = nil;
                   }
            break;