可可Socket編程NSInputStream讀返回0

Question

在我的應用程序，已經設置了流這樣，

(void)connectStream:(NSString *)pHostName PortNo:(int)inPortNo HasInput:(bool)bInput HasOutput:(bool)bOutput{ 




    NSHost *host = [NSHost hostWithName:pHostName]; 

    //host = [NSHost hostWithAddress:pHostName]; 

    [NSStream getStreamsToHost:host port:inPortNo inputStream:&pInputStream 
        outputStream:&pOutputStream]; 

    [pInputStream retain]; 

    [pOutputStream retain]; 

    [pInputStream setDelegate:self]; 

    [pOutputStream setDelegate:self]; 



    bool bUseSSL = YES; 
    if (bUseSSL) 
    { 

     [self setInputStreamSecurity]; 
     [self setOutputStreamSecurity]; 
    } 


    [pOutputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] 
         forMode:NSDefaultRunLoopMode]; 

    [pInputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] 
          forMode:NSDefaultRunLoopMode]; 


    [pInputStream open]; 

    [pOutputStream open]; 

} 

，並像下面來處理事件，

- (void)stream:(NSStream *)theStream handleEvent:(NSStreamEvent)streamEvent{ 

     switch(streamEvent){ 
     case NSStreamEventHasBytesAvailable:{ 
     if([theStream hasBytesAvailable]){ 
       unsigned int len=0; 

       NSUInteger intLen; 
       [theStream getBuffer:&pInputBuffer length:&intLen]; 
       [theStream read:pInputBuffer maxLength:MAX_INPUT_BUFF_LEN]; 

       if(intLen){   
        NSMutableData *data=[[NSMutableData alloc] init]; 
        [data appendBytes:pInputBuffer length:len]; 

        [WebSocketEventData postGotBytesEvent:data Len:len]; 
       }else{ 
        NSError *theError = [theStream streamError]; 
        NSString *pString = [theError localizedDescription]; 
        int errorCode = [theError code]; 


       } 

       } 
    } 
} 

問題是，閱讀或的GetBuffer總回報0，我錯過了什麼？

由於事先

Answer 1

不知道這個問題是與你的情況getBuffer:lenght:什麼，但是這是read:maxLength:應如何使用：

NSInteger bytesRead; 

bytesRead = [theStream read:pInputBuffer maxLength:MAX_INPUT_BUFF_LEN]; 
if (bytesRead > 0) { 
    // Handle input. 
} else if (bytesRead == 0) { 
    // Handle EOF. 
} else { 
    // Handle error. 
}