How do I setup CFReadStreamRead to timeout in iOS?

Question

I have legacy code using CFReadStreamRead on the iOS, but if there is no/loss of a connection CFReadStreamRead will block forever. How do I setup CFReadStreamRead to timeout?

Thanks in advance

Answer 1

I ended up using a home grown timeout. The code was something like this:

uint64_t start = get_current_time();

while(TRUE) {
     if(CFReadStreamHasBytesAvailable(stream) == TRUE) {
          while ((bytes_read = CFReadStreamRead(stream, buffer, read_size)) > 0) {
               // do work!
          }
          start = get_current_time();
     }
     uint64_t elapsed = get_current_time() - start;
     if(elapsed > timeout) {
          break;
     }
     sleep(10);
}