I'm working with NSStream to send and receive single characters over a network connection.
I instantiate the streams both for reading and for writing using CFStreamCreatePairWithSocketToCFHost(...).
The basic working mechanism to send and receive is working fine.
Now I want to create the NSStream only when I need to send or receive something (usually one time every 2 minutes). The first time I create the streams, send the packet, close it and everything work well. Next I try to recreate the NSStream (create a new socket and open the stream on it), the opening function don't work. Since I'm using netcat to test it, I see that when I close the stream using [NSStream close] method, the connection on the server is not closing. How can I force to close the socket? Or there's a better way to do what I'm trying to do?
Use CFWriteStreamSetProperty and CFReadStreamSetProperty to set kCFStreamPropertyShouldCloseNativeSocket to kCFBooleanTrue in order that the underlying socket is closed when the stream is closed.