2013/4/22 Marco van de Voort <mar...@stack.nl> > In our previous episode, Xiangrong Fang said: > > I am writing a redis client in fpc and found that even when the > connection > > is closed by server (via redis CLIENT KILL), > > I don't know the redis protocol is, but "CLIENT KILL" sounds like redis > protocol, while you are trying to detect disconnect at socket level. And is > your socket layer really connection oriented ? >
Yes, it is redis protocol. I can only be sure that it is TCP based. > IOW does the remote server really actively close the socket? > > Maybe stracing the application during a disconnect event might yield some > more information. > I will study stracing if necessary. But will simple "netstat" show the status of a socket? > > > How do I tell if a socket is still connected or not? > > Limit the timeout time (some socketoption or ioctl iirc, search the web), > send something, and wait the timeout time. Then read something. > I am using blocking mode, it just return immediately.
_______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
