Hi. i'm starting to use lwip 130rc1 and i have to use socket. I need to use non-blocking socket.
My idea is to use select() , with 2 socket in listen mode inside and 2 udp socket. when a new connection is incoming, add it to select. what do you think about this idea? can you help me to implement it? i have no experience with socket.... Bye, Piero 2008/2/27, Muhamad Ikhwan Ismail <[EMAIL PROTECTED]>: > > > Hi, > > I have successfully integrated lwIP version 1.2.0 in a PowerPC > microcontroller running SMX RTOS > thanks to the support I have gotten from lwIP community. I am now trying > to implement non-blocking socket operation for > connect() and write(). For accept() and read() the socket is now > non-blocking since I use select(). > I am aware that there is such a thread previously, however it ends with > no clear result. > > I am wondering why do we have to block write() from the first place? > > And as for connect(), I am planing to implement the following changes: > > 1. in netconn_connect(), if the O_NONBLOCK flag is set, then use > sys_arch_mbox_try_fetch() and return EINPROGRESS. Then set the netconn state > to NETCONN_CONNECT. Any subsequent connect checks the NETCONN_CONNECT > state and returns EALREADY > > 2. Use the callback function to set the sendevent to plus in the > do_connected(). > > 3. Select() after connection is established will then return a non-zero > nready for the writeset. > The application then call sys_arch_mbox_tryfetch, free the message, reset > the send event to zero and can now begin writing/reading to the socket. > > Is there any changes or conflicts I should be aware of if i do implement > these changes ? > > I am thankful for any advices you guys could offer, > > > ------------------------------ > Need to know the score, the latest news, or you need your Hotmail(R)-get > your "fix". Check it out. <http://www.msnmobilefix.com/Default.aspx> > > _______________________________________________ > lwip-users mailing list > lwip-users@nongnu.org > http://lists.nongnu.org/mailman/listinfo/lwip-users >
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