Yes. I've solved my issue. It seems that the eventlet monkey_patched sockets do not throw any kind of exception when a socket is closed. Since I'm transferring binary data and not ascii, an EOF would not be very logical. I was expecting an error and I also did not know if I the sockets were in Synchronous or Non-Synchronous mode.
Also, eventlet does not have any documentation regarding the native sockets, which complicated things. I have added the necessary logic to check for the empty bytestrings and solved my issue. Thank you anyway. On 19 June 2018 at 05:35, IWAMOTO Toshihiro <iwam...@valinux.co.jp> wrote: > On Thu, 14 Jun 2018 23:42:06 +0900, > Carlos Ferreira wrote: >> >> Hello to all! >> >> I'm having some issues regarding the use of TCP sockets in ryu apps. >> >> After spwaning a TCP server using >> >> hub.spawn(eventlet.serve, eventlet.listen((str(ip), port)), client_handler) >> >> where the client_handler will handle each client request, it seems >> that the TCP Socket passed to the handler, does not work as predicted. >> >> I understand that the sockets are in non-blocking mode and that >> eventlet patches the sockets to make them workable with the coroutines >> mechanism, but it seems that the socket does not raise any kind of >> exception when there's zero data to be read from the underlying >> buffer. If my app keeps calling the recv method from a socket object, >> the recv will continue to return zero. >> >> Is ryu modifying the behaviour of the TCP sockets or is there a >> specific way to use TCP Sockets in Ryu? > > The question is not specific to ryu but rather a generic eventlet question. > > As long as you are using the monkey_patch'd version of socket object, > it should behave as a usual blocking I/O. > > Usually zero bytes reads mean EOF. Please check your code. > > -- > IWAMOTO Toshihiro -- Carlos Miguel Ferreira Researcher at Telecommunications Institute Aveiro - Portugal Work E-mail - c...@av.it.pt Skype & GTalk -> carlosmf...@gmail.com LinkedIn -> http://www.linkedin.com/in/carlosmferreira ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Ryu-devel mailing list Ryu-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ryu-devel
