[erlang-questions] gen_tcp send blocks gen_tcp recv.

Erik Søe Sørensen eriksoe@REDACTED
Mon Sep 3 09:17:10 CEST 2012

Have you considered having one process for sending and one for receiving
(on the same socket)?
Den 03/09/2012 06.47 skrev "Satyam Shekhar" <satyamshekhar@REDACTED>:

> Hi,
> I know this question has been asked many times.
> http://erlang.2086793.n4.nabble.com/Non-blocking-sends-in-gen-tcp-td2114537.html
> https://groups.google.com/forum/?fromgroups=#!topic/erlang-programming/4DBmCK4GAK8
> But my concern is slightly different. I have a separate sending/receiving
> process, P1, for a gen_tcp socket which receives messages it has to send,
> from process P2. There is no acking between the P1 and P2. Data is buffered
> at P2 and data acking is client driven, i.e that client says how much data
> it has received when it reconnects. Right now, P2 sends data to P1 as soon
> as it generates any data, and also adds it to its buffer, so that it can
> send it to the client if the socket gets closed before client receives it.
> The issue is, since the gen_tcp send call is blocking, and P2 might flood
> P1s mailbox at times, received messages(socket in active once mode) from
> the client are delayed quite a bit.
> What is the best way to handle this?
> Regards,
> Satyam Shekhar
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