OCaml non-blocking client socket

问题

Is there a way to use a client socket in a non blocking way.

For example, if I create a socket for a client to connect on a server and that I do recursive recv on that socket, the last call of Unix.recv will block when no data is send and if the connection is not closed by the server.

In C, you can specify flags for both :

• socket() and use the SOCK_NONBLOCK flag ORed with the socket type
• or receiv() with the MSG_DONTWAIT flags.

I have looked here :

• http://caml.inria.fr/pub/docs/manual-ocaml/libref/Unix.html#TYPEsocket_bool_option
• http://caml.inria.fr/pub/docs/manual-ocaml/libref/Unix.html#TYPEsocket_type
• http://caml.inria.fr/pub/docs/manual-ocaml/libref/Unix.html#TYPEmsg_flag
• https://ocaml.github.io/ocamlunix/ocamlunix.html#sec119

But I could not find any informations on this.

回答1:

Use Unix.set_nonblock and Unix.clear_nonblock.

来源：https://stackoverflow.com/questions/39613902/ocaml-non-blocking-client-socket