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//
// Copyright 2017 Garrett D'Amore <garrett@damore.org>
// Copyright 2017 Capitar IT Group BV <info@capitar.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "convey.h"
#include "nng.h"
#include <string.h>
TestMain("REQ/REP pattern", {
int rv;
const char *addr = "inproc://test";
Convey("We can create a REQ socket", {
nng_socket req;
So(nng_req_open(&req) == 0);
Reset({ nng_close(req); });
Convey("Protocols match", {
So(nng_protocol(req) == NNG_PROTO_REQ);
So(nng_peer(req) == NNG_PROTO_REP);
});
Convey("Resend time option id works", {
// Set timeout.
So(nng_setopt_ms(req, NNG_OPT_REQ_RESENDTIME, 10) ==
0);
// Check invalid size
So(nng_setopt(req, NNG_OPT_REQ_RESENDTIME, "", 1) ==
NNG_EINVAL);
});
Convey("Recv with no send fails", {
nng_msg *msg;
rv = nng_recvmsg(req, &msg, 0);
So(rv == NNG_ESTATE);
});
});
Convey("We can create a REP socket", {
nng_socket rep;
So(nng_rep_open(&rep) == 0);
Reset({ nng_close(rep); });
Convey("Protocols match", {
So(nng_protocol(rep) == NNG_PROTO_REP);
So(nng_peer(rep) == NNG_PROTO_REQ);
});
Convey("Send with no recv fails", {
nng_msg *msg;
rv = nng_msg_alloc(&msg, 0);
So(rv == 0);
rv = nng_sendmsg(rep, msg, 0);
So(rv == NNG_ESTATE);
nng_msg_free(msg);
});
Convey("Cannot set resend time", {
So(nng_setopt_ms(rep, NNG_OPT_REQ_RESENDTIME, 100) ==
NNG_ENOTSUP);
});
});
Convey("We can create a linked REQ/REP pair", {
nng_socket req;
nng_socket rep;
So(nng_rep_open(&rep) == 0);
So(nng_req_open(&req) == 0);
Reset({
nng_close(rep);
nng_close(req);
});
So(nng_listen(rep, addr, NULL, 0) == 0);
So(nng_dial(req, addr, NULL, 0) == 0);
Convey("They can REQ/REP exchange", {
nng_msg *ping;
nng_msg *pong;
So(nng_msg_alloc(&ping, 0) == 0);
So(nng_msg_append(ping, "ping", 5) == 0);
So(nng_msg_len(ping) == 5);
So(memcmp(nng_msg_body(ping), "ping", 5) == 0);
So(nng_sendmsg(req, ping, 0) == 0);
pong = NULL;
So(nng_recvmsg(rep, &pong, 0) == 0);
So(pong != NULL);
So(nng_msg_len(pong) == 5);
So(memcmp(nng_msg_body(pong), "ping", 5) == 0);
nng_msg_trim(pong, 5);
So(nng_msg_append(pong, "pong", 5) == 0);
So(nng_sendmsg(rep, pong, 0) == 0);
ping = 0;
So(nng_recvmsg(req, &ping, 0) == 0);
So(ping != NULL);
So(nng_msg_len(ping) == 5);
So(memcmp(nng_msg_body(ping), "pong", 5) == 0);
nng_msg_free(ping);
});
});
Convey("Request cancellation works", {
nng_msg * abc;
nng_msg * def;
nng_msg * cmd;
nng_duration retry = 100; // 100 ms
nng_socket req;
nng_socket rep;
So(nng_rep_open(&rep) == 0);
So(nng_req_open(&req) == 0);
Reset({
nng_close(rep);
nng_close(req);
});
So(nng_setopt_ms(req, NNG_OPT_REQ_RESENDTIME, retry) == 0);
So(nng_setopt_int(req, NNG_OPT_SENDBUF, 16) == 0);
So(nng_msg_alloc(&abc, 0) == 0);
So(nng_msg_append(abc, "abc", 4) == 0);
So(nng_msg_alloc(&def, 0) == 0);
So(nng_msg_append(def, "def", 4) == 0);
So(nng_listen(rep, addr, NULL, 0) == 0);
So(nng_dial(req, addr, NULL, 0) == 0);
So(nng_sendmsg(req, abc, 0) == 0);
So(nng_sendmsg(req, def, 0) == 0);
So(nng_recvmsg(rep, &cmd, 0) == 0);
So(cmd != NULL);
So(nng_sendmsg(rep, cmd, 0) == 0);
So(nng_recvmsg(rep, &cmd, 0) == 0);
So(nng_sendmsg(rep, cmd, 0) == 0);
So(nng_recvmsg(req, &cmd, 0) == 0);
So(nng_msg_len(cmd) == 4);
So(memcmp(nng_msg_body(cmd), "def", 4) == 0);
nng_msg_free(cmd);
});
nng_fini();
})
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