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//
// Copyright 2017 Garrett D'Amore <garrett@damore.org>
//
// 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>
#define APPENDSTR(m, s) nng_msg_append(m, s, strlen(s))
#define CHECKSTR(m, s) \
So(nng_msg_len(m) == strlen(s)); \
So(memcmp(nng_msg_body(m), s, strlen(s)) == 0)
TestMain("BUS pattern", {
const char *addr = "inproc://test";
Reset({ nng_fini(); });
Convey("We can create a BUS socket", {
nng_socket bus;
So(nng_bus_open(&bus) == 0);
Reset({ nng_close(bus); });
Convey("Protocols match", {
So(nng_protocol(bus) == NNG_PROTO_BUS);
So(nng_peer(bus) == NNG_PROTO_BUS);
});
});
Convey("We can create a linked BUS topology", {
nng_socket bus1;
nng_socket bus2;
nng_socket bus3;
uint64_t rtimeo;
So(nng_bus_open(&bus1) == 0);
So(nng_bus_open(&bus2) == 0);
So(nng_bus_open(&bus3) == 0);
Reset({
nng_close(bus1);
nng_close(bus2);
nng_close(bus3);
});
So(nng_listen(bus1, addr, NULL, 0) == 0);
So(nng_dial(bus2, addr, NULL, 0) == 0);
So(nng_dial(bus3, addr, NULL, 0) == 0);
rtimeo = 50000;
So(nng_setopt(
bus1, NNG_OPT_RCVTIMEO, &rtimeo, sizeof(rtimeo)) == 0);
rtimeo = 50000;
So(nng_setopt(
bus2, NNG_OPT_RCVTIMEO, &rtimeo, sizeof(rtimeo)) == 0);
rtimeo = 50000;
So(nng_setopt(
bus3, NNG_OPT_RCVTIMEO, &rtimeo, sizeof(rtimeo)) == 0);
Convey("Messages delivered", {
nng_msg *msg;
// This is just a poor man's sleep.
So(nng_recvmsg(bus1, &msg, 0) == NNG_ETIMEDOUT);
So(nng_recvmsg(bus2, &msg, 0) == NNG_ETIMEDOUT);
So(nng_recvmsg(bus3, &msg, 0) == NNG_ETIMEDOUT);
So(nng_msg_alloc(&msg, 0) == 0);
APPENDSTR(msg, "99bits");
So(nng_sendmsg(bus2, msg, 0) == 0);
So(nng_recvmsg(bus1, &msg, 0) == 0);
CHECKSTR(msg, "99bits");
nng_msg_free(msg);
So(nng_recvmsg(bus3, &msg, 0) == NNG_ETIMEDOUT);
So(nng_msg_alloc(&msg, 0) == 0);
APPENDSTR(msg, "onthe");
So(nng_sendmsg(bus1, msg, 0) == 0);
So(nng_recvmsg(bus2, &msg, 0) == 0);
CHECKSTR(msg, "onthe");
nng_msg_free(msg);
So(nng_recvmsg(bus3, &msg, 0) == 0);
CHECKSTR(msg, "onthe");
nng_msg_free(msg);
});
});
})
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