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//
// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 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 <string.h>
#include <nng/nng.h>
#include <nng/protocol/pubsub0/pub.h>
#include <nng/protocol/pubsub0/sub.h>
#include <nng/supplemental/util/platform.h>
#include "convey.h"
#include "stubs.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("PUB/SUB pattern", {
const char *addr = "inproc://test";
Reset({ nng_fini(); });
Convey("We can create a PUB socket", {
nng_socket pub;
So(nng_pub_open(&pub) == 0);
Reset({ nng_close(pub); });
Convey("Recv fails", {
nng_msg *msg;
So(nng_recvmsg(pub, &msg, 0) == NNG_ENOTSUP);
});
Convey("It cannot subscribe", {
So(nng_setopt(pub, NNG_OPT_SUB_SUBSCRIBE, "", 0) ==
NNG_ENOTSUP);
});
Convey("It cannot unsubscribe", {
So(nng_setopt(pub, NNG_OPT_SUB_UNSUBSCRIBE, "", 0) ==
NNG_ENOTSUP);
});
});
Convey("We can create a SUB socket", {
nng_socket sub;
So(nng_sub_open(&sub) == 0);
Reset({ nng_close(sub); });
Convey("Send fails", {
nng_msg *msg;
So(nng_msg_alloc(&msg, 0) == 0);
So(nng_sendmsg(sub, msg, 0) == NNG_ENOTSUP);
nng_msg_free(msg);
});
Convey("It can subscribe", {
So(nng_setopt(sub, NNG_OPT_SUB_SUBSCRIBE, "ABC", 3) ==
0);
So(nng_setopt(sub, NNG_OPT_SUB_SUBSCRIBE, "", 0) == 0);
Convey("And it can unsubscribe", {
So(nng_setopt(sub, NNG_OPT_SUB_UNSUBSCRIBE,
"ABC", 3) == 0);
So(nng_setopt(sub, NNG_OPT_SUB_UNSUBSCRIBE, "",
0) == 0);
So(nng_setopt(sub, NNG_OPT_SUB_UNSUBSCRIBE, "",
0) == NNG_ENOENT);
So(nng_setopt(sub, NNG_OPT_SUB_UNSUBSCRIBE,
"HELLO", 0) == NNG_ENOENT);
});
});
});
Convey("We can create a linked PUB/SUB pair", {
nng_socket pub;
nng_socket sub;
So(nng_pub_open(&pub) == 0);
So(nng_sub_open(&sub) == 0);
Reset({
nng_close(pub);
nng_close(sub);
});
// Most applications will usually have the pub listen,
// and the sub dial. However, this creates a problem
// for our tests, since we can wind up trying to push
// data before the pipe is fully registered (the accept
// runs asynchronously.)
So(nng_listen(sub, addr, NULL, 0) == 0);
So(nng_dial(pub, addr, NULL, 0) == 0);
nng_msleep(200); // give time for connecting threads
Convey("Subs can receive from pubs", {
nng_msg *msg;
So(nng_setopt(sub, NNG_OPT_SUB_SUBSCRIBE, "/some/",
strlen("/some/")) == 0);
So(nng_setopt_ms(sub, NNG_OPT_RECVTIMEO, 90) == 0);
So(nng_msg_alloc(&msg, 0) == 0);
APPENDSTR(msg, "/some/like/it/hot");
So(nng_sendmsg(pub, msg, 0) == 0);
So(nng_recvmsg(sub, &msg, 0) == 0);
CHECKSTR(msg, "/some/like/it/hot");
nng_msg_free(msg);
So(nng_msg_alloc(&msg, 0) == 0);
APPENDSTR(msg, "/somewhere/over/the/rainbow");
CHECKSTR(msg, "/somewhere/over/the/rainbow");
So(nng_sendmsg(pub, msg, 0) == 0);
So(nng_recvmsg(sub, &msg, 0) == NNG_ETIMEDOUT);
So(nng_msg_alloc(&msg, 0) == 0);
APPENDSTR(msg, "/some/day/some/how");
CHECKSTR(msg, "/some/day/some/how");
So(nng_sendmsg(pub, msg, 0) == 0);
So(nng_recvmsg(sub, &msg, 0) == 0);
CHECKSTR(msg, "/some/day/some/how");
nng_msg_free(msg);
});
Convey("Subs using NNG_FLAG_NONBLOCK and no sub", {
nng_msg *msg;
So(nng_msg_alloc(&msg, 0) == 0);
APPENDSTR(msg, "/some/don't/like/it");
So(nng_sendmsg(pub, msg, 0) == 0);
So(nng_recvmsg(sub, &msg, NNG_FLAG_NONBLOCK) == NNG_EAGAIN);
});
Convey("Subs using NNG_FLAG_NONBLOCK and empty sub", {
nng_msg *msg;
char *buf;
size_t size;
So(nng_setopt(sub, NNG_OPT_SUB_SUBSCRIBE, "", 0) == 0);
So(nng_recvmsg(sub, &msg, NNG_FLAG_NONBLOCK) == NNG_EAGAIN);
So(nng_recv(sub, &buf, &size, NNG_FLAG_NONBLOCK | NNG_FLAG_ALLOC) == NNG_EAGAIN);
});
Convey("Subs without subscriptions don't receive", {
nng_msg *msg;
So(nng_setopt_ms(sub, NNG_OPT_RECVTIMEO, 90) == 0);
So(nng_msg_alloc(&msg, 0) == 0);
APPENDSTR(msg, "/some/don't/like/it");
So(nng_sendmsg(pub, msg, 0) == 0);
So(nng_recvmsg(sub, &msg, 0) == NNG_ETIMEDOUT);
});
});
Convey("Subs in raw receive", {
nng_msg * msg;
nng_socket pub;
nng_socket sub;
bool raw;
So(nng_pub_open(&pub) == 0);
So(nng_sub_open_raw(&sub) == 0);
Reset({
nng_close(pub);
nng_close(sub);
});
// Most applications will usually have the pub listen,
// and the sub dial. However, this creates a problem
// for our tests, since we can wind up trying to push
// data before the pipe is fully registered (the accept
// runs asynchronously.)
So(nng_listen(sub, addr, NULL, 0) == 0);
So(nng_dial(pub, addr, NULL, 0) == 0);
nng_msleep(200); // give time for connecting threads
So(nng_setopt_ms(sub, NNG_OPT_RECVTIMEO, 90) == 0);
So(nng_getopt_bool(sub, NNG_OPT_RAW, &raw) == 0);
So(raw == true);
So(nng_msg_alloc(&msg, 0) == 0);
APPENDSTR(msg, "/some/like/it/raw");
So(nng_sendmsg(pub, msg, 0) == 0);
So(nng_recvmsg(sub, &msg, 0) == 0);
CHECKSTR(msg, "/some/like/it/raw");
nng_msg_free(msg);
});
})
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