Florian Lüke
b6a2ffe5d0
git-subtree-dir: external/nng git-subtree-split: 29b73962b939a6fbbf6ea8d5d7680bb06d0eeb99
139 lines
2.9 KiB
C
139 lines
2.9 KiB
C
//
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// Copyright 2022 Staysail Systems, Inc. <info@staysail.tech>
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// Copyright 2018 Capitar IT Group BV <info@capitar.com>
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//
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// This software is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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#include <nng/nng.h>
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#include <nng/supplemental/util/platform.h>
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#include "convey.h"
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// Notify tests for verifying condvars.
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struct notifyarg {
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int did;
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nng_duration when;
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nng_mtx * mx;
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nng_cv * cv;
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};
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void
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notifyafter(void *a)
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{
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struct notifyarg *na = a;
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nng_msleep(na->when);
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nng_mtx_lock(na->mx);
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na->did = 1;
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nng_cv_wake(na->cv);
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nng_mtx_unlock(na->mx);
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}
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struct notifyarg arg;
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nng_thread * thr;
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static void
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test_sync(void)
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{
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Convey("Mutexes work", {
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nng_mtx *mx;
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So(nng_mtx_alloc(&mx) == 0);
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Reset({ nng_mtx_free(mx); });
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Convey("We can lock and unlock a mutex", {
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nng_mtx_lock(mx);
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So(1);
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nng_mtx_unlock(mx);
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So(1);
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Convey("And then lock it again", {
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nng_mtx_lock(mx);
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So(1);
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nng_mtx_unlock(mx);
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So(1);
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});
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});
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Convey("Things block properly", {
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So(nng_mtx_alloc(&arg.mx) == 0);
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So(nng_cv_alloc(&arg.cv, arg.mx) == 0);
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arg.did = 0;
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arg.when = 0;
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nng_mtx_lock(arg.mx);
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So(nng_thread_create(&thr, notifyafter, &arg) == 0);
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nng_msleep(10);
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So(arg.did == 0);
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nng_mtx_unlock(arg.mx);
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nng_msleep(10);
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nng_mtx_lock(arg.mx);
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while (!arg.did) {
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nng_cv_wait(arg.cv);
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}
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So(arg.did != 0);
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nng_mtx_unlock(arg.mx);
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nng_thread_destroy(thr);
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nng_cv_free(arg.cv);
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nng_mtx_free(arg.mx);
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})
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});
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Convey("Condition variables work", {
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So(nng_mtx_alloc(&arg.mx) == 0);
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So(nng_cv_alloc(&arg.cv, arg.mx) == 0);
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Reset({
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nng_cv_free(arg.cv);
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nng_mtx_free(arg.mx);
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});
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Convey("Notification works", {
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arg.did = 0;
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arg.when = 10;
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So(nng_thread_create(&thr, notifyafter, &arg) == 0);
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nng_mtx_lock(arg.mx);
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if (!arg.did) {
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nng_cv_wait(arg.cv);
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}
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nng_mtx_unlock(arg.mx);
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nng_thread_destroy(thr);
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So(arg.did == 1);
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});
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Convey("Timeout works", {
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arg.did = 0;
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arg.when = 200;
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So(nng_thread_create(&thr, notifyafter, &arg) == 0);
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nng_mtx_lock(arg.mx);
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if (!arg.did) {
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nng_cv_until(arg.cv, nng_clock() + 10);
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}
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So(arg.did == 0);
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nng_mtx_unlock(arg.mx);
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nng_thread_destroy(thr);
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});
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Convey("Empty timeout is EAGAIN", {
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nng_mtx_lock(arg.mx);
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So(nng_cv_until(arg.cv, 0) == NNG_EAGAIN);
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nng_mtx_unlock(arg.mx);
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});
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Convey("Not running works", {
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arg.did = 0;
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arg.when = 1;
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nng_mtx_lock(arg.mx);
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if (!arg.did) {
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nng_cv_until(arg.cv, nng_clock() + 10);
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}
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So(arg.did == 0);
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nng_mtx_unlock(arg.mx);
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});
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});
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}
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TestMain(
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"Synchronization", { Convey("Synchronization works", { test_sync(); }); })
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