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/*
*
* Copyright 2015-2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* Test of gpr thread support. */
#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpc/support/thd.h>
#include <grpc/support/time.h>
#include <stdio.h>
#include <stdlib.h>
#include "test/core/util/test_config.h"
#define NUM_THREADS 300
struct test {
gpr_mu mu;
int n;
int is_done;
gpr_cv done_cv;
};
/* A Thread body. Decrement t->n, and if is becomes zero, set t->done. */
static void thd_body(void *v) {
struct test *t = v;
gpr_mu_lock(&t->mu);
t->n--;
if (t->n == 0) {
t->is_done = 1;
gpr_cv_signal(&t->done_cv);
}
gpr_mu_unlock(&t->mu);
}
static void thd_body_joinable(void *v) {}
/* Test thread options work as expected */
static void test_options(void) {
gpr_thd_options options = gpr_thd_options_default();
GPR_ASSERT(!gpr_thd_options_is_joinable(&options));
GPR_ASSERT(gpr_thd_options_is_detached(&options));
gpr_thd_options_set_joinable(&options);
GPR_ASSERT(gpr_thd_options_is_joinable(&options));
GPR_ASSERT(!gpr_thd_options_is_detached(&options));
gpr_thd_options_set_detached(&options);
GPR_ASSERT(!gpr_thd_options_is_joinable(&options));
GPR_ASSERT(gpr_thd_options_is_detached(&options));
}
/* Test that we can create a number of threads and wait for them. */
static void test(void) {
int i;
gpr_thd_id thd;
gpr_thd_id thds[NUM_THREADS];
struct test t;
gpr_thd_options options = gpr_thd_options_default();
gpr_mu_init(&t.mu);
gpr_cv_init(&t.done_cv);
t.n = NUM_THREADS;
t.is_done = 0;
for (i = 0; i < NUM_THREADS; i++) {
GPR_ASSERT(gpr_thd_new(&thd, &thd_body, &t, NULL));
}
gpr_mu_lock(&t.mu);
while (!t.is_done) {
gpr_cv_wait(&t.done_cv, &t.mu, gpr_inf_future(GPR_CLOCK_REALTIME));
}
gpr_mu_unlock(&t.mu);
GPR_ASSERT(t.n == 0);
gpr_thd_options_set_joinable(&options);
for (i = 0; i < NUM_THREADS; i++) {
GPR_ASSERT(gpr_thd_new(&thds[i], &thd_body_joinable, NULL, &options));
}
for (i = 0; i < NUM_THREADS; i++) {
gpr_thd_join(thds[i]);
}
}
/* ------------------------------------------------- */
int main(int argc, char *argv[]) {
grpc_test_init(argc, argv);
test_options();
test();
return 0;
}
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