| /* |
| * |
| * Copyright 2015, 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; |
| } |