| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| /* 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 = static_cast<struct test *>(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; |
| } |