| // |
| // |
| // 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 "src/core/lib/gprpp/thd.h" |
| |
| #include "gtest/gtest.h" |
| |
| #include <grpc/support/sync.h> |
| #include <grpc/support/time.h> |
| |
| #include "test/core/util/test_config.h" |
| |
| #define NUM_THREADS 100 |
| |
| 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_body1(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); |
| } |
| |
| // Test that we can create a number of threads, wait for them, and join them. |
| static void test1(void) { |
| grpc_core::Thread thds[NUM_THREADS]; |
| struct test t; |
| gpr_mu_init(&t.mu); |
| gpr_cv_init(&t.done_cv); |
| t.n = NUM_THREADS; |
| t.is_done = 0; |
| for (auto& th : thds) { |
| th = grpc_core::Thread("grpc_thread_body1_test", &thd_body1, &t); |
| th.Start(); |
| } |
| 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); |
| for (auto& th : thds) { |
| th.Join(); |
| } |
| ASSERT_EQ(t.n, 0); |
| gpr_mu_destroy(&t.mu); |
| gpr_cv_destroy(&t.done_cv); |
| } |
| |
| static void thd_body2(void* /*v*/) {} |
| |
| // Test that we can create a number of threads and join them. |
| static void test2(void) { |
| grpc_core::Thread thds[NUM_THREADS]; |
| for (auto& th : thds) { |
| bool ok; |
| th = grpc_core::Thread("grpc_thread_body2_test", &thd_body2, nullptr, &ok); |
| ASSERT_TRUE(ok); |
| th.Start(); |
| } |
| for (auto& th : thds) { |
| th.Join(); |
| } |
| } |
| |
| // ------------------------------------------------- |
| |
| TEST(ThdTest, MainTest) { |
| test1(); |
| test2(); |
| } |
| |
| int main(int argc, char** argv) { |
| grpc::testing::TestEnvironment env(&argc, argv); |
| ::testing::InitGoogleTest(&argc, argv); |
| return RUN_ALL_TESTS(); |
| } |