| /* |
| * |
| * 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 local storage support. */ |
| |
| #include "src/core/lib/gpr/tls.h" |
| |
| #include <array> |
| |
| #include <gtest/gtest.h> |
| |
| #include "src/core/lib/gprpp/thd.h" |
| #include "test/core/util/test_config.h" |
| |
| struct BiggerThanMachineWord { |
| size_t a, b; |
| uint8_t c; |
| }; |
| |
| static GPR_THREAD_LOCAL(BiggerThanMachineWord) test_var; |
| // Fails to compile: static GPR_THREAD_LOCAL(std::unique_ptr<char>) non_trivial; |
| |
| namespace { |
| void thd_body(void*) { |
| for (size_t i = 0; i < 100000; i++) { |
| BiggerThanMachineWord next = {i, i, uint8_t(i)}; |
| test_var = next; |
| BiggerThanMachineWord read = test_var; |
| ASSERT_EQ(read.a, i); |
| ASSERT_EQ(read.b, i); |
| ASSERT_EQ(read.c, uint8_t(i)) << i; |
| } |
| } |
| |
| TEST(ThreadLocal, ReadWrite) { |
| std::array<grpc_core::Thread, 100> threads; |
| for (grpc_core::Thread& th : threads) { |
| th = grpc_core::Thread("grpc_tls_test", thd_body, nullptr); |
| th.Start(); |
| } |
| for (grpc_core::Thread& th : threads) { |
| th.Join(); |
| } |
| } |
| |
| } // namespace |
| |
| int main(int argc, char* argv[]) { |
| grpc::testing::TestEnvironment env(&argc, argv); |
| ::testing::InitGoogleTest(&argc, argv); |
| return RUN_ALL_TESTS(); |
| } |