| /* |
| * Copyright 2017 The LibYuv Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <gtest/gtest.h> |
| |
| #include "libyuv/cpu_id.h" |
| |
| #if defined(__clang__) && !defined(__wasm__) |
| #if __has_include(<pthread.h>) |
| #define LIBYUV_HAVE_PTHREAD 1 |
| #endif |
| #elif defined(__linux__) |
| #define LIBYUV_HAVE_PTHREAD 1 |
| #endif |
| |
| #ifdef LIBYUV_HAVE_PTHREAD |
| #include <pthread.h> |
| #endif |
| |
| namespace libyuv { |
| |
| #ifdef LIBYUV_HAVE_PTHREAD |
| static void* ThreadMain(void* arg) { |
| int* flags = static_cast<int*>(arg); |
| |
| *flags = TestCpuFlag(kCpuInitialized); |
| return nullptr; |
| } |
| #endif // LIBYUV_HAVE_PTHREAD |
| |
| // Call TestCpuFlag() from two threads. ThreadSanitizer should not report any |
| // data race. |
| TEST(LibYUVCpuThreadTest, TestCpuFlagMultipleThreads) { |
| #ifdef LIBYUV_HAVE_PTHREAD |
| int cpu_flags1; |
| int cpu_flags2; |
| int ret; |
| pthread_t thread1; |
| pthread_t thread2; |
| |
| MaskCpuFlags(0); // Reset to 0 to allow auto detect. |
| ret = pthread_create(&thread1, nullptr, ThreadMain, &cpu_flags1); |
| ASSERT_EQ(ret, 0); |
| ret = pthread_create(&thread2, nullptr, ThreadMain, &cpu_flags2); |
| ASSERT_EQ(ret, 0); |
| ret = pthread_join(thread1, nullptr); |
| EXPECT_EQ(ret, 0); |
| ret = pthread_join(thread2, nullptr); |
| EXPECT_EQ(ret, 0); |
| EXPECT_EQ(cpu_flags1, cpu_flags2); |
| #else |
| printf("pthread unavailable; Test skipped."); |
| #endif // LIBYUV_HAVE_PTHREAD |
| } |
| |
| } // namespace libyuv |