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64 lines
1.6 KiB
64 lines
1.6 KiB
4 months ago
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/*
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* Copyright 2017 The LibYuv Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <gtest/gtest.h>
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#include "libyuv/cpu_id.h"
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#if defined(__clang__)
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#if __has_include(<pthread.h>)
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#define LIBYUV_HAVE_PTHREAD 1
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#endif
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#elif defined(__linux__)
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#define LIBYUV_HAVE_PTHREAD 1
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#endif
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#ifdef LIBYUV_HAVE_PTHREAD
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#include <pthread.h>
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#endif
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namespace libyuv {
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#ifdef LIBYUV_HAVE_PTHREAD
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void* ThreadMain(void* arg) {
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int* flags = static_cast<int*>(arg);
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*flags = TestCpuFlag(kCpuHasSSSE3);
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return nullptr;
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}
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#endif // LIBYUV_HAVE_PTHREAD
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// Call TestCpuFlag() from two threads. ThreadSanitizer should not report any
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// data race.
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TEST(LibYUVCpuThreadTest, TestCpuFlagMultipleThreads) {
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#ifdef LIBYUV_HAVE_PTHREAD
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int cpu_flags1;
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int cpu_flags2;
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int ret;
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pthread_t thread1;
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pthread_t thread2;
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MaskCpuFlags(0); // Reset to 0 to allow auto detect.
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ret = pthread_create(&thread1, nullptr, ThreadMain, &cpu_flags1);
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ASSERT_EQ(ret, 0);
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ret = pthread_create(&thread2, nullptr, ThreadMain, &cpu_flags2);
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ASSERT_EQ(ret, 0);
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ret = pthread_join(thread1, nullptr);
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EXPECT_EQ(ret, 0);
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ret = pthread_join(thread2, nullptr);
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EXPECT_EQ(ret, 0);
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EXPECT_EQ(cpu_flags1, cpu_flags2);
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#else
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printf("pthread unavailable; Test skipped.");
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#endif // LIBYUV_HAVE_PTHREAD
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}
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} // namespace libyuv
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