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37 lines
1.2 KiB
C++
37 lines
1.2 KiB
C++
#include "compat/bionic_rwlock_runtime.h"
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#include <gtest/gtest.h>
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#include <atomic>
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#include <thread>
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namespace {
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TEST(BionicRwlockRuntimeTest, SerializesGuestReadersAndWriter) {
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pthread_rwlock_t guest_storage{};
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ASSERT_EQ(mocktail_bionic_pthread_rwlock_init(&guest_storage, nullptr), 0);
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ASSERT_EQ(mocktail_bionic_pthread_rwlock_rdlock(&guest_storage), 0);
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std::atomic<bool> writer_entered{false};
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std::thread writer([&] {
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EXPECT_EQ(mocktail_bionic_pthread_rwlock_wrlock(&guest_storage), 0);
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writer_entered.store(true, std::memory_order_release);
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EXPECT_EQ(mocktail_bionic_pthread_rwlock_unlock(&guest_storage), 0);
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});
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EXPECT_FALSE(writer_entered.load(std::memory_order_acquire));
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EXPECT_EQ(mocktail_bionic_pthread_rwlock_unlock(&guest_storage), 0);
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writer.join();
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EXPECT_TRUE(writer_entered.load(std::memory_order_acquire));
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EXPECT_EQ(mocktail_bionic_pthread_rwlock_destroy(&guest_storage), 0);
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}
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TEST(BionicRwlockRuntimeTest, SupportsZeroInitializedGuestLock) {
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pthread_rwlock_t guest_storage{};
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EXPECT_EQ(mocktail_bionic_pthread_rwlock_wrlock(&guest_storage), 0);
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EXPECT_EQ(mocktail_bionic_pthread_rwlock_unlock(&guest_storage), 0);
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EXPECT_EQ(mocktail_bionic_pthread_rwlock_destroy(&guest_storage), 0);
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}
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} // namespace
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