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46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
// Copyright 2026 Mocktail Project Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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#include "compat/bionic_semaphore_runtime.h"
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#include <gtest/gtest.h>
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#include <array>
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#include <atomic>
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#include <cerrno>
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#include <thread>
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namespace {
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TEST(BionicSemaphoreRuntimeTest, AdaptsGuestStorageToHostSemaphore) {
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alignas(sem_t) std::array<unsigned char, sizeof(sem_t)> guest_storage{};
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auto* semaphore = reinterpret_cast<sem_t*>(guest_storage.data());
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ASSERT_EQ(mocktail_bionic_sem_init(semaphore, 0, 0), 0);
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std::atomic<bool> released{false};
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std::thread waiter([&] {
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EXPECT_EQ(mocktail_bionic_sem_wait(semaphore), 0);
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released.store(true, std::memory_order_release);
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});
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EXPECT_FALSE(released.load(std::memory_order_acquire));
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EXPECT_EQ(mocktail_bionic_sem_post(semaphore), 0);
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waiter.join();
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EXPECT_TRUE(released.load(std::memory_order_acquire));
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EXPECT_EQ(mocktail_bionic_sem_destroy(semaphore), 0);
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}
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TEST(BionicSemaphoreRuntimeTest, RejectsProcessSharedSemaphore) {
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sem_t guest_storage{};
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errno = 0;
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EXPECT_EQ(mocktail_bionic_sem_init(&guest_storage, 1, 0), -1);
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EXPECT_EQ(errno, EINVAL);
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}
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} // namespace
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