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// Copyright 2014 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <atomic>
#include <thread>
#include <gtest/gtest.h>
#include "Common/BlockingLoop.h"
TEST(BlockingLoop, MultiThreaded)
{
Common::BlockingLoop loop;
std::atomic signaled_a(0);
std::atomic received_a(0);
std::atomic signaled_b(0);
std::atomic received_b(0);
for (int i = 0; i < 100; i++)
{
// Invalidate the current state.
received_a.store(signaled_a.load() + 1);
received_b.store(signaled_b.load() + 123);
// Must not block as the loop is stopped.
loop.Wait();
std::thread loop_thread([&]() {
loop.Run([&]() {
received_a.store(signaled_a.load());
received_b.store(signaled_b.load());
});
});
// Now Wait must block.
loop.Prepare();
// The payload must run at least once on startup.
loop.Wait();
EXPECT_EQ(signaled_a.load(), received_a.load());
EXPECT_EQ(signaled_b.load(), received_b.load());
std::thread run_a_thread([&]() {
for (int j = 0; j < 100; j++)
{
for (int k = 0; k < 100; k++)
{
signaled_a++;
loop.Wakeup();
}
loop.Wait();
EXPECT_EQ(signaled_a.load(), received_a.load());
}
});
std::thread run_b_thread([&]() {
for (int j = 0; j < 100; j++)
{
for (int k = 0; k < 100; k++)
{
signaled_b++;
loop.Wakeup();
}
loop.Wait();
EXPECT_EQ(signaled_b.load(), received_b.load());
}
});
run_a_thread.join();
run_b_thread.join();
loop.Stop();
// Must not block
loop.Wait();
loop_thread.join();
}
}
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