// Copyright 2023 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include <mutex>

#include "Core/Core.h"

// The Core only supports using a single Host thread.
// If multiple threads want to call host functions then they need to queue
// sequentially for access.
struct HostThreadLock
{
  static std::mutex s_host_identity_mutex;
  std::unique_lock<std::mutex> m_lock;

  explicit HostThreadLock() : m_lock(s_host_identity_mutex) { Core::DeclareAsHostThread(); }
  HostThreadLock(const HostThreadLock& other) = delete;
  HostThreadLock(HostThreadLock&& other) = delete;
  HostThreadLock& operator=(const HostThreadLock& other) = delete;
  HostThreadLock& operator=(HostThreadLock&& other) = delete;
  ~HostThreadLock() { Core::UndeclareAsHostThread(); }
};