tests/framework/util/dispatchable_handle.h

/*
 * Copyright (c) 2025 The Khronos Group Inc.
 * Copyright (c) 2025 Valve Corporation
 * Copyright (c) 2025 LunarG, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and/or associated documentation files (the "Materials"), to
 * deal in the Materials without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Materials, and to permit persons to whom the Materials are
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice(s) and this permission notice shall be included in
 * all copies or substantial portions of the Materials.
 *
 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 *
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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 */

#pragma once

#include <vulkan/vk_icd.h>

#include "test_defines.h"

template <typename T>
struct FRAMEWORK_EXPORT DispatchableHandle {
    DispatchableHandle() {
        auto ptr_handle = new VK_LOADER_DATA;
        set_loader_magic_value(ptr_handle);
        handle = reinterpret_cast<T>(ptr_handle);
    }
    ~DispatchableHandle() {
        if (handle) {
            delete reinterpret_cast<VK_LOADER_DATA*>(handle);
        }
        handle = nullptr;
    }
    DispatchableHandle(DispatchableHandle const&) = delete;
    DispatchableHandle& operator=(DispatchableHandle const&) = delete;
    DispatchableHandle(DispatchableHandle&& other) noexcept : handle(other.handle) { other.handle = nullptr; }
    DispatchableHandle& operator=(DispatchableHandle&& other) noexcept {
        if (handle) {
            delete reinterpret_cast<VK_LOADER_DATA*>(handle);
        }
        handle = other.handle;
        other.handle = nullptr;
        return *this;
    }
    bool operator==(T base_handle) { return base_handle == handle; }
    bool operator!=(T base_handle) { return base_handle != handle; }

    T handle = nullptr;
};