Pipe.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2024 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#pragma once
 
#include <AUI/Traits/values.h>
 
#if AUI_PLATFORM_WIN
#include <Windows.h>
#else
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <cassert>
#include <spawn.h>
#endif
 
 
class Pipe: public aui::noncopyable {
public:
#if AUI_PLATFORM_WIN
    using pipe_t = HANDLE;
#else
    using pipe_t = int;
#endif
 
    Pipe();
    Pipe(Pipe&& rhs) noexcept {
        operator=(std::move(rhs));
    }
    ~Pipe();
 
    Pipe& operator=(Pipe&& rhs) noexcept {
        mIn = rhs.mIn;
        mOut = rhs.mOut;
        rhs.mIn = rhs.mOut = static_cast<pipe_t>(0);
        return *this;
    }
 
 
    [[nodiscard]]
    pipe_t out() const noexcept {
        return mOut;
    }
 
    [[nodiscard]]
    pipe_t in() const noexcept {
        return mIn;
    }
 
    void closeOut() noexcept;
    void closeIn() noexcept;
 
    [[nodiscard]]
    pipe_t stealOut() noexcept {
        auto copy = mOut;
        mOut = 0;
        return copy;
    }
 
    [[nodiscard]]
    pipe_t stealIn() noexcept {
        auto copy = mIn;
        mIn = 0;
        return copy;
    }
 
 
private:
    pipe_t mOut;
 
    pipe_t mIn;
};