process.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/

#include "process.h"
#include <QProcess>

namespace LC::Util::detail
{
    bool ProcessAwaiter::await_ready () const noexcept
    {
        return Process_.state () == QProcess::NotRunning;
    }

    void ProcessAwaiter::await_suspend (std::coroutine_handle<> handle) noexcept
    {
        FinishedConn_ = QObject::connect (&Process_,
                &QProcess::finished,
                handle);
        ErrorConn_ = QObject::connect (&Process_,
                &QProcess::errorOccurred,
                [this, handle]
                {
                    if (await_ready ())
                    {
                        QObject::disconnect (std::move (FinishedConn_).Release ());
                        handle ();
                    }
                });
    }

    void ProcessAwaiter::await_resume () const noexcept
    {
    }
}

namespace LC
{
    UTIL_THREADS_API Util::detail::ProcessAwaiter operator co_await (QProcess& reply)
    {
        return { reply };
    }
}