/***
    Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: IProcess.hpp
    Date: 2021-6-9
    Author: Reece
***/
#pragma once

namespace Aurora::Threading
{
    class IWaitable;
}

namespace Aurora::Processes
{
    class IProcess
    {
    public:
        /// 
        /// @return the waitable of a waitable child process or thread leader
        virtual Threading::IWaitable *AsWaitable() = 0;

        /// Assuming AsWaitable()->TryLock() && Spawn != SpawnType::kSpawnAtomicOvermap, 
        ///     returns the true return value of the process
        /// otherwise returns zero
        virtual AuSInt GetExitCode() = 0;

        /// 
        /// @param exitOnSpawn atomically destroys the current process <br>
        ///        some platforms only support this
        /// 
        virtual bool Start(enum ESpawnType, bool fwdOut, bool fwdErr, bool fwdIn) = 0;
        
        virtual bool Terminate() = 0;
        virtual bool TryKill()   = 0;
        
        virtual bool Read(bool error, void *buffer, AuUInt32 &len) = 0;
        virtual bool Write(const void *buffer, AuUInt32 len) = 0;
    };
}