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

    File: AuGroupState.hpp
    Date: 2021-11-1
    Author: Reece
***/
#pragma once

#include "ThreadState.hpp"
#include "AuGroupWorkQueue.hpp"

namespace Aurora::Async
{
    struct ThreadPool;

    struct GroupState :
        AuEnableSharedFromThis<GroupState>
    {
        // group id
        ThreadGroup_t group;
        
        // work items
        GroupWorkQueue workQueue;

        // tracked workers
        AuThreadPrimitives::Mutex workersMutex;
        AuFutexMutex deinitMutex;
        AuBST<ThreadId_t, AuSPtr<ThreadState>> workers;
        AuWPtr<ThreadState> wpWorkers[32]; // linear non-locking lookup table
        //

        bool Init();

        void SignalAll(bool bHasWork = true);
        void Decommit(ThreadId_t id);

        bool AddWorker(ThreadId_t id, AuSPtr<ThreadState> pState);
        AuSPtr<ThreadState> CreateWorker(WorkerId_t id, bool bCreate);

        AuSPtr<ThreadState> GetThreadByIndex(ThreadId_t uIndex);
    };
}