AuroraRuntime/Source/IO/FS/Watcher.Linux.hpp

/***
    Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: Watcher.Linux.hpp
    Date: 2022-4-10
    Author: Reece
***/
#pragma once

namespace Aurora::IO::FS
{
    struct LinuxWatcherHandle;

    struct UnixCachedPath
    {
        AuString strNormalizedPath;
        AuString strTheCakeIsALie;
        AuSPtr<UserWatchData> userData;
        int watcherWd {-1};
        bool bIsDir {};
    };

    struct LinuxWatcher : IWatcher
    {
        ~LinuxWatcher();

        virtual bool                      AddWatch(const WatchRequest &file) override;

        virtual bool                      RemoveByName(const AuString &path) override;
        virtual bool                      RemoveByPrivateContext(const AuSPtr<UserWatchData> &file) override;

        virtual AuSPtr<Loop::ILoopSource> AsLoopSource() override;

        virtual AuList<WatchEvent>        QueryUpdates() override;

        bool Init();
        void Deinit();

    private:
        AuSPtr<LinuxWatcherHandle>  loopSource_;
        AuThreadPrimitives::SpinLock spinlock_;
        AuList<UnixCachedPath> paths_;
        int inotifyHandle_ {-1};
    };

}