/*
 * Copyright 2001-2009, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */

#include "FileSystem.h"

#include "AutoLocker.h"
#include "Volume.h"


FileSystem* FileSystem::sInstance = NULL;


// constructor
FileSystem::FileSystem(const char* fsName)
{
        strlcpy(fName, fsName, sizeof(fName));

        sInstance = this;
}


// destructor
FileSystem::~FileSystem()
{
        sInstance = NULL;
}


/*static*/ FileSystem*
FileSystem::GetInstance()
{
        return sInstance;
}


void
FileSystem::InitRequestThreadContext(RequestThreadContext* context)
{
}


void
FileSystem::RegisterVolume(Volume* volume)
{
        AutoLocker<Locker> _(fLock);
        fVolumes.Add(volume);
}


void
FileSystem::UnregisterVolume(Volume* volume)
{
        AutoLocker<Locker> _(fLock);
        fVolumes.Remove(volume);
}


Volume*
FileSystem::VolumeWithID(dev_t id)
{
        AutoLocker<Locker> _(fLock);

        VolumeList::Iterator it = fVolumes.GetIterator();
        while (Volume* volume = it.Next()) {
                if (volume->GetID() == id)
                        return volume;
        }

        return NULL;
}