/*

 * An object providing access to directory functionality.

 *

 * Copyright (C) 2021 Paul Boddie <paul@boddie.org.uk>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License as

 * published by the Free Software Foundation; either version 2 of

 * the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA  02110-1301, USA

 */

#include "directory_provider.h"

#include "directory_resource.h"

/* Initialise the provider. */

DirectoryProvider::DirectoryProvider(fileid_t fileid, FileRegistry *registry,

                                     DirectoryAccessor *accessor)

: Provider(fileid, registry), _accessor(accessor)

{

}

/* Deallocate the provider's resources. */

DirectoryProvider::~DirectoryProvider()

{

}

/* Return the accessor. */

DirectoryAccessor *DirectoryProvider::accessor()

{

    return _accessor;

}

/* Return a directory resource initialised with this provider. */

long DirectoryProvider::make_resource(offset_t *size,

                                      object_flags_t *object_flags,

                                      Resource **resource)

{

    /* Provide non-file values for certain outputs. */

    *size = 0;

    *object_flags = 0;

    /* Initialise the resource with the provider and a reference to the registry

       for detaching from the provider. */

    this->attach();

    *resource = new DirectoryResource(_fileid, this, _registry);

    return L4_EOK;

}

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