Archipelago » qemu

/*

 * Virtio 9p backend

 *

 * Copyright IBM, Corp. 2011

 *

 * Authors:

 *  Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

 *

 * This work is licensed under the terms of the GNU GPL, version 2.  See

 * the COPYING file in the top-level directory.

 *

 */

#include "fsdev/qemu-fsdev.h"

#include "qemu-thread.h"

#include "qemu-coroutine.h"

#include "virtio-9p-coth.h"

int v9fs_co_readdir(V9fsState *s, V9fsFidState *fidp, struct dirent **dent)

{

    int err;

    v9fs_co_run_in_worker(

        {

            errno = 0;

            /*FIXME!! need to switch to readdir_r */

            *dent = s->ops->readdir(&s->ctx, fidp->fs.dir);

            if (!*dent && errno) {

                err = -errno;

            } else {

                err = 0;

            }

        });

    return err;

}

off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp)

{

    off_t err;

    v9fs_co_run_in_worker(

        {

            err = s->ops->telldir(&s->ctx, fidp->fs.dir);

            if (err < 0) {

                err = -errno;

            }

        });

    return err;

}

void v9fs_co_seekdir(V9fsState *s, V9fsFidState *fidp, off_t offset)

{

    v9fs_co_run_in_worker(

        {

            s->ops->seekdir(&s->ctx, fidp->fs.dir, offset);

        });

}

void v9fs_co_rewinddir(V9fsState *s, V9fsFidState *fidp)

{

    v9fs_co_run_in_worker(

        {

            s->ops->rewinddir(&s->ctx, fidp->fs.dir);

        });

}