diff options
Diffstat (limited to 'freebsd/sys/fs/devfs/devfs_int.h')
| -rw-r--r-- | freebsd/sys/fs/devfs/devfs_int.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/freebsd/sys/fs/devfs/devfs_int.h b/freebsd/sys/fs/devfs/devfs_int.h new file mode 100644 index 00000000..723cbc22 --- /dev/null +++ b/freebsd/sys/fs/devfs/devfs_int.h @@ -0,0 +1,90 @@ +/*- + * Copyright (c) 2005 Poul-Henning Kamp. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * This file documents a private interface and it SHALL only be used + * by kern/kern_conf.c and fs/devfs/... + */ + +#ifndef _FS_DEVFS_DEVFS_INT_HH_ +#define _FS_DEVFS_DEVFS_INT_HH_ + +#include <freebsd/sys/queue.h> + +#ifdef _KERNEL + +struct devfs_dirent; + +struct cdev_privdata { + struct file *cdpd_fp; + void *cdpd_data; + void (*cdpd_dtr)(void *); + LIST_ENTRY(cdev_privdata) cdpd_list; +}; + +struct cdev_priv { + struct cdev cdp_c; + TAILQ_ENTRY(cdev_priv) cdp_list; + + u_int cdp_inode; + + u_int cdp_flags; +#define CDP_ACTIVE (1 << 0) +#define CDP_SCHED_DTR (1 << 1) + +#ifndef __rtems__ + u_int cdp_inuse; + u_int cdp_maxdirent; + struct devfs_dirent **cdp_dirents; + struct devfs_dirent *cdp_dirent0; + + TAILQ_ENTRY(cdev_priv) cdp_dtr_list; + void (*cdp_dtr_cb)(void *); + void *cdp_dtr_cb_arg; + + LIST_HEAD(, cdev_privdata) cdp_fdpriv; +#endif /* __rtems__ */ +}; + +#define cdev2priv(c) member2struct(cdev_priv, cdp_c, c) + +struct cdev *devfs_alloc(int); +void devfs_free(struct cdev *); +void devfs_create(struct cdev *dev); +void devfs_destroy(struct cdev *dev); +void devfs_destroy_cdevpriv(struct cdev_privdata *p); + +extern struct unrhdr *devfs_inos; +extern struct mtx devmtx; +extern struct mtx devfs_de_interlock; +extern struct sx clone_drain_lock; +extern struct mtx cdevpriv_mtx; +extern TAILQ_HEAD(cdev_priv_list, cdev_priv) cdevp_list; + +#endif /* _KERNEL */ + +#endif /* !_FS_DEVFS_DEVFS_INT_HH_ */ |