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/* -*- linux-c -*- --------------------------------------------------------- *
*
* linux/include/linux/devpts_fs.h
*
* Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ------------------------------------------------------------------------- */
#ifndef _LINUX_DEVPTS_FS_H
#define _LINUX_DEVPTS_FS_H
#include <linux/errno.h>
#ifdef CONFIG_UNIX98_PTYS
int devpts_new_index(struct inode *ptmx_inode);
void devpts_kill_index(struct inode *ptmx_inode, int idx);
void devpts_add_ref(struct inode *ptmx_inode);
void devpts_del_ref(struct inode *ptmx_inode);
/* mknod in devpts */
struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
void *priv);
/* get private structure */
void *devpts_get_priv(struct inode *pts_inode);
/* unlink */
void devpts_pty_kill(struct inode *inode);
#else
/* Dummy stubs in the no-pty case */
static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; }
static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { }
static inline void devpts_add_ref(struct inode *ptmx_inode) { }
static inline void devpts_del_ref(struct inode *ptmx_inode) { }
static inline struct inode *devpts_pty_new(struct inode *ptmx_inode,
dev_t device, int index, void *priv)
{
return ERR_PTR(-EINVAL);
}
static inline void *devpts_get_priv(struct inode *pts_inode)
{
return NULL;
}
static inline void devpts_pty_kill(struct inode *inode) { }
#endif
#endif /* _LINUX_DEVPTS_FS_H */