[deliverable/linux.git] / include / linux / devpts_fs.h

/* -*- 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(void);
void devpts_kill_index(int idx);
int devpts_pty_new(struct tty_struct *tty);      /* mknod in devpts */
struct tty_struct *devpts_get_tty(int number);	 /* get tty structure */
void devpts_pty_kill(int number);		 /* unlink */

#else

/* Dummy stubs in the no-pty case */
static inline int devpts_new_index(void) { return -EINVAL; }
static inline void devpts_kill_index(int idx) { }
static inline int devpts_pty_new(struct tty_struct *tty) { return -EINVAL; }
static inline struct tty_struct *devpts_get_tty(int number) { return NULL; }
static inline void devpts_pty_kill(int number) { }

#endif


#endif /* _LINUX_DEVPTS_FS_H */
Commit	Line	Data
1da177e4 LT	1	/* -- linux-c -- --------------------------------------------------------- *
	2	*
	3	* linux/include/linux/devpts_fs.h
	4	*
	5	* Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved
	6	*
	7	* This file is part of the Linux kernel and is made available under
	8	* the terms of the GNU General Public License, version 2, or at your
	9	* option, any later version, incorporated herein by reference.
	10	*
	11	* ------------------------------------------------------------------------- */
	12
	13	#ifndef _LINUX_DEVPTS_FS_H
	14	#define _LINUX_DEVPTS_FS_H
	15
	16	#include <linux/errno.h>
	17
	18	#ifdef CONFIG_UNIX98_PTYS
	19
718a9163 SB	20	int devpts_new_index(void);
718a9163 SB	21	void devpts_kill_index(int idx);
1da177e4 LT	22	int devpts_pty_new(struct tty_struct tty); / mknod in devpts */
	23	struct tty_struct devpts_get_tty(int number); / get tty structure */
	24	void devpts_pty_kill(int number); /* unlink */
	25
	26	#else
	27
	28	/* Dummy stubs in the no-pty case */
718a9163 SB	29	static inline int devpts_new_index(void) { return -EINVAL; }
718a9163 SB	30	static inline void devpts_kill_index(int idx) { }
1da177e4 LT	31	static inline int devpts_pty_new(struct tty_struct *tty) { return -EINVAL; }
	32	static inline struct tty_struct *devpts_get_tty(int number) { return NULL; }
	33	static inline void devpts_pty_kill(int number) { }
	34
	35	#endif
	36
	37
	38	#endif /* _LINUX_DEVPTS_FS_H */