/*      $NetBSD: lvm2cmd.h,v 1.1.1.2 2009/12/02 00:25:51 haad Exp $     */

/*
* Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef _LVM_CMDLIB_H
#define _LVM_CMDLIB_H

#ifndef _LVM_LOG_H
typedef void (*lvm2_log_fn_t) (int level, const char *file, int line,
                              int dm_errno, const char *message);

#endif

#define LVM2_LOG_SUPPRESS       0

/* Logging levels */
#define LVM2_LOG_FATAL          2
#define LVM2_LOG_ERROR          3
#define LVM2_LOG_PRINT          4
#define LVM2_LOG_VERBOSE        5
#define LVM2_LOG_VERY_VERBOSE   6
#define LVM2_LOG_DEBUG          7

/*
* Define external function to replace the built-in logging function.
* It receives output line-by-line.
*
* level is the logging level (see above)
* file & line refer to the source code where the message originates.
*/
void lvm2_log_fn(lvm2_log_fn_t log_fn);

/*
* Initialise library.
* Returns a handle so repeated use of lvm2_run is more efficient.
*/
void *lvm2_init(void);

/*
* Set log level (as above) if using built-in logging function.
* Default is LVM2_LOG_PRINT.  Use LVM2_LOG_SUPPRESS to suppress output.
*/
void lvm2_log_level(void *handle, int level);

/*
* Run an LVM2 command.
* Use NULL handle if the call is a one-off and you don't want to bother
* calling lvm2_init/lvm2_exit.
*/
int lvm2_run(void *handle, const char *cmdline);

/* Release handle */
void lvm2_exit(void *handle);

#endif