external/gpl2/lvm2/dist/tools/lvm2cmd.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
   5  * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
   6  *
   7  * This file is part of LVM2.
   8  *
   9  * This copyrighted material is made available to anyone wishing to use,
  10  * modify, copy, or redistribute it subject to the terms and conditions
  11  * of the GNU Lesser General Public License v.2.1.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #ifndef _LVM_CMDLIB_H
  19 #define _LVM_CMDLIB_H
  20
  21 #ifndef _LVM_LOG_H
  22 typedef void (*lvm2_log_fn_t) (int level, const char *file, int line,
  23                                int dm_errno, const char *message);
  24
  25 #endif
  26
  27 #define LVM2_LOG_SUPPRESS       0
  28
  29 /* Logging levels */
  30 #define LVM2_LOG_FATAL          2
  31 #define LVM2_LOG_ERROR          3
  32 #define LVM2_LOG_PRINT          4
  33 #define LVM2_LOG_VERBOSE        5
  34 #define LVM2_LOG_VERY_VERBOSE   6
  35 #define LVM2_LOG_DEBUG          7
  36
  37 /*
  38  * Define external function to replace the built-in logging function.
  39  * It receives output line-by-line.
  40  *
  41  * level is the logging level (see above)
  42  * file & line refer to the source code where the message originates.
  43  */
  44 void lvm2_log_fn(lvm2_log_fn_t log_fn);
  45
  46 /*
  47  * Initialise library.
  48  * Returns a handle so repeated use of lvm2_run is more efficient.
  49  */
  50 void *lvm2_init(void);
  51
  52 /*
  53  * Set log level (as above) if using built-in logging function.
  54  * Default is LVM2_LOG_PRINT.  Use LVM2_LOG_SUPPRESS to suppress output.
  55  */
  56 void lvm2_log_level(void *handle, int level);
  57
  58 /*
  59  * Run an LVM2 command.
  60  * Use NULL handle if the call is a one-off and you don't want to bother
  61  * calling lvm2_init/lvm2_exit.
  62  */
  63 int lvm2_run(void *handle, const char *cmdline);
  64
  65 /* Release handle */
  66 void lvm2_exit(void *handle);
  67
  68 #endif