doc/example_cmdlib.c

   1 /*
   2  * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
   3  *
   4  * This file is part of LVM2.
   5  *
   6  * This copyrighted material is made available to anyone wishing to use,
   7  * modify, copy, or redistribute it subject to the terms and conditions
   8  * of the GNU General Public License v.2.
   9  *
  10  * You should have received a copy of the GNU General Public License
  11  * along with this program; if not, write to the Free Software Foundation,
  12  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  13  */
  14
  15 #include "lvm2cmd.h"
  16 #include <stdio.h>
  17
  18 /* All output gets passed to this function line-by-line */
  19 void test_log_fn(int level, const char *file, int line,
  20                  int dm_errno, const char *format)
  21 {
  22         /* Extract and process output here rather than printing it */
  23
  24         if (level != 4)
  25                 return;
  26
  27         printf("%s\n", format);
  28         return;
  29 }
  30
  31 int main(int argc, char **argv)
  32 {
  33         void *handle;
  34         int r;
  35
  36         lvm2_log_fn(test_log_fn);
  37
  38         handle = lvm2_init();
  39
  40         lvm2_log_level(handle, 1);
  41         r = lvm2_run(handle, "vgs --noheadings vg1");
  42
  43         /* More commands here */
  44
  45         lvm2_exit(handle);
  46
  47         return r;
  48 }
  49