/*      $NetBSD: lvm_base.c,v 1.1.1.1 2009/12/02 00:26:15 haad Exp $    */

/*
* Copyright (C) 2008,2009 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
*/

#include "lib.h"
#include "lvm2app.h"
#include "toolcontext.h"
#include "locking.h"
#include "lvm-version.h"

const char *lvm_library_get_version(void)
{
       return LVM_VERSION;
}

lvm_t lvm_init(const char *system_dir)
{
       struct cmd_context *cmd;

       /* FIXME: logging bound to handle
        */

       /* create context */
       /* FIXME: split create_toolcontext */
       cmd = create_toolcontext(1, system_dir);
       if (!cmd)
               return NULL;

       if (stored_errno())
               return (lvm_t) cmd;

       /*
        * FIXME: if an non memory error occured, return the cmd (maybe some
        * cleanup needed).
        */

       /* initialization from lvm_run_command */
       init_error_message_produced(0);

       /* FIXME: locking_type config option needed? */
       /* initialize locking */
       if (!init_locking(-1, cmd)) {
               /* FIXME: use EAGAIN as error code here */
               log_error("Locking initialisation failed.");
               lvm_quit((lvm_t) cmd);
               return NULL;
       }
       /*
        * FIXME: Use cmd->cmd_line as audit trail for liblvm calls.  Used in
        * archive() call.  Possible example:
        * cmd_line = "lvm_vg_create: vg1\nlvm_vg_extend vg1 /dev/sda1\n"
        */
       cmd->cmd_line = (char *)"liblvm";

       return (lvm_t) cmd;
}

void lvm_quit(lvm_t libh)
{
       destroy_toolcontext((struct cmd_context *)libh);
}

int lvm_config_reload(lvm_t libh)
{
       /* FIXME: re-init locking needed here? */
       if (!refresh_toolcontext((struct cmd_context *)libh))
               return -1;
       return 0;
}

/*
* FIXME: submit a patch to document the --config option
*/
int lvm_config_override(lvm_t libh, const char *config_settings)
{
       struct cmd_context *cmd = (struct cmd_context *)libh;
       if (override_config_tree_from_string(cmd, config_settings))
               return -1;
       return 0;
}

int lvm_errno(lvm_t libh)
{
       return stored_errno();
}

const char *lvm_errmsg(lvm_t libh)
{
       return stored_errmsg();
}