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/*
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* Copyright ( C ) 2002 - 2004 Sistina Software , Inc . All rights reserved .
* Copyright ( C ) 2004 Red Hat , Inc . All rights reserved .
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*
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* 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 General Public License v .2 .
*
* You should have received a copy of the GNU 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
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*/
# ifndef _LVM_DEV_MANAGER_H
# define _LVM_DEV_MANAGER_H
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struct logical_volume ;
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struct volume_group ;
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struct cmd_context ;
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struct dev_manager ;
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struct dm_info ;
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struct device ;
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/*
* Constructor and destructor .
*/
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struct dev_manager * dev_manager_create ( struct cmd_context * cmd ,
const char * vg_name ) ;
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void dev_manager_destroy ( struct dev_manager * dm ) ;
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void dev_manager_release ( void ) ;
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void dev_manager_exit ( void ) ;
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/*
* The device handler is responsible for creating all the layered
* dm devices , and ensuring that all constraints are maintained
* ( eg , an origin is created before its snapshot , but is not
* unsuspended until the snapshot is also created . )
*/
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int dev_manager_info ( struct dm_pool * mem , const char * name ,
const struct logical_volume * lv ,
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int mknodes , int with_open_count , struct dm_info * info ) ;
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int dev_manager_snapshot_percent ( struct dev_manager * dm ,
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const struct logical_volume * lv ,
float * percent ) ;
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int dev_manager_mirror_percent ( struct dev_manager * dm ,
struct logical_volume * lv , int wait ,
float * percent , uint32_t * event_nr ) ;
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int dev_manager_suspend ( struct dev_manager * dm , struct logical_volume * lv ,
int lockfs ) ;
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int dev_manager_activate ( struct dev_manager * dm , struct logical_volume * lv ) ;
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int dev_manager_preload ( struct dev_manager * dm , struct logical_volume * lv ) ;
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int dev_manager_deactivate ( struct dev_manager * dm , struct logical_volume * lv ) ;
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int dev_manager_lv_mknodes ( const struct logical_volume * lv ) ;
int dev_manager_lv_rmnodes ( const struct logical_volume * lv ) ;
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/*
* Put the desired changes into effect .
*/
int dev_manager_execute ( struct dev_manager * dm ) ;
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int dev_manager_device_uses_vg ( struct device * dev ,
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struct volume_group * vg ) ;
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# endif