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lvm2/lib/activate/dev_manager.h

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/*
* Copyright (C) 2002 Sistina Software (UK) Limited.
*
* This file is released under the LGPL.
*/
#ifndef _LVM_DEV_MANAGER_H
#define _LVM_DEV_MANAGER_H
#include "metadata.h"
#include "config.h"
struct dev_manager;
struct dm_info;
/*
* Constructor and destructor.
*/
struct dev_manager *dev_manager_create(const char *vg_name,
struct config_tree *cf);
void dev_manager_destroy(struct dev_manager *dm);
void dev_manager_exit(void);
/*
* 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.)
*/
int dev_manager_info(struct dev_manager *dm, const struct logical_volume *lv,
int mknodes, struct dm_info *info);
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int dev_manager_snapshot_percent(struct dev_manager *dm,
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 dev_manager_activate(struct dev_manager *dm, struct logical_volume *lv);
int dev_manager_deactivate(struct dev_manager *dm, struct logical_volume *lv);
int dev_manager_mknodes(const struct logical_volume *lv);
int dev_manager_rmnodes(const struct logical_volume *lv);
/*
* Put the desired changes into effect.
*/
int dev_manager_execute(struct dev_manager *dm);
#endif