mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
968cdc0066
(protocol) version of the running dmeventd on the client side. Right now this is only used in dmeventd -R.
113 lines
4.1 KiB
C
113 lines
4.1 KiB
C
/*
|
|
* Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This file is part of the device-mapper userspace tools.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* Note that this file is released only as part of a technology preview
|
|
* and its contents may change in future updates in ways that do not
|
|
* preserve compatibility.
|
|
*/
|
|
|
|
#ifndef LIB_DMEVENT_H
|
|
#define LIB_DMEVENT_H
|
|
|
|
#include <stdint.h>
|
|
|
|
/*
|
|
* Event library interface.
|
|
*/
|
|
|
|
enum dm_event_mask {
|
|
DM_EVENT_SETTINGS_MASK = 0x0000FF,
|
|
DM_EVENT_SINGLE = 0x000001, /* Report multiple errors just once. */
|
|
DM_EVENT_MULTI = 0x000002, /* Report all of them. */
|
|
|
|
DM_EVENT_ERROR_MASK = 0x00FF00,
|
|
DM_EVENT_SECTOR_ERROR = 0x000100, /* Failure on a particular sector. */
|
|
DM_EVENT_DEVICE_ERROR = 0x000200, /* Device failure. */
|
|
DM_EVENT_PATH_ERROR = 0x000400, /* Failure on an io path. */
|
|
DM_EVENT_ADAPTOR_ERROR = 0x000800, /* Failure of a host adaptor. */
|
|
|
|
DM_EVENT_STATUS_MASK = 0xFF0000,
|
|
DM_EVENT_SYNC_STATUS = 0x010000, /* Mirror synchronization completed/failed. */
|
|
DM_EVENT_TIMEOUT = 0x020000, /* Timeout has occured */
|
|
|
|
DM_EVENT_REGISTRATION_PENDING = 0x1000000, /* Monitor thread is setting-up/shutting-down */
|
|
};
|
|
|
|
#define DM_EVENT_ALL_ERRORS DM_EVENT_ERROR_MASK
|
|
#define DM_EVENT_PROTOCOL_VERSION 1
|
|
|
|
struct dm_event_handler;
|
|
|
|
struct dm_event_handler *dm_event_handler_create(void);
|
|
void dm_event_handler_destroy(struct dm_event_handler *dmevh);
|
|
|
|
/*
|
|
* Path of shared library to handle events.
|
|
*
|
|
* All of dmeventd, dso, device_name and uuid strings are duplicated so
|
|
* you do not need to keep the pointers valid after the call succeeds.
|
|
* They may return -ENOMEM though.
|
|
*/
|
|
int dm_event_handler_set_dso(struct dm_event_handler *dmevh, const char *path);
|
|
|
|
/*
|
|
* Path of dmeventd binary.
|
|
*/
|
|
int dm_event_handler_set_dmeventd_path(struct dm_event_handler *dmevh, const char *dmeventd_path);
|
|
|
|
/*
|
|
* Identify the device to monitor by exactly one of device_name, uuid or
|
|
* device number. String arguments are duplicated, see above.
|
|
*/
|
|
int dm_event_handler_set_dev_name(struct dm_event_handler *dmevh, const char *device_name);
|
|
|
|
int dm_event_handler_set_uuid(struct dm_event_handler *dmevh, const char *uuid);
|
|
|
|
void dm_event_handler_set_major(struct dm_event_handler *dmevh, int major);
|
|
void dm_event_handler_set_minor(struct dm_event_handler *dmevh, int minor);
|
|
void dm_event_handler_set_timeout(struct dm_event_handler *dmevh, int timeout);
|
|
|
|
/*
|
|
* Specify mask for events to monitor.
|
|
*/
|
|
void dm_event_handler_set_event_mask(struct dm_event_handler *dmevh,
|
|
enum dm_event_mask evmask);
|
|
|
|
const char *dm_event_handler_get_dso(const struct dm_event_handler *dmevh);
|
|
const char *dm_event_handler_get_dev_name(const struct dm_event_handler *dmevh);
|
|
const char *dm_event_handler_get_uuid(const struct dm_event_handler *dmevh);
|
|
int dm_event_handler_get_major(const struct dm_event_handler *dmevh);
|
|
int dm_event_handler_get_minor(const struct dm_event_handler *dmevh);
|
|
int dm_event_handler_get_timeout(const struct dm_event_handler *dmevh);
|
|
enum dm_event_mask dm_event_handler_get_event_mask(const struct dm_event_handler *dmevh);
|
|
|
|
/* FIXME Review interface (what about this next thing?) */
|
|
int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next);
|
|
|
|
/*
|
|
* Initiate monitoring using dmeventd.
|
|
*/
|
|
int dm_event_register_handler(const struct dm_event_handler *dmevh);
|
|
int dm_event_unregister_handler(const struct dm_event_handler *dmevh);
|
|
|
|
/* Prototypes for DSO interface, see dmeventd.c, struct dso_data for
|
|
detailed descriptions. */
|
|
void process_event(struct dm_task *dmt, enum dm_event_mask evmask, void **user);
|
|
int register_device(const char *device_name, const char *uuid, int major, int minor, void **user);
|
|
int unregister_device(const char *device_name, const char *uuid, int major,
|
|
int minor, void **user);
|
|
|
|
#endif
|