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/*
* storage_backend.h: internal storage driver backend contract
*
* Copyright (C) 2007-2008 Red Hat, Inc.
* Copyright (C) 2007-2008 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __VIR_STORAGE_BACKEND_H__
#define __VIR_STORAGE_BACKEND_H__
#include <libvirt/libvirt.h>
#include "storage_conf.h"
typedef const char *(*virStorageVolFormatToString)(virConnectPtr conn,
int format);
typedef int (*virStorageVolFormatFromString)(virConnectPtr conn,
const char *format);
typedef const char *(*virStoragePoolFormatToString)(virConnectPtr conn,
int format);
typedef int (*virStoragePoolFormatFromString)(virConnectPtr conn,
const char *format);
typedef struct _virStorageBackendVolOptions virStorageBackendVolOptions;
typedef virStorageBackendVolOptions *virStorageBackendVolOptionsPtr;
struct _virStorageBackendVolOptions {
virStorageVolFormatToString formatToString;
virStorageVolFormatFromString formatFromString;
};
/* Flags to indicate mandatory components in the pool source */
enum {
VIR_STORAGE_BACKEND_POOL_SOURCE_HOST = (1<<0),
VIR_STORAGE_BACKEND_POOL_SOURCE_DEVICE = (1<<1),
VIR_STORAGE_BACKEND_POOL_SOURCE_DIR = (1<<2),
VIR_STORAGE_BACKEND_POOL_SOURCE_ADAPTER = (1<<3),
VIR_STORAGE_BACKEND_POOL_SOURCE_NAME = (1<<4),
};
typedef struct _virStorageBackendPoolOptions virStorageBackendPoolOptions;
typedef virStorageBackendPoolOptions *virStorageBackendPoolOptionsPtr;
struct _virStorageBackendPoolOptions {
int flags;
virStoragePoolFormatToString formatToString;
virStoragePoolFormatFromString formatFromString;
};
#define SOURCES_START_TAG "<sources>"
#define SOURCES_END_TAG "</sources>"
typedef char * (*virStorageBackendFindPoolSources)(virConnectPtr conn, const char *srcSpec, unsigned int flags);
typedef int (*virStorageBackendStartPool)(virConnectPtr conn, virStoragePoolObjPtr pool);
typedef int (*virStorageBackendBuildPool)(virConnectPtr conn, virStoragePoolObjPtr pool, unsigned int flags);
typedef int (*virStorageBackendRefreshPool)(virConnectPtr conn, virStoragePoolObjPtr pool);
typedef int (*virStorageBackendStopPool)(virConnectPtr conn, virStoragePoolObjPtr pool);
typedef int (*virStorageBackendDeletePool)(virConnectPtr conn, virStoragePoolObjPtr pool, unsigned int flags);
typedef int (*virStorageBackendCreateVol)(virConnectPtr conn, virStoragePoolObjPtr pool, virStorageVolDefPtr vol);
typedef int (*virStorageBackendRefreshVol)(virConnectPtr conn, virStoragePoolObjPtr pool, virStorageVolDefPtr vol);
typedef int (*virStorageBackendDeleteVol)(virConnectPtr conn, virStoragePoolObjPtr pool, virStorageVolDefPtr vol, unsigned int flags);
typedef struct _virStorageBackend virStorageBackend;
typedef virStorageBackend *virStorageBackendPtr;
struct _virStorageBackend {
int type;
virStorageBackendFindPoolSources findPoolSources;
virStorageBackendStartPool startPool;
virStorageBackendBuildPool buildPool;
virStorageBackendRefreshPool refreshPool;
virStorageBackendStopPool stopPool;
virStorageBackendDeletePool deletePool;
virStorageBackendCreateVol createVol;
virStorageBackendRefreshVol refreshVol;
virStorageBackendDeleteVol deleteVol;
virStorageBackendPoolOptions poolOptions;
virStorageBackendVolOptions volOptions;
int volType;
};
virStorageBackendPtr virStorageBackendForType(int type);
virStorageBackendPoolOptionsPtr virStorageBackendPoolOptionsForType(int type);
virStorageBackendVolOptionsPtr virStorageBackendVolOptionsForType(int type);
int virStorageBackendFromString(const char *type);
const char *virStorageBackendToString(int type);
int virStorageBackendUpdateVolInfo(virConnectPtr conn,
virStorageVolDefPtr vol,
int withCapacity);
int virStorageBackendUpdateVolInfoFD(virConnectPtr conn,
virStorageVolDefPtr vol,
int fd,
int withCapacity);
char *virStorageBackendStablePath(virConnectPtr conn,
virStoragePoolObjPtr pool,
char *devpath);
typedef int (*virStorageBackendListVolRegexFunc)(virConnectPtr conn,
virStoragePoolObjPtr pool,
char **const groups,
void *data);
typedef int (*virStorageBackendListVolNulFunc)(virConnectPtr conn,
virStoragePoolObjPtr pool,
size_t n_tokens,
char **const groups,
void *data);
int virStorageBackendRunProgRegex(virConnectPtr conn,
virStoragePoolObjPtr pool,
const char *const*prog,
int nregex,
const char **regex,
int *nvars,
virStorageBackendListVolRegexFunc func,
void *data,
int *exitstatus);
int virStorageBackendRunProgNul(virConnectPtr conn,
virStoragePoolObjPtr pool,
const char **prog,
size_t n_columns,
virStorageBackendListVolNulFunc func,
void *data);
#endif /* __VIR_STORAGE_BACKEND_H__ */
