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a9567e09ef
really should be synchronizing against udev. This is generally done by a call to udevsettle, which is exactly what this patch implements for the storage backends that are likely to create new /dev nodes. I believe I've read that even after udevsettle, you are not guaranteed that devices are all the way created, so we still need the polling in the rest of the sources, but this should give us a much better chance of things existing as we expect. Signed-off-by: Chris Lalancette <clalance@redhat.com>
106 lines
4.6 KiB
C
106 lines
4.6 KiB
C
/*
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* storage_backend.h: internal storage driver backend contract
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*
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* Copyright (C) 2007-2008 Red Hat, Inc.
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* Copyright (C) 2007-2008 Daniel P. Berrange
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#ifndef __VIR_STORAGE_BACKEND_H__
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#define __VIR_STORAGE_BACKEND_H__
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#include "internal.h"
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#include "storage_conf.h"
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typedef char * (*virStorageBackendFindPoolSources)(virConnectPtr conn, const char *srcSpec, unsigned int flags);
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typedef int (*virStorageBackendStartPool)(virConnectPtr conn, virStoragePoolObjPtr pool);
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typedef int (*virStorageBackendBuildPool)(virConnectPtr conn, virStoragePoolObjPtr pool, unsigned int flags);
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typedef int (*virStorageBackendRefreshPool)(virConnectPtr conn, virStoragePoolObjPtr pool);
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typedef int (*virStorageBackendStopPool)(virConnectPtr conn, virStoragePoolObjPtr pool);
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typedef int (*virStorageBackendDeletePool)(virConnectPtr conn, virStoragePoolObjPtr pool, unsigned int flags);
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typedef int (*virStorageBackendCreateVol)(virConnectPtr conn, virStoragePoolObjPtr pool, virStorageVolDefPtr vol);
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typedef int (*virStorageBackendRefreshVol)(virConnectPtr conn, virStoragePoolObjPtr pool, virStorageVolDefPtr vol);
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typedef int (*virStorageBackendDeleteVol)(virConnectPtr conn, virStoragePoolObjPtr pool, virStorageVolDefPtr vol, unsigned int flags);
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typedef struct _virStorageBackend virStorageBackend;
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typedef virStorageBackend *virStorageBackendPtr;
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struct _virStorageBackend {
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int type;
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virStorageBackendFindPoolSources findPoolSources;
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virStorageBackendStartPool startPool;
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virStorageBackendBuildPool buildPool;
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virStorageBackendRefreshPool refreshPool;
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virStorageBackendStopPool stopPool;
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virStorageBackendDeletePool deletePool;
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virStorageBackendCreateVol createVol;
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virStorageBackendRefreshVol refreshVol;
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virStorageBackendDeleteVol deleteVol;
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};
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virStorageBackendPtr virStorageBackendForType(int type);
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int virStorageBackendUpdateVolInfo(virConnectPtr conn,
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virStorageVolDefPtr vol,
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int withCapacity);
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int virStorageBackendUpdateVolInfoFD(virConnectPtr conn,
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virStorageVolDefPtr vol,
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int fd,
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int withCapacity);
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void virStorageBackendWaitForDevices(virConnectPtr conn);
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char *virStorageBackendStablePath(virConnectPtr conn,
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virStoragePoolObjPtr pool,
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const char *devpath);
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typedef int (*virStorageBackendListVolRegexFunc)(virConnectPtr conn,
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virStoragePoolObjPtr pool,
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char **const groups,
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void *data);
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typedef int (*virStorageBackendListVolNulFunc)(virConnectPtr conn,
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virStoragePoolObjPtr pool,
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size_t n_tokens,
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char **const groups,
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void *data);
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int virStorageBackendRunProgRegex(virConnectPtr conn,
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virStoragePoolObjPtr pool,
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const char *const*prog,
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int nregex,
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const char **regex,
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int *nvars,
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virStorageBackendListVolRegexFunc func,
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void *data,
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int *exitstatus);
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int virStorageBackendRunProgNul(virConnectPtr conn,
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virStoragePoolObjPtr pool,
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const char **prog,
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size_t n_columns,
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virStorageBackendListVolNulFunc func,
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void *data);
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#endif /* __VIR_STORAGE_BACKEND_H__ */
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