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f35fa0fd95
Now all drivers are converted to use their global state directly, there is no need for private data fields for the secondary drivers in virConnectPtr
553 lines
25 KiB
C
553 lines
25 KiB
C
/*
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* datatypes.h: management of structs for public data types
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*
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* Copyright (C) 2006-2014 Red Hat, Inc.
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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, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef __VIR_DATATYPES_H_
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# define __VIR_DATATYPES_H_
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# include "internal.h"
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# include "driver.h"
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# include "virthread.h"
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# include "virobject.h"
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# include "viruuid.h"
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extern virClassPtr virConnectClass;
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extern virClassPtr virDomainClass;
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extern virClassPtr virDomainSnapshotClass;
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extern virClassPtr virInterfaceClass;
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extern virClassPtr virNetworkClass;
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extern virClassPtr virNodeDeviceClass;
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extern virClassPtr virNWFilterClass;
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extern virClassPtr virSecretClass;
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extern virClassPtr virStreamClass;
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extern virClassPtr virStorageVolClass;
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extern virClassPtr virStoragePoolClass;
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# define virCheckConnectReturn(obj, retval) \
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do { \
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if (!virObjectIsClass(obj, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_THIS, VIR_ERR_INVALID_CONN, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckConnectGoto(obj, label) \
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do { \
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if (!virObjectIsClass(obj, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_THIS, VIR_ERR_INVALID_CONN, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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goto label; \
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} \
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} while (0)
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# define virCheckDomainReturn(obj, retval) \
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do { \
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virDomainPtr _dom = (obj); \
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if (!virObjectIsClass(_dom, virDomainClass) || \
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!virObjectIsClass(_dom->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_DOM, VIR_ERR_INVALID_DOMAIN, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckDomainGoto(obj, label) \
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do { \
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virDomainPtr _dom = (obj); \
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if (!virObjectIsClass(_dom, virDomainClass) || \
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!virObjectIsClass(_dom->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_DOM, VIR_ERR_INVALID_DOMAIN, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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goto label; \
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} \
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} while (0)
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# define virCheckNetworkReturn(obj, retval) \
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do { \
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virNetworkPtr _net = (obj); \
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if (!virObjectIsClass(_net, virNetworkClass) || \
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!virObjectIsClass(_net->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_NETWORK, \
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VIR_ERR_INVALID_NETWORK, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckNetworkGoto(obj, label) \
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do { \
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virNetworkPtr _net = (obj); \
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if (!virObjectIsClass(_net, virNetworkClass) || \
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!virObjectIsClass(_net->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_NETWORK, \
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VIR_ERR_INVALID_NETWORK, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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goto label; \
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} \
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} while (0)
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# define virCheckInterfaceReturn(obj, retval) \
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do { \
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virInterfacePtr _iface = (obj); \
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if (!virObjectIsClass(_iface, virInterfaceClass) || \
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!virObjectIsClass(_iface->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_INTERFACE, \
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VIR_ERR_INVALID_INTERFACE, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckStoragePoolReturn(obj, retval) \
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do { \
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virStoragePoolPtr _pool = (obj); \
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if (!virObjectIsClass(_pool, virStoragePoolClass) || \
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!virObjectIsClass(_pool->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_STORAGE, \
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VIR_ERR_INVALID_STORAGE_POOL, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckStorageVolReturn(obj, retval) \
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do { \
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virStorageVolPtr _vol = (obj); \
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if (!virObjectIsClass(_vol, virStorageVolClass) || \
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!virObjectIsClass(_vol->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_STORAGE, \
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VIR_ERR_INVALID_STORAGE_VOL, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckStorageVolGoto(obj, label) \
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do { \
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virStorageVolPtr _vol = (obj); \
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if (!virObjectIsClass(_vol, virStorageVolClass) || \
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!virObjectIsClass(_vol->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_STORAGE, \
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VIR_ERR_INVALID_STORAGE_VOL, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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goto label; \
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} \
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} while (0)
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# define virCheckNodeDeviceReturn(obj, retval) \
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do { \
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virNodeDevicePtr _node = (obj); \
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if (!virObjectIsClass(_node, virNodeDeviceClass) || \
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!virObjectIsClass(_node->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_NODEDEV, \
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VIR_ERR_INVALID_NODE_DEVICE, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckSecretReturn(obj, retval) \
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do { \
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virSecretPtr _secret = (obj); \
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if (!virObjectIsClass(_secret, virSecretClass) || \
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!virObjectIsClass(_secret->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_SECRET, \
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VIR_ERR_INVALID_SECRET, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckStreamReturn(obj, retval) \
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do { \
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virStreamPtr _st = (obj); \
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if (!virObjectIsClass(_st, virStreamClass) || \
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!virObjectIsClass(_st->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_STREAMS, \
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VIR_ERR_INVALID_STREAM, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckStreamGoto(obj, label) \
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do { \
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virStreamPtr _st = (obj); \
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if (!virObjectIsClass(_st, virStreamClass) || \
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!virObjectIsClass(_st->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_STREAMS, \
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VIR_ERR_INVALID_STREAM, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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goto label; \
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} \
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} while (0)
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# define virCheckNWFilterReturn(obj, retval) \
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do { \
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virNWFilterPtr _nw = (obj); \
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if (!virObjectIsClass(_nw, virNWFilterClass) || \
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!virObjectIsClass(_nw->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_NWFILTER, \
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VIR_ERR_INVALID_NWFILTER, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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# define virCheckDomainSnapshotReturn(obj, retval) \
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do { \
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virDomainSnapshotPtr _snap = (obj); \
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if (!virObjectIsClass(_snap, virDomainSnapshotClass) || \
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!virObjectIsClass(_snap->domain, virDomainClass) || \
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!virObjectIsClass(_snap->domain->conn, virConnectClass)) { \
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virReportErrorHelper(VIR_FROM_DOMAIN_SNAPSHOT, \
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VIR_ERR_INVALID_DOMAIN_SNAPSHOT, \
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__FILE__, __FUNCTION__, __LINE__, \
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__FUNCTION__); \
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virDispatchError(NULL); \
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return retval; \
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} \
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} while (0)
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/* Helper macros to implement VIR_DOMAIN_DEBUG using just C99. This
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* assumes you pass fewer than 15 arguments to VIR_DOMAIN_DEBUG, but
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* can easily be expanded if needed.
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*
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* Note that gcc provides extensions of "define a(b...) b" or
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* "define a(b,...) b,##__VA_ARGS__" as a means of eliding a comma
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* when no var-args are present, but we don't want to require gcc.
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*/
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# define VIR_ARG15(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, \
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_11, _12, _13, _14, _15, ...) _15
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# define VIR_HAS_COMMA(...) VIR_ARG15(__VA_ARGS__, \
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0)
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/* Form the name VIR_DOMAIN_DEBUG_[01], then call that macro,
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* according to how many arguments are present. Two-phase due to
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* macro expansion rules. */
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# define VIR_DOMAIN_DEBUG_EXPAND(a, b, ...) \
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VIR_DOMAIN_DEBUG_PASTE(a, b, __VA_ARGS__)
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# define VIR_DOMAIN_DEBUG_PASTE(a, b, ...) \
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a##b(__VA_ARGS__)
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/* Internal use only, when VIR_DOMAIN_DEBUG has one argument. */
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# define VIR_DOMAIN_DEBUG_0(dom) \
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VIR_DOMAIN_DEBUG_2(dom, "%s", "")
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/* Internal use only, when VIR_DOMAIN_DEBUG has three or more arguments. */
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# define VIR_DOMAIN_DEBUG_1(dom, fmt, ...) \
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VIR_DOMAIN_DEBUG_2(dom, ", " fmt, __VA_ARGS__)
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/* Internal use only, with final format. */
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# define VIR_DOMAIN_DEBUG_2(dom, fmt, ...) \
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do { \
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char _uuidstr[VIR_UUID_STRING_BUFLEN]; \
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const char *_domname = NULL; \
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\
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if (!virObjectIsClass(dom, virDomainClass)) { \
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memset(_uuidstr, 0, sizeof(_uuidstr)); \
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} else { \
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virUUIDFormat((dom)->uuid, _uuidstr); \
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_domname = (dom)->name; \
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} \
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\
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VIR_DEBUG("dom=%p, (VM: name=%s, uuid=%s)" fmt, \
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dom, NULLSTR(_domname), _uuidstr, __VA_ARGS__); \
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} while (0)
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/**
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* VIR_DOMAIN_DEBUG:
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* @dom: domain
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* @fmt: optional format for additional information
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* @...: optional arguments corresponding to @fmt.
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*/
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# define VIR_DOMAIN_DEBUG(...) \
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VIR_DOMAIN_DEBUG_EXPAND(VIR_DOMAIN_DEBUG_, \
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VIR_HAS_COMMA(__VA_ARGS__), \
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__VA_ARGS__)
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typedef struct _virConnectCloseCallbackData virConnectCloseCallbackData;
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typedef virConnectCloseCallbackData *virConnectCloseCallbackDataPtr;
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/**
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* Internal structure holding data related to connection close callbacks.
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*/
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struct _virConnectCloseCallbackData {
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virObjectLockable parent;
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virConnectPtr conn;
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virConnectCloseFunc callback;
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void *opaque;
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virFreeCallback freeCallback;
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};
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/**
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* _virConnect:
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*
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* Internal structure associated to a connection
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*/
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struct _virConnect {
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virObject object;
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/* All the variables from here, until the 'lock' declaration
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* are setup at time of connection open, and never changed
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* since. Thus no need to lock when accessing them
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*/
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unsigned int flags; /* a set of connection flags */
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virURIPtr uri; /* connection URI */
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/* The underlying hypervisor driver and network driver. */
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virHypervisorDriverPtr driver;
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virNetworkDriverPtr networkDriver;
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virInterfaceDriverPtr interfaceDriver;
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virStorageDriverPtr storageDriver;
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virNodeDeviceDriverPtr nodeDeviceDriver;
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virSecretDriverPtr secretDriver;
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virNWFilterDriverPtr nwfilterDriver;
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/* Private data pointer which can be used by driver and
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* network driver as they wish.
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* NB: 'private' is a reserved word in C++.
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*/
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void * privateData;
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/*
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* The lock mutex must be acquired before accessing/changing
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* any of members following this point, or changing the ref
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* count of any virDomain/virNetwork object associated with
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* this connection
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*/
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virMutex lock;
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/* Per-connection error. */
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virError err; /* the last error */
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virErrorFunc handler; /* associated handlet */
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void *userData; /* the user data */
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/* Per-connection close callback */
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virConnectCloseCallbackDataPtr closeCallback;
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};
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/**
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* _virDomain:
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*
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* Internal structure associated to a domain
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*/
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struct _virDomain {
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virObject object;
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virConnectPtr conn; /* pointer back to the connection */
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char *name; /* the domain external name */
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int id; /* the domain ID */
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unsigned char uuid[VIR_UUID_BUFLEN]; /* the domain unique identifier */
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};
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/**
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* _virNetwork:
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*
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* Internal structure associated to a domain
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*/
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struct _virNetwork {
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virObject object;
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virConnectPtr conn; /* pointer back to the connection */
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char *name; /* the network external name */
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unsigned char uuid[VIR_UUID_BUFLEN]; /* the network unique identifier */
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};
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/**
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* _virInterface:
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*
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* Internal structure associated to a physical host interface
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*/
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struct _virInterface {
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virObject object;
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virConnectPtr conn; /* pointer back to the connection */
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char *name; /* the network external name */
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char *mac; /* the interface MAC address */
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};
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/**
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* _virStoragePool:
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*
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* Internal structure associated to a storage pool
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*/
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struct _virStoragePool {
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virObject object;
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virConnectPtr conn; /* pointer back to the connection */
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char *name; /* the storage pool external name */
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unsigned char uuid[VIR_UUID_BUFLEN]; /* the storage pool unique identifier */
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/* Private data pointer which can be used by driver as they wish.
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* Cleanup function pointer can be hooked to provide custom cleanup
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* operation.
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*/
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void *privateData;
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virFreeCallback privateDataFreeFunc;
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};
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/**
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* _virStorageVol:
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*
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* Internal structure associated to a storage volume
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*/
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struct _virStorageVol {
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virObject object;
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virConnectPtr conn; /* pointer back to the connection */
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char *pool; /* Pool name of owner */
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char *name; /* the storage vol external name */
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char *key; /* unique key for storage vol */
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/* Private data pointer which can be used by driver as they wish.
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* Cleanup function pointer can be hooked to provide custom cleanup
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* operation.
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*/
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void *privateData;
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virFreeCallback privateDataFreeFunc;
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};
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/**
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* _virNodeDevice:
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*
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* Internal structure associated with a node device
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*/
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struct _virNodeDevice {
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virObject object;
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virConnectPtr conn; /* pointer back to the connection */
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char *name; /* device name (unique on node) */
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char *parent; /* parent device name */
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};
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/**
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* _virSecret:
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*
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* Internal structure associated with a secret
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*/
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struct _virSecret {
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virObject object;
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virConnectPtr conn; /* pointer back to the connection */
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unsigned char uuid[VIR_UUID_BUFLEN]; /* the secret unique identifier */
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int usageType; /* the type of usage */
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char *usageID; /* the usage's unique identifier */
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};
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typedef int (*virStreamAbortFunc)(virStreamPtr, void *opaque);
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typedef int (*virStreamFinishFunc)(virStreamPtr, void *opaque);
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/**
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* _virStream:
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*
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* Internal structure associated with an input stream
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*/
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struct _virStream {
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virObject object;
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virConnectPtr conn;
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unsigned int flags;
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virStreamDriverPtr driver;
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void *privateData;
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};
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/**
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* _virDomainSnapshot
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*
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* Internal structure associated with a domain snapshot
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*/
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struct _virDomainSnapshot {
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virObject object;
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char *name;
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virDomainPtr domain;
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};
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/**
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* _virNWFilter:
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*
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* Internal structure associated to a network filter
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*/
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struct _virNWFilter {
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virObject object;
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virConnectPtr conn; /* pointer back to the connection */
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char *name; /* the network filter external name */
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unsigned char uuid[VIR_UUID_BUFLEN]; /* the network filter unique identifier */
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};
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/*
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* Helper APIs for allocating new object instances
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*/
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virConnectPtr virGetConnect(void);
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virDomainPtr virGetDomain(virConnectPtr conn,
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const char *name,
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const unsigned char *uuid);
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virNetworkPtr virGetNetwork(virConnectPtr conn,
|
|
const char *name,
|
|
const unsigned char *uuid);
|
|
virInterfacePtr virGetInterface(virConnectPtr conn,
|
|
const char *name,
|
|
const char *mac);
|
|
virStoragePoolPtr virGetStoragePool(virConnectPtr conn,
|
|
const char *name,
|
|
const unsigned char *uuid,
|
|
void *privateData,
|
|
virFreeCallback freeFunc);
|
|
virStorageVolPtr virGetStorageVol(virConnectPtr conn,
|
|
const char *pool,
|
|
const char *name,
|
|
const char *key,
|
|
void *privateData,
|
|
virFreeCallback freeFunc);
|
|
virNodeDevicePtr virGetNodeDevice(virConnectPtr conn,
|
|
const char *name);
|
|
virSecretPtr virGetSecret(virConnectPtr conn,
|
|
const unsigned char *uuid,
|
|
int usageType,
|
|
const char *usageID);
|
|
virStreamPtr virGetStream(virConnectPtr conn);
|
|
virNWFilterPtr virGetNWFilter(virConnectPtr conn,
|
|
const char *name,
|
|
const unsigned char *uuid);
|
|
virDomainSnapshotPtr virGetDomainSnapshot(virDomainPtr domain,
|
|
const char *name);
|
|
|
|
#endif /* __VIR_DATATYPES_H__ */
|