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https://gitlab.com/libvirt/libvirt.git
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conf: add storage_event handling
Add storage event handling infrastructure to storage_event.[ch], following the network_event.[ch] pattern.
This commit is contained in:
Jovanka Gulicoska
Cole Robinson
parent
1328f98224
commit
dc7b849a0c
@ -343,6 +343,9 @@ DOMAIN_EVENT_SOURCES = \
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NETWORK_EVENT_SOURCES = \
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NETWORK_EVENT_SOURCES = \
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conf/network_event.c conf/network_event.h
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conf/network_event.c conf/network_event.h
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STORAGE_EVENT_SOURCES = \
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conf/storage_event.c conf/storage_event.h
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# Network driver generic impl APIs
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# Network driver generic impl APIs
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NETWORK_CONF_SOURCES = \
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NETWORK_CONF_SOURCES = \
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conf/network_conf.c conf/network_conf.h \
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conf/network_conf.c conf/network_conf.h \
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@ -393,6 +396,7 @@ CONF_SOURCES = \
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$(OBJECT_EVENT_SOURCES) \
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$(OBJECT_EVENT_SOURCES) \
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$(DOMAIN_EVENT_SOURCES) \
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$(DOMAIN_EVENT_SOURCES) \
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$(NETWORK_EVENT_SOURCES) \
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$(NETWORK_EVENT_SOURCES) \
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$(STORAGE_EVENT_SOURCES) \
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$(NETWORK_CONF_SOURCES) \
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$(NETWORK_CONF_SOURCES) \
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$(NWFILTER_CONF_SOURCES) \
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$(NWFILTER_CONF_SOURCES) \
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$(NODE_DEVICE_CONF_SOURCES) \
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$(NODE_DEVICE_CONF_SOURCES) \
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@ -2360,6 +2364,7 @@ libvirt_setuid_rpc_client_la_SOURCES = \
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conf/domain_event.c \
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conf/domain_event.c \
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conf/network_event.c \
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conf/network_event.c \
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conf/object_event.c \
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conf/object_event.c \
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conf/storage_event.c \
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rpc/virnetsocket.c \
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rpc/virnetsocket.c \
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rpc/virnetsocket.h \
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rpc/virnetsocket.h \
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rpc/virnetmessage.h \
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rpc/virnetmessage.h \
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237
src/conf/storage_event.c
Normal file
237
src/conf/storage_event.c
Normal file
@ -0,0 +1,237 @@
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/*
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* storage_event.c: storage event queue processing helpers
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*
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* Copyright (C) 2010-2014 Red Hat, Inc.
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* Copyright (C) 2008 VirtualIron
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* Copyright (C) 2013 SUSE LINUX Products GmbH, Nuernberg, Germany.
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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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#include <config.h>
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#include "storage_event.h"
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#include "object_event.h"
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#include "object_event_private.h"
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#include "datatypes.h"
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#include "virlog.h"
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VIR_LOG_INIT("conf.storage_event");
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struct _virStoragePoolEvent {
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virObjectEvent parent;
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/* Unused attribute to allow for subclass creation */
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bool dummy;
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};
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typedef struct _virStoragePoolEvent virStoragePoolEvent;
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typedef virStoragePoolEvent *virStoragePoolEventPtr;
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struct _virStoragePoolEventLifecycle {
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virStoragePoolEvent parent;
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int type;
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int detail;
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};
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typedef struct _virStoragePoolEventLifecycle virStoragePoolEventLifecycle;
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typedef virStoragePoolEventLifecycle *virStoragePoolEventLifecyclePtr;
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static virClassPtr virStoragePoolEventClass;
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static virClassPtr virStoragePoolEventLifecycleClass;
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static void virStoragePoolEventDispose(void *obj);
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static void virStoragePoolEventLifecycleDispose(void *obj);
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static int
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virStoragePoolEventsOnceInit(void)
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{
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if (!(virStoragePoolEventClass =
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virClassNew(virClassForObjectEvent(),
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"virStoragePoolEvent",
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sizeof(virStoragePoolEvent),
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virStoragePoolEventDispose)))
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return -1;
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if (!(virStoragePoolEventLifecycleClass =
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virClassNew(virStoragePoolEventClass,
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"virStoragePoolEventLifecycle",
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sizeof(virStoragePoolEventLifecycle),
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virStoragePoolEventLifecycleDispose)))
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return -1;
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return 0;
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}
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VIR_ONCE_GLOBAL_INIT(virStoragePoolEvents)
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static void
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virStoragePoolEventDispose(void *obj)
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{
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virStoragePoolEventPtr event = obj;
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VIR_DEBUG("obj=%p", event);
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}
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static void
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virStoragePoolEventLifecycleDispose(void *obj)
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{
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virStoragePoolEventLifecyclePtr event = obj;
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VIR_DEBUG("obj=%p", event);
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}
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static void
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virStoragePoolEventDispatchDefaultFunc(virConnectPtr conn,
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virObjectEventPtr event,
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virConnectObjectEventGenericCallback cb,
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void *cbopaque)
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{
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virStoragePoolPtr pool = virGetStoragePool(conn,
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event->meta.name,
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event->meta.uuid,
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NULL, NULL);
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if (!pool)
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return;
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switch ((virStoragePoolEventID)event->eventID) {
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case VIR_STORAGE_POOL_EVENT_ID_LIFECYCLE:
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{
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virStoragePoolEventLifecyclePtr storagePoolLifecycleEvent;
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storagePoolLifecycleEvent = (virStoragePoolEventLifecyclePtr)event;
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((virConnectStoragePoolEventLifecycleCallback)cb)(conn, pool,
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storagePoolLifecycleEvent->type,
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storagePoolLifecycleEvent->detail,
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cbopaque);
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goto cleanup;
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}
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case VIR_STORAGE_POOL_EVENT_ID_LAST:
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break;
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}
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VIR_WARN("Unexpected event ID %d", event->eventID);
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cleanup:
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virObjectUnref(pool);
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}
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/**
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* virStoragePoolEventStateRegisterID:
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* @conn: connection to associate with callback
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* @state: object event state
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* @pool: storage pool to filter on or NULL for all storage pools
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* @eventID: ID of the event type to register for
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* @cb: function to invoke when event occurs
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* @opaque: data blob to pass to @callback
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* @freecb: callback to free @opaque
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* @callbackID: filled with callback ID
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*
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* Register the function @cb with connection @conn, from @state, for
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* events of type @eventID, and return the registration handle in
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* @callbackID.
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*
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* Returns: the number of callbacks now registered, or -1 on error
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*/
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int
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virStoragePoolEventStateRegisterID(virConnectPtr conn,
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virObjectEventStatePtr state,
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virStoragePoolPtr pool,
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int eventID,
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virConnectStoragePoolEventGenericCallback cb,
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void *opaque,
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virFreeCallback freecb,
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int *callbackID)
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{
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if (virStoragePoolEventsInitialize() < 0)
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return -1;
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return virObjectEventStateRegisterID(conn, state, pool ? pool->uuid : NULL,
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NULL, NULL,
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virStoragePoolEventClass, eventID,
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VIR_OBJECT_EVENT_CALLBACK(cb),
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opaque, freecb,
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false, callbackID, false);
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}
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/**
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* virStoragePoolEventStateRegisterClient:
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* @conn: connection to associate with callback
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* @state: object event state
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* @pool: storage pool to filter on or NULL for all storage pools
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* @eventID: ID of the event type to register for
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* @cb: function to invoke when event occurs
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* @opaque: data blob to pass to @callback
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* @freecb: callback to free @opaque
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* @callbackID: filled with callback ID
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*
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* Register the function @cb with connection @conn, from @state, for
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* events of type @eventID, and return the registration handle in
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* @callbackID. This version is intended for use on the client side
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* of RPC.
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*
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* Returns: the number of callbacks now registered, or -1 on error
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*/
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int
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virStoragePoolEventStateRegisterClient(virConnectPtr conn,
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virObjectEventStatePtr state,
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virStoragePoolPtr pool,
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int eventID,
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virConnectStoragePoolEventGenericCallback cb,
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void *opaque,
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virFreeCallback freecb,
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int *callbackID)
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{
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if (virStoragePoolEventsInitialize() < 0)
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return -1;
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return virObjectEventStateRegisterID(conn, state, pool ? pool->uuid : NULL,
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NULL, NULL,
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virStoragePoolEventClass, eventID,
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VIR_OBJECT_EVENT_CALLBACK(cb),
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opaque, freecb,
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false, callbackID, true);
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}
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/**
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* virStoragePoolEventLifecycleNew:
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* @name: name of the storage pool object the event describes
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* @uuid: uuid of the storage pool object the event describes
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* @type: type of lifecycle event
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* @detail: more details about @type
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*
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* Create a new storage pool lifecycle event.
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*/
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virObjectEventPtr
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virStoragePoolEventLifecycleNew(const char *name,
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const unsigned char *uuid,
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int type,
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int detail)
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{
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virStoragePoolEventLifecyclePtr event;
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if (virStoragePoolEventsInitialize() < 0)
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return NULL;
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if (!(event = virObjectEventNew(virStoragePoolEventLifecycleClass,
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virStoragePoolEventDispatchDefaultFunc,
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VIR_STORAGE_POOL_EVENT_ID_LIFECYCLE,
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0, name, uuid)))
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return NULL;
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event->type = type;
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event->detail = detail;
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return (virObjectEventPtr)event;
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}
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60
src/conf/storage_event.h
Normal file
60
src/conf/storage_event.h
Normal file
@ -0,0 +1,60 @@
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/*
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* storage_event.h: storage event queue processing helpers
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*
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* Copyright (C) 2010-2014 Red Hat, Inc.
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* Copyright (C) 2008 VirtualIron
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* Copyright (C) 2013 SUSE LINUX Products GmbH, Nuernberg, Germany.
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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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#include "internal.h"
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#include "object_event.h"
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#include "object_event_private.h"
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#ifndef __STORAGE_EVENT_H__
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# define __STORAGE_EVENT_H__
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int
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virStoragePoolEventStateRegisterID(virConnectPtr conn,
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virObjectEventStatePtr state,
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virStoragePoolPtr pool,
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int eventID,
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virConnectStoragePoolEventGenericCallback cb,
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void *opaque,
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virFreeCallback freecb,
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int *callbackID)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(5)
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ATTRIBUTE_NONNULL(8);
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int
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virStoragePoolEventStateRegisterClient(virConnectPtr conn,
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virObjectEventStatePtr state,
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virStoragePoolPtr pool,
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int eventID,
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virConnectStoragePoolEventGenericCallback cb,
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void *opaque,
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virFreeCallback freecb,
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int *callbackID)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(5)
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ATTRIBUTE_NONNULL(8);
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virObjectEventPtr
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virStoragePoolEventLifecycleNew(const char *name,
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const unsigned char *uuid,
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int type,
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int detail);
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#endif
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@ -878,6 +878,11 @@ virStorageVolTypeFromString;
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virStorageVolTypeToString;
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virStorageVolTypeToString;
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# conf/storage_event.h
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virStoragePoolEventLifecycleNew;
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virStoragePoolEventStateRegisterID;
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# conf/virchrdev.h
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# conf/virchrdev.h
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virChrdevAlloc;
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virChrdevAlloc;
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virChrdevFree;
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virChrdevFree;
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Block a user