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conf: add node_device_event handling

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Add node device event handling infrastructure to node_device_event.[ch]
This commit is contained in:
Jovanka Gulicoska 2016-07-28 14:02:51 +02:00 committed by Cole Robinson
parent fcabc1ca53
commit 9806ae04dd
4 changed files with 303 additions and 0 deletions
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5
src/Makefile.am
View File

@ -348,6 +348,9 @@ NETWORK_EVENT_SOURCES = \
STORAGE_EVENT_SOURCES = \
conf/storage_event.c conf/storage_event.h
NODE_DEVICE_EVENT_SOURCES = \
conf/node_device_event.c conf/node_device_event.h
# Network driver generic impl APIs
NETWORK_CONF_SOURCES = \
conf/network_conf.c conf/network_conf.h \
@ -399,6 +402,7 @@ CONF_SOURCES = \
$(DOMAIN_EVENT_SOURCES) \
$(NETWORK_EVENT_SOURCES) \
$(STORAGE_EVENT_SOURCES) \
$(NODE_DEVICE_EVENT_SOURCES) \
$(NETWORK_CONF_SOURCES) \
$(NWFILTER_CONF_SOURCES) \
$(NODE_DEVICE_CONF_SOURCES) \
@ -2369,6 +2373,7 @@ libvirt_setuid_rpc_client_la_SOURCES = \
conf/network_event.c \
conf/object_event.c \
conf/storage_event.c \
conf/node_device_event.c \
rpc/virnetsocket.c \
rpc/virnetsocket.h \
rpc/virnetmessage.h \

234
src/conf/node_device_event.c Normal file
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@ -0,0 +1,234 @@
/*
* node_device_event.c: node device event queue processing helpers
*
* Copyright (C) 2010-2014 Red Hat, Inc.
* Copyright (C) 2008 VirtualIron
* Copyright (C) 2013 SUSE LINUX Products GmbH, Nuernberg, Germany.
*
* 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, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "node_device_event.h"
#include "object_event.h"
#include "object_event_private.h"
#include "datatypes.h"
#include "virlog.h"
VIR_LOG_INIT("conf.node_device_event");
struct _virNodeDeviceEvent {
virObjectEvent parent;
/* Unused attribute to allow for subclass creation */
bool dummy;
};
typedef struct _virNodeDeviceEvent virNodeDeviceEvent;
typedef virNodeDeviceEvent *virNodeDeviceEventPtr;
struct _virNodeDeviceEventLifecycle {
virNodeDeviceEvent parent;
int type;
int detail;
};
typedef struct _virNodeDeviceEventLifecycle virNodeDeviceEventLifecycle;
typedef virNodeDeviceEventLifecycle *virNodeDeviceEventLifecyclePtr;
static virClassPtr virNodeDeviceEventClass;
static virClassPtr virNodeDeviceEventLifecycleClass;
static void virNodeDeviceEventDispose(void *obj);
static void virNodeDeviceEventLifecycleDispose(void *obj);
static int
virNodeDeviceEventsOnceInit(void)
{
if (!(virNodeDeviceEventClass =
virClassNew(virClassForObjectEvent(),
"virNodeDeviceEvent",
sizeof(virNodeDeviceEvent),
virNodeDeviceEventDispose)))
return -1;
if (!(virNodeDeviceEventLifecycleClass =
virClassNew(virNodeDeviceEventClass,
"virNodeDeviceEventLifecycle",
sizeof(virNodeDeviceEventLifecycle),
virNodeDeviceEventLifecycleDispose)))
return -1;
return 0;
}
VIR_ONCE_GLOBAL_INIT(virNodeDeviceEvents)
static void
virNodeDeviceEventDispose(void *obj)
{
virNodeDeviceEventPtr event = obj;
VIR_DEBUG("obj=%p", event);
}
static void
virNodeDeviceEventLifecycleDispose(void *obj)
{
virNodeDeviceEventLifecyclePtr event = obj;
VIR_DEBUG("obj=%p", event);
}
static void
virNodeDeviceEventDispatchDefaultFunc(virConnectPtr conn,
virObjectEventPtr event,
virConnectObjectEventGenericCallback cb,
void *cbopaque)
{
virNodeDevicePtr dev = virGetNodeDevice(conn,
event->meta.name);
if (!dev)
return;
switch ((virNodeDeviceEventID)event->eventID) {
case VIR_NODE_DEVICE_EVENT_ID_LIFECYCLE:
{
virNodeDeviceEventLifecyclePtr nodeDeviceLifecycleEvent;
nodeDeviceLifecycleEvent = (virNodeDeviceEventLifecyclePtr)event;
((virConnectNodeDeviceEventLifecycleCallback)cb)(conn, dev,
nodeDeviceLifecycleEvent->type,
nodeDeviceLifecycleEvent->detail,
cbopaque);
goto cleanup;
}
case VIR_NODE_DEVICE_EVENT_ID_LAST:
break;
}
VIR_WARN("Unexpected event ID %d", event->eventID);
cleanup:
virObjectUnref(dev);
}
/**
* virNodeDeviceEventStateRegisterID:
* @conn: connection to associate with callback
* @state: object event state
* @dev: node device to filter on or NULL for all node devices
* @eventID: ID of the event type to register for
* @cb: function to invoke when event occurs
* @opaque: data blob to pass to @callback
* @freecb: callback to free @opaque
* @callbackID: filled with callback ID
*
* Register the function @cb with connection @conn, from @state, for
* events of type @eventID, and return the registration handle in
* @callbackID.
*
* Returns: the number of callbacks now registered, or -1 on error
*/
int
virNodeDeviceEventStateRegisterID(virConnectPtr conn,
virObjectEventStatePtr state,
virNodeDevicePtr dev,
int eventID,
virConnectNodeDeviceEventGenericCallback cb,
void *opaque,
virFreeCallback freecb,
int *callbackID)
{
if (virNodeDeviceEventsInitialize() < 0)
return -1;
return virObjectEventStateRegisterID(conn, state, dev ? dev->name : NULL,
NULL, NULL,
virNodeDeviceEventClass, eventID,
VIR_OBJECT_EVENT_CALLBACK(cb),
opaque, freecb,
false, callbackID, false);
}
/**
* virNodeDeviceEventStateRegisterClient:
* @conn: connection to associate with callback
* @state: object event state
* @dev: node device to filter on or NULL for all node devices
* @eventID: ID of the event type to register for
* @cb: function to invoke when event occurs
* @opaque: data blob to pass to @callback
* @freecb: callback to free @opaque
* @callbackID: filled with callback ID
*
* Register the function @cb with connection @conn, from @state, for
* events of type @eventID, and return the registration handle in
* @callbackID. This version is intended for use on the client side
* of RPC.
*
* Returns: the number of callbacks now registered, or -1 on error
*/
int
virNodeDeviceEventStateRegisterClient(virConnectPtr conn,
virObjectEventStatePtr state,
virNodeDevicePtr dev,
int eventID,
virConnectNodeDeviceEventGenericCallback cb,
void *opaque,
virFreeCallback freecb,
int *callbackID)
{
if (virNodeDeviceEventsInitialize() < 0)
return -1;
return virObjectEventStateRegisterID(conn, state, dev ? dev->name : NULL,
NULL, NULL,
virNodeDeviceEventClass, eventID,
VIR_OBJECT_EVENT_CALLBACK(cb),
opaque, freecb,
false, callbackID, true);
}
/**
* virNodeDeviceEventLifecycleNew:
* @name: name of the node device object the event describes
* @type: type of lifecycle event
* @detail: more details about @type
*
* Create a new node device lifecycle event.
*/
virObjectEventPtr
virNodeDeviceEventLifecycleNew(const char *name,
int type,
int detail)
{
virNodeDeviceEventLifecyclePtr event;
if (virNodeDeviceEventsInitialize() < 0)
return NULL;
if (!(event = virObjectEventNew(virNodeDeviceEventLifecycleClass,
virNodeDeviceEventDispatchDefaultFunc,
VIR_NODE_DEVICE_EVENT_ID_LIFECYCLE,
0, name, NULL, name)))
return NULL;
event->type = type;
event->detail = detail;
return (virObjectEventPtr)event;
}

59
src/conf/node_device_event.h Normal file
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@ -0,0 +1,59 @@
/*
* node_device_event.h: node device event queue processing helpers
*
* Copyright (C) 2010-2014 Red Hat, Inc.
* Copyright (C) 2008 VirtualIron
* Copyright (C) 2013 SUSE LINUX Products GmbH, Nuernberg, Germany.
*
* 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, see
* <http://www.gnu.org/licenses/>.
*/
#include "internal.h"
#include "object_event.h"
#include "object_event_private.h"
#ifndef __NODE_DEVICE_EVENT_H__
# define __NODE_DEVICE_EVENT_H__
int
virNodeDeviceEventStateRegisterID(virConnectPtr conn,
virObjectEventStatePtr state,
virNodeDevicePtr dev,
int eventID,
virConnectNodeDeviceEventGenericCallback cb,
void *opaque,
virFreeCallback freecb,
int *callbackID)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(5)
ATTRIBUTE_NONNULL(8);
int
virNodeDeviceEventStateRegisterClient(virConnectPtr conn,
virObjectEventStatePtr state,
virNodeDevicePtr dev,
int eventID,
virConnectNodeDeviceEventGenericCallback cb,
void *opaque,
virFreeCallback freecb,
int *callbackID)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(5)
ATTRIBUTE_NONNULL(8);
virObjectEventPtr
virNodeDeviceEventLifecycleNew(const char *name,
int type,
int detail);
#endif

5
src/libvirt_private.syms
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@ -684,6 +684,11 @@ virNodeDeviceObjRemove;
virNodeDeviceObjUnlock;
# conf/node_device_event.h
virNodeDeviceEventLifecycleNew;
virNodeDeviceEventStateRegisterID;
# conf/numa_conf.h
virDomainNumaCheckABIStability;
virDomainNumaEquals;