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Code Releases Activity

Remove the event namespace concept

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The event namespace concept is mostly redundant information.
With the re-written dispatcher, the namespace is only used
for equality comparisons between event IDs. This can be solved
by just comparing virClassPtr instances instead.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2013-12-11 14:10:34 +00:00
parent 8a4820ab23
commit dbcc38da15
5 changed files with 36 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/conf/domain_event.c
View File

@ -442,6 +442,7 @@ virDomainEventCallbackListAdd(virConnectPtr conn,
virFreeCallback freecb)
{
return virObjectEventCallbackListAddID(conn, cbList, NULL, NULL, 0,
virDomainEventClass,
VIR_DOMAIN_EVENT_ID_LIFECYCLE,
VIR_OBJECT_EVENT_CALLBACK(callback),
opaque, freecb, NULL);
@ -1372,6 +1373,9 @@ virDomainEventStateRegister(virConnectPtr conn,
{
int ret = -1;
if (virDomainEventsInitialize() < 0)
return -1;
virObjectEventStateLock(state);
if ((state->callbacks->count == 0) &&
@ -1426,14 +1430,17 @@ virDomainEventStateRegisterID(virConnectPtr conn,
virFreeCallback freecb,
int *callbackID)
{
if (virDomainEventsInitialize() < 0)
return -1;
if (dom)
return virObjectEventStateRegisterID(conn, state, dom->uuid, dom->name,
dom->id, eventID,
dom->id, virDomainEventClass, eventID,
VIR_OBJECT_EVENT_CALLBACK(cb),
opaque, freecb, callbackID);
else
return virObjectEventStateRegisterID(conn, state, NULL, NULL, 0,
eventID,
virDomainEventClass, eventID,
VIR_OBJECT_EVENT_CALLBACK(cb),
opaque, freecb, callbackID);
}

15
src/conf/network_event.c
View File

@ -97,7 +97,7 @@ virNetworkEventDispatchDefaultFunc(virConnectPtr conn,
if (!net)
return;
switch ((virNetworkEventID) (event->eventID &0xFF)) {
switch ((virNetworkEventID)event->eventID) {
case VIR_NETWORK_EVENT_ID_LIFECYCLE:
{
virNetworkEventLifecyclePtr networkLifecycleEvent;
@ -146,14 +146,18 @@ virNetworkEventStateRegisterID(virConnectPtr conn,
virFreeCallback freecb,
int *callbackID)
{
int nsEventID = (VIR_EVENT_NAMESPACE_NETWORK << 8) + eventID;
if (virNetworkEventsInitialize() < 0)
return -1;
if (net)
return virObjectEventStateRegisterID(conn, state,
net->uuid, net->name, 0, nsEventID,
net->uuid, net->name, 0,
virNetworkEventClass, eventID,
cb, opaque, freecb, callbackID);
else
return virObjectEventStateRegisterID(conn, state,
NULL, NULL, 0, nsEventID,
NULL, NULL, 0,
virNetworkEventClass, eventID,
cb, opaque, freecb, callbackID);
}
@ -164,14 +168,13 @@ virNetworkEventLifecycleNew(const char *name,
int detail)
{
virNetworkEventLifecyclePtr event;
int eventId = (VIR_EVENT_NAMESPACE_NETWORK << 8) + VIR_NETWORK_EVENT_ID_LIFECYCLE;
if (virNetworkEventsInitialize() < 0)
return NULL;
if (!(event = virObjectEventNew(virNetworkEventLifecycleClass,
virNetworkEventDispatchDefaultFunc,
eventId,
VIR_NETWORK_EVENT_ID_LIFECYCLE,
0, name, uuid)))
return NULL;

17
src/conf/object_event.c
View File

@ -230,6 +230,7 @@ virObjectEventCallbackListPurgeMarked(virObjectEventCallbackListPtr cbList)
* @uuid: the uuid of the object to filter on
* @name: the name of the object to filter on
* @id: the ID of the object to filter on
* @klass: the base event class
* @eventID: the event ID
* @callback: the callback to add
* @opaque: opaque data tio pass to callback
@ -243,6 +244,7 @@ virObjectEventCallbackListAddID(virConnectPtr conn,
unsigned char uuid[VIR_UUID_BUFLEN],
const char *name,
int id,
virClassPtr klass,
int eventID,
virConnectObjectEventGenericCallback callback,
void *opaque,
@ -261,6 +263,7 @@ virObjectEventCallbackListAddID(virConnectPtr conn,
/* check if we already have this callback on our list */
for (i = 0; i < cbList->count; i++) {
if (cbList->callbacks[i]->cb == VIR_OBJECT_EVENT_CALLBACK(callback) &&
cbList->callbacks[i]->klass == klass &&
cbList->callbacks[i]->eventID == eventID &&
cbList->callbacks[i]->conn == conn &&
((uuid && cbList->callbacks[i]->meta &&
@ -277,6 +280,7 @@ virObjectEventCallbackListAddID(virConnectPtr conn,
goto error;
event->conn = conn;
event->cb = callback;
event->klass = klass;
event->eventID = eventID;
event->opaque = opaque;
event->freecb = freecb;
@ -302,7 +306,8 @@ virObjectEventCallbackListAddID(virConnectPtr conn,
event->callbackID = cbList->nextID++;
for (i = 0; i < cbList->count; i++) {
if (cbList->callbacks[i]->eventID == eventID &&
if (cbList->callbacks[i]->klass == klass &&
cbList->callbacks[i]->eventID == eventID &&
cbList->callbacks[i]->conn == conn &&
!cbList->callbacks[i]->deleted)
ret++;
@ -540,6 +545,8 @@ virObjectEventDispatchMatchCallback(virObjectEventPtr event,
return 0;
if (cb->deleted)
return 0;
if (!virObjectIsClass(event, cb->klass))
return 0;
if (cb->eventID != virObjectEventGetEventID(event))
return 0;
@ -655,6 +662,7 @@ virObjectEventStateFlush(virObjectEventStatePtr state)
* virObjectEventStateRegisterID:
* @conn: connection to associate with callback
* @state: domain event state
* @klass: the base event class
* @eventID: ID of the event type to register for
* @cb: function to remove from event
* @opaque: data blob to pass to callback
@ -672,6 +680,7 @@ virObjectEventStateRegisterID(virConnectPtr conn,
unsigned char *uuid,
const char *name,
int id,
virClassPtr klass,
int eventID,
virConnectObjectEventGenericCallback cb,
void *opaque,
@ -694,7 +703,8 @@ virObjectEventStateRegisterID(virConnectPtr conn,
}
ret = virObjectEventCallbackListAddID(conn, state->callbacks,
uuid, name, id, eventID, cb, opaque, freecb,
uuid, name, id, klass, eventID,
cb, opaque, freecb,
callbackID);
if (ret == -1 &&
@ -769,9 +779,6 @@ virObjectEventStateEventID(virConnectPtr conn,
virObjectEventStateLock(state);
ret = virObjectEventCallbackListEventID(conn,
state->callbacks, callbackID);
/* Callers don't need to know we are namespacing the event Ids */
if (ret >= 0)
ret = (0xFF & ret);
virObjectEventStateUnlock(state);
return ret;
}

13
src/conf/object_event.h
View File

@ -24,17 +24,11 @@
#include "internal.h"
#include "virobject.h"
#ifndef __OBJECT_EVENT_H__
# define __OBJECT_EVENT_H__
/** Event IDs are computed in the following way:
virEventNamespaceID << 8 + vir*EventId
*/
typedef enum {
VIR_EVENT_NAMESPACE_DOMAIN = 0, /* 0 to keep value of virDomainEventId unchanged */
VIR_EVENT_NAMESPACE_NETWORK = 1,
} virEventNamespaceID;
typedef struct _virObjectEventCallback virObjectEventCallback;
typedef virObjectEventCallback *virObjectEventCallbackPtr;
@ -78,12 +72,13 @@ virObjectEventStateRegisterID(virConnectPtr conn,
unsigned char *uuid,
const char *name,
int id,
virClassPtr klass,
int eventID,
virConnectObjectEventGenericCallback cb,
void *opaque,
virFreeCallback freecb,
int *callbackID)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(7);
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(8);
int
virObjectEventStateDeregisterID(virConnectPtr conn,
virObjectEventStatePtr state,

2
src/conf/object_event_private.h
View File

@ -60,6 +60,7 @@ struct _virObjectEventState {
struct _virObjectEventCallback {
int callbackID;
virClassPtr klass;
int eventID;
virConnectPtr conn;
virObjectMetaPtr meta;
@ -94,6 +95,7 @@ virObjectEventCallbackListAddID(virConnectPtr conn,
unsigned char *uuid,
const char *name,
int id,
virClassPtr klass,
int eventID,
virConnectObjectEventGenericCallback callback,
void *opaque,