libvirt/src/conf/secret_event.c
Cole Robinson af36f8a641 Require a semicolon for VIR_ONCE_GLOBAL_INIT calls
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>). VIR_ONCE_GLOBAL_INIT is almost
exclusively called without an ending semicolon, but let's
standardize on using one like the other macros.

Add a dummy struct definition at the end of the macro, so
the compiler will require callers to add a semicolon.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
2019-02-03 17:46:29 -05:00

303 lines
9.5 KiB
C

/*
* secret_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 "secret_event.h"
#include "object_event.h"
#include "object_event_private.h"
#include "datatypes.h"
#include "virlog.h"
VIR_LOG_INIT("conf.secret_event");
struct _virSecretEvent {
virObjectEvent parent;
/* Unused attribute to allow for subclass creation */
bool dummy;
};
typedef struct _virSecretEvent virSecretEvent;
typedef virSecretEvent *virSecretEventPtr;
struct _virSecretEventLifecycle {
virSecretEvent parent;
int type;
int detail;
};
typedef struct _virSecretEventLifecycle virSecretEventLifecycle;
typedef virSecretEventLifecycle *virSecretEventLifecyclePtr;
struct _virSecretEventValueChanged {
virSecretEvent parent;
bool dummy;
};
typedef struct _virSecretEventValueChanged virSecretEventValueChanged;
typedef virSecretEventValueChanged *virSecretEventValueChangedPtr;
static virClassPtr virSecretEventClass;
static virClassPtr virSecretEventLifecycleClass;
static virClassPtr virSecretEventValueChangedClass;
static void virSecretEventDispose(void *obj);
static void virSecretEventLifecycleDispose(void *obj);
static void virSecretEventValueChangedDispose(void *obj);
static int
virSecretEventsOnceInit(void)
{
if (!VIR_CLASS_NEW(virSecretEvent, virClassForObjectEvent()))
return -1;
if (!VIR_CLASS_NEW(virSecretEventLifecycle, virSecretEventClass))
return -1;
if (!VIR_CLASS_NEW(virSecretEventValueChanged, virSecretEventClass))
return -1;
return 0;
}
VIR_ONCE_GLOBAL_INIT(virSecretEvents);
static void
virSecretEventDispose(void *obj)
{
virSecretEventPtr event = obj;
VIR_DEBUG("obj=%p", event);
}
static void
virSecretEventLifecycleDispose(void *obj)
{
virSecretEventLifecyclePtr event = obj;
VIR_DEBUG("obj=%p", event);
}
static void
virSecretEventValueChangedDispose(void *obj)
{
virSecretEventValueChangedPtr event = obj;
VIR_DEBUG("obj=%p", event);
}
static void
virSecretEventDispatchDefaultFunc(virConnectPtr conn,
virObjectEventPtr event,
virConnectObjectEventGenericCallback cb,
void *cbopaque)
{
virSecretPtr secret = virGetSecret(conn,
event->meta.uuid,
event->meta.id,
event->meta.name);
if (!secret)
return;
switch ((virSecretEventID)event->eventID) {
case VIR_SECRET_EVENT_ID_LIFECYCLE:
{
virSecretEventLifecyclePtr secretLifecycleEvent;
secretLifecycleEvent = (virSecretEventLifecyclePtr)event;
((virConnectSecretEventLifecycleCallback)cb)(conn, secret,
secretLifecycleEvent->type,
secretLifecycleEvent->detail,
cbopaque);
goto cleanup;
}
case VIR_SECRET_EVENT_ID_VALUE_CHANGED:
{
((virConnectSecretEventGenericCallback)cb)(conn, secret,
cbopaque);
goto cleanup;
}
case VIR_SECRET_EVENT_ID_LAST:
break;
}
VIR_WARN("Unexpected event ID %d", event->eventID);
cleanup:
virObjectUnref(secret);
}
/**
* virSecretEventStateRegisterID:
* @conn: connection to associate with callback
* @state: object event state
* @secret: secret to filter on or NULL for all node secrets
* @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
virSecretEventStateRegisterID(virConnectPtr conn,
virObjectEventStatePtr state,
virSecretPtr secret,
int eventID,
virConnectSecretEventGenericCallback cb,
void *opaque,
virFreeCallback freecb,
int *callbackID)
{
char uuidstr[VIR_UUID_STRING_BUFLEN];
if (virSecretEventsInitialize() < 0)
return -1;
if (secret)
virUUIDFormat(secret->uuid, uuidstr);
return virObjectEventStateRegisterID(conn, state, secret ? uuidstr : NULL,
NULL, NULL,
virSecretEventClass, eventID,
VIR_OBJECT_EVENT_CALLBACK(cb),
opaque, freecb,
false, callbackID, false);
}
/**
* virSecretEventStateRegisterClient:
* @conn: connection to associate with callback
* @state: object event state
* @secret: secret to filter on or NULL for all node secrets
* @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
virSecretEventStateRegisterClient(virConnectPtr conn,
virObjectEventStatePtr state,
virSecretPtr secret,
int eventID,
virConnectSecretEventGenericCallback cb,
void *opaque,
virFreeCallback freecb,
int *callbackID)
{
char uuidstr[VIR_UUID_STRING_BUFLEN];
if (virSecretEventsInitialize() < 0)
return -1;
if (secret)
virUUIDFormat(secret->uuid, uuidstr);
return virObjectEventStateRegisterID(conn, state, secret ? uuidstr : NULL,
NULL, NULL,
virSecretEventClass, eventID,
VIR_OBJECT_EVENT_CALLBACK(cb),
opaque, freecb,
false, callbackID, true);
}
/**
* virSecretEventLifecycleNew:
* @uuid: UUID of the secret object the event describes
* @usage_type: type of usage for the secret
* @usage_id: usage specific identifier for the secret
* @type: type of lifecycle event
* @detail: more details about @type
*
* Create a new secret lifecycle event.
*/
virObjectEventPtr
virSecretEventLifecycleNew(const unsigned char *uuid,
int usage_type,
const char *usage_id,
int type,
int detail)
{
virSecretEventLifecyclePtr event;
char uuidstr[VIR_UUID_STRING_BUFLEN];
if (virSecretEventsInitialize() < 0)
return NULL;
virUUIDFormat(uuid, uuidstr);
VIR_DEBUG("Event %s %d %s %d %d", uuidstr, usage_type, usage_id, type, detail);
if (!(event = virObjectEventNew(virSecretEventLifecycleClass,
virSecretEventDispatchDefaultFunc,
VIR_SECRET_EVENT_ID_LIFECYCLE,
usage_type, usage_id, uuid, uuidstr)))
return NULL;
event->type = type;
event->detail = detail;
return (virObjectEventPtr)event;
}
/**
* virSecretEventValueChangedNew:
* @uuid: UUID of the secret object the event describes
*
* Create a new secret lifecycle event.
*/
virObjectEventPtr
virSecretEventValueChangedNew(const unsigned char *uuid,
int usage_type,
const char *usage_id)
{
virSecretEventValueChangedPtr event;
char uuidstr[VIR_UUID_STRING_BUFLEN];
if (virSecretEventsInitialize() < 0)
return NULL;
virUUIDFormat(uuid, uuidstr);
VIR_DEBUG("Event %s %d %s", uuidstr, usage_type, usage_id);
if (!(event = virObjectEventNew(virSecretEventValueChangedClass,
virSecretEventDispatchDefaultFunc,
VIR_SECRET_EVENT_ID_VALUE_CHANGED,
usage_type, usage_id, uuid, uuidstr)))
return NULL;
return (virObjectEventPtr)event;
}