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d4c71c6725
To avoid bugs with mixing of g_object_(ref|unref) vs virObject(Ref|Unref), we want every virObject to be a GObject. Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
151 lines
3.6 KiB
C
151 lines
3.6 KiB
C
/*
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* virobject.h: libvirt reference counted object
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*
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* Copyright (C) 2012-2014 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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#pragma once
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#include "internal.h"
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#include "virthread.h"
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#include <glib-object.h>
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typedef struct _virClass virClass;
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typedef virClass *virClassPtr;
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typedef struct _virObject virObject;
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typedef virObject *virObjectPtr;
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typedef struct _virObjectLockable virObjectLockable;
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typedef virObjectLockable *virObjectLockablePtr;
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typedef struct _virObjectRWLockable virObjectRWLockable;
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typedef virObjectRWLockable *virObjectRWLockablePtr;
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typedef void (*virObjectDisposeCallback)(void *obj);
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#define VIR_TYPE_OBJECT vir_object_get_type()
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G_DECLARE_DERIVABLE_TYPE(virObject, vir_object, VIR, OBJECT, GObject);
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struct _virObjectClass {
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GObjectClass parent;
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};
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struct _virObjectLockable {
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virObject parent;
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virMutex lock;
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};
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struct _virObjectRWLockable {
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virObject parent;
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virRWLock lock;
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};
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virClassPtr virClassForObject(void);
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virClassPtr virClassForObjectLockable(void);
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virClassPtr virClassForObjectRWLockable(void);
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#ifndef VIR_PARENT_REQUIRED
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# define VIR_PARENT_REQUIRED ATTRIBUTE_NONNULL(1)
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#endif
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/* Assign the class description nameClass to represent struct @name
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* (which must have an object-based 'parent' member at offset 0), and
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* with parent class @prnt. nameDispose must exist as either a
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* function or as a macro defined to NULL.
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*/
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#define VIR_CLASS_NEW(name, prnt) \
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(G_STATIC_ASSERT_EXPR(offsetof(name, parent) == 0), \
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(name##Class = virClassNew(prnt, #name, sizeof(name),\
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sizeof(((name *)NULL)->parent), \
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name##Dispose)))
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virClassPtr
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virClassNew(virClassPtr parent,
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const char *name,
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size_t objectSize,
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size_t parentSize,
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virObjectDisposeCallback dispose)
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VIR_PARENT_REQUIRED ATTRIBUTE_NONNULL(2);
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const char *
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virClassName(virClassPtr klass)
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ATTRIBUTE_NONNULL(1);
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bool
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virClassIsDerivedFrom(virClassPtr klass,
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virClassPtr parent)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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void *
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virObjectNew(virClassPtr klass)
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ATTRIBUTE_NONNULL(1);
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void
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virObjectUnref(void *obj);
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void *
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virObjectRef(void *obj);
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bool
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virObjectIsClass(void *obj,
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virClassPtr klass)
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ATTRIBUTE_NONNULL(2);
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void
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virObjectFreeCallback(void *opaque);
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void
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virObjectFreeHashData(void *opaque);
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void *
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virObjectLockableNew(virClassPtr klass)
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ATTRIBUTE_NONNULL(1);
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void *
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virObjectRWLockableNew(virClassPtr klass)
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ATTRIBUTE_NONNULL(1);
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void
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virObjectLock(void *lockableobj)
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ATTRIBUTE_NONNULL(1);
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void
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virObjectRWLockRead(void *lockableobj)
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ATTRIBUTE_NONNULL(1);
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void
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virObjectRWLockWrite(void *lockableobj)
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ATTRIBUTE_NONNULL(1);
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void
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virObjectUnlock(void *lockableobj)
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ATTRIBUTE_NONNULL(1);
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void
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virObjectRWUnlock(void *lockableobj)
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ATTRIBUTE_NONNULL(1);
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void
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virObjectListFree(void *list);
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void
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virObjectListFreeCount(void *list,
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size_t count);
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