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09567144d6
I almost wrote a hash value free function that just called VIR_FREE, then realized I couldn't be the first person to do that. Sure enough, it was worth factoring into a common helper routine. * src/util/virhash.h (virHashValueFree): New function. * src/util/virhash.c (virHashValueFree): Implement it. * src/util/virobject.h (virObjectFreeHashData): New function. * src/libvirt_private.syms (virhash.h, virobject.h): Export them. * src/nwfilter/nwfilter_learnipaddr.c (virNWFilterLearnInit): Use common function. * src/qemu/qemu_capabilities.c (virQEMUCapsCacheNew): Likewise. * src/qemu/qemu_command.c (qemuDomainCCWAddressSetCreate): Likewise. * src/qemu/qemu_monitor.c (qemuMonitorGetBlockInfo): Likewise. * src/qemu/qemu_process.c (qemuProcessWaitForMonitor): Likewise. * src/util/virclosecallbacks.c (virCloseCallbacksNew): Likewise. * src/util/virkeyfile.c (virKeyFileParseGroup): Likewise. * tests/qemumonitorjsontest.c (testQemuMonitorJSONqemuMonitorJSONGetBlockInfo): Likewise. Signed-off-by: Eric Blake <eblake@redhat.com>
104 lines
2.9 KiB
C
104 lines
2.9 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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#ifndef __VIR_OBJECT_H__
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# define __VIR_OBJECT_H__
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# include "internal.h"
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# include "virthread.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 void (*virObjectDisposeCallback)(void *obj);
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/* Most code should not play with the contents of this struct; however,
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* the struct itself is public so that it can be embedded as the first
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* field of a subclassed object. */
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struct _virObject {
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/* Ensure correct alignment of this and all subclasses, even on
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* platforms where 'long long' or function pointers have stricter
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* requirements than 'void *'. */
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union {
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long long dummy_align1;
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void (*dummy_align2) (void);
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struct {
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unsigned int magic;
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int refs;
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} s;
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} u;
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virClassPtr klass;
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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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virClassPtr virClassForObject(void);
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virClassPtr virClassForObjectLockable(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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virClassPtr virClassNew(virClassPtr parent,
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const char *name,
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size_t objectSize,
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virObjectDisposeCallback dispose)
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VIR_PARENT_REQUIRED ATTRIBUTE_NONNULL(2);
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const char *virClassName(virClassPtr klass)
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ATTRIBUTE_NONNULL(1);
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bool virClassIsDerivedFrom(virClassPtr klass,
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virClassPtr parent)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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void *virObjectNew(virClassPtr klass)
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ATTRIBUTE_NONNULL(1);
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bool virObjectUnref(void *obj);
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void *virObjectRef(void *obj);
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bool virObjectIsClass(void *obj,
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virClassPtr klass)
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ATTRIBUTE_NONNULL(2);
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void virObjectFreeCallback(void *opaque);
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void virObjectFreeHashData(void *opaque, const void *name);
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void *virObjectLockableNew(virClassPtr klass)
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ATTRIBUTE_NONNULL(1);
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void virObjectLock(void *lockableobj)
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ATTRIBUTE_NONNULL(1);
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void virObjectUnlock(void *lockableobj)
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ATTRIBUTE_NONNULL(1);
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#endif /* __VIR_OBJECT_H */
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