[PATCH v2 18/40] datatypes: convert virDomainSnapshot to GObject
Rafael Fonseca
r4f4rfs at gmail.com
Tue Apr 21 13:48:59 UTC 2020
Signed-off-by: Rafael Fonseca <r4f4rfs at gmail.com>
---
src/conf/virdomainsnapshotobjlist.c | 7 +--
src/datatypes.c | 68 ++++++++++++++++++++---------
src/datatypes.h | 12 +++--
src/libvirt-domain-snapshot.c | 7 ++-
src/libvirt_private.syms | 2 +-
src/qemu/qemu_driver.c | 3 +-
src/rpc/gendispatch.pl | 1 +
7 files changed, 64 insertions(+), 36 deletions(-)
diff --git a/src/conf/virdomainsnapshotobjlist.c b/src/conf/virdomainsnapshotobjlist.c
index 910b0714c7..54d1892dc4 100644
--- a/src/conf/virdomainsnapshotobjlist.c
+++ b/src/conf/virdomainsnapshotobjlist.c
@@ -285,10 +285,7 @@ virDomainListSnapshots(virDomainSnapshotObjListPtr snapshots,
for (i = 0; i < count; i++)
VIR_FREE(names[i]);
VIR_FREE(names);
- if (ret < 0 && list) {
- for (i = 0; i < count; i++)
- virObjectUnref(list[i]);
- VIR_FREE(list);
- }
+ if (ret < 0)
+ virGObjectListFreeCount(list, count);
return ret;
}
diff --git a/src/datatypes.c b/src/datatypes.c
index 8a044a2ab3..334d9d8638 100644
--- a/src/datatypes.c
+++ b/src/datatypes.c
@@ -36,7 +36,6 @@ VIR_LOG_INIT("datatypes");
virClassPtr virConnectClass;
virClassPtr virConnectCloseCallbackDataClass;
virClassPtr virDomainClass;
-virClassPtr virDomainSnapshotClass;
virClassPtr virInterfaceClass;
virClassPtr virNetworkClass;
virClassPtr virNetworkPortClass;
@@ -51,7 +50,6 @@ virClassPtr virStoragePoolClass;
static void virConnectDispose(void *obj);
static void virConnectCloseCallbackDataDispose(void *obj);
static void virDomainDispose(void *obj);
-static void virDomainSnapshotDispose(void *obj);
static void virInterfaceDispose(void *obj);
static void virNetworkDispose(void *obj);
static void virNetworkPortDispose(void *obj);
@@ -81,6 +79,24 @@ vir_domain_checkpoint_class_init(virDomainCheckpointClass *klass)
obj->finalize = virDomainCheckpointFinalize;
}
+G_DEFINE_TYPE(virDomainSnapshot, vir_domain_snapshot, G_TYPE_OBJECT);
+static void virDomainSnapshotDispose(GObject *obj);
+static void virDomainSnapshotFinalize(GObject *obj);
+
+static void
+vir_domain_snapshot_init(virDomainSnapshot *ds G_GNUC_UNUSED)
+{
+}
+
+static void
+vir_domain_snapshot_class_init(virDomainSnapshotClass *klass)
+{
+ GObjectClass *obj = G_OBJECT_CLASS(klass);
+
+ obj->dispose = virDomainSnapshotDispose;
+ obj->finalize = virDomainSnapshotFinalize;
+}
+
virClassPtr virAdmConnectClass;
virClassPtr virAdmConnectCloseCallbackDataClass;
@@ -135,7 +151,6 @@ virDataTypesOnceInit(void)
DECLARE_CLASS_LOCKABLE(virConnect);
DECLARE_CLASS_LOCKABLE(virConnectCloseCallbackData);
DECLARE_CLASS(virDomain);
- DECLARE_CLASS(virDomainSnapshot);
DECLARE_CLASS(virInterface);
DECLARE_CLASS(virNetwork);
DECLARE_CLASS(virNetworkPort);
@@ -1069,32 +1084,27 @@ virDomainCheckpointFinalize(GObject *obj)
* @name: pointer to the domain snapshot name
*
* Allocates a new domain snapshot object. When the object is no longer needed,
- * virObjectUnref() must be called in order to not leak data.
+ * g_object_unref() must be called in order to not leak data.
*
* Returns a pointer to the domain snapshot object, or NULL on error.
*/
virDomainSnapshotPtr
virGetDomainSnapshot(virDomainPtr domain, const char *name)
{
- virDomainSnapshotPtr ret = NULL;
+ g_autoptr(virDomainSnapshot) ret = NULL;
if (virDataTypesInitialize() < 0)
return NULL;
- virCheckDomainGoto(domain, error);
- virCheckNonNullArgGoto(name, error);
+ virCheckDomainReturn(domain, NULL);
+ virCheckNonNullArgReturn(name, NULL);
- if (!(ret = virObjectNew(virDomainSnapshotClass)))
- goto error;
+ ret = VIR_DOMAIN_SNAPSHOT(g_object_new(VIR_TYPE_DOMAIN_SNAPSHOT, NULL));
ret->name = g_strdup(name);
ret->domain = virObjectRef(domain);
- return ret;
-
- error:
- virObjectUnref(ret);
- return NULL;
+ return g_steal_pointer(&ret);
}
@@ -1102,20 +1112,36 @@ virGetDomainSnapshot(virDomainPtr domain, const char *name)
* virDomainSnapshotDispose:
* @obj: the domain snapshot to release
*
- * Unconditionally release all memory associated with a snapshot.
- * The snapshot object must not be used once this method returns.
+ * Unreferences the associated connection object, which may also be
+ * released if its ref count hits zero.
+ */
+static void
+virDomainSnapshotDispose(GObject *obj)
+{
+ virDomainSnapshotPtr snapshot = VIR_DOMAIN_SNAPSHOT(obj);
+
+ virObjectUnref(snapshot->domain);
+ snapshot->domain = NULL;
+
+ G_OBJECT_CLASS(vir_domain_snapshot_parent_class)->dispose(obj);
+}
+
+/**
+ * virDomainSnapshotFinalize:
+ * @obj: the domain snapshot to release
*
- * It will also unreference the associated connection object,
- * which may also be released if its ref count hits zero.
+ * Unconditionally releases all memory associated with a snapshot.
+ * The snapshot object must not be used once this method returns.
*/
static void
-virDomainSnapshotDispose(void *obj)
+virDomainSnapshotFinalize(GObject *obj)
{
- virDomainSnapshotPtr snapshot = obj;
+ virDomainSnapshotPtr snapshot = VIR_DOMAIN_SNAPSHOT(obj);
VIR_DEBUG("release snapshot %p %s", snapshot, snapshot->name);
VIR_FREE(snapshot->name);
- virObjectUnref(snapshot->domain);
+
+ G_OBJECT_CLASS(vir_domain_snapshot_parent_class)->finalize(obj);
}
diff --git a/src/datatypes.h b/src/datatypes.h
index e6817dc43d..9dfb18147e 100644
--- a/src/datatypes.h
+++ b/src/datatypes.h
@@ -32,7 +32,6 @@
extern virClassPtr virConnectClass;
extern virClassPtr virDomainClass;
-extern virClassPtr virDomainSnapshotClass;
extern virClassPtr virInterfaceClass;
extern virClassPtr virNetworkClass;
extern virClassPtr virNetworkPortClass;
@@ -51,6 +50,13 @@ G_DECLARE_FINAL_TYPE(virDomainCheckpoint,
DOMAIN_CHECKPOINT,
GObject);
+#define VIR_TYPE_DOMAIN_SNAPSHOT vir_domain_snapshot_get_type()
+G_DECLARE_FINAL_TYPE(virDomainSnapshot,
+ vir_domain_snapshot,
+ VIR,
+ DOMAIN_SNAPSHOT,
+ GObject);
+
extern virClassPtr virAdmConnectClass;
#define VIR_TYPE_ADM_SERVER vir_adm_server_get_type()
@@ -349,7 +355,7 @@ G_DECLARE_FINAL_TYPE(virAdmClient, vir_adm_client, VIR, ADM_CLIENT, GObject);
#define virCheckDomainSnapshotReturn(obj, retval) \
do { \
virDomainSnapshotPtr _snap = (obj); \
- if (!virObjectIsClass(_snap, virDomainSnapshotClass) || \
+ if (_snap == NULL || \
!virObjectIsClass(_snap->domain, virDomainClass) || \
!virObjectIsClass(_snap->domain->conn, virConnectClass)) { \
virReportErrorHelper(VIR_FROM_DOMAIN_SNAPSHOT, \
@@ -767,7 +773,7 @@ struct _virDomainCheckpoint {
* Internal structure associated with a domain snapshot
*/
struct _virDomainSnapshot {
- virObject parent;
+ GObject parent;
char *name;
virDomainPtr domain;
};
diff --git a/src/libvirt-domain-snapshot.c b/src/libvirt-domain-snapshot.c
index 33593e11e9..ce870de712 100644
--- a/src/libvirt-domain-snapshot.c
+++ b/src/libvirt-domain-snapshot.c
@@ -1080,14 +1080,13 @@ virDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
int
virDomainSnapshotRef(virDomainSnapshotPtr snapshot)
{
- VIR_DEBUG("snapshot=%p, refs=%d", snapshot,
- snapshot ? snapshot->parent.u.s.refs : 0);
+ VIR_DEBUG("snapshot=%p", snapshot);
virResetLastError();
virCheckDomainSnapshotReturn(snapshot, -1);
- virObjectRef(snapshot);
+ g_object_ref(snapshot);
return 0;
}
@@ -1110,6 +1109,6 @@ virDomainSnapshotFree(virDomainSnapshotPtr snapshot)
virCheckDomainSnapshotReturn(snapshot, -1);
- virObjectUnref(snapshot);
+ g_object_unref(snapshot);
return 0;
}
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index bfce1b0b8f..33d6d4950d 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1347,6 +1347,7 @@ virCPUx86FeatureFilterSelectMSR;
# datatypes.h
vir_domain_checkpoint_get_type;
+vir_domain_snapshot_get_type;
virConnectClass;
virConnectCloseCallbackDataCall;
virConnectCloseCallbackDataClass;
@@ -1354,7 +1355,6 @@ virConnectCloseCallbackDataGetCallback;
virConnectCloseCallbackDataRegister;
virConnectCloseCallbackDataUnregister;
virDomainClass;
-virDomainSnapshotClass;
virGetConnect;
virGetDomain;
virGetDomainCheckpoint;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 9b353c6f07..46851d063e 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -15846,8 +15846,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
cfg->snapshotDir) < 0) {
/* if writing of metadata fails, error out rather than trying
* to silently carry on without completing the snapshot */
- virObjectUnref(snapshot);
- snapshot = NULL;
+ g_clear_object(&snapshot);
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unable to save metadata for snapshot %s"),
snap->def->name);
diff --git a/src/rpc/gendispatch.pl b/src/rpc/gendispatch.pl
index c8fba3dc2b..bca3b33e80 100755
--- a/src/rpc/gendispatch.pl
+++ b/src/rpc/gendispatch.pl
@@ -197,6 +197,7 @@ my %gobject_impl = (
virAdmClient => 1,
virAdmServer => 1,
virDomainCheckpoint => 1,
+ virDomainSnapshot => 1,
);
sub use_gobject {
--
2.25.3
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