Now that we have a bit more control, let's convert our object into a lockable object and let that magic handle the create and lock/unlock. This commit also introduces virInterfaceObjEndAPI in order to handle the lock unlock and object unref in one call for consumers returning a NULL obj upon return. This removes the need for virInterfaceObj{Lock|Unlock} external API's. Signed-off-by: John Ferlan <jferlan@xxxxxxxxxx> --- po/POTFILES.in | 1 - src/conf/virinterfaceobj.c | 105 ++++++++++++++++++++++++--------------------- src/conf/virinterfaceobj.h | 9 ++-- src/libvirt_private.syms | 3 +- src/test/test_driver.c | 15 +++---- 5 files changed, 68 insertions(+), 65 deletions(-) diff --git a/po/POTFILES.in b/po/POTFILES.in index 142b4d3..923d647 100644 --- a/po/POTFILES.in +++ b/po/POTFILES.in @@ -44,7 +44,6 @@ src/conf/storage_adapter_conf.c src/conf/storage_conf.c src/conf/virchrdev.c src/conf/virdomainobjlist.c -src/conf/virinterfaceobj.c src/conf/virnetworkobj.c src/conf/virnodedeviceobj.c src/conf/virnwfilterobj.c diff --git a/src/conf/virinterfaceobj.c b/src/conf/virinterfaceobj.c index 1e3f25c..51c3c82 100644 --- a/src/conf/virinterfaceobj.c +++ b/src/conf/virinterfaceobj.c @@ -33,7 +33,7 @@ VIR_LOG_INIT("conf.virinterfaceobj"); struct _virInterfaceObj { - virMutex lock; + virObjectLockable parent; bool active; /* true if interface is active (up) */ virInterfaceDefPtr def; /* The interface definition */ @@ -46,50 +46,60 @@ struct _virInterfaceObjList { /* virInterfaceObj manipulation */ -static virInterfaceObjPtr -virInterfaceObjNew(void) -{ - virInterfaceObjPtr obj; +static virClassPtr virInterfaceObjClass; +static void virInterfaceObjDispose(void *obj); - if (VIR_ALLOC(obj) < 0) - return NULL; +static int +virInterfaceObjOnceInit(void) +{ + if (!(virInterfaceObjClass = virClassNew(virClassForObjectLockable(), + "virInterfaceObj", + sizeof(virInterfaceObj), + virInterfaceObjDispose))) + return -1; - if (virMutexInit(&obj->lock) < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, - "%s", _("cannot initialize mutex")); - VIR_FREE(obj); - return NULL; - } + return 0; +} - virInterfaceObjLock(obj); - return obj; -} +VIR_ONCE_GLOBAL_INIT(virInterfaceObj) -void -virInterfaceObjLock(virInterfaceObjPtr obj) +static void +virInterfaceObjDispose(void *opaque) { - virMutexLock(&obj->lock); + virInterfaceObjPtr obj = opaque; + + virInterfaceDefFree(obj->def); } -void -virInterfaceObjUnlock(virInterfaceObjPtr obj) +static virInterfaceObjPtr +virInterfaceObjNew(void) { - virMutexUnlock(&obj->lock); + virInterfaceObjPtr obj; + + if (virInterfaceObjInitialize() < 0) + return NULL; + + if (!(obj = virObjectLockableNew(virInterfaceObjClass))) + return NULL; + + virObjectLock(obj); + + return obj; } void -virInterfaceObjFree(virInterfaceObjPtr obj) +virInterfaceObjEndAPI(virInterfaceObjPtr *obj) { - if (!obj) + if (!*obj) return; - virInterfaceDefFree(obj->def); - virMutexDestroy(&obj->lock); - VIR_FREE(obj); + virObjectUnlock(*obj); + virObjectUnref(*obj); + *obj = NULL; } @@ -140,18 +150,18 @@ virInterfaceObjListFindByMACString(virInterfaceObjListPtr interfaces, virInterfaceObjPtr obj = interfaces->objs[i]; virInterfaceDefPtr def; - virInterfaceObjLock(obj); + virObjectLock(obj); def = obj->def; if (STRCASEEQ(def->mac, mac)) { if (matchct < maxmatches) { if (VIR_STRDUP(matches[matchct], def->name) < 0) { - virInterfaceObjUnlock(obj); + virObjectUnlock(obj); goto error; } matchct++; } } - virInterfaceObjUnlock(obj); + virObjectUnlock(obj); } return matchct; @@ -173,11 +183,11 @@ virInterfaceObjListFindByName(virInterfaceObjListPtr interfaces, virInterfaceObjPtr obj = interfaces->objs[i]; virInterfaceDefPtr def; - virInterfaceObjLock(obj); + virObjectLock(obj); def = obj->def; if (STREQ(def->name, name)) - return obj; - virInterfaceObjUnlock(obj); + return virObjectRef(obj); + virObjectUnlock(obj); } return NULL; @@ -190,7 +200,7 @@ virInterfaceObjListFree(virInterfaceObjListPtr interfaces) size_t i; for (i = 0; i < interfaces->count; i++) - virInterfaceObjFree(interfaces->objs[i]); + virObjectUnref(interfaces->objs[i]); VIR_FREE(interfaces->objs); VIR_FREE(interfaces); } @@ -227,7 +237,7 @@ virInterfaceObjListClone(virInterfaceObjListPtr interfaces) VIR_FREE(xml); if (!(obj = virInterfaceObjListAssignDef(dest, backup))) goto error; - virInterfaceObjUnlock(obj); /* locked by virInterfaceObjListAssignDef */ + virInterfaceObjEndAPI(&obj); } return dest; @@ -256,13 +266,12 @@ virInterfaceObjListAssignDef(virInterfaceObjListPtr interfaces, if (VIR_APPEND_ELEMENT_COPY(interfaces->objs, interfaces->count, obj) < 0) { - virInterfaceObjUnlock(obj); - virInterfaceObjFree(obj); + virInterfaceObjEndAPI(&obj); return NULL; } obj->def = def; - return obj; + return virObjectRef(obj); } @@ -273,17 +282,17 @@ virInterfaceObjListRemove(virInterfaceObjListPtr interfaces, { size_t i; - virInterfaceObjUnlock(obj); + virObjectUnlock(obj); for (i = 0; i < interfaces->count; i++) { - virInterfaceObjLock(interfaces->objs[i]); + virObjectLock(interfaces->objs[i]); if (interfaces->objs[i] == obj) { - virInterfaceObjUnlock(interfaces->objs[i]); - virInterfaceObjFree(interfaces->objs[i]); + virObjectUnlock(interfaces->objs[i]); + virObjectUnref(interfaces->objs[i]); VIR_DELETE_ELEMENT(interfaces->objs, i, interfaces->count); break; } - virInterfaceObjUnlock(interfaces->objs[i]); + virObjectUnlock(interfaces->objs[i]); } } @@ -297,10 +306,10 @@ virInterfaceObjListNumOfInterfaces(virInterfaceObjListPtr interfaces, for (i = 0; (i < interfaces->count); i++) { virInterfaceObjPtr obj = interfaces->objs[i]; - virInterfaceObjLock(obj); + virObjectLock(obj); if (wantActive == virInterfaceObjIsActive(obj)) ninterfaces++; - virInterfaceObjUnlock(obj); + virObjectUnlock(obj); } return ninterfaces; @@ -320,16 +329,16 @@ virInterfaceObjListGetNames(virInterfaceObjListPtr interfaces, virInterfaceObjPtr obj = interfaces->objs[i]; virInterfaceDefPtr def; - virInterfaceObjLock(obj); + virObjectLock(obj); def = obj->def; if (wantActive == virInterfaceObjIsActive(obj)) { if (VIR_STRDUP(names[nnames], def->name) < 0) { - virInterfaceObjUnlock(obj); + virObjectUnlock(obj); goto failure; } nnames++; } - virInterfaceObjUnlock(obj); + virObjectUnlock(obj); } return nnames; diff --git a/src/conf/virinterfaceobj.h b/src/conf/virinterfaceobj.h index 3934e63..2b9e1b2 100644 --- a/src/conf/virinterfaceobj.h +++ b/src/conf/virinterfaceobj.h @@ -28,6 +28,9 @@ typedef virInterfaceObj *virInterfaceObjPtr; typedef struct _virInterfaceObjList virInterfaceObjList; typedef virInterfaceObjList *virInterfaceObjListPtr; +void +virInterfaceObjEndAPI(virInterfaceObjPtr *obj); + virInterfaceDefPtr virInterfaceObjGetDef(virInterfaceObjPtr obj); @@ -68,12 +71,6 @@ void virInterfaceObjListRemove(virInterfaceObjListPtr interfaces, virInterfaceObjPtr obj); -void -virInterfaceObjLock(virInterfaceObjPtr obj); - -void -virInterfaceObjUnlock(virInterfaceObjPtr obj); - typedef bool (*virInterfaceObjListFilter)(virConnectPtr conn, virInterfaceDefPtr def); diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 9be50cb..5d6cb5e 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -910,6 +910,7 @@ virDomainObjListRename; # conf/virinterfaceobj.h +virInterfaceObjEndAPI; virInterfaceObjGetDef; virInterfaceObjIsActive; virInterfaceObjListAssignDef; @@ -921,9 +922,7 @@ virInterfaceObjListGetNames; virInterfaceObjListNew; virInterfaceObjListNumOfInterfaces; virInterfaceObjListRemove; -virInterfaceObjLock; virInterfaceObjSetActive; -virInterfaceObjUnlock; # conf/virnetworkobj.h diff --git a/src/test/test_driver.c b/src/test/test_driver.c index 511d65f..9a1c8a5 100644 --- a/src/test/test_driver.c +++ b/src/test/test_driver.c @@ -1027,7 +1027,7 @@ testParseInterfaces(testDriverPtr privconn, } virInterfaceObjSetActive(obj, true); - virInterfaceObjUnlock(obj); + virInterfaceObjEndAPI(&obj); } ret = 0; @@ -3718,7 +3718,7 @@ testInterfaceLookupByName(virConnectPtr conn, ret = virGetInterface(conn, def->name, def->mac); - virInterfaceObjUnlock(obj); + virInterfaceObjEndAPI(&obj); return ret; } @@ -3769,7 +3769,7 @@ testInterfaceIsActive(virInterfacePtr iface) ret = virInterfaceObjIsActive(obj); - virInterfaceObjUnlock(obj); + virInterfaceObjEndAPI(&obj); return ret; } @@ -3881,7 +3881,7 @@ testInterfaceGetXMLDesc(virInterfacePtr iface, ret = virInterfaceDefFormat(def); - virInterfaceObjUnlock(obj); + virInterfaceObjEndAPI(&obj); return ret; } @@ -3912,8 +3912,7 @@ testInterfaceDefineXML(virConnectPtr conn, cleanup: virInterfaceDefFree(def); - if (obj) - virInterfaceObjUnlock(obj); + virInterfaceObjEndAPI(&obj); testDriverUnlock(privconn); return ret; } @@ -3956,7 +3955,7 @@ testInterfaceCreate(virInterfacePtr iface, ret = 0; cleanup: - virInterfaceObjUnlock(obj); + virInterfaceObjEndAPI(&obj); return ret; } @@ -3983,7 +3982,7 @@ testInterfaceDestroy(virInterfacePtr iface, ret = 0; cleanup: - virInterfaceObjUnlock(obj); + virInterfaceObjEndAPI(&obj); return ret; } -- 2.9.4 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list