[libvirt] [PATCH 02/15] nwfilter: Use virNWFilterDefPtr rather than deref virNWFilterObjPtr
John Ferlan
jferlan at redhat.com
Mon Apr 24 19:18:31 UTC 2017
Rather than dereferencing obj->def->XXX or nwfilters->objs[i]->X
create local virNWFilterObjPtr and virNWFilterDefPtr variables.
Future adjustments will be privatizing the object more, so this just
prepares the code for that reality.
Signed-off-by: John Ferlan <jferlan at redhat.com>
---
src/conf/virnwfilterobj.c | 80 +++++++++++++++++++++++++++---------------
src/nwfilter/nwfilter_driver.c | 33 ++++++++++-------
2 files changed, 72 insertions(+), 41 deletions(-)
diff --git a/src/conf/virnwfilterobj.c b/src/conf/virnwfilterobj.c
index cb697f9..3c6bdbb 100644
--- a/src/conf/virnwfilterobj.c
+++ b/src/conf/virnwfilterobj.c
@@ -37,11 +37,16 @@ VIR_LOG_INIT("conf.virnwfilterobj");
void
virNWFilterObjFree(virNWFilterObjPtr obj)
{
+ virNWFilterDefPtr def;
+ virNWFilterDefPtr newDef;
+
if (!obj)
return;
+ def = obj->def;
+ newDef = obj->newDef;
- virNWFilterDefFree(obj->def);
- virNWFilterDefFree(obj->newDef);
+ virNWFilterDefFree(def);
+ virNWFilterDefFree(newDef);
virMutexDestroy(&obj->lock);
@@ -87,12 +92,16 @@ virNWFilterObjFindByUUID(virNWFilterObjListPtr nwfilters,
const unsigned char *uuid)
{
size_t i;
+ virNWFilterObjPtr obj;
+ virNWFilterDefPtr def;
for (i = 0; i < nwfilters->count; i++) {
- virNWFilterObjLock(nwfilters->objs[i]);
- if (!memcmp(nwfilters->objs[i]->def->uuid, uuid, VIR_UUID_BUFLEN))
- return nwfilters->objs[i];
- virNWFilterObjUnlock(nwfilters->objs[i]);
+ obj = nwfilters->objs[i];
+ virNWFilterObjLock(obj);
+ def = obj->def;
+ if (!memcmp(def->uuid, uuid, VIR_UUID_BUFLEN))
+ return obj;
+ virNWFilterObjUnlock(obj);
}
return NULL;
@@ -104,12 +113,16 @@ virNWFilterObjFindByName(virNWFilterObjListPtr nwfilters,
const char *name)
{
size_t i;
+ virNWFilterObjPtr obj;
+ virNWFilterDefPtr def;
for (i = 0; i < nwfilters->count; i++) {
- virNWFilterObjLock(nwfilters->objs[i]);
- if (STREQ_NULLABLE(nwfilters->objs[i]->def->name, name))
- return nwfilters->objs[i];
- virNWFilterObjUnlock(nwfilters->objs[i]);
+ obj = nwfilters->objs[i];
+ virNWFilterObjLock(obj);
+ def = obj->def;
+ if (STREQ_NULLABLE(def->name, name))
+ return obj;
+ virNWFilterObjUnlock(obj);
}
return NULL;
@@ -125,6 +138,7 @@ _virNWFilterObjDefLoopDetect(virNWFilterObjListPtr nwfilters,
size_t i;
virNWFilterEntryPtr entry;
virNWFilterObjPtr obj;
+ virNWFilterDefPtr objdef;
if (!def)
return 0;
@@ -141,9 +155,9 @@ _virNWFilterObjDefLoopDetect(virNWFilterObjListPtr nwfilters,
obj = virNWFilterObjFindByName(nwfilters,
entry->include->filterref);
if (obj) {
- rc = _virNWFilterObjDefLoopDetect(nwfilters,
- obj->def, filtername);
-
+ objdef = obj->def;
+ rc = _virNWFilterObjDefLoopDetect(nwfilters, objdef,
+ filtername);
virNWFilterObjUnlock(obj);
if (rc < 0)
break;
@@ -226,24 +240,26 @@ virNWFilterObjAssignDef(virNWFilterObjListPtr nwfilters,
virNWFilterDefPtr def)
{
virNWFilterObjPtr obj;
+ virNWFilterDefPtr objdef;
- obj = virNWFilterObjFindByUUID(nwfilters, def->uuid);
+ if ((obj = virNWFilterObjFindByUUID(nwfilters, def->uuid))) {
+ objdef = obj->def;
- if (obj) {
- if (STRNEQ(def->name, obj->def->name)) {
+ if (STRNEQ(def->name, objdef->name)) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("filter with same UUID but different name "
"('%s') already exists"),
- obj->def->name);
+ objdef->name);
virNWFilterObjUnlock(obj);
return NULL;
}
virNWFilterObjUnlock(obj);
} else {
- obj = virNWFilterObjFindByName(nwfilters, def->name);
- if (obj) {
+ if ((obj = virNWFilterObjFindByName(nwfilters, def->name))) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
- virUUIDFormat(obj->def->uuid, uuidstr);
+
+ objdef = obj->def;
+ virUUIDFormat(objdef->uuid, uuidstr);
virReportError(VIR_ERR_OPERATION_FAILED,
_("filter '%s' already exists with uuid %s"),
def->name, uuidstr);
@@ -261,8 +277,9 @@ virNWFilterObjAssignDef(virNWFilterObjListPtr nwfilters,
if ((obj = virNWFilterObjFindByName(nwfilters, def->name))) {
- if (virNWFilterDefEqual(def, obj->def, false)) {
- virNWFilterDefFree(obj->def);
+ objdef = obj->def;
+ if (virNWFilterDefEqual(def, objdef, false)) {
+ virNWFilterDefFree(objdef);
obj->def = def;
return obj;
}
@@ -275,7 +292,7 @@ virNWFilterObjAssignDef(virNWFilterObjListPtr nwfilters,
return NULL;
}
- virNWFilterDefFree(obj->def);
+ virNWFilterDefFree(objdef);
obj->def = def;
obj->newDef = NULL;
return obj;
@@ -312,11 +329,13 @@ virNWFilterObjNumOfNWFilters(virNWFilterObjListPtr nwfilters,
{
size_t i;
int nfilters = 0;
+ virNWFilterDefPtr def;
for (i = 0; i < nwfilters->count; i++) {
virNWFilterObjPtr obj = nwfilters->objs[i];
virNWFilterObjLock(obj);
- if (!aclfilter || aclfilter(conn, obj->def))
+ def = obj->def;
+ if (!aclfilter || aclfilter(conn, def))
nfilters++;
virNWFilterObjUnlock(obj);
}
@@ -334,12 +353,14 @@ virNWFilterObjGetNames(virNWFilterObjListPtr nwfilters,
{
int nnames = 0;
size_t i;
+ virNWFilterDefPtr def;
for (i = 0; i < nwfilters->count && nnames < maxnames; i++) {
virNWFilterObjPtr obj = nwfilters->objs[i];
virNWFilterObjLock(obj);
- if (!aclfilter || aclfilter(conn, obj->def)) {
- if (VIR_STRDUP(names[nnames], obj->def->name) < 0) {
+ def = obj->def;
+ if (!aclfilter || aclfilter(conn, def)) {
+ if (VIR_STRDUP(names[nnames], def->name) < 0) {
virNWFilterObjUnlock(obj);
goto failure;
}
@@ -368,6 +389,7 @@ virNWFilterObjListExport(virConnectPtr conn,
int nfilters = 0;
virNWFilterPtr filter = NULL;
virNWFilterObjPtr obj = NULL;
+ virNWFilterDefPtr def;
size_t i;
int ret = -1;
@@ -382,9 +404,9 @@ virNWFilterObjListExport(virConnectPtr conn,
for (i = 0; i < nwfilters->count; i++) {
obj = nwfilters->objs[i];
virNWFilterObjLock(obj);
- if (!aclfilter || aclfilter(conn, obj->def)) {
- if (!(filter = virGetNWFilter(conn, obj->def->name,
- obj->def->uuid))) {
+ def = obj->def;
+ if (!aclfilter || aclfilter(conn, def)) {
+ if (!(filter = virGetNWFilter(conn, def->name, def->uuid))) {
virNWFilterObjUnlock(obj);
goto cleanup;
}
diff --git a/src/nwfilter/nwfilter_driver.c b/src/nwfilter/nwfilter_driver.c
index 72b9b8e..7e88a40 100644
--- a/src/nwfilter/nwfilter_driver.c
+++ b/src/nwfilter/nwfilter_driver.c
@@ -358,6 +358,7 @@ nwfilterLookupByUUID(virConnectPtr conn,
const unsigned char *uuid)
{
virNWFilterObjPtr obj;
+ virNWFilterDefPtr def;
virNWFilterPtr ret = NULL;
nwfilterDriverLock();
@@ -369,11 +370,12 @@ nwfilterLookupByUUID(virConnectPtr conn,
"%s", _("no nwfilter with matching uuid"));
goto cleanup;
}
+ def = obj->def;
- if (virNWFilterLookupByUUIDEnsureACL(conn, obj->def) < 0)
+ if (virNWFilterLookupByUUIDEnsureACL(conn, def) < 0)
goto cleanup;
- ret = virGetNWFilter(conn, obj->def->name, obj->def->uuid);
+ ret = virGetNWFilter(conn, def->name, def->uuid);
cleanup:
if (obj)
@@ -387,6 +389,7 @@ nwfilterLookupByName(virConnectPtr conn,
const char *name)
{
virNWFilterObjPtr obj;
+ virNWFilterDefPtr def;
virNWFilterPtr ret = NULL;
nwfilterDriverLock();
@@ -398,11 +401,12 @@ nwfilterLookupByName(virConnectPtr conn,
_("no nwfilter with matching name '%s'"), name);
goto cleanup;
}
+ def = obj->def;
- if (virNWFilterLookupByNameEnsureACL(conn, obj->def) < 0)
+ if (virNWFilterLookupByNameEnsureACL(conn, def) < 0)
goto cleanup;
- ret = virGetNWFilter(conn, obj->def->name, obj->def->uuid);
+ ret = virGetNWFilter(conn, def->name, def->uuid);
cleanup:
if (obj)
@@ -467,6 +471,7 @@ nwfilterDefineXML(virConnectPtr conn,
{
virNWFilterDefPtr def;
virNWFilterObjPtr obj = NULL;
+ virNWFilterDefPtr objdef;
virNWFilterPtr ret = NULL;
if (!driver->privileged) {
@@ -487,15 +492,15 @@ nwfilterDefineXML(virConnectPtr conn,
if (!(obj = virNWFilterObjAssignDef(&driver->nwfilters, def)))
goto cleanup;
+ def = NULL;
+ objdef = obj->def;
- if (virNWFilterSaveDef(driver->configDir, def) < 0) {
+ if (virNWFilterSaveDef(driver->configDir, objdef) < 0) {
virNWFilterObjRemove(&driver->nwfilters, obj);
- def = NULL;
goto cleanup;
}
- def = NULL;
- ret = virGetNWFilter(conn, obj->def->name, obj->def->uuid);
+ ret = virGetNWFilter(conn, objdef->name, objdef->uuid);
cleanup:
virNWFilterDefFree(def);
@@ -513,6 +518,7 @@ static int
nwfilterUndefine(virNWFilterPtr nwfilter)
{
virNWFilterObjPtr obj;
+ virNWFilterDefPtr def;
int ret = -1;
nwfilterDriverLock();
@@ -525,8 +531,9 @@ nwfilterUndefine(virNWFilterPtr nwfilter)
"%s", _("no nwfilter with matching uuid"));
goto cleanup;
}
+ def = obj->def;
- if (virNWFilterUndefineEnsureACL(nwfilter->conn, obj->def) < 0)
+ if (virNWFilterUndefineEnsureACL(nwfilter->conn, def) < 0)
goto cleanup;
if (virNWFilterObjTestUnassignDef(obj) < 0) {
@@ -536,7 +543,7 @@ nwfilterUndefine(virNWFilterPtr nwfilter)
goto cleanup;
}
- if (virNWFilterDeleteDef(driver->configDir, obj->def) < 0)
+ if (virNWFilterDeleteDef(driver->configDir, def) < 0)
goto cleanup;
virNWFilterObjRemove(&driver->nwfilters, obj);
@@ -559,6 +566,7 @@ nwfilterGetXMLDesc(virNWFilterPtr nwfilter,
unsigned int flags)
{
virNWFilterObjPtr obj;
+ virNWFilterDefPtr def;
char *ret = NULL;
virCheckFlags(0, NULL);
@@ -572,11 +580,12 @@ nwfilterGetXMLDesc(virNWFilterPtr nwfilter,
"%s", _("no nwfilter with matching uuid"));
goto cleanup;
}
+ def = obj->def;
- if (virNWFilterGetXMLDescEnsureACL(nwfilter->conn, obj->def) < 0)
+ if (virNWFilterGetXMLDescEnsureACL(nwfilter->conn, def) < 0)
goto cleanup;
- ret = virNWFilterDefFormat(obj->def);
+ ret = virNWFilterDefFormat(def);
cleanup:
if (obj)
--
2.9.3
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