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list: Add helpers to list network objects

Browse Source 
src/conf/network_conf.c: Add virNetworkMatch to filter the networks;
and virNetworkList to iterate over all the networks with the filter.

src/conf/network_conf.h: Declare virNetworkList and define the macros
for filters.

src/libvirt_private.syms: Export virNetworkList.
This commit is contained in:
Osier Yang 2012-09-04 23:55:17 +08:00
parent eff8a8dbb1
commit d3c6cabbac
3 changed files with 114 additions and 0 deletions
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91
src/conf/network_conf.c
View File

@ -2056,3 +2056,94 @@ void virNetworkObjUnlock(virNetworkObjPtr obj)
{
virMutexUnlock(&obj->lock);
}
#define MATCH(FLAG) (flags & (FLAG))
static bool
virNetworkMatch (virNetworkObjPtr netobj,
unsigned int flags)
{
/* filter by active state */
if (MATCH(VIR_CONNECT_LIST_NETWORKS_FILTERS_ACTIVE) &&
!((MATCH(VIR_CONNECT_LIST_NETWORKS_ACTIVE) &&
virNetworkObjIsActive(netobj)) ||
(MATCH(VIR_CONNECT_LIST_NETWORKS_INACTIVE) &&
!virNetworkObjIsActive(netobj))))
return false;
/* filter by persistence */
if (MATCH(VIR_CONNECT_LIST_NETWORKS_FILTERS_PERSISTENT) &&
!((MATCH(VIR_CONNECT_LIST_NETWORKS_PERSISTENT) &&
netobj->persistent) ||
(MATCH(VIR_CONNECT_LIST_NETWORKS_TRANSIENT) &&
!netobj->persistent)))
return false;
/* filter by autostart option */
if (MATCH(VIR_CONNECT_LIST_NETWORKS_FILTERS_AUTOSTART) &&
!((MATCH(VIR_CONNECT_LIST_NETWORKS_AUTOSTART) &&
netobj->autostart) ||
(MATCH(VIR_CONNECT_LIST_NETWORKS_NO_AUTOSTART) &&
!netobj->autostart)))
return false;
return true;
}
#undef MATCH
int
virNetworkList(virConnectPtr conn,
virNetworkObjList netobjs,
virNetworkPtr **nets,
unsigned int flags)
{
virNetworkPtr *tmp_nets = NULL;
virNetworkPtr net = NULL;
int nnets = 0;
int ret = -1;
int i;
if (nets) {
if (VIR_ALLOC_N(tmp_nets, netobjs.count + 1) < 0) {
virReportOOMError();
goto cleanup;
}
}
for (i = 0; i < netobjs.count; i++) {
virNetworkObjPtr netobj = netobjs.objs[i];
virNetworkObjLock(netobj);
if (virNetworkMatch(netobj, flags)) {
if (nets) {
if (!(net = virGetNetwork(conn,
netobj->def->name,
netobj->def->uuid))) {
virNetworkObjUnlock(netobj);
goto cleanup;
}
tmp_nets[nnets] = net;
}
nnets++;
}
virNetworkObjUnlock(netobj);
}
if (tmp_nets) {
/* trim the array to the final size */
ignore_value(VIR_REALLOC_N(tmp_nets, nnets + 1));
*nets = tmp_nets;
tmp_nets = NULL;
}
ret = nnets;
cleanup:
if (tmp_nets) {
for (i = 0; i < nnets; i++) {
if (tmp_nets[i])
virNetworkFree(tmp_nets[i]);
}
}
VIR_FREE(tmp_nets);
return ret;
}

22
src/conf/network_conf.h
View File

@ -321,4 +321,26 @@ void virNetworkObjUnlock(virNetworkObjPtr obj);
VIR_ENUM_DECL(virNetworkForward)
# define VIR_CONNECT_LIST_NETWORKS_FILTERS_ACTIVE \
(VIR_CONNECT_LIST_NETWORKS_ACTIVE | \
VIR_CONNECT_LIST_NETWORKS_INACTIVE)
# define VIR_CONNECT_LIST_NETWORKS_FILTERS_PERSISTENT \
(VIR_CONNECT_LIST_NETWORKS_PERSISTENT | \
VIR_CONNECT_LIST_NETWORKS_TRANSIENT)
# define VIR_CONNECT_LIST_NETWORKS_FILTERS_AUTOSTART \
(VIR_CONNECT_LIST_NETWORKS_AUTOSTART | \
VIR_CONNECT_LIST_NETWORKS_NO_AUTOSTART)
# define VIR_CONNECT_LIST_NETWORKS_FILTERS_ALL \
(VIR_CONNECT_LIST_NETWORKS_FILTERS_ACTIVE | \
VIR_CONNECT_LIST_NETWORKS_FILTERS_PERSISTENT | \
VIR_CONNECT_LIST_NETWORKS_FILTERS_AUTOSTART)
int virNetworkList(virConnectPtr conn,
virNetworkObjList netobjs,
virNetworkPtr **nets,
unsigned int flags);
#endif /* __NETWORK_CONF_H__ */

1
src/libvirt_private.syms
View File

@ -837,6 +837,7 @@ virNetworkFindByName;
virNetworkFindByUUID;
virNetworkIpDefNetmask;
virNetworkIpDefPrefix;
virNetworkList;
virNetworkLoadAllConfigs;
virNetworkObjIsDuplicate;
virNetworkObjListFree;