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list: Add helpers for listing storage pool objects

Browse Source 
src/conf/storage_conf.c: Add virStoragePoolMatch to filter the
pools; Add virStoragePoolList to iterate over the pool objects
with filter.

src/conf/storage_conf.h: Declare virStoragePoolMatch,
virStoragePoolList, and the macros for filters.

src/libvirt_private.syms: Export helper virStoragePoolList.
This commit is contained in:
Osier Yang 2012-09-04 23:16:25 +08:00
parent 075c754af0
commit 84208a4a8b
3 changed files with 152 additions and 0 deletions
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116
src/conf/storage_conf.c
View File

@ -1883,3 +1883,119 @@ void virStoragePoolObjUnlock(virStoragePoolObjPtr obj)
{
virMutexUnlock(&obj->lock);
}
#define MATCH(FLAG) (flags & (FLAG))
static bool
virStoragePoolMatch(virStoragePoolObjPtr poolobj,
unsigned int flags)
{
/* filter by active state */
if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ACTIVE) &&
!((MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE) &&
virStoragePoolObjIsActive(poolobj)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_INACTIVE) &&
!virStoragePoolObjIsActive(poolobj))))
return false;
/* filter by persistence */
if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_PERSISTENT) &&
!((MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_PERSISTENT) &&
poolobj->configFile) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_TRANSIENT) &&
!poolobj->configFile)))
return false;
/* filter by autostart option */
if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_AUTOSTART) &&
!((MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_AUTOSTART) &&
poolobj->autostart) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_NO_AUTOSTART) &&
!poolobj->autostart)))
return false;
/* filter by pool type */
if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_POOL_TYPE)) {
if (!((MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_DIR) &&
(poolobj->def->type == VIR_STORAGE_POOL_DIR)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FS) &&
(poolobj->def->type == VIR_STORAGE_POOL_FS)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_NETFS) &&
(poolobj->def->type == VIR_STORAGE_POOL_NETFS)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_LOGICAL) &&
(poolobj->def->type == VIR_STORAGE_POOL_LOGICAL)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_DISK) &&
(poolobj->def->type == VIR_STORAGE_POOL_DISK)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_ISCSI) &&
(poolobj->def->type == VIR_STORAGE_POOL_ISCSI)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_SCSI) &&
(poolobj->def->type == VIR_STORAGE_POOL_SCSI)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_MPATH) &&
(poolobj->def->type == VIR_STORAGE_POOL_MPATH)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_RBD) &&
(poolobj->def->type == VIR_STORAGE_POOL_RBD)) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_SHEEPDOG) &&
(poolobj->def->type == VIR_STORAGE_POOL_SHEEPDOG))))
return false;
}
return true;
}
#undef MATCH
int
virStoragePoolList(virConnectPtr conn,
virStoragePoolObjList poolobjs,
virStoragePoolPtr **pools,
unsigned int flags)
{
virStoragePoolPtr *tmp_pools = NULL;
virStoragePoolPtr pool = NULL;
int npools = 0;
int ret = -1;
int i;
if (pools) {
if (VIR_ALLOC_N(tmp_pools, poolobjs.count + 1) < 0) {
virReportOOMError();
goto cleanup;
}
}
for (i = 0; i < poolobjs.count; i++) {
virStoragePoolObjPtr poolobj = poolobjs.objs[i];
virStoragePoolObjLock(poolobj);
if (virStoragePoolMatch(poolobj, flags)) {
if (pools) {
if (!(pool = virGetStoragePool(conn,
poolobj->def->name,
poolobj->def->uuid))) {
virStoragePoolObjUnlock(poolobj);
goto cleanup;
}
tmp_pools[npools] = pool;
}
npools++;
}
virStoragePoolObjUnlock(poolobj);
}
if (tmp_pools) {
/* trim the array to the final size */
ignore_value(VIR_REALLOC_N(tmp_pools, npools + 1));
*pools = tmp_pools;
tmp_pools = NULL;
}
ret = npools;
cleanup:
if (tmp_pools) {
for (i = 0; i < npools; i++) {
if (tmp_pools[i])
virStoragePoolFree(tmp_pools[i]);
}
}
VIR_FREE(tmp_pools);
return ret;
}

35
src/conf/storage_conf.h
View File

@ -518,4 +518,39 @@ enum virStoragePartedFsType {
};
VIR_ENUM_DECL(virStoragePartedFsType)
# define VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ACTIVE \
(VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE | \
VIR_CONNECT_LIST_STORAGE_POOLS_INACTIVE)
# define VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_PERSISTENT \
(VIR_CONNECT_LIST_STORAGE_POOLS_PERSISTENT | \
VIR_CONNECT_LIST_STORAGE_POOLS_TRANSIENT)
# define VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_AUTOSTART \
(VIR_CONNECT_LIST_STORAGE_POOLS_AUTOSTART | \
VIR_CONNECT_LIST_STORAGE_POOLS_NO_AUTOSTART)
# define VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_POOL_TYPE \
(VIR_CONNECT_LIST_STORAGE_POOLS_DIR | \
VIR_CONNECT_LIST_STORAGE_POOLS_FS | \
VIR_CONNECT_LIST_STORAGE_POOLS_NETFS | \
VIR_CONNECT_LIST_STORAGE_POOLS_LOGICAL | \
VIR_CONNECT_LIST_STORAGE_POOLS_DISK | \
VIR_CONNECT_LIST_STORAGE_POOLS_ISCSI | \
VIR_CONNECT_LIST_STORAGE_POOLS_SCSI | \
VIR_CONNECT_LIST_STORAGE_POOLS_MPATH | \
VIR_CONNECT_LIST_STORAGE_POOLS_RBD | \
VIR_CONNECT_LIST_STORAGE_POOLS_SHEEPDOG)
# define VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ALL \
(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ACTIVE | \
VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_PERSISTENT | \
VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_AUTOSTART | \
VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_POOL_TYPE)
int virStoragePoolList(virConnectPtr conn,
virStoragePoolObjList poolobjs,
virStoragePoolPtr **pools,
unsigned int flags);
#endif /* __VIR_STORAGE_CONF_H__ */

1
src/libvirt_private.syms
View File

@ -1058,6 +1058,7 @@ virStoragePoolDefParseString;
virStoragePoolFormatDiskTypeToString;
virStoragePoolFormatFileSystemNetTypeToString;
virStoragePoolFormatFileSystemTypeToString;
virStoragePoolList;
virStoragePoolLoadAllConfigs;
virStoragePoolObjAssignDef;
virStoragePoolObjClearVols;