PoolFilter_t
ZpoolList::ZpoolList(PoolFilter_t *filter, void * filterArg)
ZpoolList(PoolFilter_t *filter = ZpoolAll, void *filterArg = NULL);
PoolFilter_t *m_filter;
static PoolFilter_t ZpoolAll;
static PoolFilter_t ZpoolByGUID;
static PoolFilter_t ZpoolByName;