groupidx

type GroupIndex interface {
	// known from "github.com/maxymania/fastnntp-polyglot"
	GroupHeadInsert(groups [][]byte, buf []int64) ([]int64, error)
	GroupHeadRevert(groups [][]byte, nums []int64) error
	ArticleGroupStat(group []byte, num int64, id_buf []byte) ([]byte, bool)
	ArticleGroupMove(group []byte, i int64, backward bool, id_buf []byte) (ni int64, id []byte, ok bool)
	GroupRealtimeQuery(group []byte) (number int64, low int64, high int64, ok bool)

	// Newly introduced.
	AssignArticleToGroup(group []byte, num, exp uint64, id []byte) error
	AssignArticleToGroups(groups [][]byte, nums []int64, exp uint64, id []byte) error /* Bulk-version*/
	ListArticleGroupRaw(group []byte, first, last int64, targ func(int64, []byte))
}

type P_GIPrototype GroupIndex