newspolyglot

type ArticleDirectDB interface {
	ArticleDirectStat(id []byte) bool
	ArticleDirectGet(id []byte, head, body bool) *ArticleObject
	ArticleDirectOverview(id []byte) *ArticleOverview
}

type ArticleGroupDB interface {
	ArticleGroupStat(group []byte, num int64, id_buf []byte) ([]byte, bool)
	ArticleGroupGet(group []byte, num int64, head, body bool, id_buf []byte) ([]byte, *ArticleObject)
	ArticleGroupOverview(group []byte, first, last int64, targ func(int64, *ArticleOverview))
	ArticleGroupMove(group []byte, i int64, backward bool, id_buf []byte) (ni int64, id []byte, ok bool)
	ArticleGroupList(group []byte, first, last int64, targ func(int64))
}

type ArticleObject struct {
	Head, Body []byte

	Bufs [2]*[]byte
}

type ArticleOverview struct {
	// This structure is fixed. It shall not change.
	Subject, From, Date, MsgId, Refs []byte
	Bytes, Lines                     int64
}

type ArticlePostingDB interface {
	ArticlePostingPost(headp *posting.HeadInfo, body []byte, ngs [][]byte, numbs []int64) (rejected bool, failed bool, err error)
	ArticlePostingCheckPost() (possible bool)
	ArticlePostingCheckPostId(id []byte) (wanted bool, possible bool)
}

type GroupHeadCache interface {
	// Filters the list "groups" removing those groups that
	// eighter not exist or they can't be posted to.
	GroupHeadFilter(groups [][]byte) ([][]byte, error)
}

type GroupHeadDB interface {
	GroupHeadInsert(groups [][]byte, buf []int64) ([]int64, error)
	GroupHeadRevert(groups [][]byte, nums []int64) error
}

type GroupRealtimeDB interface {
	GroupRealtimeQuery(group []byte) (number int64, low int64, high int64, ok bool)
	GroupRealtimeList(targ func(group []byte, high, low int64, status byte)) bool
}

type GroupStaticDB interface {
	GroupStaticList(targ func(group []byte, descr []byte)) bool
}