messagedb

type AbstractBlob interface {
	IsDirect() bool
}

type ArticleLocation struct {
	Head AbstractBlob
	Body AbstractBlob
}

type ArticlePosting struct {
	Xover ArticleXover
	Redir *ArticleRedirect
	Head  AbstractBlob
	Body  AbstractBlob

	// Compression hints.
	HeadComp CompressionHint
	BodyComp CompressionHint
}

type ArticleRedirect struct {
	Group  []byte
	Number int64
}

type ArticleXover struct {
	Subject []byte
	From    []byte
	Date    []byte
	MsgId   []byte
	Refs    []byte
	Bytes   int64
	Lines   int64

	// This timestamp is used for purging old Entries.
	TimeStamp int64 // Timestamp (UNIX-Format).
}

type BlobDirect struct{ Content []byte }

type BlobLocation struct {
	Node   *uuid.UUID
	DayID  int
	Offset int64
	Length int64
}

type BlobLz4Compressed struct {
	UCLen      int
	Lz4Content []byte
}

type CompressionHint byte

type Dayfile struct {
	File *os.File
	// contains filtered or unexported fields
}

type DayfileCache struct {
	Folder string
	NodeID *uuid.UUID
	// contains filtered or unexported fields
}

type GrpArtDB struct {
	DB *bolt.DB
}

type IDayfileNode interface {
	GetDayfileNodeID() *uuid.UUID
	FreeDayfileStorage() int64
	AddDayfileBlob(dayid int, ch CompressionHint, b AbstractBlob) AbstractBlob
	ReadDayfileBlob(b AbstractBlob) AbstractBlob
}

type IGrpArtDB interface {
	PutArticle(group []byte, num int64, ap *ArticlePosting) (ok bool)
	GetArticle(group []byte, num int64, head, body bool) (headPtr, bodyPtr AbstractBlob, ok bool)
	GetXover(group []byte, first, last int64, max int) (result []XoverElement)
}

type IMsgidIndexDB interface {
	GetMessageLocation(messageID []byte) (articlePos *ArticleRedirect)
	UpdateMessageLocation(messageID []byte, articlePos *ArticleRedirect, timestamp int64) (ok bool)
}

type LruCache interface {
	Add(key, value interface{}) bool
	Contains(key interface{}) (ok bool)
	Get(key interface{}) (value interface{}, ok bool)
	Purge()
	Remove(key interface{}) bool
}

type LruCacheFactory func(e simplelru.EvictCallback) (LruCache, error)

type MsgidIndexDB struct {
	DB *bolt.DB
}

type XoverElement struct {
	Number int64
	Xover  ArticleXover
}