Exemplo n.º 1
0
func (index *bunchRefCache) Add(id, ref int64) error {
	keyBuf := idToKeyBuf(index.getBunchId(id))

	data, err := index.db.Get(index.ro, keyBuf)
	if err != nil {
		return err
	}

	var idRefs []element.IdRefs
	if data != nil {
		idRefs = idRefsPool.get()
		defer idRefsPool.release(idRefs)
		idRefs = binary.UnmarshalIdRefsBunch2(data, idRefs)
	}

	idRefBunch := idRefBunch{index.getBunchId(id), idRefs}
	idRef := idRefBunch.getCreate(id)
	idRef.Add(ref)

	data = bytePool.get()
	defer bytePool.release(data)
	data = binary.MarshalIdRefsBunch2(idRefBunch.idRefs, data)

	return index.db.Put(index.wo, keyBuf, data)
}
Exemplo n.º 2
0
func (index *bunchRefCache) Delete(id int64) error {
	if index.linearImport {
		panic("programming error: delete not supported in linearImport mode")
	}

	keyBuf := idToKeyBuf(index.getBunchId(id))

	data, err := index.db.Get(index.ro, keyBuf)
	if err != nil {
		return err
	}

	if data != nil {
		idRefs := idRefsPool.get()
		defer idRefsPool.release(idRefs)
		idRefs = binary.UnmarshalIdRefsBunch2(data, idRefs)
		idRefBunch := idRefBunch{index.getBunchId(id), idRefs}
		idRef := idRefBunch.get(id)
		if idRef != nil {
			idRef.Refs = []int64{}
			data := bytePool.get()
			defer bytePool.release(data)
			data = binary.MarshalIdRefsBunch2(idRefs, data)
			return index.db.Put(index.wo, keyBuf, data)
		}
	}
	return nil
}
Exemplo n.º 3
0
func (index *bunchRefCache) Get(id int64) []int64 {
	if index.linearImport {
		panic("programming error: get not supported in linearImport mode")
	}
	keyBuf := idToKeyBuf(index.getBunchId(id))

	data, err := index.db.Get(index.ro, keyBuf)
	if err != nil {
		panic(err)
	}

	if data != nil {
		idRefs := idRefsPool.get()
		defer idRefsPool.release(idRefs)
		for _, idRef := range binary.UnmarshalIdRefsBunch2(data, idRefs) {
			if idRef.Id == id {
				return idRef.Refs
			}
		}
	}
	return nil
}
Exemplo n.º 4
0
// loadMergeMarshal loads an existing bunch, merges the IdRefs and
// marshals the result again.
func (index *bunchRefCache) loadMergeMarshal(keyBuf []byte, newBunch []element.IdRefs) []byte {
	data, err := index.db.Get(index.ro, keyBuf)
	if err != nil {
		panic(err)
	}

	var bunch []element.IdRefs

	if data != nil {
		bunch = idRefsPool.get()
		defer idRefsPool.release(bunch)
		bunch = binary.UnmarshalIdRefsBunch2(data, bunch)
	}

	if bunch == nil {
		bunch = newBunch
	} else {
		bunch = mergeBunch(bunch, newBunch)
	}

	data = bytePool.get()
	data = binary.MarshalIdRefsBunch2(bunch, data)
	return data
}