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Moved Block as type to common structures.

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This commit is contained in:
Sascha L. Teichmann 2014-09-07 15:57:25 +02:00
parent 70e8d5a548
commit d75fe4f102
5 changed files with 16 additions and 15 deletions
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7
common/block.go Normal file
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@ -0,0 +1,7 @@
package common
// Block data from Minetest database.
type Block struct {
Coord Coord
Data []byte
}

10
interleaver/interfaces.go
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@ -14,24 +14,18 @@ import (
var ErrNoMoreBlocks = errors.New("No more blocks.")
type (
// Block data from Minetest database.
Block struct {
Coord common.Coord
Data []byte
}
// BlockProducer is used to over a existing Minetest database
// and return its content block by block.
BlockProducer interface {
// error is ErrNoMoreBlocks if it run out of blocks.
Next(*Block) error
Next(*common.Block) error
// Closes the open database connections.
Close() error
}
// BlockConsumer is used to store blocks in a new Minetest database.
BlockConsumer interface {
Consume(*Block) error
Consume(*common.Block) error
// Closes the open database connections.
Close() error
}

4
interleaver/leveldb.go
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@ -75,7 +75,7 @@ func (ldbp *LevelDBBlockProducer) Close() error {
return nil
}
func (ldbp *LevelDBBlockProducer) Next(block *Block) (err error) {
func (ldbp *LevelDBBlockProducer) Next(block *common.Block) (err error) {
if ldbp.iterator == nil {
err = ErrNoMoreBlocks
return
@ -127,7 +127,7 @@ func (ldbc *LevelDBBlockConsumer) Close() error {
return nil
}
func (ldbc *LevelDBBlockConsumer) Consume(block *Block) (err error) {
func (ldbc *LevelDBBlockConsumer) Consume(block *common.Block) (err error) {
var encodedKey []byte
if encodedKey, err = ldbc.encoder(ldbc.joiner(block.Coord)); err != nil {
return

6
interleaver/main.go
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@ -51,16 +51,16 @@ func selectKeyEncoder(interleaved bool) common.KeyEncoder {
func copyProducerToConsumer(producer BlockProducer, consumer BlockConsumer) error {
blocks := make(chan *Block)
blocks := make(chan *common.Block)
done := make(chan struct{})
defer close(done)
pool := sync.Pool{New: func() interface{} { return new(Block) }}
pool := sync.Pool{New: func() interface{} { return new(common.Block) }}
go func() {
defer close(blocks)
for {
block := pool.Get().(*Block)
block := pool.Get().(*common.Block)
if err := producer.Next(block); err != nil {
if err != ErrNoMoreBlocks {
log.Printf("Reading failed: %s\n", err)

4
interleaver/sqlite.go
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@ -112,7 +112,7 @@ func (sbc *SQLiteBlockConsumer) getTx() (tx *sql.Tx, err error) {
return
}
func (sbc *SQLiteBlockConsumer) Consume(block *Block) (err error) {
func (sbc *SQLiteBlockConsumer) Consume(block *common.Block) (err error) {
var tx *sql.Tx
if tx, err = sbc.getTx(); err != nil {
return
@ -149,7 +149,7 @@ func NewSQLiteBlockProducer(
return
}
func (sbp *SQLiteBlockProducer) Next(block *Block) (err error) {
func (sbp *SQLiteBlockProducer) Next(block *common.Block) (err error) {
if sbp.rows == nil {
err = ErrNoMoreBlocks
return