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Extract chunkSize as a const

This commit is contained in:
Matt Joiner 2016-08-31 18:04:11 +10:00
parent 1a1676c445
commit c121615fab
1 changed files with 8 additions and 6 deletions
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14
storage/boltdb.go
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@ -10,6 +10,8 @@ import (
"github.com/anacrolix/torrent/metainfo"
)
const chunkSize = 1 << 14
var (
data = []byte("data")
completed = []byte("completed")
@ -85,12 +87,12 @@ func (me *boltDBPiece) ReadAt(b []byte, off int64) (n int, err error) {
if db == nil {
return nil
}
ci := off / (1 << 14)
off %= 1 << 14
ci := off / chunkSize
off %= chunkSize
for len(b) != 0 {
ck := me.chunkKey(int(ci))
_b := db.Get(ck[:])
if len(_b) != 1<<14 {
if len(_b) != chunkSize {
break
}
n1 := copy(b, _b[off:])
@ -124,10 +126,10 @@ func (me *boltDBPiece) WriteAt(b []byte, off int64) (n int, err error) {
if err != nil {
return err
}
ci := off / (1 << 14)
off %= 1 << 14
ci := off / chunkSize
off %= chunkSize
for len(b) != 0 {
_b := make([]byte, 1<<14)
_b := make([]byte, chunkSize)
ck := me.chunkKey(int(ci))
copy(_b, db.Get(ck[:]))
n1 := copy(_b[off:], b)