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objcache: Return io.ReaderAt to avoid Seeking and Reading. (#3735)

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This commit is contained in:
Harshavardhana
2017-02-11 17:17:58 -08:00
committed by GitHub
parent 440866d26c
commit 22909c849e
3 changed files with 14 additions and 11 deletions
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2
pkg/objcache/objcache.go
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@@ -217,7 +217,7 @@ func (c *Cache) Create(key string, size int64) (w io.WriteCloser, err error) {
// returns an error ErrNotFoundInCache, if the key does not exist.
// Returns ErrKeyNotFoundInCache if entry's lastAccessedTime is older
// than objModTime.
func (c *Cache) Open(key string, objModTime time.Time) (io.ReadSeeker, error) {
func (c *Cache) Open(key string, objModTime time.Time) (io.ReaderAt, error) {
// Entry exists, return the readable buffer.
c.mutex.Lock()
defer c.mutex.Unlock()

4
pkg/objcache/objcache_test.go
View File

@@ -20,7 +20,6 @@ package objcache
import (
"bytes"
"io"
"io/ioutil"
"testing"
"time"
)
@@ -173,7 +172,8 @@ func TestObjCache(t *testing.T) {
t.Errorf("Test case 4 expected to pass, failed instead %s", err)
}
// Reads everything stored for key "test".
cbytes, err := ioutil.ReadAll(r)
cbytes := make([]byte, 5)
_, err = r.ReadAt(cbytes, 0)
if err != nil {
t.Errorf("Test case 4 expected to pass, failed instead %s", err)
}