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XL: Implement new ReadAll API for files which are read in single call. (#1974)

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Add a unit test as well.
This commit is contained in:
Harshavardhana
2016-06-25 14:51:06 -07:00
committed by Anand Babu (AB) Periasamy
parent ed2fdd90b0
commit 42286cba70
11 changed files with 211 additions and 48 deletions
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13
xl-v1-multipart-common.go
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@@ -17,7 +17,6 @@
package main
import (
"bytes"
"encoding/json"
"path"
"sort"
@@ -70,21 +69,15 @@ func (u uploadsV1) Index(uploadID string) int {
// readUploadsJSON - get all the saved uploads JSON.
func readUploadsJSON(bucket, object string, disk StorageAPI) (uploadIDs uploadsV1, err error) {
// Staging buffer of 128KiB kept for reading `uploads.json`.
var buf = make([]byte, 128*1024)
// Writer holding `uploads.json` content.
var buffer = new(bytes.Buffer)
uploadJSONPath := path.Join(mpartMetaPrefix, bucket, object, uploadsJSONFile)
// Reads entire `uploads.json`.
if err = copyBuffer(buffer, disk, minioMetaBucket, uploadJSONPath, buf); err != nil {
buf, err := disk.ReadAll(minioMetaBucket, uploadJSONPath)
if err != nil {
return uploadsV1{}, err
}
// Decode `uploads.json`.
d := json.NewDecoder(buffer)
if err = d.Decode(&uploadIDs); err != nil {
if err = json.Unmarshal(buf, &uploadIDs); err != nil {
return uploadsV1{}, err
}