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Implement GetObjectNInfo object layer call (#6290)

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This combines calling GetObjectInfo and GetObject while returning a
io.ReadCloser for the object's body. This allows the two operations to
be under a single lock, fixing a race between getting object info and
reading the object body.
This commit is contained in:
Aditya Manthramurthy
2018-08-27 02:58:23 -07:00
committed by Nitish Tiwari
parent cea4f82586
commit e6d740ce09
19 changed files with 926 additions and 69 deletions
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3
cmd/object-api-interface.go
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@@ -40,6 +40,9 @@ type ObjectLayer interface {
ListObjectsV2(ctx context.Context, bucket, prefix, continuationToken, delimiter string, maxKeys int, fetchOwner bool, startAfter string) (result ListObjectsV2Info, err error)
// Object operations.
GetObjectNInfo(ctx context.Context, bucket, object string, rs *HTTPRangeSpec) (objInfo ObjectInfo, reader io.ReadCloser, err error)
GetObject(ctx context.Context, bucket, object string, startOffset int64, length int64, writer io.Writer, etag string) (err error)
GetObjectInfo(ctx context.Context, bucket, object string) (objInfo ObjectInfo, err error)
PutObject(ctx context.Context, bucket, object string, data *hash.Reader, metadata map[string]string) (objInfo ObjectInfo, err error)