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XL: Change AppendFile() to return only error (#1932)

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AppendFile ensures that it appends the entire buffer. Returns
an error otherwise, this patch removes the necessity for the
caller to look for 'n' return on short writes.

Ref #1893
This commit is contained in:
Harshavardhana
2016-06-19 15:31:13 -07:00
committed by Anand Babu (AB) Periasamy
parent e1aad066c6
commit 50d25ca94a
11 changed files with 35 additions and 87 deletions
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fs-v1-metadata.go
+2 -10
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@@ -97,13 +97,9 @@ func writeFSFormatData(storage StorageAPI, fsFormat formatConfigV1) error {
return err
}
// fsFormatJSONFile - format.json file stored in minioMetaBucket(.minio) directory.
n, err := storage.AppendFile(minioMetaBucket, fsFormatJSONFile, metadataBytes)
if err != nil {
if err = storage.AppendFile(minioMetaBucket, fsFormatJSONFile, metadataBytes); err != nil {
return err
}
if n != int64(len(metadataBytes)) {
return errUnexpected
}
return nil
}
@@ -113,12 +109,8 @@ func (fs fsObjects) writeFSMetadata(bucket, prefix string, fsMeta fsMetaV1) erro
if err != nil {
return err
}
n, err := fs.storage.AppendFile(bucket, path.Join(prefix, fsMetaJSONFile), metadataBytes)
if err != nil {
if err = fs.storage.AppendFile(bucket, path.Join(prefix, fsMetaJSONFile), metadataBytes); err != nil {
return err
}
if n != int64(len(metadataBytes)) {
return errUnexpected
}
return nil
}