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minio/fs-createfile.go

41 lines
1.1 KiB

/*
* Minio Cloud Storage, (C) 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import "io"
func fsCreateFile(disk StorageAPI, reader io.Reader, buf []byte, tmpBucket, tempObj string) (int64, error) {
bytesWritten := int64(0)
// Read the buffer till io.EOF and append the read data to the temporary file.
for {
n, rErr := reader.Read(buf)
if rErr != nil && rErr != io.EOF {
return 0, rErr
}
bytesWritten += int64(n)
if n > 0 {
wErr := disk.AppendFile(tmpBucket, tempObj, buf[0:n])
if wErr != nil {
return 0, wErr
}
}
if rErr == io.EOF {
break
}
}
return bytesWritten, nil
}