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callback.go
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callback.go
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// Copyright 2019 Huawei Technologies Co.,Ltd.
// 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 obs
import (
"errors"
"io"
)
type ICallbackReadCloser interface {
setCallbackReadCloser(body io.ReadCloser)
}
func (output *PutObjectOutput) setCallbackReadCloser(body io.ReadCloser) {
output.CallbackBody.data = body
}
func (output *CompleteMultipartUploadOutput) setCallbackReadCloser(body io.ReadCloser) {
output.CallbackBody.data = body
}
// define CallbackBody
type CallbackBody struct {
data io.ReadCloser
}
func (output CallbackBody) ReadCallbackBody(p []byte) (int, error) {
if output.data == nil {
return 0, errors.New("have no callback data")
}
return output.data.Read(p)
}
func (output CallbackBody) CloseCallbackBody() error {
if output.data == nil {
return errors.New("have no callback data")
}
return output.data.Close()
}