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42 lines
1.5 KiB
42 lines
1.5 KiB
/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package http
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import (
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"io"
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"io/ioutil"
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)
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// DrainBody close non nil response with any response Body.
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// convenient wrapper to drain any remaining data on response body.
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//
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// Subsequently this allows golang http RoundTripper
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// to re-use the same connection for future requests.
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func DrainBody(respBody io.ReadCloser) {
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// Callers should close resp.Body when done reading from it.
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// If resp.Body is not closed, the Client's underlying RoundTripper
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// (typically Transport) may not be able to re-use a persistent TCP
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// connection to the server for a subsequent "keep-alive" request.
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if respBody != nil {
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// Drain any remaining Body and then close the connection.
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// Without this closing connection would disallow re-using
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// the same connection for future uses.
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// - http://stackoverflow.com/a/17961593/4465767
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defer respBody.Close()
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io.Copy(ioutil.Discard, respBody)
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}
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}
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