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// Copyright 2016 The go-qemu Authors.
//
// 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 qemu
import (
"io"
"os"
)
// newRemoveReadFileCloser opens a temporary file in the filesystem with the
// input name and returns an io.ReadCloser which removes the temporary file
// when Close is called.
func newRemoveFileReadCloser(name string) (io.ReadCloser, error) {
f, err := os.Open(name)
if err != nil {
return nil, err
}
return &removeFileReadCloser{File: f}, nil
}
var _ io.ReadCloser = &removeFileReadCloser{}
// A removeFileReadCloser is a *os.File wrapper which removes the embedded file
// when its Close method is called.
type removeFileReadCloser struct {
*os.File
}
// Close closes the file handle and removes the file from the filesystem.
func (c *removeFileReadCloser) Close() error {
if err := c.File.Close(); err != nil {
_ = os.Remove(c.File.Name())
return err
}
return os.Remove(c.File.Name())
}
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