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// Copyright 2015 Google Inc. All Rights Reserved.
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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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package samples
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import (
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"fmt"
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"log"
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"strings"
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"time"
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"github.com/jacobsa/fuse"
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)
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// Unmount the file system mounted at the supplied directory. Try again on
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// "resource busy" errors, which happen from time to time on OS X (due to weird
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// requests from the Finder) and when tests don't or can't synchronize all
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// events.
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func unmount(dir string) error {
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delay := 10 * time.Millisecond
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for {
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err := fuse.Unmount(dir)
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if err == nil {
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return err
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}
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if strings.Contains(err.Error(), "resource busy") {
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log.Println("Resource busy error while unmounting; trying again")
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time.Sleep(delay)
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delay = time.Duration(1.3 * float64(delay))
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continue
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}
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return fmt.Errorf("Unmount: %v", err)
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}
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}
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