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https://github.com/tailscale/tailscale.git
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71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
62 lines
1.2 KiB
Go
62 lines
1.2 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package dns
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import (
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"context"
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"github.com/illarion/gonotify"
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)
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func (m *directManager) runFileWatcher() {
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in, err := gonotify.NewInotify()
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if err != nil {
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// Oh well, we tried. This is all best effort for now, to
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// surface warnings to users.
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m.logf("dns: inotify new: %v", err)
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return
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}
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ctx, cancel := context.WithCancel(m.ctx)
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defer cancel()
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go m.closeInotifyOnDone(ctx, in)
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const events = gonotify.IN_ATTRIB |
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gonotify.IN_CLOSE_WRITE |
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gonotify.IN_CREATE |
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gonotify.IN_DELETE |
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gonotify.IN_MODIFY |
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gonotify.IN_MOVE
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if err := in.AddWatch("/etc/", events); err != nil {
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m.logf("dns: inotify addwatch: %v", err)
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return
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}
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for {
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events, err := in.Read()
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if ctx.Err() != nil {
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return
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}
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if err != nil {
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m.logf("dns: inotify read: %v", err)
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return
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}
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var match bool
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for _, ev := range events {
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if ev.Name == resolvConf {
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match = true
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break
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}
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}
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if !match {
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continue
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}
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m.checkForFileTrample()
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}
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}
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func (m *directManager) closeInotifyOnDone(ctx context.Context, in *gonotify.Inotify) {
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<-ctx.Done()
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in.Close()
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}
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