oci: Copy-edits for waitContainerStop chControl comment
The old "won't never" was a potentially-confusing double negative. This commit rewords the comment to avoid that issue and also lands some other minor cleanups. Signed-off-by: W. Trevor King <wking@tremily.us>
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1 changed files with 6 additions and 6 deletions
12
oci/oci.go
12
oci/oci.go
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@ -563,12 +563,12 @@ func (r *Runtime) UpdateContainer(c *Container, res *rspec.LinuxResources) error
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func waitContainerStop(ctx context.Context, c *Container, timeout time.Duration) error {
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done := make(chan struct{})
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// we could potentially re-use "done" channel to exit the loop on timeout
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// but we use another channel "chControl" so that we won't never incur in the
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// case the "done" channel is closed in the "default" select case and we also
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// reach the timeout in the select below. If that happens we could raise
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// a panic closing a closed channel so better be safe and use another new
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// channel just to control the loop.
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// we could potentially re-use "done" channel to exit the loop on timeout,
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// but we use another channel "chControl" so that we never panic
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// attempting to close an already-closed "done" channel. The panic
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// would occur in the "default" select case below if we'd closed the
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// "done" channel (instead of the "chControl" channel) in the timeout
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// select case.
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chControl := make(chan struct{})
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go func() {
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for {
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