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v0.6.1: Merge pull request #57 from honeycombio/toshok.send-using-sync-once
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@houndtravisci houndtravisci released this 21 Apr 16:32
v0.6.1
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Learn about vigilant mode. 
It looks to be (theoretically, I haven't verified by testing it) possible for multiple goroutines to end up in this particular switch arm at the same time.

Use a `sync.Once` to make sure that even if that happens they can't both try to close the channel and/or send the trace.
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