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select6.go
// run // Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Test for select: Issue 2075 // A bug in select corrupts channel queues of failed cases // if there are multiple waiters on those channels and the // select is the last in the queue. If further waits are made // on the channel without draining it first then those waiters // will never wake up. In the code below c1 is such a channel. package main func main() { c1 := make(chan bool) c2 := make(chan bool) c3 := make(chan bool) go func() { <-c1 }() go func() { select { case <-c1: panic("dummy") case <-c2: c3 <- true } <-c1 }() go func() { c2 <- true }() <-c3 c1 <- true c1 <- true }
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