Subversion Repositories openrisc

// $G $D/$F.go && $L $F.$A && ./$A.out

// 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.

// 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

}