1 // run 2 3 // Copyright 2009 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 package main 8 9 import "time" 10 11 func main() { 12 var count int 13 c := make(chan byte) 14 go func(c chan byte) { 15 <-c 16 count++ 17 time.Sleep(1000000) 18 count++ 19 <-c 20 }(c) 21 c <- 1 22 c <- 2 23 if count != 2 { 24 panic("synchronous send did not wait") 25 } 26 } 27
