// run // Copyright 2009 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. package main import "time" func main() { var count int c := make(chan byte) go func(c chan byte) { <-c count++ time.Sleep(1000000) count++ <-c }(c) c <- 1 c <- 2 if count != 2 { panic("synchronous send did not wait") } }