diff options
Diffstat (limited to 'test/chan/goroutines.go')
-rw-r--r-- | test/chan/goroutines.go | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/test/chan/goroutines.go b/test/chan/goroutines.go new file mode 100644 index 0000000..6ffae7d --- /dev/null +++ b/test/chan/goroutines.go @@ -0,0 +1,41 @@ +// 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. + +// Torture test for goroutines. +// Make a lot of goroutines, threaded together, and tear them down cleanly. + +package main + +import ( + "os" + "strconv" +) + +func f(left, right chan int) { + left <- <-right +} + +func main() { + var n = 10000 + if len(os.Args) > 1 { + var err error + n, err = strconv.Atoi(os.Args[1]) + if err != nil { + print("bad arg\n") + os.Exit(1) + } + } + leftmost := make(chan int) + right := leftmost + left := leftmost + for i := 0; i < n; i++ { + right = make(chan int) + go f(left, right) + left = right + } + go func(c chan int) { c <- 1 }(right) + <-leftmost +} |