Initial commit: Go 1.23 release state

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
+}