From 73df946d56c74384511a194dd01dbe099584fd1a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:14:23 +0200 Subject: Adding upstream version 1.16.10. Signed-off-by: Daniel Baumann --- misc/cgo/stdio/testdata/chain.go | 48 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 misc/cgo/stdio/testdata/chain.go (limited to 'misc/cgo/stdio/testdata/chain.go') diff --git a/misc/cgo/stdio/testdata/chain.go b/misc/cgo/stdio/testdata/chain.go new file mode 100644 index 0000000..6c3f406 --- /dev/null +++ b/misc/cgo/stdio/testdata/chain.go @@ -0,0 +1,48 @@ +// run -tags=use_go_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. + +// +build test_run + +// Pass numbers along a chain of threads. + +package main + +import ( + "runtime" + "strconv" + + "cgostdio/stdio" +) + +const N = 10 +const R = 5 + +func link(left chan<- int, right <-chan int) { + // Keep the links in dedicated operating system + // threads, so that this program tests coordination + // between pthreads and not just goroutines. + runtime.LockOSThread() + for { + v := <-right + stdio.Stdout.WriteString(strconv.Itoa(v) + "\n") + left <- 1 + v + } +} + +func main() { + leftmost := make(chan int) + var left chan int + right := leftmost + for i := 0; i < N; i++ { + left, right = right, make(chan int) + go link(left, right) + } + for i := 0; i < R; i++ { + right <- 0 + x := <-leftmost + stdio.Stdout.WriteString(strconv.Itoa(x) + "\n") + } +} -- cgit v1.2.3