From ccd992355df7192993c666236047820244914598 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:19:13 +0200 Subject: Adding upstream version 1.21.8. Signed-off-by: Daniel Baumann --- src/os/signal/example_unix_test.go | 47 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/os/signal/example_unix_test.go (limited to 'src/os/signal/example_unix_test.go') diff --git a/src/os/signal/example_unix_test.go b/src/os/signal/example_unix_test.go new file mode 100644 index 0000000..b7047ac --- /dev/null +++ b/src/os/signal/example_unix_test.go @@ -0,0 +1,47 @@ +// Copyright 2020 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. + +//go:build unix + +package signal_test + +import ( + "context" + "fmt" + "log" + "os" + "os/signal" + "time" +) + +// This example passes a context with a signal to tell a blocking function that +// it should abandon its work after a signal is received. +func ExampleNotifyContext() { + ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt) + defer stop() + + p, err := os.FindProcess(os.Getpid()) + if err != nil { + log.Fatal(err) + } + + // On a Unix-like system, pressing Ctrl+C on a keyboard sends a + // SIGINT signal to the process of the program in execution. + // + // This example simulates that by sending a SIGINT signal to itself. + if err := p.Signal(os.Interrupt); err != nil { + log.Fatal(err) + } + + select { + case <-time.After(time.Second): + fmt.Println("missed signal") + case <-ctx.Done(): + fmt.Println(ctx.Err()) // prints "context canceled" + stop() // stop receiving signal notifications as soon as possible. + } + + // Output: + // context canceled +} -- cgit v1.2.3