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-rw-r--r--src/runtime/testdata/testprognet/main.go35
-rw-r--r--src/runtime/testdata/testprognet/net.go29
-rw-r--r--src/runtime/testdata/testprognet/signal.go27
-rw-r--r--src/runtime/testdata/testprognet/signalexec.go71
4 files changed, 162 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprognet/main.go b/src/runtime/testdata/testprognet/main.go
new file mode 100644
index 0000000..ae491a2
--- /dev/null
+++ b/src/runtime/testdata/testprognet/main.go
@@ -0,0 +1,35 @@
+// Copyright 2015 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 "os"
+
+var cmds = map[string]func(){}
+
+func register(name string, f func()) {
+ if cmds[name] != nil {
+ panic("duplicate registration: " + name)
+ }
+ cmds[name] = f
+}
+
+func registerInit(name string, f func()) {
+ if len(os.Args) >= 2 && os.Args[1] == name {
+ f()
+ }
+}
+
+func main() {
+ if len(os.Args) < 2 {
+ println("usage: " + os.Args[0] + " name-of-test")
+ return
+ }
+ f := cmds[os.Args[1]]
+ if f == nil {
+ println("unknown function: " + os.Args[1])
+ return
+ }
+ f()
+}
diff --git a/src/runtime/testdata/testprognet/net.go b/src/runtime/testdata/testprognet/net.go
new file mode 100644
index 0000000..714b101
--- /dev/null
+++ b/src/runtime/testdata/testprognet/net.go
@@ -0,0 +1,29 @@
+// Copyright 2015 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 (
+ "fmt"
+ "net"
+)
+
+func init() {
+ registerInit("NetpollDeadlock", NetpollDeadlockInit)
+ register("NetpollDeadlock", NetpollDeadlock)
+}
+
+func NetpollDeadlockInit() {
+ fmt.Println("dialing")
+ c, err := net.Dial("tcp", "localhost:14356")
+ if err == nil {
+ c.Close()
+ } else {
+ fmt.Println("error: ", err)
+ }
+}
+
+func NetpollDeadlock() {
+ fmt.Println("done")
+}
diff --git a/src/runtime/testdata/testprognet/signal.go b/src/runtime/testdata/testprognet/signal.go
new file mode 100644
index 0000000..dfa2e10
--- /dev/null
+++ b/src/runtime/testdata/testprognet/signal.go
@@ -0,0 +1,27 @@
+// Copyright 2016 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 !windows && !plan9
+// +build !windows,!plan9
+
+// This is in testprognet instead of testprog because testprog
+// must not import anything (like net, but also like os/signal)
+// that kicks off background goroutines during init.
+
+package main
+
+import (
+ "os/signal"
+ "syscall"
+)
+
+func init() {
+ register("SignalIgnoreSIGTRAP", SignalIgnoreSIGTRAP)
+}
+
+func SignalIgnoreSIGTRAP() {
+ signal.Ignore(syscall.SIGTRAP)
+ syscall.Kill(syscall.Getpid(), syscall.SIGTRAP)
+ println("OK")
+}
diff --git a/src/runtime/testdata/testprognet/signalexec.go b/src/runtime/testdata/testprognet/signalexec.go
new file mode 100644
index 0000000..62ebce7
--- /dev/null
+++ b/src/runtime/testdata/testprognet/signalexec.go
@@ -0,0 +1,71 @@
+// Copyright 2017 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 darwin || dragonfly || freebsd || linux || netbsd || openbsd
+// +build darwin dragonfly freebsd linux netbsd openbsd
+
+// This is in testprognet instead of testprog because testprog
+// must not import anything (like net, but also like os/signal)
+// that kicks off background goroutines during init.
+
+package main
+
+import (
+ "fmt"
+ "os"
+ "os/exec"
+ "os/signal"
+ "sync"
+ "syscall"
+ "time"
+)
+
+func init() {
+ register("SignalDuringExec", SignalDuringExec)
+ register("Nop", Nop)
+}
+
+func SignalDuringExec() {
+ pgrp := syscall.Getpgrp()
+
+ const tries = 10
+
+ var wg sync.WaitGroup
+ c := make(chan os.Signal, tries)
+ signal.Notify(c, syscall.SIGWINCH)
+ wg.Add(1)
+ go func() {
+ defer wg.Done()
+ for range c {
+ }
+ }()
+
+ for i := 0; i < tries; i++ {
+ time.Sleep(time.Microsecond)
+ wg.Add(2)
+ go func() {
+ defer wg.Done()
+ cmd := exec.Command(os.Args[0], "Nop")
+ cmd.Stdout = os.Stdout
+ cmd.Stderr = os.Stderr
+ if err := cmd.Run(); err != nil {
+ fmt.Printf("Start failed: %v", err)
+ }
+ }()
+ go func() {
+ defer wg.Done()
+ syscall.Kill(-pgrp, syscall.SIGWINCH)
+ }()
+ }
+
+ signal.Stop(c)
+ close(c)
+ wg.Wait()
+
+ fmt.Println("OK")
+}
+
+func Nop() {
+ // This is just for SignalDuringExec.
+}