diff options
Diffstat (limited to 'src/pkg/os/signal')
-rw-r--r-- | src/pkg/os/signal/Makefile | 11 | ||||
-rw-r--r-- | src/pkg/os/signal/signal.go | 33 | ||||
-rw-r--r-- | src/pkg/os/signal/signal_test.go | 20 |
3 files changed, 64 insertions, 0 deletions
diff --git a/src/pkg/os/signal/Makefile b/src/pkg/os/signal/Makefile new file mode 100644 index 000000000..26f58760e --- /dev/null +++ b/src/pkg/os/signal/Makefile @@ -0,0 +1,11 @@ +# 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. + +include ../../../Make.inc + +TARG=os/signal +GOFILES=\ + signal.go\ + +include ../../../Make.pkg diff --git a/src/pkg/os/signal/signal.go b/src/pkg/os/signal/signal.go new file mode 100644 index 000000000..520f3f8a9 --- /dev/null +++ b/src/pkg/os/signal/signal.go @@ -0,0 +1,33 @@ +// 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. + +// Package signal implements operating system-independent signal handling. +package signal + +import ( + "os" + "runtime" +) + +// Incoming is the global signal channel. +// All signals received by the program will be delivered to this channel. +var Incoming <-chan os.Signal + +func process(ch chan<- os.Signal) { + for { + var mask uint32 = runtime.Sigrecv() + for sig := uint(0); sig < 32; sig++ { + if mask&(1<<sig) != 0 { + ch <- os.UnixSignal(sig) + } + } + } +} + +func init() { + runtime.Siginit() + ch := make(chan os.Signal) // Done here so Incoming can have type <-chan Signal + Incoming = ch + go process(ch) +} diff --git a/src/pkg/os/signal/signal_test.go b/src/pkg/os/signal/signal_test.go new file mode 100644 index 000000000..00eb29578 --- /dev/null +++ b/src/pkg/os/signal/signal_test.go @@ -0,0 +1,20 @@ +// 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. + +package signal + +import ( + "os" + "syscall" + "testing" +) + +func TestSignal(t *testing.T) { + // Send this process a SIGHUP. + syscall.Syscall(syscall.SYS_KILL, uintptr(syscall.Getpid()), syscall.SIGHUP, 0) + + if sig := (<-Incoming).(os.UnixSignal); sig != os.SIGHUP { + t.Errorf("signal was %v, want %v", sig, os.SIGHUP) + } +} |