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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libgo/go/os/signal | |
| download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz | |
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Diffstat (limited to 'libgo/go/os/signal')
| -rw-r--r-- | libgo/go/os/signal/mkunix.sh | 24 | ||||
| -rw-r--r-- | libgo/go/os/signal/signal.go | 48 | ||||
| -rw-r--r-- | libgo/go/os/signal/signal_test.go | 19 |
3 files changed, 91 insertions, 0 deletions
diff --git a/libgo/go/os/signal/mkunix.sh b/libgo/go/os/signal/mkunix.sh new file mode 100644 index 000000000..ec5c9d680 --- /dev/null +++ b/libgo/go/os/signal/mkunix.sh @@ -0,0 +1,24 @@ +#!/usr/bin/env bash +# Copyright 2010 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. + +echo '// ./mkunix.sh' "$1" +echo '// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT' +echo + +cat <<EOH +package signal + +import ( + "syscall" +) + +var _ = syscall.Syscall // in case there are zero signals + +const ( +EOH + +sed -n 's/^const[ ]*\(SIG[A-Z0-9][A-Z0-9]*\)[ ].*/ \1 = UnixSignal(syscall.\1)/p' "$1" + +echo ")" diff --git a/libgo/go/os/signal/signal.go b/libgo/go/os/signal/signal.go new file mode 100644 index 000000000..666c03e73 --- /dev/null +++ b/libgo/go/os/signal/signal.go @@ -0,0 +1,48 @@ +// 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 ( + "runtime" + "strconv" +) + +// A Signal can represent any operating system signal. +type Signal interface { + String() string +} + +type UnixSignal int32 + +func (sig UnixSignal) String() string { + s := runtime.Signame(int32(sig)) + if len(s) > 0 { + return s + } + return "Signal " + strconv.Itoa(int(sig)) +} + +// Incoming is the global signal channel. +// All signals received by the program will be delivered to this channel. +var Incoming <-chan Signal + +func process(ch chan<- Signal) { + for { + var mask uint32 = runtime.Sigrecv() + for sig := uint(0); sig < 32; sig++ { + if mask&(1<<sig) != 0 { + ch <- UnixSignal(sig) + } + } + } +} + +func init() { + runtime.Siginit() + ch := make(chan Signal) // Done here so Incoming can have type <-chan Signal + Incoming = ch + go process(ch) +} diff --git a/libgo/go/os/signal/signal_test.go b/libgo/go/os/signal/signal_test.go new file mode 100644 index 000000000..f2679f14d --- /dev/null +++ b/libgo/go/os/signal/signal_test.go @@ -0,0 +1,19 @@ +// 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 ( + "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).(UnixSignal); sig != SIGHUP { + t.Errorf("signal was %v, want %v", sig, SIGHUP) + } +} |