diff options
Diffstat (limited to 'libgo/go/os/signal/signal_plan9.go')
-rw-r--r-- | libgo/go/os/signal/signal_plan9.go | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libgo/go/os/signal/signal_plan9.go b/libgo/go/os/signal/signal_plan9.go new file mode 100644 index 00000000000..b065ae520d7 --- /dev/null +++ b/libgo/go/os/signal/signal_plan9.go @@ -0,0 +1,60 @@ +// Copyright 2012 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" +) + +var sigtab = make(map[os.Signal]int) + +// In sig.s; jumps to runtime. +func signal_disable(uint32) +func signal_enable(uint32) +func signal_ignore(uint32) +func signal_recv() string + +func init() { + signal_enable(0) // first call - initialize + go loop() +} + +func loop() { + for { + process(syscall.Note(signal_recv())) + } +} + +const numSig = 256 + +func signum(sig os.Signal) int { + switch sig := sig.(type) { + case syscall.Note: + n, ok := sigtab[sig] + if !ok { + n = len(sigtab) + 1 + if n > numSig { + return -1 + } + sigtab[sig] = n + } + return n + default: + return -1 + } +} + +func enableSignal(sig int) { + signal_enable(uint32(sig)) +} + +func disableSignal(sig int) { + signal_disable(uint32(sig)) +} + +func ignoreSignal(sig int) { + signal_ignore(uint32(sig)) +} |