54 lines
876 B
Go
54 lines
876 B
Go
// 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.
|
|
|
|
// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris windows
|
|
|
|
package signal
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
)
|
|
|
|
// In assembly.
|
|
func signal_disable(uint32)
|
|
func signal_enable(uint32)
|
|
func signal_recv() uint32
|
|
|
|
func loop() {
|
|
for {
|
|
process(syscall.Signal(signal_recv()))
|
|
}
|
|
}
|
|
|
|
func init() {
|
|
signal_enable(0) // first call - initialize
|
|
go loop()
|
|
}
|
|
|
|
const (
|
|
numSig = 65 // max across all systems
|
|
)
|
|
|
|
func signum(sig os.Signal) int {
|
|
switch sig := sig.(type) {
|
|
case syscall.Signal:
|
|
i := int(sig)
|
|
if i < 0 || i >= numSig {
|
|
return -1
|
|
}
|
|
return i
|
|
default:
|
|
return -1
|
|
}
|
|
}
|
|
|
|
func enableSignal(sig int) {
|
|
signal_enable(uint32(sig))
|
|
}
|
|
|
|
func disableSignal(sig int) {
|
|
signal_disable(uint32(sig))
|
|
}
|