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// 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)
}
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