psiphon-tunnel-core/psiphon/server/signal.go

//go:build !windows
// +build !windows

/*
 * Copyright (c) 2021, Psiphon Inc.
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package server

import (
	"os"
	"os/signal"
	"syscall"
)

func makeSIGUSR1Channel() chan os.Signal {
	channel := make(chan os.Signal, 1)
	signal.Notify(channel, syscall.SIGUSR1)
	return channel
}

func makeSIGUSR2Channel() chan os.Signal {
	channel := make(chan os.Signal, 1)
	signal.Notify(channel, syscall.SIGUSR2)
	return channel
}

func makeSIGTSTPChannel() chan os.Signal {
	channel := make(chan os.Signal, 1)
	signal.Notify(channel, syscall.SIGTSTP)
	return channel
}

func makeSIGCONTChannel() chan os.Signal {
	channel := make(chan os.Signal, 1)
	signal.Notify(channel, syscall.SIGCONT)
	return channel
}