/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sshd.server;
import java.util.HashMap;
import java.util.Map;
/**
* System signals definition that the shell can receive.
*
* @see Environment
*/
public enum Signal {
HUP(1),
INT(2),
QUIT(3),
ILL(4),
TRAP(5),
IOT(6),
BUS(7),
FPE(8),
KILL(9),
USR1(10),
SEGV(11),
USR2(12),
PIPE(13),
ALRM(14),
TERM(15),
STKFLT(16),
CHLD(17),
CONT(18),
STOP(19),
TSTP(20),
TTIN(21),
TTOU(22),
URG(23),
XCPU(24),
XFSZ(25),
VTALRM(26),
PROF(27),
WINCH(28),
IO(29),
PWR(30);
private static final Map<String, Signal> lookupTable = new HashMap<String, Signal>(40);
static {
// registering the signals in the lookup table to allow faster
// string based signal lookups
for (Signal s : Signal.values()) {
lookupTable.put(s.name(), s);
}
}
public static Signal get(String name) {
return lookupTable.get(name);
}
private final int numeric;
private Signal(int numeric) {
this.numeric = numeric;
}
public int getNumeric() {
return numeric;
}
}