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/**
* mds — A micro-display server
* Copyright © 2014, 2015, 2016, 2017 Mattias Andrée (maandree@kth.se)
*
* 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/>.
*/
#ifndef MDS_MDS_RESPAWN_H
#define MDS_MDS_RESPAWN_H
#include "mds-base.h"
#include <sys/types.h>
#include <time.h>
/**
* The server has not started yet
*/
#define UNBORN 0
/**
* The server is up and running
*/
#define ALIVE 1
/**
* The server has crashed and will be respawn momentarily
*/
#define DEAD 2
/**
* The server crashed too fast, it will only respawn if SIGUSR2 is received
*/
#define DEAD_AND_BURIED 3
/**
* The server has exited successfully, it will never be respawn again
*/
#define CREMATED 4
/**
* Check that a state is a value state
*
* @param VALUE:int The state
* @return :int Whether the state is value
*/
#define validate_state(VALUE) (UNBORN <= (VALUE) && (VALUE) <= CREMATED)
/**
* The state and identifier of a server
*/
typedef struct server_state {
/**
* The server's process ID
*/
pid_t pid;
/**
* The server's state
*/
int state;
/**
* The time (monotonic) the server started
*/
struct timespec started;
} server_state_t;
#endif
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