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// Copyright (c) 2010-2013 David Caldwell <david@porkrind.org> -*- c++ -*-
// Licenced under the GPL 3.0 or any later version. See LICENSE file for details.
#ifndef __DAEMON_H__
#define __DAEMON_H__
#include "user.h"
#include "passwd.h"
#include <string>
#include <list>
#include <time.h>
enum run_state { stopped, stopping, running, coolingdown };
const std::string _state_str[] = { "stopped", "stopping", "running", "coolingdown" };
const map<string,string> the_empty_map;
class daemon {
public:
std::string id;
std::string name;
std::string config_file;
time_t config_file_stamp;
//int socket;
class user *user;
// From config file:
struct config {
std::string working_dir;
pwent run_as;
std::string start_command;
bool autostart;
bool log_output;
std::map<std::string,std::string> environment;
} config;
// state:
struct current {
int pid;
run_state state;
time_t cooldown;
time_t cooldown_start;
size_t respawns;
time_t start_time;
time_t respawn_time;
} current;
// Something important to warn the user about.
std::list<string> whine_list;
string get_and_clear_whines();
daemon(std::string config_file, class user *user);
void load_config();
bool exists();
std::string log_file();
std::string state_str() { return _state_str[current.state]; }
int fork_setuid_exec(string command, map<string,string> env = the_empty_map);
void start(bool respawn=false);
void stop();
void respawn();
void reap();
time_t cooldown_remaining();
std::map<std::string,std::string> to_map();
void from_map(map<string,string> data);
};
bool daemon_compare(class daemon *a, class daemon *b);
// Use as a unary predicate for find_if and similar.
class daemon_id_match {
public: string &id;
daemon_id_match(string &id) : id(id) {}
bool operator()(class daemon *d) { return d->id == id; }
};
#endif /* __DAEMON_H__ */
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