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/* SPDX-License-Identifier: ISC */
#ifndef INIT_H
#define INIT_H
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <endian.h>
#include <stdio.h>
#include <errno.h>
#include <poll.h>
#include <linux/reboot.h>
#include <sys/signalfd.h>
#include <sys/reboot.h>
#include <signal.h>
#include "initsock.h"
#include "service.h"
#include "util.h"
#define RUNSVCBIN SCRIPTDIR "/runsvc"
enum {
STATUS_OK = 0,
STATUS_FAIL,
STATUS_WAIT,
STATUS_STARTED,
};
/********** main.c **********/
void target_completed(int target);
/********** runsvc.c **********/
/*
Invoke the runsvc command to execute the comands of a service.
Returns the pid of the child process containing the runsvc instance.
*/
pid_t runsvc(service_t *svc);
/********** status.c **********/
/*
Print a status message. Type is either STATUS_OK, STATUS_FAIL,
STATUS_WAIT or STATUS_STARTED.
A new-line is appended to the mssage, UNLESS type is STATUS_WAIT.
If update is true, print a carriage return first to overwrite the
current line (e.g. after a STATUS_WAIT message).
*/
void print_status(const char *msg, int type, bool update);
/********** supervisor.c **********/
void supervisor_handle_exited(pid_t pid, int status);
void supervisor_set_target(int next);
void supervisor_init(void);
bool supervisor_process_queues(void);
void supervisor_reload_config(void);
void supervisor_answer_status_request(int fd, const void *dest_addr,
size_t addrlen, E_SERVICE_STATE filter);
void supervisor_start(int id);
void supervisor_stop(int id);
/********** signal_<platform>.c **********/
/*
Setup signal handling. Returns -1 on error, a file descriptor on
success.
The returned file descriptor can be polled and becomes readable
when a signal arrives. Reading from it returns a signalfd_siginfo
structure.
The returned file descriptor has the close on exec flag set.
The kernel is also told to send us SIGINT signals if a user presses
the local equivalent of CTRL+ALT+DEL.
*/
int sigsetup(void);
/*
Undo everything that sigsetup() changed about signal handling and
restore the default.
*/
void sigreset(void);
/********** initsock.c **********/
int init_socket_create(void);
int init_socket_send_status(int fd, const void *dest_addr, size_t addrlen,
E_SERVICE_STATE state, service_t *svc);
#endif /* INIT_H */
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