#ifndef _PROCESS_H
#define _PROCESS_H

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/wait.h>
#include <error.h>
#include <errno.h>
#include <stdint.h>

struct event_handler;

typedef int (handle_event_fn_t)(struct event_handler *);
typedef int (work_fn_t)(void *);

struct event_handler {
	int fd;
	uint32_t events;
	handle_event_fn_t *handle_event;
	char *name;
};

int register_event_handler(struct event_handler *handler);

int init_jobcontrol(int max_jobs_requested);
int poll_job_requests(int timeout);
int do_fork(void);
int run(const char *p, char *const argv[]);
int clear_zombie(int pid);
int run_piped(const char *cmd, char *const argv[],
	      int *stdinfd, int *stdoutfd, int *stderrfd);
int run_piped_stream(const char *cmd, char *const argv[],
		     FILE **stdinf, FILE **stdoutf, FILE **stderrf);

enum {
	WORK_PRIORITY_HIGH,
	WORK_PRIORITY_LOW,
	WORK_PRIORITIES_NUM,
};

int queue_work(unsigned int priority, char *name,
	int (work_fn)(void *arg), void *arg);

#endif