/*
 * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef UTILS_H
#define UTILS_H

#define MIN(a, b) ((a) < (b) ? (a) : (b))

struct imsgev {
	struct imsgbuf	 ibuf;
	void		(*handler)(int, short, void *);
	struct event	 ev;
	short		 events;
};

void	*xmalloc(size_t);
void	*xcalloc(size_t, size_t);
char	*xstrdup(const char *);
void	*xmemdup(const void *, size_t);

const char	*pp_msg_type(uint8_t);
const char	*pp_qid_type(uint8_t);

void		hexdump(const char *, uint8_t *data, size_t len);

void	imsg_event_add(struct imsgev *);
int	imsg_compose_event(struct imsgev *, uint16_t, uint32_t, pid_t,
	    int, const void *, uint16_t);

#endif