/*
 * Copyright (c) 2021, 2024 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.
 */

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

#define IMSG_DATA_SIZE(imsg)	((imsg).hdr.len - IMSG_HEADER_SIZE)

enum imsg_type {
	/* ui <-> net */
	IMSG_GET,		/* struct get_req, peerid is the tab id */
	IMSG_ERR,
	IMSG_CHECK_CERT,
	IMSG_CERT_STATUS,
	IMSG_REPLY,		/* reply code (int) + meta string */
	IMSG_PROCEED,
	IMSG_STOP,
	IMSG_BUF,
	IMSG_EOF,
	IMSG_QUIT,

	/* ui <-> ctl */
	IMSG_CTL_OPEN_URL,
};

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

int		 ibuf_borrow_str(struct ibuf *, char **);