/*
	(c) Copyright  2012 - 2018 Anton Sviridenko
	https://picapica.im

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, version 3.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

#ifndef PICA_MSGPROC_H
#define PICA_MSGPROC_H

#define PICA_MSG_FIXED_SIZE 0
#define PICA_MSG_VAR_SIZE 1
#define PICA_MSG_VARSIZE_INT8 1
#define PICA_MSG_VARSIZE_INT16 2

struct PICA_msginfo
{
	unsigned int msgid;
	/* PICA_MSG_FIXED_SIZE if message has fixed size, PICA_MSG_VAR_SIZE in case of variable size */
	unsigned int fixedsz;
	/* Size of the whole message in case of fixed-size message or number of octets that store size of the message */
	unsigned int sz;
	/* Pointer to message handler */
	unsigned int (*msgprocfn)(unsigned char*, unsigned int, void*);
};

unsigned int PICA_msggetsize(unsigned char *buf, unsigned int nb, struct PICA_msginfo *msgs, unsigned int nmsg);

unsigned int PICA_processmsg(unsigned char *buf, unsigned int size, void* arg, struct PICA_msginfo *msgs, unsigned int nmsg);

unsigned int PICA_processdatastream(unsigned char *buf, unsigned int *read_pos, void* arg, const struct PICA_msginfo *msgs, unsigned int nmsg);
#endif