labcomm_private.h

#ifndef _LABCOMM_PRIVATE_H_
#define _LABCOMM_PRIVATE_H_

#include <endian.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "labcomm.h"

/*
 * Predeclared aggregate type indices
 */
#define LABCOMM_TYPEDEF  0x01
#define LABCOMM_SAMPLE   0x02
#define LABCOMM_ARRAY    0x10
#define LABCOMM_STRUCT   0x11

/*
 * Predeclared primitive type indices
 */
#define LABCOMM_BOOLEAN  0x20 
#define LABCOMM_BYTE     0x21
#define LABCOMM_SHORT    0x22
#define LABCOMM_INT      0x23
#define LABCOMM_LONG     0x24
#define LABCOMM_FLOAT    0x25
#define LABCOMM_DOUBLE   0x26
#define LABCOMM_STRING   0x27

/*
 * Start index for user defined types
 */
#define LABCOMM_USER     0x80

/*
 * Semi private decoder declarations
 */
typedef void (*labcomm_handler_typecast_t)(void *, void *);

typedef void (*labcomm_decoder_typecast_t)(
  struct labcomm_decoder *,
  labcomm_handler_typecast_t,
  void *);

typedef struct labcomm_decoder {
  void *context;
  labcomm_reader_t reader;
  void (*do_register)(struct labcomm_decoder *, 
		      labcomm_signature_t *, 
		      labcomm_decoder_typecast_t,
		      labcomm_handler_typecast_t,
		      void *context);
  int (*do_decode_one)(struct labcomm_decoder *decoder);
} labcomm_decoder_t;

/*
 * Non typesafe registration function to be called from
 * generated labcomm_decoder_register_* functions.
 */
void labcomm_internal_decoder_register(
  labcomm_decoder_t *, 
  labcomm_signature_t *, 
  labcomm_decoder_typecast_t,
  labcomm_handler_typecast_t,
  void *context);

#if __BYTE_ORDER == __LITTLE_ENDIAN

#define LABCOMM_DECODE(name, type)					\
  static inline type labcomm_read_##name(labcomm_reader_t *r) {		\