rpcdict.h

extremeDB s sample code,useful for you

/*******************************************************************
 *                                                                 *
 *  rpcdict.h                                                      *
 *                                                                 *
 *  This file is a part of the eXtremeDB source code               *
 *  Copyright (c) 2001-2006 McObject LLC                           * 
 *  All Rights Reserved                                            *
 *                                                                 *
 *******************************************************************/

#ifndef _MCO_RPC_DICTIONARY_H
#define _MCO_RPC_DICTIONARY_H


#define MCORPC_MEMB_ZEROTERM        1       /* for scalars only */
#define MCORPC_MEMB_UNION           2       /* for unions only.  */
#define MCORPC_MEMB_SIZE            4       /* for structs only. */
#define MCORPC_MEMB_LENGTH          8       /* for structs only. */
#define MCORPC_MEMB_VAR_SIZE        (MCORPC_MEMB_SIZE|MCORPC_MEMB_LENGTH)

typedef struct tag_mco_rpc_type_member {
	unsigned int      offset;           /* offset of the field */
	unsigned int      n_elements;       /* number of elements in the field */
	unsigned int      n_deref;          /* number of derefirence for an element */
	unsigned int      type_i;           /* type of an element */
	
	unsigned int 	  attrs;            /* flags */
	unsigned int      active;           /* active member for union */
	unsigned int      size_length;      /* index of size or length field for struct. */
}mco_rpc_type_member_t, *mco_rpc_type_member_p;

#define MCORPC_TYPE_ZEROTERM        1       /* for scalars only */
#define MCORPC_TYPE_UNION           2       /* for unions only.  */
#define MCORPC_TYPE_NETWORK_ORDER   0x100   /* for numerical data types only.  */

typedef struct tag_mco_rpc_type {

	unsigned int            n_elements; /* number of elements */
	unsigned int            n_deref;    /* how many times we need to dereference the pointer to get the value */
	unsigned int 	        ref_i;      /* reference to other data-type */
	unsigned int 	        size;       /* total size (in bytes) of the data */
	
	unsigned int            n_members;  /* number of members in member-array (structs, unions) */
	unsigned int            member_i;   /* pointer to a members-array */
	unsigned int 	        attrs;      /* flags */

}mco_rpc_type_t, *mco_rpc_type_p;

typedef struct tag_mco_rpc_dict {

	unsigned int          version;
	unsigned int          n_types;
	mco_rpc_type_p        types;
	mco_rpc_type_member_p members;

}mco_rpc_dict_t, *mco_rpc_dict_p;

#endif /* _MCO_RPC_DICTIONARY_H */