+++ /dev/null
-/* $Id$ */
-
-/* gras/datadesc.h - Describing the data you want to exchange */
-
-/* Authors: Martin Quinson */
-/* Copyright (C) 2003, 2004 Martin Quinson. */
-
-/* This program is free software; you can redistribute it and/or modify it
- under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef GRAS_DATADESC_H
-#define GRAS_DATADESC_H
-
-#include <stddef.h> /* offsetof() */
-#include <sys/types.h> /* size_t */
-#include <stdarg.h>
-
-
-/*! C++ users need love */
-#ifndef BEGIN_DECL
-# ifdef __cplusplus
-# define BEGIN_DECL extern "C" {
-# else
-# define BEGIN_DECL
-# endif
-#endif
-
-/*! C++ users need love */
-#ifndef END_DECL
-# ifdef __cplusplus
-# define END_DECL }
-# else
-# define END_DECL
-# endif
-#endif
-/* End of cruft for C++ */
-
-BEGIN_DECL
-
-
-/**
- * gras_datadesc_type_t:
- *
- * Opaque type describing a type description you don't want to open.
- */
-typedef struct s_gras_datadesc_type gras_datadesc_type_t;
-
-/* callbacks prototypes */
-typedef void (*gras_datadesc_type_cb_void_t)(void *vars,
- gras_datadesc_type_t *p_type,
- void *data);
-typedef int (*gras_datadesc_type_cb_int_t)(void *vars,
- gras_datadesc_type_t *p_type,
- void *data);
-
-/***********************************************
- **** Search and retrieve declared datatype ****
- ***********************************************/
-gras_datadesc_type_t *gras_datadesc_by_name(const char *name);
-
-/******************************************
- **** Declare datadescription yourself ****
- ******************************************/
-
-gras_error_t
-gras_datadesc_declare_struct(const char *name,
- gras_datadesc_type_t **dst);
-gras_error_t
-gras_datadesc_declare_struct_append(gras_datadesc_type_t *struct_type,
- const char *name,
- gras_datadesc_type_t *field_type);
-void
-gras_datadesc_declare_struct_close(gras_datadesc_type_t *struct_type);
-gras_error_t
-gras_datadesc_declare_union(const char *name,
- gras_datadesc_type_cb_int_t selector,
- gras_datadesc_type_t **dst);
-gras_error_t
-gras_datadesc_declare_union_append(gras_datadesc_type_t *union_type,
- const char *name,
- gras_datadesc_type_t *field_type);
-void
-gras_datadesc_declare_union_close(gras_datadesc_type_t *union_type);
-gras_error_t
-gras_datadesc_declare_ref(const char *name,
- gras_datadesc_type_t *referenced_type,
- gras_datadesc_type_t **dst);
-gras_error_t
-gras_datadesc_declare_ref_generic(const char *name,
- gras_datadesc_type_cb_int_t discriminant,
- gras_datadesc_type_t **dst);
-gras_error_t
-gras_datadesc_declare_array_fixed(const char *name,
- gras_datadesc_type_t *element_type,
- long int fixed_size,
- gras_datadesc_type_t **dst);
-gras_error_t
-gras_datadesc_declare_array_dyn(const char *name,
- gras_datadesc_type_t *element_type,
- gras_datadesc_type_cb_int_t dynamic_size,
- gras_datadesc_type_t **dst);
-
-/*********************************
- * Change stuff within datadescs *
- *********************************/
-
-typedef struct s_gras_dd_cbps gras_dd_cbps_t;
-void gras_datadesc_cb_set_pre (gras_datadesc_type_t *type,
- gras_datadesc_type_cb_void_t pre);
-void gras_datadesc_cb_set_post(gras_datadesc_type_t *type,
- gras_datadesc_type_cb_void_t post);
-
-/******************************
- * Get stuff within datadescs *
- ******************************/
-char * gras_datadesc_get_name(gras_datadesc_type_t *ddt);
-int gras_datadesc_get_id(gras_datadesc_type_t *ddt);
-
-/********************************************************
- * Advanced data describing: callback persistent states *
- ********************************************************/
-
-void *
-gras_dd_cbps_pop (gras_dd_cbps_t *ps,
- const char *name,
- gras_datadesc_type_t **ddt);
-void
-gras_dd_cbps_push(gras_dd_cbps_t *ps,
- const char *name,
- void *data,
- gras_datadesc_type_t *ddt);
-void
-gras_dd_cbps_set (gras_dd_cbps_t *ps,
- const char *name,
- void *data,
- gras_datadesc_type_t *ddt);
-
-void *
-gras_dd_cbps_get (gras_dd_cbps_t *ps,
- const char *name,
- gras_datadesc_type_t **ddt);
-
-void
-gras_dd_cbps_block_begin(gras_dd_cbps_t *ps);
-void
-gras_dd_cbps_block_end(gras_dd_cbps_t *ps);
-
-
-
-
-/*******************************
- **** About data convertion ****
- *******************************/
-int gras_arch_selfid(void); /* ID of this arch */
-
-/****************************
- **** Parse C statements ****
- ****************************/
-gras_datadesc_type_t *
-gras_datadesc_parse(const char *name,
- const char *Cdefinition);
-#define GRAS_DEFINE_TYPE(name,def) \
- static const char * _gras_this_type_symbol_does_not_exist__##name=#def; def
-
-#define gras_datadesc_by_symbol(name) \
- (gras_datadesc_by_name(#name) ? \
- gras_datadesc_by_name(#name) : \
- gras_datadesc_parse(#name, \
- _gras_this_type_symbol_does_not_exist__##name) \
- )
-
-/*****************************
- **** NWS datadescription ****
- *****************************/
-
-/**
- * Basic types we can embeed in DataDescriptors.
- */
-typedef enum
- {CHAR_TYPE, DOUBLE_TYPE, FLOAT_TYPE, INT_TYPE, LONG_TYPE, SHORT_TYPE,
- UNSIGNED_INT_TYPE, UNSIGNED_LONG_TYPE, UNSIGNED_SHORT_TYPE, STRUCT_TYPE}
- DataTypes;
-#define SIMPLE_TYPE_COUNT 9
-
-/*! \brief Describe a collection of data.
- *
-** A description of a collection of #type# data. #repetitions# is used only
-** for arrays; it contains the number of elements. #offset# is used only for
-** struct members in host format; it contains the offset of the member from the
-** beginning of the struct, taking into account internal padding added by the
-** compiler for alignment purposes. #members#, #length#, and #tailPadding# are
-** used only for STRUCT_TYPE data; the #length#-long array #members# describes
-** the members of the nested struct, and #tailPadding# indicates how many
-** padding bytes the compiler adds to the end of the structure.
-*/
-
-typedef struct DataDescriptorStruct {
- DataTypes type;
- size_t repetitions;
- size_t offset;
- /*@null@*/ struct DataDescriptorStruct *members;
- size_t length;
- size_t tailPadding;
-} DataDescriptor;
-/** DataDescriptor for an array */
-#define SIMPLE_DATA(type,repetitions) \
- {type, repetitions, 0, NULL, 0, 0}
-/** DataDescriptor for an structure member */
-#define SIMPLE_MEMBER(type,repetitions,offset) \
- {type, repetitions, offset, NULL, 0, 0}
-/** DataDescriptor for padding bytes */
-#define PAD_BYTES(structType,lastMember,memberType,repetitions) \
- sizeof(structType) - offsetof(structType, lastMember) - \
- sizeof(memberType) * repetitions
-
-gras_error_t
-gras_datadesc_import_nws(const char *name,
- const DataDescriptor *desc,
- size_t howmany,
- gras_datadesc_type_t **dst);
-
-END_DECL
-
-#endif /* GRAS_DATADESC_H */
