BEGIN_DECL
+
+/* datadesc */
+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);
+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);
+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_error_t
+gras_datadesc_parse(const char *name,
+ const char *Cdefinition,
+ gras_datadesc_type_t **dst);
+#define GRAS_DEFINE_TYPE(name,def) \
+ static const char * _gras_this_type_symbol_does_not_exist__##name=#def; def
+
+/*#define gras_type_symbol_parse(name) \
+ _gras_datadesc_parse(_gras_this_datadesc_type_symbol_does_not_exist__##name)
+*/
+#define gras_datadesc_by_symbol(name) \
+ (bag->bag_ops->get_type_by_name(bag, NULL, #name) ? \
+ bag->bag_ops->get_type_by_name(bag, NULL, #name) : \
+ gras_datadesc_parse(name) \
+ )
+
+/*****************************
+ **** NWS datadescription ****
+ *****************************/
+
/**
* Basic types we can embeed in DataDescriptors.
*/
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 */
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