3 /* datadesc - describing the data to exchange */
5 /* module's private interface masked even to other parts of GRAS. */
7 /* Copyright (c) 2004 Olivier Aumage, Martin Quinson. All rights reserved. */
9 /* This program is free software; you can redistribute it and/or modify it
10 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #ifndef GRAS_DATADESC_PRIVATE_H
13 #define GRAS_DATADESC_PRIVATE_H
15 #include "xbt/sysdep.h"
17 #include "xbt/error.h"
18 #include "xbt/dynar.h"
22 #include "gras_config.h" /* GRAS_THISARCH */
24 #include "gras/transport.h" /* socket handling */
26 #include "gras_modinter.h" /* module init/exit */
27 #include "gras/datadesc.h" /* rest of module public interface */
29 #include "gras/DataDesc/datadesc_interface.h" /* semi-public API */
34 * Align the data v on the boundary a.
36 #define aligned(v, a) (((v) + (a - 1)) & ~(a - 1))
38 extern xbt_set_t gras_datadesc_set_local;
39 void gras_ddt_freev(void *ddt);
40 /*******************************************
41 * Descriptions of all known architectures *
42 *******************************************/
44 #define gras_arch_count 6
46 gras_ddt_scalar_char = 0,
47 gras_ddt_scalar_short = 1,
48 gras_ddt_scalar_int = 2,
49 gras_ddt_scalar_long = 3,
50 gras_ddt_scalar_long_long = 4,
52 gras_ddt_scalar_pdata = 5,
53 gras_ddt_scalar_pfunc = 6,
55 gras_ddt_scalar_float = 7,
56 gras_ddt_scalar_double = 8
57 } gras_ddt_scalar_type_t;
64 int sizeofs[9]; /* char,short,int,long,long_long,
67 int boundaries[9]; /* idem */
70 extern const gras_arch_desc_t gras_arches[gras_arch_count];
71 extern const char *gras_datadesc_cat_names[9];
73 /**********************************************************/
74 /* Actual definitions of the stuff in the type descriptor */
75 /**********************************************************/
78 * e_gras_datadesc_type_category:
80 * Defines all possible type categories.
82 typedef enum e_gras_datadesc_type_category {
84 /* if you edit this, also fix gras_datadesc_cat_names in ddt_exchange.c */
86 e_gras_datadesc_type_cat_undefined = 0,
88 e_gras_datadesc_type_cat_scalar = 1,
89 e_gras_datadesc_type_cat_struct = 2,
90 e_gras_datadesc_type_cat_union = 3,
91 e_gras_datadesc_type_cat_ref = 4, /* ref to an uniq element */
92 e_gras_datadesc_type_cat_array = 5,
93 e_gras_datadesc_type_cat_ignored = 6,
95 e_gras_datadesc_type_cat_invalid = 7
96 } gras_datadesc_type_category_t;
98 /*------------------------------------------------*/
99 /* definitions of specific data for each category */
100 /*------------------------------------------------*/
102 * s_gras_dd_cat_field:
104 * Fields of struct and union
106 typedef struct s_gras_dd_cat_field {
109 long int offset[gras_arch_count];
110 gras_datadesc_type_t type;
112 gras_datadesc_type_cb_void_t pre;
113 gras_datadesc_type_cb_void_t post;
115 } s_gras_dd_cat_field_t,*gras_dd_cat_field_t;
117 void gras_dd_cat_field_free(void *f);
120 * gras_dd_cat_scalar_t:
122 * Specific fields of a scalar
124 enum e_gras_dd_scalar_encoding {
125 e_gras_dd_scalar_encoding_undefined = 0,
127 e_gras_dd_scalar_encoding_uint,
128 e_gras_dd_scalar_encoding_sint,
129 e_gras_dd_scalar_encoding_float,
131 e_gras_dd_scalar_encoding_invalid
133 typedef struct s_gras_dd_cat_scalar {
134 enum e_gras_dd_scalar_encoding encoding;
135 gras_ddt_scalar_type_t type; /* to check easily that redefinition matches*/
136 } gras_dd_cat_scalar_t;
139 * gras_dd_cat_struct_t:
141 * Specific fields of a struct
143 typedef struct s_gras_dd_cat_struct {
144 xbt_dynar_t fields; /* elm type = gras_dd_cat_field_t */
145 int closed; /* gras_datadesc_declare_struct_close() was called */
146 } gras_dd_cat_struct_t;
149 * gras_dd_cat_union_t:
151 * Specific fields of a union
153 typedef struct s_gras_dd_cat_union {
154 gras_datadesc_type_cb_int_t selector;
155 xbt_dynar_t fields; /* elm type = gras_dd_cat_field_t */
156 int closed; /* gras_datadesc_declare_union_close() was called */
157 } gras_dd_cat_union_t;
162 * Specific fields of a reference
164 typedef struct s_gras_dd_cat_ref {
165 gras_datadesc_type_t type;
167 /* callback used to return the referenced type number */
168 gras_datadesc_selector_t selector;
173 * gras_dd_cat_array_t:
175 * Specific fields of an array
177 typedef struct s_gras_dd_cat_array {
178 gras_datadesc_type_t type;
180 /* element_count == 0 means dynamically defined */
181 unsigned long int fixed_size;
183 /* callback used to return the dynamic length */
184 gras_datadesc_type_cb_int_t dynamic_size;
186 } gras_dd_cat_array_t;
189 * gras_dd_cat_ignored_t:
191 * Specific fields of an ignored field
193 typedef struct s_gras_dd_cat_ignored {
195 void_f_pvoid_t *free_func;
196 } gras_dd_cat_ignored_t;
200 * u_gras_datadesc_category:
202 * Specific data to each possible category
204 union u_gras_datadesc_category {
205 void *undefined_data;
206 gras_dd_cat_scalar_t scalar_data;
207 gras_dd_cat_struct_t struct_data;
208 gras_dd_cat_union_t union_data;
209 gras_dd_cat_ref_t ref_data;
210 gras_dd_cat_array_t array_data;
211 gras_dd_cat_ignored_t ignored_data;
215 /****************************************/
216 /* The holy grail: type descriptor type */
217 /****************************************/
219 * s_gras_datadesc_type:
223 typedef struct s_gras_datadesc_type {
224 /* headers for the data set */
227 unsigned int name_len;
230 unsigned long int size[gras_arch_count];
232 unsigned long int alignment[gras_arch_count];
233 unsigned long int aligned_size[gras_arch_count];
235 enum e_gras_datadesc_type_category category_code;
236 union u_gras_datadesc_category category;
238 gras_datadesc_type_cb_void_t send;
239 gras_datadesc_type_cb_void_t recv;
241 int cycle; /* true if the datatype may contain cycle */
242 } s_gras_datadesc_type_t;
244 /***************************
245 * constructor/desctructor *
246 ***************************/
247 void gras_datadesc_free(gras_datadesc_type_t *type);
250 gras_datadesc_scalar(const char *name,
251 gras_ddt_scalar_type_t type,
252 enum e_gras_dd_scalar_encoding encoding);
254 /****************************************************
255 * Callback persistant state constructor/destructor *
256 ****************************************************/
257 gras_cbps_t gras_cbps_new(void);
258 void gras_cbps_free(gras_cbps_t *state);
264 gras_dd_convert_elm(gras_datadesc_type_t type, int count,
266 void *src, void *dst);
268 #endif /* GRAS_DATADESC_PRIVATE_H */