1 /* ddt_new - creation/deletion of datatypes structs (private to this module)*/
3 /* Copyright (c) 2003-2009 The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "xbt/misc.h" /* min()/max() */
10 #include "gras/DataDesc/datadesc_private.h"
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_ddt_create, gras_ddt,
13 "Creating new datadescriptions");
16 static gras_dd_cat_field_t
17 gras_dd_find_field(gras_datadesc_type_t type, const char *field_name);
21 * gime that memory back, dude. I mean it.
23 void gras_ddt_freev(void *ddt)
25 gras_datadesc_type_t type = (gras_datadesc_type_t) ddt;
28 gras_datadesc_free(&type);
32 static gras_datadesc_type_t gras_ddt_new(const char *name)
34 gras_datadesc_type_t res;
36 XBT_IN1("(%s)", name);
37 res = xbt_new0(s_gras_datadesc_type_t, 1);
39 res->name = (char *) strdup(name);
40 res->name_len = strlen(name);
43 xbt_set_add(gras_datadesc_set_local, (xbt_set_elm_t) res, gras_ddt_freev);
48 /** @brief retrieve an existing message type from its name (or NULL if it does not exist). */
49 gras_datadesc_type_t gras_datadesc_by_name_or_null(const char *name)
52 gras_datadesc_type_t res = NULL;
55 res = gras_datadesc_by_name(name);
64 * Search the given datadesc (or raises an exception if it can't be found)
66 gras_datadesc_type_t gras_datadesc_by_name(const char *name)
69 gras_datadesc_type_t res = NULL;
70 volatile int found = 0;
73 (gras_datadesc_type_t) xbt_set_get_by_name(gras_datadesc_set_local,
77 if (e.category != not_found_error)
82 THROW1(not_found_error, 0, "No registred datatype of that name: %s",
89 * Retrieve a type from its code (or NULL if not found)
91 gras_datadesc_type_t gras_datadesc_by_id(long int code)
94 gras_datadesc_type_t res = NULL;
97 (gras_datadesc_type_t) xbt_set_get_by_id(gras_datadesc_set_local, code);
99 if (e.category != not_found_error)
108 * Create a new scalar and give a pointer to it
111 gras_datadesc_scalar(const char *name,
112 gras_ddt_scalar_type_t type,
113 enum e_gras_dd_scalar_encoding encoding)
116 gras_datadesc_type_t res;
120 res = gras_datadesc_by_name_or_null(name);
122 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_scalar,
123 "Redefinition of type %s does not match", name);
124 xbt_assert1(res->category.scalar_data.encoding == encoding,
125 "Redefinition of type %s does not match", name);
126 xbt_assert1(res->category.scalar_data.type == type,
127 "Redefinition of type %s does not match", name);
128 VERB1("Discarding redefinition of %s", name);
131 res = gras_ddt_new(name);
133 for (arch = 0; arch < gras_arch_count; arch++) {
134 res->size[arch] = gras_arches[arch].sizeofs[type];
135 res->alignment[arch] = gras_arches[arch].boundaries[type];
136 res->aligned_size[arch] =
137 ddt_aligned(res->size[arch], res->alignment[arch]);
140 res->category_code = e_gras_datadesc_type_cat_scalar;
141 res->category.scalar_data.encoding = encoding;
142 res->category.scalar_data.type = type;
149 /** Frees one struct or union field */
150 void gras_dd_cat_field_free(void *f)
152 gras_dd_cat_field_t field = *(gras_dd_cat_field_t *) f;
162 /** \brief Declare a new structure description */
163 gras_datadesc_type_t gras_datadesc_struct(const char *name)
166 gras_datadesc_type_t res;
169 XBT_IN1("(%s)", name);
170 res = gras_datadesc_by_name_or_null(name);
172 /* FIXME: Check that field redefinition matches */
173 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_struct,
174 "Redefinition of type %s does not match", name);
175 VERB1("Discarding redefinition of %s", name);
178 res = gras_ddt_new(name);
180 for (arch = 0; arch < gras_arch_count; arch++) {
182 res->alignment[arch] = 0;
183 res->aligned_size[arch] = 0;
185 res->category_code = e_gras_datadesc_type_cat_struct;
186 res->category.struct_data.fields =
187 xbt_dynar_new(sizeof(gras_dd_cat_field_t), gras_dd_cat_field_free);
193 /** \brief Append a new field to a structure description */
195 gras_datadesc_struct_append(gras_datadesc_type_t struct_type,
196 const char *name, gras_datadesc_type_t field_type)
199 gras_dd_cat_field_t field;
202 xbt_assert2(field_type,
203 "Cannot add the field '%s' into struct '%s': its type is NULL",
204 name, struct_type->name);
205 XBT_IN3("(%s %s.%s;)", field_type->name, struct_type->name, name);
206 if (struct_type->category.struct_data.closed) {
208 ("Ignoring request to add field to struct %s (closed. Redefinition?)",
213 xbt_assert1(field_type->size[GRAS_THISARCH] >= 0,
214 "Cannot add a dynamically sized field in structure %s",
217 field = xbt_new(s_gras_dd_cat_field_t, 1);
218 field->name = (char *) strdup(name);
220 DEBUG0("----------------");
221 DEBUG3("PRE s={size=%ld,align=%ld,asize=%ld}",
222 struct_type->size[GRAS_THISARCH],
223 struct_type->alignment[GRAS_THISARCH],
224 struct_type->aligned_size[GRAS_THISARCH]);
227 for (arch = 0; arch < gras_arch_count; arch++) {
228 field->offset[arch] = ddt_aligned(struct_type->size[arch],
229 field_type->alignment[arch]);
231 struct_type->size[arch] = field->offset[arch] + field_type->size[arch];
232 struct_type->alignment[arch] = max(struct_type->alignment[arch],
233 field_type->alignment[arch]);
234 struct_type->aligned_size[arch] = ddt_aligned(struct_type->size[arch],
235 struct_type->alignment
238 field->type = field_type;
242 xbt_dynar_push(struct_type->category.struct_data.fields, &field);
244 DEBUG3("Push a %s into %s at offset %ld.",
245 field_type->name, struct_type->name, field->offset[GRAS_THISARCH]);
246 DEBUG3(" f={size=%ld,align=%ld,asize=%ld}",
247 field_type->size[GRAS_THISARCH],
248 field_type->alignment[GRAS_THISARCH],
249 field_type->aligned_size[GRAS_THISARCH]);
250 DEBUG3(" s={size=%ld,align=%ld,asize=%ld}",
251 struct_type->size[GRAS_THISARCH],
252 struct_type->alignment[GRAS_THISARCH],
253 struct_type->aligned_size[GRAS_THISARCH]);
257 /** \brief Close a structure description
259 * No new field can be added afterward, and it is mandatory to close the structure before using it.
261 void gras_datadesc_struct_close(gras_datadesc_type_t struct_type)
265 struct_type->category.struct_data.closed = 1;
266 for (arch = 0; arch < gras_arch_count; arch++) {
267 struct_type->size[arch] = struct_type->aligned_size[arch];
269 DEBUG4("structure %s closed. size=%ld,align=%ld,asize=%ld",
271 struct_type->size[GRAS_THISARCH],
272 struct_type->alignment[GRAS_THISARCH],
273 struct_type->aligned_size[GRAS_THISARCH]);
277 * gras_datadesc_cycle_set:
279 * Tell GRAS that the pointers of the type described by ddt may present
280 * some loop, and that the cycle detection mechanism is needed.
282 * Note that setting this option when not needed have a rather bad effect
283 * on the performance (several times slower on big data).
285 void gras_datadesc_cycle_set(gras_datadesc_type_t ddt)
291 * gras_datadesc_cycle_unset:
293 * Tell GRAS that the pointers of the type described by ddt do not present
294 * any loop and that cycle detection mechanism are not needed.
297 void gras_datadesc_cycle_unset(gras_datadesc_type_t ddt)
302 /** \brief Declare a new union description */
304 gras_datadesc_union(const char *name, gras_datadesc_type_cb_int_t selector)
307 gras_datadesc_type_t res;
310 XBT_IN1("(%s)", name);
311 xbt_assert0(selector,
312 "Attempt to creat an union without field_count function");
314 res = gras_datadesc_by_name_or_null(name);
316 /* FIXME: Check that field redefinition matches */
317 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_union,
318 "Redefinition of type %s does not match", name);
319 xbt_assert1(res->category.union_data.selector == selector,
320 "Redefinition of type %s does not match", name);
321 VERB1("Discarding redefinition of %s", name);
325 res = gras_ddt_new(name);
327 for (arch = 0; arch < gras_arch_count; arch++) {
329 res->alignment[arch] = 0;
330 res->aligned_size[arch] = 0;
333 res->category_code = e_gras_datadesc_type_cat_union;
334 res->category.union_data.fields =
335 xbt_dynar_new(sizeof(gras_dd_cat_field_t *), gras_dd_cat_field_free);
336 res->category.union_data.selector = selector;
341 /** \brief Append a new field to an union description */
342 void gras_datadesc_union_append(gras_datadesc_type_t union_type,
344 gras_datadesc_type_t field_type)
347 gras_dd_cat_field_t field;
350 XBT_IN3("(%s %s.%s;)", field_type->name, union_type->name, name);
351 xbt_assert1(field_type->size[GRAS_THISARCH] >= 0,
352 "Cannot add a dynamically sized field in union %s",
355 if (union_type->category.union_data.closed) {
356 VERB1("Ignoring request to add field to union %s (closed)",
361 field = xbt_new0(s_gras_dd_cat_field_t, 1);
363 field->name = (char *) strdup(name);
364 field->type = field_type;
365 /* All offset are left to 0 in an union */
367 xbt_dynar_push(union_type->category.union_data.fields, &field);
369 for (arch = 0; arch < gras_arch_count; arch++) {
370 union_type->size[arch] = max(union_type->size[arch],
371 field_type->size[arch]);
372 union_type->alignment[arch] = max(union_type->alignment[arch],
373 field_type->alignment[arch]);
374 union_type->aligned_size[arch] = ddt_aligned(union_type->size[arch],
375 union_type->alignment[arch]);
380 /** \brief Close an union description
382 * No new field can be added afterward, and it is mandatory to close the union before using it.
384 void gras_datadesc_union_close(gras_datadesc_type_t union_type)
386 union_type->category.union_data.closed = 1;
389 /** \brief Copy a type under another name
391 * This may reveal useful to circumvent parsing macro limitations
394 gras_datadesc_copy(const char *name, gras_datadesc_type_t copied)
397 gras_datadesc_type_t res = gras_ddt_new(name);
398 char *name_cpy = res->name;
400 memcpy(res, copied, sizeof(s_gras_datadesc_type_t));
401 res->name = name_cpy;
405 /** \brief Declare a new type being a reference to the one passed in arg */
407 gras_datadesc_ref(const char *name, gras_datadesc_type_t referenced_type)
410 gras_datadesc_type_t res;
411 gras_datadesc_type_t pointer_type = gras_datadesc_by_name("data pointer");
414 XBT_IN1("(%s)", name);
415 res = gras_datadesc_by_name_or_null(name);
417 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_ref,
418 "Redefinition of %s does not match", name);
419 xbt_assert1(res->category.ref_data.type == referenced_type,
420 "Redefinition of %s does not match", name);
421 xbt_assert1(res->category.ref_data.selector == NULL,
422 "Redefinition of %s does not match", name);
423 VERB1("Discarding redefinition of %s", name);
427 res = gras_ddt_new(name);
429 xbt_assert0(pointer_type, "Cannot get the description of data pointer");
431 for (arch = 0; arch < gras_arch_count; arch++) {
432 res->size[arch] = pointer_type->size[arch];
433 res->alignment[arch] = pointer_type->alignment[arch];
434 res->aligned_size[arch] = pointer_type->aligned_size[arch];
437 res->category_code = e_gras_datadesc_type_cat_ref;
438 res->category.ref_data.type = referenced_type;
439 res->category.ref_data.selector = NULL;
444 /** \brief Declare a new type being a generic reference.
446 * The callback passed in argument is to be used to select which type is currently used.
447 * So, when GRAS wants to send a generic reference, it passes the current data to the selector
448 * callback and expects it to return the type description to use.
451 gras_datadesc_ref_generic(const char *name, gras_datadesc_selector_t selector)
454 gras_datadesc_type_t res;
455 gras_datadesc_type_t pointer_type = gras_datadesc_by_name("data pointer");
458 XBT_IN1("(%s)", name);
459 res = gras_datadesc_by_name_or_null(name);
462 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_ref,
463 "Redefinition of type %s does not match", name);
464 xbt_assert1(res->category.ref_data.type == NULL,
465 "Redefinition of type %s does not match", name);
466 xbt_assert1(res->category.ref_data.selector == selector,
467 "Redefinition of type %s does not match", name);
468 VERB1("Discarding redefinition of %s", name);
471 res = gras_ddt_new(name);
473 xbt_assert0(pointer_type, "Cannot get the description of data pointer");
475 for (arch = 0; arch < gras_arch_count; arch++) {
476 res->size[arch] = pointer_type->size[arch];
477 res->alignment[arch] = pointer_type->alignment[arch];
478 res->aligned_size[arch] = pointer_type->aligned_size[arch];
481 res->category_code = e_gras_datadesc_type_cat_ref;
483 res->category.ref_data.type = NULL;
484 res->category.ref_data.selector = selector;
489 /** \brief Declare a new type being an array of fixed size and content */
491 gras_datadesc_array_fixed(const char *name,
492 gras_datadesc_type_t element_type,
496 gras_datadesc_type_t res;
499 XBT_IN1("(%s)", name);
500 res = gras_datadesc_by_name_or_null(name);
502 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_array,
503 "Redefinition of type %s does not match", name);
505 if (res->category.array_data.type != element_type) {
506 ERROR1("Redefinition of type %s does not match: array elements differ",
508 gras_datadesc_type_dump(res->category.array_data.type);
509 gras_datadesc_type_dump(element_type);
512 xbt_assert1(res->category.array_data.fixed_size == fixed_size,
513 "Redefinition of type %s does not match", name);
514 xbt_assert1(res->category.array_data.dynamic_size == NULL,
515 "Redefinition of type %s does not match", name);
516 VERB1("Discarding redefinition of %s", name);
520 res = gras_ddt_new(name);
522 xbt_assert1(fixed_size >= 0, "'%s' is a array of negative fixed size",
524 for (arch = 0; arch < gras_arch_count; arch++) {
525 res->size[arch] = fixed_size * element_type->aligned_size[arch];
526 res->alignment[arch] = element_type->alignment[arch];
527 res->aligned_size[arch] = res->size[arch];
530 res->category_code = e_gras_datadesc_type_cat_array;
532 res->category.array_data.type = element_type;
533 res->category.array_data.fixed_size = fixed_size;
534 res->category.array_data.dynamic_size = NULL;
539 /** \brief Declare a new type being an array of fixed size, but accepting several content types. */
540 gras_datadesc_type_t gras_datadesc_array_dyn(const char *name,
543 gras_datadesc_type_cb_int_t
547 gras_datadesc_type_t res;
550 XBT_IN1("(%s)", name);
551 xbt_assert1(dynamic_size,
552 "'%s' is a dynamic array without size discriminant", name);
554 res = gras_datadesc_by_name_or_null(name);
556 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_array,
557 "Redefinition of type %s does not match", name);
558 xbt_assert1(res->category.array_data.type == element_type,
559 "Redefinition of type %s does not match", name);
560 xbt_assert1(res->category.array_data.fixed_size == -1,
561 "Redefinition of type %s does not match", name);
562 xbt_assert1(res->category.array_data.dynamic_size == dynamic_size,
563 "Redefinition of type %s does not match", name);
564 VERB1("Discarding redefinition of %s", name);
569 res = gras_ddt_new(name);
571 for (arch = 0; arch < gras_arch_count; arch++) {
572 res->size[arch] = 0; /* make sure it indicates "dynamic" */
573 res->alignment[arch] = element_type->alignment[arch];
574 res->aligned_size[arch] = 0; /*FIXME: That was so in GS, but looks stupid */
577 res->category_code = e_gras_datadesc_type_cat_array;
579 res->category.array_data.type = element_type;
580 res->category.array_data.fixed_size = -1;
581 res->category.array_data.dynamic_size = dynamic_size;
586 /** \brief Declare a new type being an array which size can be found with \ref gras_cbps_i_pop
588 * Most of the time, you want to include a reference in your structure which
589 * is a pointer to a dynamic array whose size is fixed by another field of
592 * This case pops up so often that this function was created to take care of
593 * this case. It creates a dynamic array type whose size is poped from the
594 * current cbps, and then create a reference to it.
596 * The name of the created datatype will be the name of the element type, with
597 * '[]*' appended to it.
599 * Then to use it, you just have to make sure that your structure pre-callback
600 * does push the size of the array in the cbps (using #gras_cbps_i_push), and
603 * But be remember that this is a stack. If you have two different pop_arr, you
604 * should push the second one first, so that the first one is on the top of the
605 * list when the first field gets transfered.
609 gras_datadesc_ref_pop_arr(gras_datadesc_type_t element_type)
612 gras_datadesc_type_t res,ddt2;
613 char *name = (char *) xbt_malloc(strlen(element_type->name) + 4);
615 sprintf(name, "%s[]", element_type->name);
616 /* Make sure we are not trying to redefine a ddt with the same name */
617 ddt2 = gras_datadesc_by_name_or_null(name);
621 name=bprintf("%s[]_%d",element_type->name,cpt++);
622 ddt2=gras_datadesc_by_name_or_null(name);
625 res = gras_datadesc_array_dyn(name, element_type, gras_datadesc_cb_pop);
627 sprintf(name, "%s[]*", element_type->name);
629 ddt2 = gras_datadesc_by_name_or_null(name);
632 name=bprintf("%s[]*_%d",element_type->name,cpt++);
633 ddt2=gras_datadesc_by_name_or_null(name);
636 res = gras_datadesc_ref(name, res);
645 *## Constructor of container datatypes
649 static void gras_datadesc_dynar_cb(gras_datadesc_type_t typedesc,
650 gras_cbps_t vars, void *data)
652 gras_datadesc_type_t subtype;
653 xbt_dynar_t dynar = (xbt_dynar_t) data;
655 memcpy(&dynar->free_f, &typedesc->extra, sizeof(dynar->free_f));
657 /* search for the elemsize in what we have. If elements are "int", typedesc got is "int[]*" */
658 subtype = gras_dd_find_field(typedesc, "data")->type;
660 /* this is now a ref to array of what we're looking for */
661 subtype = subtype->category.ref_data.type;
662 subtype = subtype->category.array_data.type;
664 DEBUG1("subtype is %s", subtype->name);
666 dynar->elmsize = subtype->size[GRAS_THISARCH];
667 dynar->size = dynar->used;
671 /** \brief Declare a new type being a dynar in which each elements are of the given type
673 * The type gets registered under the name "dynar(%s)_s", where %s is the name of the subtype.
674 * For example, a dynar of doubles will be called "dynar(double)_s" and a dynar of dynar of
675 * strings will be called "dynar(dynar(string)_s)_s".
677 * \param elm_t: the datadesc of the elements
678 * \param free_func: the function to use to free the elements when the dynar gets freed
681 gras_datadesc_dynar(gras_datadesc_type_t elm_t, void_f_pvoid_t free_func)
685 gras_datadesc_type_t res;
687 asprintf(&buffname, "s_xbt_dynar_of_%s", elm_t->name);
689 res = gras_datadesc_struct(buffname);
691 gras_datadesc_struct_append(res, "size",
692 gras_datadesc_by_name("unsigned long int"));
694 gras_datadesc_struct_append(res, "used",
695 gras_datadesc_by_name("unsigned long int"));
697 gras_datadesc_struct_append(res, "elmsize",
698 gras_datadesc_by_name("unsigned long int"));
700 gras_datadesc_struct_append(res, "data", gras_datadesc_ref_pop_arr(elm_t));
702 gras_datadesc_struct_append(res, "free_f",
703 gras_datadesc_by_name("function pointer"));
704 memcpy(res->extra, &free_func, sizeof(free_func));
706 gras_datadesc_struct_append(res, "mutex",
707 gras_datadesc_by_name("data pointer"));
709 gras_datadesc_struct_close(res);
711 gras_datadesc_cb_field_push(res, "used");
712 gras_datadesc_cb_recv(res, &gras_datadesc_dynar_cb);
714 /* build a ref to it */
716 asprintf(&buffname, "xbt_dynar_of_%s", elm_t->name);
717 res = gras_datadesc_ref(buffname, res);
722 #include "xbt/matrix.h"
723 static void gras_datadesc_matrix_cb(gras_datadesc_type_t typedesc,
724 gras_cbps_t vars, void *data)
726 gras_datadesc_type_t subtype;
727 xbt_matrix_t matrix = (xbt_matrix_t) data;
729 memcpy(&matrix->free_f, &typedesc->extra, sizeof(matrix->free_f));
731 /* search for the elemsize in what we have. If elements are "int", typedesc got is "int[]*" */
732 subtype = gras_dd_find_field(typedesc, "data")->type;
734 /* this is now a ref to array of what we're looking for */
735 subtype = subtype->category.ref_data.type;
736 subtype = subtype->category.array_data.type;
738 DEBUG1("subtype is %s", subtype->name);
740 matrix->elmsize = subtype->size[GRAS_THISARCH];
744 gras_datadesc_matrix(gras_datadesc_type_t elm_t, void_f_pvoid_t const free_f)
747 gras_datadesc_type_t res;
749 asprintf(&buffname, "s_xbt_matrix_t(%s)", elm_t->name);
750 res = gras_datadesc_struct(buffname);
752 gras_datadesc_struct_append(res, "lines",
753 gras_datadesc_by_name("unsigned int"));
754 gras_datadesc_struct_append(res, "rows",
755 gras_datadesc_by_name("unsigned int"));
757 gras_datadesc_struct_append(res, "elmsize",
758 gras_datadesc_by_name("unsigned long int"));
760 gras_datadesc_struct_append(res, "data", gras_datadesc_ref_pop_arr(elm_t));
761 gras_datadesc_struct_append(res, "free_f",
762 gras_datadesc_by_name("function pointer"));
763 gras_datadesc_struct_close(res);
765 gras_datadesc_cb_field_push(res, "lines");
766 gras_datadesc_cb_field_push_multiplier(res, "rows");
768 gras_datadesc_cb_recv(res, &gras_datadesc_matrix_cb);
769 memcpy(res->extra, &free_f, sizeof(free_f));
771 /* build a ref to it */
773 asprintf(&buffname, "xbt_matrix_t(%s)", elm_t->name);
774 res = gras_datadesc_ref(buffname, res);
780 gras_datadesc_import_nws(const char *name,
781 const DataDescriptor * desc, unsigned long howmany)
787 * (useful to push the sizes of the upcoming arrays, for example)
789 void gras_datadesc_cb_send(gras_datadesc_type_t type,
790 gras_datadesc_type_cb_void_t send)
796 * (useful to put the function pointers to the rigth value, for example)
798 void gras_datadesc_cb_recv(gras_datadesc_type_t type,
799 gras_datadesc_type_cb_void_t recv)
805 * gras_dd_find_field:
807 * Returns the type descriptor of the given field. Abort on error.
809 static gras_dd_cat_field_t
810 gras_dd_find_field(gras_datadesc_type_t type, const char *field_name)
812 xbt_dynar_t field_array;
814 gras_dd_cat_field_t field = NULL;
815 unsigned int field_num;
817 if (type->category_code == e_gras_datadesc_type_cat_union) {
818 field_array = type->category.union_data.fields;
819 } else if (type->category_code == e_gras_datadesc_type_cat_struct) {
820 field_array = type->category.struct_data.fields;
822 ERROR2("%s (%p) is not a struct nor an union. There is no field.",
823 type->name, (void *) type);
826 xbt_dynar_foreach(field_array, field_num, field) {
827 if (!strcmp(field_name, field->name)) {
831 ERROR2("No field named '%s' in '%s'", field_name, type->name);
837 * The given datadesc must be a struct or union (abort if not).
838 * (useful to push the sizes of the upcoming arrays, for example)
840 void gras_datadesc_cb_field_send(gras_datadesc_type_t type,
841 const char *field_name,
842 gras_datadesc_type_cb_void_t send)
845 gras_dd_cat_field_t field = gras_dd_find_field(type, field_name);
851 * The value, which must be an int, unsigned int, long int or unsigned long int
852 * is pushed to the stacks of sizes and can then be retrieved with
853 * \ref gras_datadesc_ref_pop_arr or directly with \ref gras_cbps_i_pop.
855 void gras_datadesc_cb_field_push(gras_datadesc_type_t type,
856 const char *field_name)
859 gras_dd_cat_field_t field = gras_dd_find_field(type, field_name);
860 gras_datadesc_type_t sub_type = field->type;
862 DEBUG3("add a PUSHy cb to '%s' field (type '%s') of '%s'",
863 field_name, sub_type->name, type->name);
864 if (!strcmp("int", sub_type->name)) {
865 field->send = gras_datadesc_cb_push_int;
866 } else if (!strcmp("unsigned int", sub_type->name)) {
867 field->send = gras_datadesc_cb_push_uint;
868 } else if (!strcmp("long int", sub_type->name)) {
869 field->send = gras_datadesc_cb_push_lint;
870 } else if (!strcmp("unsigned long int", sub_type->name)) {
871 field->send = gras_datadesc_cb_push_ulint;
874 ("Field %s is not an int, unsigned int, long int neither unsigned long int",
881 * Any previously pushed value is poped and the field value is multiplied to
882 * it. The result is then pushed back into the stack of sizes. It can then be
883 * retrieved with \ref gras_datadesc_ref_pop_arr or directly with \ref
886 * The field must be an int, unsigned int, long int or unsigned long int.
888 void gras_datadesc_cb_field_push_multiplier(gras_datadesc_type_t type,
889 const char *field_name)
892 gras_dd_cat_field_t field = gras_dd_find_field(type, field_name);
893 gras_datadesc_type_t sub_type = field->type;
895 DEBUG3("add a MPUSHy cb to '%s' field (type '%s') of '%s'",
896 field_name, sub_type->name, type->name);
897 if (!strcmp("int", sub_type->name)) {
898 field->send = gras_datadesc_cb_push_int_mult;
899 } else if (!strcmp("unsigned int", sub_type->name)) {
900 field->send = gras_datadesc_cb_push_uint_mult;
901 } else if (!strcmp("long int", sub_type->name)) {
902 field->send = gras_datadesc_cb_push_lint_mult;
903 } else if (!strcmp("unsigned long int", sub_type->name)) {
904 field->send = gras_datadesc_cb_push_ulint_mult;
907 ("Field %s is not an int, unsigned int, long int neither unsigned long int",
914 * The given datadesc must be a struct or union (abort if not).
915 * (useful to put the function pointers to the right value, for example)
917 void gras_datadesc_cb_field_recv(gras_datadesc_type_t type,
918 const char *field_name,
919 gras_datadesc_type_cb_void_t recv)
922 gras_dd_cat_field_t field = gras_dd_find_field(type, field_name);
927 * Free a datadesc. Should only be called at xbt_exit.
929 void gras_datadesc_free(gras_datadesc_type_t * type)
932 DEBUG1("Let's free ddt %s", (*type)->name);
934 switch ((*type)->category_code) {
935 case e_gras_datadesc_type_cat_scalar:
936 case e_gras_datadesc_type_cat_ref:
937 case e_gras_datadesc_type_cat_array:
938 /* nothing to free in there */
941 case e_gras_datadesc_type_cat_struct:
942 xbt_dynar_free(&((*type)->category.struct_data.fields));
945 case e_gras_datadesc_type_cat_union:
946 xbt_dynar_free(&((*type)->category.union_data.fields));
950 /* datadesc was invalid. Killing it is like euthanasy, I guess */
959 * gras_datadesc_type_cmp:
961 * Compares two datadesc types with the same semantic than strcmp.
963 * This comparison does not take the set headers into account (name and ID),
964 * but only the payload (actual type description).
966 int gras_datadesc_type_cmp(const gras_datadesc_type_t d1,
967 const gras_datadesc_type_t d2)
971 gras_dd_cat_field_t field1, field2;
972 gras_datadesc_type_t field_desc_1, field_desc_2;
975 return 0; /* easy optimization */
978 DEBUG0("ddt_cmp: !d1 && d2 => 1");
982 DEBUG0("ddt_cmp: !d1 && !d2 => 0");
986 DEBUG0("ddt_cmp: d1 && !d2 => -1");
990 for (cpt = 0; cpt < gras_arch_count; cpt++) {
991 if (d1->size[cpt] != d2->size[cpt]) {
992 DEBUG5("ddt_cmp: %s->size=%ld != %s->size=%ld (on %s)",
993 d1->name, d1->size[cpt], d2->name, d2->size[cpt],
994 gras_arches[cpt].name);
995 return d1->size[cpt] > d2->size[cpt] ? 1 : -1;
998 if (d1->alignment[cpt] != d2->alignment[cpt]) {
999 DEBUG5("ddt_cmp: %s->alignment=%ld != %s->alignment=%ld (on %s)",
1000 d1->name, d1->alignment[cpt], d2->name, d2->alignment[cpt],
1001 gras_arches[cpt].name);
1002 return d1->alignment[cpt] > d2->alignment[cpt] ? 1 : -1;
1005 if (d1->aligned_size[cpt] != d2->aligned_size[cpt]) {
1007 ("ddt_cmp: %s->aligned_size=%ld != %s->aligned_size=%ld (on %s)",
1008 d1->name, d1->aligned_size[cpt], d2->name, d2->aligned_size[cpt],
1009 gras_arches[cpt].name);
1010 return d1->aligned_size[cpt] > d2->aligned_size[cpt] ? 1 : -1;
1014 if (d1->category_code != d2->category_code) {
1015 DEBUG4("ddt_cmp: %s->cat=%s != %s->cat=%s",
1016 d1->name, gras_datadesc_cat_names[d1->category_code],
1017 d2->name, gras_datadesc_cat_names[d2->category_code]);
1018 return d1->category_code > d2->category_code ? 1 : -1;
1021 if (d1->send != d2->send) {
1022 DEBUG4("ddt_cmp: %s->send=%p != %s->send=%p",
1023 d1->name, (void *) d1->send, d2->name, (void *) d2->send);
1024 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1027 if (d1->recv != d2->recv) {
1028 DEBUG4("ddt_cmp: %s->recv=%p != %s->recv=%p",
1029 d1->name, (void *) d1->recv, d2->name, (void *) d2->recv);
1030 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1033 switch (d1->category_code) {
1034 case e_gras_datadesc_type_cat_scalar:
1035 if (d1->category.scalar_data.encoding !=
1036 d2->category.scalar_data.encoding)
1037 return d1->category.scalar_data.encoding >
1038 d2->category.scalar_data.encoding ? 1 : -1;
1041 case e_gras_datadesc_type_cat_struct:
1042 if (xbt_dynar_length(d1->category.struct_data.fields) !=
1043 xbt_dynar_length(d2->category.struct_data.fields)) {
1044 DEBUG4("ddt_cmp: %s (having %lu fields) != %s (having %lu fields)",
1045 d1->name, xbt_dynar_length(d1->category.struct_data.fields),
1046 d2->name, xbt_dynar_length(d2->category.struct_data.fields));
1048 return xbt_dynar_length(d1->category.struct_data.fields) >
1049 xbt_dynar_length(d2->category.struct_data.fields) ? 1 : -1;
1051 xbt_dynar_foreach(d1->category.struct_data.fields, cpt, field1) {
1054 xbt_dynar_get_as(d2->category.struct_data.fields, cpt,
1055 gras_dd_cat_field_t);
1056 field_desc_1 = field1->type;
1057 field_desc_2 = field2->type;
1058 ret = gras_datadesc_type_cmp(field_desc_1, field_desc_2);
1060 DEBUG6("%s->field[%d]=%s != %s->field[%d]=%s",
1061 d1->name, cpt, field1->name, d2->name, cpt, field2->name);
1068 case e_gras_datadesc_type_cat_union:
1069 if (d1->category.union_data.selector != d2->category.union_data.selector)
1070 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1072 if (xbt_dynar_length(d1->category.union_data.fields) !=
1073 xbt_dynar_length(d2->category.union_data.fields))
1074 return xbt_dynar_length(d1->category.union_data.fields) >
1075 xbt_dynar_length(d2->category.union_data.fields) ? 1 : -1;
1077 xbt_dynar_foreach(d1->category.union_data.fields, cpt, field1) {
1080 xbt_dynar_get_as(d2->category.union_data.fields, cpt,
1081 gras_dd_cat_field_t);
1082 field_desc_1 = field1->type;
1083 field_desc_2 = field2->type;
1084 ret = gras_datadesc_type_cmp(field_desc_1, field_desc_2);
1092 case e_gras_datadesc_type_cat_ref:
1093 if (d1->category.ref_data.selector != d2->category.ref_data.selector)
1094 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1096 if (d1->category.ref_data.type != d2->category.ref_data.type)
1097 return d1->category.ref_data.type > d2->category.ref_data.type ? 1 : -1;
1100 case e_gras_datadesc_type_cat_array:
1101 if (d1->category.array_data.type != d2->category.array_data.type)
1102 return d1->category.array_data.type >
1103 d2->category.array_data.type ? 1 : -1;
1105 if (d1->category.array_data.fixed_size !=
1106 d2->category.array_data.fixed_size)
1107 return d1->category.array_data.fixed_size >
1108 d2->category.array_data.fixed_size ? 1 : -1;
1110 if (d1->category.array_data.dynamic_size !=
1111 d2->category.array_data.dynamic_size)
1112 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1117 /* two stupidly created ddt are equally stupid ;) */