3 /* ddt_new - creation/deletion of datatypes structs (private to this module)*/
5 /* Copyright (c) 2003-2009 The SimGrid Team. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "xbt/misc.h" /* min()/max() */
12 #include "gras/DataDesc/datadesc_private.h"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_ddt_create, gras_ddt,
15 "Creating new datadescriptions");
18 static gras_dd_cat_field_t
19 gras_dd_find_field(gras_datadesc_type_t type, const char *field_name);
23 * gime that memory back, dude. I mean it.
25 void gras_ddt_freev(void *ddt)
27 gras_datadesc_type_t type = (gras_datadesc_type_t) ddt;
30 gras_datadesc_free(&type);
34 static gras_datadesc_type_t gras_ddt_new(const char *name)
36 gras_datadesc_type_t res;
38 XBT_IN1("(%s)", name);
39 res = xbt_new0(s_gras_datadesc_type_t, 1);
41 res->name = (char *) strdup(name);
42 res->name_len = strlen(name);
45 xbt_set_add(gras_datadesc_set_local, (xbt_set_elm_t) res, gras_ddt_freev);
50 /** @brief retrieve an existing message type from its name (or NULL if it does not exist). */
51 gras_datadesc_type_t gras_datadesc_by_name_or_null(const char *name)
54 gras_datadesc_type_t res = NULL;
57 res = gras_datadesc_by_name(name);
66 * Search the given datadesc (or raises an exception if it can't be found)
68 gras_datadesc_type_t gras_datadesc_by_name(const char *name)
71 gras_datadesc_type_t res = NULL;
72 volatile int found = 0;
75 (gras_datadesc_type_t) xbt_set_get_by_name(gras_datadesc_set_local,
79 if (e.category != not_found_error)
84 THROW1(not_found_error, 0, "No registred datatype of that name: %s",
91 * Retrieve a type from its code (or NULL if not found)
93 gras_datadesc_type_t gras_datadesc_by_id(long int code)
96 gras_datadesc_type_t res = NULL;
99 (gras_datadesc_type_t) xbt_set_get_by_id(gras_datadesc_set_local, code);
101 if (e.category != not_found_error)
110 * Create a new scalar and give a pointer to it
113 gras_datadesc_scalar(const char *name,
114 gras_ddt_scalar_type_t type,
115 enum e_gras_dd_scalar_encoding encoding)
118 gras_datadesc_type_t res;
122 res = gras_datadesc_by_name_or_null(name);
124 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_scalar,
125 "Redefinition of type %s does not match", name);
126 xbt_assert1(res->category.scalar_data.encoding == encoding,
127 "Redefinition of type %s does not match", name);
128 xbt_assert1(res->category.scalar_data.type == type,
129 "Redefinition of type %s does not match", name);
130 VERB1("Discarding redefinition of %s", name);
133 res = gras_ddt_new(name);
135 for (arch = 0; arch < gras_arch_count; arch++) {
136 res->size[arch] = gras_arches[arch].sizeofs[type];
137 res->alignment[arch] = gras_arches[arch].boundaries[type];
138 res->aligned_size[arch] =
139 ddt_aligned(res->size[arch], res->alignment[arch]);
142 res->category_code = e_gras_datadesc_type_cat_scalar;
143 res->category.scalar_data.encoding = encoding;
144 res->category.scalar_data.type = type;
151 /** Frees one struct or union field */
152 void gras_dd_cat_field_free(void *f)
154 gras_dd_cat_field_t field = *(gras_dd_cat_field_t *) f;
164 /** \brief Declare a new structure description */
165 gras_datadesc_type_t gras_datadesc_struct(const char *name)
168 gras_datadesc_type_t res;
171 XBT_IN1("(%s)", name);
172 res = gras_datadesc_by_name_or_null(name);
174 /* FIXME: Check that field redefinition matches */
175 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_struct,
176 "Redefinition of type %s does not match", name);
177 VERB1("Discarding redefinition of %s", name);
180 res = gras_ddt_new(name);
182 for (arch = 0; arch < gras_arch_count; arch++) {
184 res->alignment[arch] = 0;
185 res->aligned_size[arch] = 0;
187 res->category_code = e_gras_datadesc_type_cat_struct;
188 res->category.struct_data.fields =
189 xbt_dynar_new(sizeof(gras_dd_cat_field_t), gras_dd_cat_field_free);
195 /** \brief Append a new field to a structure description */
197 gras_datadesc_struct_append(gras_datadesc_type_t struct_type,
198 const char *name, gras_datadesc_type_t field_type)
201 gras_dd_cat_field_t field;
204 xbt_assert2(field_type,
205 "Cannot add the field '%s' into struct '%s': its type is NULL",
206 name, struct_type->name);
207 XBT_IN3("(%s %s.%s;)", field_type->name, struct_type->name, name);
208 if (struct_type->category.struct_data.closed) {
210 ("Ignoring request to add field to struct %s (closed. Redefinition?)",
215 xbt_assert1(field_type->size[GRAS_THISARCH] >= 0,
216 "Cannot add a dynamically sized field in structure %s",
219 field = xbt_new(s_gras_dd_cat_field_t, 1);
220 field->name = (char *) strdup(name);
222 DEBUG0("----------------");
223 DEBUG3("PRE s={size=%ld,align=%ld,asize=%ld}",
224 struct_type->size[GRAS_THISARCH],
225 struct_type->alignment[GRAS_THISARCH],
226 struct_type->aligned_size[GRAS_THISARCH]);
229 for (arch = 0; arch < gras_arch_count; arch++) {
230 field->offset[arch] = ddt_aligned(struct_type->size[arch],
231 field_type->alignment[arch]);
233 struct_type->size[arch] = field->offset[arch] + field_type->size[arch];
234 struct_type->alignment[arch] = max(struct_type->alignment[arch],
235 field_type->alignment[arch]);
236 struct_type->aligned_size[arch] = ddt_aligned(struct_type->size[arch],
237 struct_type->alignment
240 field->type = field_type;
244 xbt_dynar_push(struct_type->category.struct_data.fields, &field);
246 DEBUG3("Push a %s into %s at offset %ld.",
247 field_type->name, struct_type->name, field->offset[GRAS_THISARCH]);
248 DEBUG3(" f={size=%ld,align=%ld,asize=%ld}",
249 field_type->size[GRAS_THISARCH],
250 field_type->alignment[GRAS_THISARCH],
251 field_type->aligned_size[GRAS_THISARCH]);
252 DEBUG3(" s={size=%ld,align=%ld,asize=%ld}",
253 struct_type->size[GRAS_THISARCH],
254 struct_type->alignment[GRAS_THISARCH],
255 struct_type->aligned_size[GRAS_THISARCH]);
259 /** \brief Close a structure description
261 * No new field can be added afterward, and it is mandatory to close the structure before using it.
263 void gras_datadesc_struct_close(gras_datadesc_type_t struct_type)
267 struct_type->category.struct_data.closed = 1;
268 for (arch = 0; arch < gras_arch_count; arch++) {
269 struct_type->size[arch] = struct_type->aligned_size[arch];
271 DEBUG4("structure %s closed. size=%ld,align=%ld,asize=%ld",
273 struct_type->size[GRAS_THISARCH],
274 struct_type->alignment[GRAS_THISARCH],
275 struct_type->aligned_size[GRAS_THISARCH]);
279 * gras_datadesc_cycle_set:
281 * Tell GRAS that the pointers of the type described by ddt may present
282 * some loop, and that the cycle detection mechanism is needed.
284 * Note that setting this option when not needed have a rather bad effect
285 * on the performance (several times slower on big data).
287 void gras_datadesc_cycle_set(gras_datadesc_type_t ddt)
293 * gras_datadesc_cycle_unset:
295 * Tell GRAS that the pointers of the type described by ddt do not present
296 * any loop and that cycle detection mechanism are not needed.
299 void gras_datadesc_cycle_unset(gras_datadesc_type_t ddt)
304 /** \brief Declare a new union description */
306 gras_datadesc_union(const char *name, gras_datadesc_type_cb_int_t selector)
309 gras_datadesc_type_t res;
312 XBT_IN1("(%s)", name);
313 xbt_assert0(selector,
314 "Attempt to creat an union without field_count function");
316 res = gras_datadesc_by_name_or_null(name);
318 /* FIXME: Check that field redefinition matches */
319 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_union,
320 "Redefinition of type %s does not match", name);
321 xbt_assert1(res->category.union_data.selector == selector,
322 "Redefinition of type %s does not match", name);
323 VERB1("Discarding redefinition of %s", name);
327 res = gras_ddt_new(name);
329 for (arch = 0; arch < gras_arch_count; arch++) {
331 res->alignment[arch] = 0;
332 res->aligned_size[arch] = 0;
335 res->category_code = e_gras_datadesc_type_cat_union;
336 res->category.union_data.fields =
337 xbt_dynar_new(sizeof(gras_dd_cat_field_t *), gras_dd_cat_field_free);
338 res->category.union_data.selector = selector;
343 /** \brief Append a new field to an union description */
344 void gras_datadesc_union_append(gras_datadesc_type_t union_type,
346 gras_datadesc_type_t field_type)
349 gras_dd_cat_field_t field;
352 XBT_IN3("(%s %s.%s;)", field_type->name, union_type->name, name);
353 xbt_assert1(field_type->size[GRAS_THISARCH] >= 0,
354 "Cannot add a dynamically sized field in union %s",
357 if (union_type->category.union_data.closed) {
358 VERB1("Ignoring request to add field to union %s (closed)",
363 field = xbt_new0(s_gras_dd_cat_field_t, 1);
365 field->name = (char *) strdup(name);
366 field->type = field_type;
367 /* All offset are left to 0 in an union */
369 xbt_dynar_push(union_type->category.union_data.fields, &field);
371 for (arch = 0; arch < gras_arch_count; arch++) {
372 union_type->size[arch] = max(union_type->size[arch],
373 field_type->size[arch]);
374 union_type->alignment[arch] = max(union_type->alignment[arch],
375 field_type->alignment[arch]);
376 union_type->aligned_size[arch] = ddt_aligned(union_type->size[arch],
377 union_type->alignment[arch]);
382 /** \brief Close an union description
384 * No new field can be added afterward, and it is mandatory to close the union before using it.
386 void gras_datadesc_union_close(gras_datadesc_type_t union_type)
388 union_type->category.union_data.closed = 1;
391 /** \brief Copy a type under another name
393 * This may reveal useful to circumvent parsing macro limitations
396 gras_datadesc_copy(const char *name, gras_datadesc_type_t copied)
399 gras_datadesc_type_t res = gras_ddt_new(name);
400 char *name_cpy = res->name;
402 memcpy(res, copied, sizeof(s_gras_datadesc_type_t));
403 res->name = name_cpy;
407 /** \brief Declare a new type being a reference to the one passed in arg */
409 gras_datadesc_ref(const char *name, gras_datadesc_type_t referenced_type)
412 gras_datadesc_type_t res;
413 gras_datadesc_type_t pointer_type = gras_datadesc_by_name("data pointer");
416 XBT_IN1("(%s)", name);
417 res = gras_datadesc_by_name_or_null(name);
419 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_ref,
420 "Redefinition of %s does not match", name);
421 xbt_assert1(res->category.ref_data.type == referenced_type,
422 "Redefinition of %s does not match", name);
423 xbt_assert1(res->category.ref_data.selector == NULL,
424 "Redefinition of %s does not match", name);
425 VERB1("Discarding redefinition of %s", name);
429 res = gras_ddt_new(name);
431 xbt_assert0(pointer_type, "Cannot get the description of data pointer");
433 for (arch = 0; arch < gras_arch_count; arch++) {
434 res->size[arch] = pointer_type->size[arch];
435 res->alignment[arch] = pointer_type->alignment[arch];
436 res->aligned_size[arch] = pointer_type->aligned_size[arch];
439 res->category_code = e_gras_datadesc_type_cat_ref;
440 res->category.ref_data.type = referenced_type;
441 res->category.ref_data.selector = NULL;
446 /** \brief Declare a new type being a generic reference.
448 * The callback passed in argument is to be used to select which type is currently used.
449 * So, when GRAS wants to send a generic reference, it passes the current data to the selector
450 * callback and expects it to return the type description to use.
453 gras_datadesc_ref_generic(const char *name, gras_datadesc_selector_t selector)
456 gras_datadesc_type_t res;
457 gras_datadesc_type_t pointer_type = gras_datadesc_by_name("data pointer");
460 XBT_IN1("(%s)", name);
461 res = gras_datadesc_by_name_or_null(name);
464 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_ref,
465 "Redefinition of type %s does not match", name);
466 xbt_assert1(res->category.ref_data.type == NULL,
467 "Redefinition of type %s does not match", name);
468 xbt_assert1(res->category.ref_data.selector == selector,
469 "Redefinition of type %s does not match", name);
470 VERB1("Discarding redefinition of %s", name);
473 res = gras_ddt_new(name);
475 xbt_assert0(pointer_type, "Cannot get the description of data pointer");
477 for (arch = 0; arch < gras_arch_count; arch++) {
478 res->size[arch] = pointer_type->size[arch];
479 res->alignment[arch] = pointer_type->alignment[arch];
480 res->aligned_size[arch] = pointer_type->aligned_size[arch];
483 res->category_code = e_gras_datadesc_type_cat_ref;
485 res->category.ref_data.type = NULL;
486 res->category.ref_data.selector = selector;
491 /** \brief Declare a new type being an array of fixed size and content */
493 gras_datadesc_array_fixed(const char *name,
494 gras_datadesc_type_t element_type,
498 gras_datadesc_type_t res;
501 XBT_IN1("(%s)", name);
502 res = gras_datadesc_by_name_or_null(name);
504 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_array,
505 "Redefinition of type %s does not match", name);
507 if (res->category.array_data.type != element_type) {
508 ERROR1("Redefinition of type %s does not match: array elements differ",
510 gras_datadesc_type_dump(res->category.array_data.type);
511 gras_datadesc_type_dump(element_type);
514 xbt_assert1(res->category.array_data.fixed_size == fixed_size,
515 "Redefinition of type %s does not match", name);
516 xbt_assert1(res->category.array_data.dynamic_size == NULL,
517 "Redefinition of type %s does not match", name);
518 VERB1("Discarding redefinition of %s", name);
522 res = gras_ddt_new(name);
524 xbt_assert1(fixed_size >= 0, "'%s' is a array of negative fixed size",
526 for (arch = 0; arch < gras_arch_count; arch++) {
527 res->size[arch] = fixed_size * element_type->aligned_size[arch];
528 res->alignment[arch] = element_type->alignment[arch];
529 res->aligned_size[arch] = res->size[arch];
532 res->category_code = e_gras_datadesc_type_cat_array;
534 res->category.array_data.type = element_type;
535 res->category.array_data.fixed_size = fixed_size;
536 res->category.array_data.dynamic_size = NULL;
541 /** \brief Declare a new type being an array of fixed size, but accepting several content types. */
542 gras_datadesc_type_t gras_datadesc_array_dyn(const char *name,
545 gras_datadesc_type_cb_int_t
549 gras_datadesc_type_t res;
552 XBT_IN1("(%s)", name);
553 xbt_assert1(dynamic_size,
554 "'%s' is a dynamic array without size discriminant", name);
556 res = gras_datadesc_by_name_or_null(name);
558 xbt_assert1(res->category_code == e_gras_datadesc_type_cat_array,
559 "Redefinition of type %s does not match", name);
560 xbt_assert1(res->category.array_data.type == element_type,
561 "Redefinition of type %s does not match", name);
562 xbt_assert1(res->category.array_data.fixed_size == -1,
563 "Redefinition of type %s does not match", name);
564 xbt_assert1(res->category.array_data.dynamic_size == dynamic_size,
565 "Redefinition of type %s does not match", name);
566 VERB1("Discarding redefinition of %s", name);
571 res = gras_ddt_new(name);
573 for (arch = 0; arch < gras_arch_count; arch++) {
574 res->size[arch] = 0; /* make sure it indicates "dynamic" */
575 res->alignment[arch] = element_type->alignment[arch];
576 res->aligned_size[arch] = 0; /*FIXME: That was so in GS, but looks stupid */
579 res->category_code = e_gras_datadesc_type_cat_array;
581 res->category.array_data.type = element_type;
582 res->category.array_data.fixed_size = -1;
583 res->category.array_data.dynamic_size = dynamic_size;
588 /** \brief Declare a new type being an array which size can be found with \ref gras_cbps_i_pop
590 * Most of the time, you want to include a reference in your structure which
591 * is a pointer to a dynamic array whose size is fixed by another field of
594 * This case pops up so often that this function was created to take care of
595 * this case. It creates a dynamic array type whose size is poped from the
596 * current cbps, and then create a reference to it.
598 * The name of the created datatype will be the name of the element type, with
599 * '[]*' appended to it.
601 * Then to use it, you just have to make sure that your structure pre-callback
602 * does push the size of the array in the cbps (using #gras_cbps_i_push), and
605 * But be remember that this is a stack. If you have two different pop_arr, you
606 * should push the second one first, so that the first one is on the top of the
607 * list when the first field gets transfered.
611 gras_datadesc_ref_pop_arr(gras_datadesc_type_t element_type)
614 gras_datadesc_type_t res;
615 char *name = (char *) xbt_malloc(strlen(element_type->name) + 4);
617 sprintf(name, "%s[]", element_type->name);
619 res = gras_datadesc_array_dyn(name, element_type, gras_datadesc_cb_pop);
621 sprintf(name, "%s[]*", element_type->name);
622 res = gras_datadesc_ref(name, res);
631 *## Constructor of container datatypes
635 static void gras_datadesc_dynar_cb(gras_datadesc_type_t typedesc,
636 gras_cbps_t vars, void *data)
638 gras_datadesc_type_t subtype;
639 xbt_dynar_t dynar = (xbt_dynar_t) data;
641 memcpy(&dynar->free_f, &typedesc->extra, sizeof(dynar->free_f));
643 /* search for the elemsize in what we have. If elements are "int", typedesc got is "int[]*" */
644 subtype = gras_dd_find_field(typedesc, "data")->type;
646 /* this is now a ref to array of what we're looking for */
647 subtype = subtype->category.ref_data.type;
648 subtype = subtype->category.array_data.type;
650 DEBUG1("subtype is %s", subtype->name);
652 dynar->elmsize = subtype->size[GRAS_THISARCH];
653 dynar->size = dynar->used;
657 /** \brief Declare a new type being a dynar in which each elements are of the given type
659 * The type gets registered under the name "dynar(%s)_s", where %s is the name of the subtype.
660 * For example, a dynar of doubles will be called "dynar(double)_s" and a dynar of dynar of
661 * strings will be called "dynar(dynar(string)_s)_s".
663 * \param elm_t: the datadesc of the elements
664 * \param free_func: the function to use to free the elements when the dynar gets freed
667 gras_datadesc_dynar(gras_datadesc_type_t elm_t, void_f_pvoid_t free_func)
671 gras_datadesc_type_t res;
673 asprintf(&buffname, "s_xbt_dynar_of_%s", elm_t->name);
675 res = gras_datadesc_struct(buffname);
677 gras_datadesc_struct_append(res, "size",
678 gras_datadesc_by_name("unsigned long int"));
680 gras_datadesc_struct_append(res, "used",
681 gras_datadesc_by_name("unsigned long int"));
683 gras_datadesc_struct_append(res, "elmsize",
684 gras_datadesc_by_name("unsigned long int"));
686 gras_datadesc_struct_append(res, "data", gras_datadesc_ref_pop_arr(elm_t));
688 gras_datadesc_struct_append(res, "free_f",
689 gras_datadesc_by_name("function pointer"));
690 memcpy(res->extra, &free_func, sizeof(free_func));
692 gras_datadesc_struct_append(res, "mutex",
693 gras_datadesc_by_name("data pointer"));
695 gras_datadesc_struct_close(res);
697 gras_datadesc_cb_field_push(res, "used");
698 gras_datadesc_cb_recv(res, &gras_datadesc_dynar_cb);
700 /* build a ref to it */
702 asprintf(&buffname, "xbt_dynar_of_%s", elm_t->name);
703 res = gras_datadesc_ref(buffname, res);
708 #include "xbt/matrix.h"
709 static void gras_datadesc_matrix_cb(gras_datadesc_type_t typedesc,
710 gras_cbps_t vars, void *data)
712 gras_datadesc_type_t subtype;
713 xbt_matrix_t matrix = (xbt_matrix_t) data;
715 memcpy(&matrix->free_f, &typedesc->extra, sizeof(matrix->free_f));
717 /* search for the elemsize in what we have. If elements are "int", typedesc got is "int[]*" */
718 subtype = gras_dd_find_field(typedesc, "data")->type;
720 /* this is now a ref to array of what we're looking for */
721 subtype = subtype->category.ref_data.type;
722 subtype = subtype->category.array_data.type;
724 DEBUG1("subtype is %s", subtype->name);
726 matrix->elmsize = subtype->size[GRAS_THISARCH];
730 gras_datadesc_matrix(gras_datadesc_type_t elm_t, void_f_pvoid_t const free_f)
733 gras_datadesc_type_t res;
735 asprintf(&buffname, "s_xbt_matrix_t(%s)", elm_t->name);
736 res = gras_datadesc_struct(buffname);
738 gras_datadesc_struct_append(res, "lines",
739 gras_datadesc_by_name("unsigned int"));
740 gras_datadesc_struct_append(res, "rows",
741 gras_datadesc_by_name("unsigned int"));
743 gras_datadesc_struct_append(res, "elmsize",
744 gras_datadesc_by_name("unsigned long int"));
746 gras_datadesc_struct_append(res, "data", gras_datadesc_ref_pop_arr(elm_t));
747 gras_datadesc_struct_append(res, "free_f",
748 gras_datadesc_by_name("function pointer"));
749 gras_datadesc_struct_close(res);
751 gras_datadesc_cb_field_push(res, "lines");
752 gras_datadesc_cb_field_push_multiplier(res, "rows");
754 gras_datadesc_cb_recv(res, &gras_datadesc_matrix_cb);
755 memcpy(res->extra, &free_f, sizeof(free_f));
757 /* build a ref to it */
759 asprintf(&buffname, "xbt_matrix_t(%s)", elm_t->name);
760 res = gras_datadesc_ref(buffname, res);
766 gras_datadesc_import_nws(const char *name,
767 const DataDescriptor * desc, unsigned long howmany)
773 * (useful to push the sizes of the upcoming arrays, for example)
775 void gras_datadesc_cb_send(gras_datadesc_type_t type,
776 gras_datadesc_type_cb_void_t send)
782 * (useful to put the function pointers to the rigth value, for example)
784 void gras_datadesc_cb_recv(gras_datadesc_type_t type,
785 gras_datadesc_type_cb_void_t recv)
791 * gras_dd_find_field:
793 * Returns the type descriptor of the given field. Abort on error.
795 static gras_dd_cat_field_t
796 gras_dd_find_field(gras_datadesc_type_t type, const char *field_name)
798 xbt_dynar_t field_array;
800 gras_dd_cat_field_t field = NULL;
801 unsigned int field_num;
803 if (type->category_code == e_gras_datadesc_type_cat_union) {
804 field_array = type->category.union_data.fields;
805 } else if (type->category_code == e_gras_datadesc_type_cat_struct) {
806 field_array = type->category.struct_data.fields;
808 ERROR2("%s (%p) is not a struct nor an union. There is no field.",
809 type->name, (void *) type);
812 xbt_dynar_foreach(field_array, field_num, field) {
813 if (!strcmp(field_name, field->name)) {
817 ERROR2("No field named '%s' in '%s'", field_name, type->name);
823 * The given datadesc must be a struct or union (abort if not).
824 * (useful to push the sizes of the upcoming arrays, for example)
826 void gras_datadesc_cb_field_send(gras_datadesc_type_t type,
827 const char *field_name,
828 gras_datadesc_type_cb_void_t send)
831 gras_dd_cat_field_t field = gras_dd_find_field(type, field_name);
837 * The value, which must be an int, unsigned int, long int or unsigned long int
838 * is pushed to the stacks of sizes and can then be retrieved with
839 * \ref gras_datadesc_ref_pop_arr or directly with \ref gras_cbps_i_pop.
841 void gras_datadesc_cb_field_push(gras_datadesc_type_t type,
842 const char *field_name)
845 gras_dd_cat_field_t field = gras_dd_find_field(type, field_name);
846 gras_datadesc_type_t sub_type = field->type;
848 DEBUG3("add a PUSHy cb to '%s' field (type '%s') of '%s'",
849 field_name, sub_type->name, type->name);
850 if (!strcmp("int", sub_type->name)) {
851 field->send = gras_datadesc_cb_push_int;
852 } else if (!strcmp("unsigned int", sub_type->name)) {
853 field->send = gras_datadesc_cb_push_uint;
854 } else if (!strcmp("long int", sub_type->name)) {
855 field->send = gras_datadesc_cb_push_lint;
856 } else if (!strcmp("unsigned long int", sub_type->name)) {
857 field->send = gras_datadesc_cb_push_ulint;
860 ("Field %s is not an int, unsigned int, long int neither unsigned long int",
867 * Any previously pushed value is poped and the field value is multiplied to
868 * it. The result is then pushed back into the stack of sizes. It can then be
869 * retrieved with \ref gras_datadesc_ref_pop_arr or directly with \ref
872 * The field must be an int, unsigned int, long int or unsigned long int.
874 void gras_datadesc_cb_field_push_multiplier(gras_datadesc_type_t type,
875 const char *field_name)
878 gras_dd_cat_field_t field = gras_dd_find_field(type, field_name);
879 gras_datadesc_type_t sub_type = field->type;
881 DEBUG3("add a MPUSHy cb to '%s' field (type '%s') of '%s'",
882 field_name, sub_type->name, type->name);
883 if (!strcmp("int", sub_type->name)) {
884 field->send = gras_datadesc_cb_push_int_mult;
885 } else if (!strcmp("unsigned int", sub_type->name)) {
886 field->send = gras_datadesc_cb_push_uint_mult;
887 } else if (!strcmp("long int", sub_type->name)) {
888 field->send = gras_datadesc_cb_push_lint_mult;
889 } else if (!strcmp("unsigned long int", sub_type->name)) {
890 field->send = gras_datadesc_cb_push_ulint_mult;
893 ("Field %s is not an int, unsigned int, long int neither unsigned long int",
900 * The given datadesc must be a struct or union (abort if not).
901 * (useful to put the function pointers to the right value, for example)
903 void gras_datadesc_cb_field_recv(gras_datadesc_type_t type,
904 const char *field_name,
905 gras_datadesc_type_cb_void_t recv)
908 gras_dd_cat_field_t field = gras_dd_find_field(type, field_name);
913 * Free a datadesc. Should only be called at xbt_exit.
915 void gras_datadesc_free(gras_datadesc_type_t * type)
918 DEBUG1("Let's free ddt %s", (*type)->name);
920 switch ((*type)->category_code) {
921 case e_gras_datadesc_type_cat_scalar:
922 case e_gras_datadesc_type_cat_ref:
923 case e_gras_datadesc_type_cat_array:
924 /* nothing to free in there */
927 case e_gras_datadesc_type_cat_struct:
928 xbt_dynar_free(&((*type)->category.struct_data.fields));
931 case e_gras_datadesc_type_cat_union:
932 xbt_dynar_free(&((*type)->category.union_data.fields));
936 /* datadesc was invalid. Killing it is like euthanasy, I guess */
945 * gras_datadesc_type_cmp:
947 * Compares two datadesc types with the same semantic than strcmp.
949 * This comparison does not take the set headers into account (name and ID),
950 * but only the payload (actual type description).
952 int gras_datadesc_type_cmp(const gras_datadesc_type_t d1,
953 const gras_datadesc_type_t d2)
957 gras_dd_cat_field_t field1, field2;
958 gras_datadesc_type_t field_desc_1, field_desc_2;
961 return 0; /* easy optimization */
964 DEBUG0("ddt_cmp: !d1 && d2 => 1");
968 DEBUG0("ddt_cmp: !d1 && !d2 => 0");
972 DEBUG0("ddt_cmp: d1 && !d2 => -1");
976 for (cpt = 0; cpt < gras_arch_count; cpt++) {
977 if (d1->size[cpt] != d2->size[cpt]) {
978 DEBUG5("ddt_cmp: %s->size=%ld != %s->size=%ld (on %s)",
979 d1->name, d1->size[cpt], d2->name, d2->size[cpt],
980 gras_arches[cpt].name);
981 return d1->size[cpt] > d2->size[cpt] ? 1 : -1;
984 if (d1->alignment[cpt] != d2->alignment[cpt]) {
985 DEBUG5("ddt_cmp: %s->alignment=%ld != %s->alignment=%ld (on %s)",
986 d1->name, d1->alignment[cpt], d2->name, d2->alignment[cpt],
987 gras_arches[cpt].name);
988 return d1->alignment[cpt] > d2->alignment[cpt] ? 1 : -1;
991 if (d1->aligned_size[cpt] != d2->aligned_size[cpt]) {
993 ("ddt_cmp: %s->aligned_size=%ld != %s->aligned_size=%ld (on %s)",
994 d1->name, d1->aligned_size[cpt], d2->name, d2->aligned_size[cpt],
995 gras_arches[cpt].name);
996 return d1->aligned_size[cpt] > d2->aligned_size[cpt] ? 1 : -1;
1000 if (d1->category_code != d2->category_code) {
1001 DEBUG4("ddt_cmp: %s->cat=%s != %s->cat=%s",
1002 d1->name, gras_datadesc_cat_names[d1->category_code],
1003 d2->name, gras_datadesc_cat_names[d2->category_code]);
1004 return d1->category_code > d2->category_code ? 1 : -1;
1007 if (d1->send != d2->send) {
1008 DEBUG4("ddt_cmp: %s->send=%p != %s->send=%p",
1009 d1->name, (void *) d1->send, d2->name, (void *) d2->send);
1010 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1013 if (d1->recv != d2->recv) {
1014 DEBUG4("ddt_cmp: %s->recv=%p != %s->recv=%p",
1015 d1->name, (void *) d1->recv, d2->name, (void *) d2->recv);
1016 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1019 switch (d1->category_code) {
1020 case e_gras_datadesc_type_cat_scalar:
1021 if (d1->category.scalar_data.encoding !=
1022 d2->category.scalar_data.encoding)
1023 return d1->category.scalar_data.encoding >
1024 d2->category.scalar_data.encoding ? 1 : -1;
1027 case e_gras_datadesc_type_cat_struct:
1028 if (xbt_dynar_length(d1->category.struct_data.fields) !=
1029 xbt_dynar_length(d2->category.struct_data.fields)) {
1030 DEBUG4("ddt_cmp: %s (having %lu fields) != %s (having %lu fields)",
1031 d1->name, xbt_dynar_length(d1->category.struct_data.fields),
1032 d2->name, xbt_dynar_length(d2->category.struct_data.fields));
1034 return xbt_dynar_length(d1->category.struct_data.fields) >
1035 xbt_dynar_length(d2->category.struct_data.fields) ? 1 : -1;
1037 xbt_dynar_foreach(d1->category.struct_data.fields, cpt, field1) {
1040 xbt_dynar_get_as(d2->category.struct_data.fields, cpt,
1041 gras_dd_cat_field_t);
1042 field_desc_1 = field1->type;
1043 field_desc_2 = field2->type;
1044 ret = gras_datadesc_type_cmp(field_desc_1, field_desc_2);
1046 DEBUG6("%s->field[%d]=%s != %s->field[%d]=%s",
1047 d1->name, cpt, field1->name, d2->name, cpt, field2->name);
1054 case e_gras_datadesc_type_cat_union:
1055 if (d1->category.union_data.selector != d2->category.union_data.selector)
1056 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1058 if (xbt_dynar_length(d1->category.union_data.fields) !=
1059 xbt_dynar_length(d2->category.union_data.fields))
1060 return xbt_dynar_length(d1->category.union_data.fields) >
1061 xbt_dynar_length(d2->category.union_data.fields) ? 1 : -1;
1063 xbt_dynar_foreach(d1->category.union_data.fields, cpt, field1) {
1066 xbt_dynar_get_as(d2->category.union_data.fields, cpt,
1067 gras_dd_cat_field_t);
1068 field_desc_1 = field1->type;
1069 field_desc_2 = field2->type;
1070 ret = gras_datadesc_type_cmp(field_desc_1, field_desc_2);
1078 case e_gras_datadesc_type_cat_ref:
1079 if (d1->category.ref_data.selector != d2->category.ref_data.selector)
1080 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1082 if (d1->category.ref_data.type != d2->category.ref_data.type)
1083 return d1->category.ref_data.type > d2->category.ref_data.type ? 1 : -1;
1086 case e_gras_datadesc_type_cat_array:
1087 if (d1->category.array_data.type != d2->category.array_data.type)
1088 return d1->category.array_data.type >
1089 d2->category.array_data.type ? 1 : -1;
1091 if (d1->category.array_data.fixed_size !=
1092 d2->category.array_data.fixed_size)
1093 return d1->category.array_data.fixed_size >
1094 d2->category.array_data.fixed_size ? 1 : -1;
1096 if (d1->category.array_data.dynamic_size !=
1097 d2->category.array_data.dynamic_size)
1098 return 1; /* ISO C forbids ordered comparisons of pointers to functions */
1103 /* two stupidly created ddt are equally stupid ;) */