X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/eae1f516d7042d8a589b3d4150cc2721dc146a24..663f424beab193b084453ba397102844dcd5ed64:/src/gras/DataDesc/ddt_create.c diff --git a/src/gras/DataDesc/ddt_create.c b/src/gras/DataDesc/ddt_create.c index a947f07ffb..2f1158ebaf 100644 --- a/src/gras/DataDesc/ddt_create.c +++ b/src/gras/DataDesc/ddt_create.c @@ -1,1123 +1,1123 @@ -/* ddt_new - creation/deletion of datatypes structs (private to this module)*/ - -/* Copyright (c) 2004, 2005, 2006, 2007, 2009, 2010. The SimGrid Team. - * All rights reserved. */ - -/* 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. */ - -#include "xbt/misc.h" /* min()/max() */ -#include "xbt/ex.h" -#include "gras/DataDesc/datadesc_private.h" - -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_ddt_create, gras_ddt, - "Creating new datadescriptions"); - -/*** prototypes ***/ -static gras_dd_cat_field_t -gras_dd_find_field(gras_datadesc_type_t type, const char *field_name); -/** - * gras_ddt_freev: - * - * gime that memory back, dude. I mean it. - */ -void gras_ddt_freev(void *ddt) -{ - gras_datadesc_type_t type = (gras_datadesc_type_t) ddt; - - if (type) { - gras_datadesc_free(&type); - } -} - -static gras_datadesc_type_t gras_ddt_new(const char *name) -{ - gras_datadesc_type_t res; - - XBT_IN1("(%s)", name); - res = xbt_new0(s_gras_datadesc_type_t, 1); - - res->name = (char *) strdup(name); - res->name_len = strlen(name); - res->cycle = 0; - - xbt_set_add(gras_datadesc_set_local, (xbt_set_elm_t) res, gras_ddt_freev); - XBT_OUT; - return res; -} - -/** @brief retrieve an existing message type from its name (or NULL if it does not exist). */ -gras_datadesc_type_t gras_datadesc_by_name_or_null(const char *name) -{ - xbt_ex_t e; - gras_datadesc_type_t res = NULL; - - TRY { - res = gras_datadesc_by_name(name); - } CATCH(e) { - res = NULL; - xbt_ex_free(e); - } - return res; -} - -/** - * Search the given datadesc (or raises an exception if it can't be found) - */ -gras_datadesc_type_t gras_datadesc_by_name(const char *name) -{ - xbt_ex_t e; - gras_datadesc_type_t res = NULL; - volatile int found = 0; - TRY { - res = - (gras_datadesc_type_t) xbt_set_get_by_name(gras_datadesc_set_local, - name); - found = 1; - } CATCH(e) { - if (e.category != not_found_error) - RETHROW; - xbt_ex_free(e); - } - if (!found) - THROW1(not_found_error, 0, "No registred datatype of that name: %s", - name); - - return res; -} - -/** - * Retrieve a type from its code (or NULL if not found) - */ -gras_datadesc_type_t gras_datadesc_by_id(long int code) -{ - xbt_ex_t e; - gras_datadesc_type_t res = NULL; - TRY { - res = - (gras_datadesc_type_t) xbt_set_get_by_id(gras_datadesc_set_local, code); - } CATCH(e) { - if (e.category != not_found_error) - RETHROW; - xbt_ex_free(e); - res = NULL; - } - return res; -} - -/** - * Create a new scalar and give a pointer to it - */ -gras_datadesc_type_t -gras_datadesc_scalar(const char *name, - gras_ddt_scalar_type_t type, - enum e_gras_dd_scalar_encoding encoding) -{ - - gras_datadesc_type_t res; - long int arch; - - XBT_IN; - res = gras_datadesc_by_name_or_null(name); - if (res) { - xbt_assert1(res->category_code == e_gras_datadesc_type_cat_scalar, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.scalar_data.encoding == encoding, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.scalar_data.type == type, - "Redefinition of type %s does not match", name); - VERB1("Discarding redefinition of %s", name); - return res; - } - res = gras_ddt_new(name); - - for (arch = 0; arch < gras_arch_count; arch++) { - res->size[arch] = gras_arches[arch].sizeofs[type]; - res->alignment[arch] = gras_arches[arch].boundaries[type]; - res->aligned_size[arch] = - ddt_aligned(res->size[arch], res->alignment[arch]); - } - - res->category_code = e_gras_datadesc_type_cat_scalar; - res->category.scalar_data.encoding = encoding; - res->category.scalar_data.type = type; - XBT_OUT; - - return res; -} - - -/** Frees one struct or union field */ -void gras_dd_cat_field_free(void *f) -{ - gras_dd_cat_field_t field = *(gras_dd_cat_field_t *) f; - XBT_IN; - if (field) { - if (field->name) - free(field->name); - free(field); - } - XBT_OUT; -} - -/** \brief Declare a new structure description */ -gras_datadesc_type_t gras_datadesc_struct(const char *name) -{ - - gras_datadesc_type_t res; - long int arch; - - XBT_IN1("(%s)", name); - res = gras_datadesc_by_name_or_null(name); - if (res) { - /* FIXME: Check that field redefinition matches */ - xbt_assert1(res->category_code == e_gras_datadesc_type_cat_struct, - "Redefinition of type %s does not match", name); - VERB1("Discarding redefinition of %s", name); - return res; - } - res = gras_ddt_new(name); - - for (arch = 0; arch < gras_arch_count; arch++) { - res->size[arch] = 0; - res->alignment[arch] = 0; - res->aligned_size[arch] = 0; - } - res->category_code = e_gras_datadesc_type_cat_struct; - res->category.struct_data.fields = - xbt_dynar_new(sizeof(gras_dd_cat_field_t), gras_dd_cat_field_free); - - XBT_OUT; - return res; -} - -/** \brief Append a new field to a structure description */ -void -gras_datadesc_struct_append(gras_datadesc_type_t struct_type, - const char *name, gras_datadesc_type_t field_type) -{ - - gras_dd_cat_field_t field; - int arch; - - xbt_assert2(field_type, - "Cannot add the field '%s' into struct '%s': its type is NULL", - name, struct_type->name); - XBT_IN3("(%s %s.%s;)", field_type->name, struct_type->name, name); - if (struct_type->category.struct_data.closed) { - VERB1 - ("Ignoring request to add field to struct %s (closed. Redefinition?)", - struct_type->name); - return; - } - - xbt_assert1(field_type->size[GRAS_THISARCH] >= 0, - "Cannot add a dynamically sized field in structure %s", - struct_type->name); - - field = xbt_new(s_gras_dd_cat_field_t, 1); - field->name = (char *) strdup(name); - - DEBUG0("----------------"); - DEBUG3("PRE s={size=%ld,align=%ld,asize=%ld}", - struct_type->size[GRAS_THISARCH], - struct_type->alignment[GRAS_THISARCH], - struct_type->aligned_size[GRAS_THISARCH]); - - - for (arch = 0; arch < gras_arch_count; arch++) { - field->offset[arch] = ddt_aligned(struct_type->size[arch], - field_type->alignment[arch]); - - struct_type->size[arch] = field->offset[arch] + field_type->size[arch]; - struct_type->alignment[arch] = max(struct_type->alignment[arch], - field_type->alignment[arch]); - struct_type->aligned_size[arch] = ddt_aligned(struct_type->size[arch], - struct_type->alignment - [arch]); - } - field->type = field_type; - field->send = NULL; - field->recv = NULL; - - xbt_dynar_push(struct_type->category.struct_data.fields, &field); - - DEBUG3("Push a %s into %s at offset %ld.", - field_type->name, struct_type->name, field->offset[GRAS_THISARCH]); - DEBUG3(" f={size=%ld,align=%ld,asize=%ld}", - field_type->size[GRAS_THISARCH], - field_type->alignment[GRAS_THISARCH], - field_type->aligned_size[GRAS_THISARCH]); - DEBUG3(" s={size=%ld,align=%ld,asize=%ld}", - struct_type->size[GRAS_THISARCH], - struct_type->alignment[GRAS_THISARCH], - struct_type->aligned_size[GRAS_THISARCH]); - XBT_OUT; -} - -/** \brief Close a structure description - * - * No new field can be added afterward, and it is mandatory to close the structure before using it. - */ -void gras_datadesc_struct_close(gras_datadesc_type_t struct_type) -{ - int arch; - XBT_IN; - struct_type->category.struct_data.closed = 1; - for (arch = 0; arch < gras_arch_count; arch++) { - struct_type->size[arch] = struct_type->aligned_size[arch]; - } - DEBUG4("structure %s closed. size=%ld,align=%ld,asize=%ld", - struct_type->name, - struct_type->size[GRAS_THISARCH], - struct_type->alignment[GRAS_THISARCH], - struct_type->aligned_size[GRAS_THISARCH]); -} - -/** - * gras_datadesc_cycle_set: - * - * Tell GRAS that the pointers of the type described by ddt may present - * some loop, and that the cycle detection mechanism is needed. - * - * Note that setting this option when not needed have a rather bad effect - * on the performance (several times slower on big data). - */ -void gras_datadesc_cycle_set(gras_datadesc_type_t ddt) -{ - ddt->cycle = 1; -} - -/** - * gras_datadesc_cycle_unset: - * - * Tell GRAS that the pointers of the type described by ddt do not present - * any loop and that cycle detection mechanism are not needed. - * (default) - */ -void gras_datadesc_cycle_unset(gras_datadesc_type_t ddt) -{ - ddt->cycle = 0; -} - -/** \brief Declare a new union description */ -gras_datadesc_type_t -gras_datadesc_union(const char *name, gras_datadesc_type_cb_int_t selector) -{ - - gras_datadesc_type_t res; - int arch; - - XBT_IN1("(%s)", name); - xbt_assert0(selector, - "Attempt to creat an union without field_count function"); - - res = gras_datadesc_by_name_or_null(name); - if (res) { - /* FIXME: Check that field redefinition matches */ - xbt_assert1(res->category_code == e_gras_datadesc_type_cat_union, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.union_data.selector == selector, - "Redefinition of type %s does not match", name); - VERB1("Discarding redefinition of %s", name); - return res; - } - - res = gras_ddt_new(name); - - for (arch = 0; arch < gras_arch_count; arch++) { - res->size[arch] = 0; - res->alignment[arch] = 0; - res->aligned_size[arch] = 0; - } - - res->category_code = e_gras_datadesc_type_cat_union; - res->category.union_data.fields = - xbt_dynar_new(sizeof(gras_dd_cat_field_t *), gras_dd_cat_field_free); - res->category.union_data.selector = selector; - - return res; -} - -/** \brief Append a new field to an union description */ -void gras_datadesc_union_append(gras_datadesc_type_t union_type, - const char *name, - gras_datadesc_type_t field_type) -{ - - gras_dd_cat_field_t field; - int arch; - - XBT_IN3("(%s %s.%s;)", field_type->name, union_type->name, name); - xbt_assert1(field_type->size[GRAS_THISARCH] >= 0, - "Cannot add a dynamically sized field in union %s", - union_type->name); - - if (union_type->category.union_data.closed) { - VERB1("Ignoring request to add field to union %s (closed)", - union_type->name); - return; - } - - field = xbt_new0(s_gras_dd_cat_field_t, 1); - - field->name = (char *) strdup(name); - field->type = field_type; - /* All offset are left to 0 in an union */ - - xbt_dynar_push(union_type->category.union_data.fields, &field); - - for (arch = 0; arch < gras_arch_count; arch++) { - union_type->size[arch] = max(union_type->size[arch], - field_type->size[arch]); - union_type->alignment[arch] = max(union_type->alignment[arch], - field_type->alignment[arch]); - union_type->aligned_size[arch] = ddt_aligned(union_type->size[arch], - union_type->alignment[arch]); - } -} - - -/** \brief Close an union description - * - * No new field can be added afterward, and it is mandatory to close the union before using it. - */ -void gras_datadesc_union_close(gras_datadesc_type_t union_type) -{ - union_type->category.union_data.closed = 1; -} - -/** \brief Copy a type under another name - * - * This may reveal useful to circumvent parsing macro limitations - */ -gras_datadesc_type_t -gras_datadesc_copy(const char *name, gras_datadesc_type_t copied) -{ - - gras_datadesc_type_t res = gras_ddt_new(name); - char *name_cpy = res->name; - - memcpy(res, copied, sizeof(s_gras_datadesc_type_t)); - res->name = name_cpy; - return res; -} - -/** \brief Declare a new type being a reference to the one passed in arg */ -gras_datadesc_type_t -gras_datadesc_ref(const char *name, gras_datadesc_type_t referenced_type) -{ - - gras_datadesc_type_t res; - gras_datadesc_type_t pointer_type = gras_datadesc_by_name("data pointer"); - int arch; - - XBT_IN1("(%s)", name); - res = gras_datadesc_by_name_or_null(name); - if (res) { - xbt_assert1(res->category_code == e_gras_datadesc_type_cat_ref, - "Redefinition of %s does not match", name); - xbt_assert1(res->category.ref_data.type == referenced_type, - "Redefinition of %s does not match", name); - xbt_assert1(res->category.ref_data.selector == NULL, - "Redefinition of %s does not match", name); - VERB1("Discarding redefinition of %s", name); - return res; - } - - res = gras_ddt_new(name); - - xbt_assert0(pointer_type, "Cannot get the description of data pointer"); - - for (arch = 0; arch < gras_arch_count; arch++) { - res->size[arch] = pointer_type->size[arch]; - res->alignment[arch] = pointer_type->alignment[arch]; - res->aligned_size[arch] = pointer_type->aligned_size[arch]; - } - - res->category_code = e_gras_datadesc_type_cat_ref; - res->category.ref_data.type = referenced_type; - res->category.ref_data.selector = NULL; - - return res; -} - -/** \brief Declare a new type being a generic reference. - * - * The callback passed in argument is to be used to select which type is currently used. - * So, when GRAS wants to send a generic reference, it passes the current data to the selector - * callback and expects it to return the type description to use. - */ -gras_datadesc_type_t -gras_datadesc_ref_generic(const char *name, gras_datadesc_selector_t selector) -{ - - gras_datadesc_type_t res; - gras_datadesc_type_t pointer_type = gras_datadesc_by_name("data pointer"); - int arch; - - XBT_IN1("(%s)", name); - res = gras_datadesc_by_name_or_null(name); - - if (res) { - xbt_assert1(res->category_code == e_gras_datadesc_type_cat_ref, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.ref_data.type == NULL, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.ref_data.selector == selector, - "Redefinition of type %s does not match", name); - VERB1("Discarding redefinition of %s", name); - return res; - } - res = gras_ddt_new(name); - - xbt_assert0(pointer_type, "Cannot get the description of data pointer"); - - for (arch = 0; arch < gras_arch_count; arch++) { - res->size[arch] = pointer_type->size[arch]; - res->alignment[arch] = pointer_type->alignment[arch]; - res->aligned_size[arch] = pointer_type->aligned_size[arch]; - } - - res->category_code = e_gras_datadesc_type_cat_ref; - - res->category.ref_data.type = NULL; - res->category.ref_data.selector = selector; - - return res; -} - -/** \brief Declare a new type being an array of fixed size and content */ -gras_datadesc_type_t -gras_datadesc_array_fixed(const char *name, - gras_datadesc_type_t element_type, - long int fixed_size) -{ - - gras_datadesc_type_t res; - int arch; - - XBT_IN1("(%s)", name); - res = gras_datadesc_by_name_or_null(name); - if (res) { - xbt_assert1(res->category_code == e_gras_datadesc_type_cat_array, - "Redefinition of type %s does not match", name); - - if (res->category.array_data.type != element_type) { - ERROR1("Redefinition of type %s does not match: array elements differ", - name); - gras_datadesc_type_dump(res->category.array_data.type); - gras_datadesc_type_dump(element_type); - } - - xbt_assert1(res->category.array_data.fixed_size == fixed_size, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.array_data.dynamic_size == NULL, - "Redefinition of type %s does not match", name); - VERB1("Discarding redefinition of %s", name); - - return res; - } - res = gras_ddt_new(name); - - xbt_assert1(fixed_size >= 0, "'%s' is a array of negative fixed size", - name); - for (arch = 0; arch < gras_arch_count; arch++) { - res->size[arch] = fixed_size * element_type->aligned_size[arch]; - res->alignment[arch] = element_type->alignment[arch]; - res->aligned_size[arch] = res->size[arch]; - } - - res->category_code = e_gras_datadesc_type_cat_array; - - res->category.array_data.type = element_type; - res->category.array_data.fixed_size = fixed_size; - res->category.array_data.dynamic_size = NULL; - - return res; -} - -/** \brief Declare a new type being an array of fixed size, but accepting several content types. */ -gras_datadesc_type_t gras_datadesc_array_dyn(const char *name, - gras_datadesc_type_t - element_type, - gras_datadesc_type_cb_int_t - dynamic_size) -{ - - gras_datadesc_type_t res; - int arch; - - XBT_IN1("(%s)", name); - xbt_assert1(dynamic_size, - "'%s' is a dynamic array without size discriminant", name); - - res = gras_datadesc_by_name_or_null(name); - if (res) { - xbt_assert1(res->category_code == e_gras_datadesc_type_cat_array, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.array_data.type == element_type, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.array_data.fixed_size == -1, - "Redefinition of type %s does not match", name); - xbt_assert1(res->category.array_data.dynamic_size == dynamic_size, - "Redefinition of type %s does not match", name); - VERB1("Discarding redefinition of %s", name); - - return res; - } - - res = gras_ddt_new(name); - - for (arch = 0; arch < gras_arch_count; arch++) { - res->size[arch] = 0; /* make sure it indicates "dynamic" */ - res->alignment[arch] = element_type->alignment[arch]; - res->aligned_size[arch] = 0; /*FIXME: That was so in GS, but looks stupid */ - } - - res->category_code = e_gras_datadesc_type_cat_array; - - res->category.array_data.type = element_type; - res->category.array_data.fixed_size = -1; - res->category.array_data.dynamic_size = dynamic_size; - - return res; -} - -/** \brief Declare a new type being an array which size can be found with \ref gras_cbps_i_pop - * - * Most of the time, you want to include a reference in your structure which - * is a pointer to a dynamic array whose size is fixed by another field of - * your structure. - * - * This case pops up so often that this function was created to take care of - * this case. It creates a dynamic array type whose size is poped from the - * current cbps, and then create a reference to it. - * - * The name of the created datatype will be the name of the element type, with - * '[]*' appended to it. - * - * Then to use it, you just have to make sure that your structure pre-callback - * does push the size of the array in the cbps (using #gras_cbps_i_push), and - * you are set. - * - * But be remember that this is a stack. If you have two different pop_arr, you - * should push the second one first, so that the first one is on the top of the - * list when the first field gets transfered. - * - */ -gras_datadesc_type_t -gras_datadesc_ref_pop_arr(gras_datadesc_type_t element_type) -{ - int cpt=0; - gras_datadesc_type_t res,ddt2; - char *name = (char *) xbt_malloc(strlen(element_type->name) + 4); - - sprintf(name, "%s[]", element_type->name); - /* Make sure we are not trying to redefine a ddt with the same name */ - ddt2 = gras_datadesc_by_name_or_null(name); - - while (ddt2) { - free(name); - name=bprintf("%s[]_%d",element_type->name,cpt++); - ddt2=gras_datadesc_by_name_or_null(name); - } - - res = gras_datadesc_array_dyn(name, element_type, gras_datadesc_cb_pop); - - sprintf(name, "%s[]*", element_type->name); - cpt=0; - ddt2 = gras_datadesc_by_name_or_null(name); - while (ddt2) { - free(name); - name=bprintf("%s[]*_%d",element_type->name,cpt++); - ddt2=gras_datadesc_by_name_or_null(name); - } - - res = gras_datadesc_ref(name, res); - - free(name); - - return res; -} - -/* - *## - *## Constructor of container datatypes - *## - */ - -static void gras_datadesc_dynar_cb(gras_datadesc_type_t typedesc, - gras_cbps_t vars, void *data) -{ - gras_datadesc_type_t subtype; - xbt_dynar_t dynar = (xbt_dynar_t) data; - - memcpy(&dynar->free_f, &typedesc->extra, sizeof(dynar->free_f)); - - /* search for the elemsize in what we have. If elements are "int", typedesc got is "int[]*" */ - subtype = gras_dd_find_field(typedesc, "data")->type; - - /* this is now a ref to array of what we're looking for */ - subtype = subtype->category.ref_data.type; - subtype = subtype->category.array_data.type; - - DEBUG1("subtype is %s", subtype->name); - - dynar->elmsize = subtype->size[GRAS_THISARCH]; - dynar->size = dynar->used; - dynar->mutex = NULL; -} - -/** \brief Declare a new type being a dynar in which each elements are of the given type - * - * The type gets registered under the name "dynar(%s)_s", where %s is the name of the subtype. - * For example, a dynar of doubles will be called "dynar(double)_s" and a dynar of dynar of - * strings will be called "dynar(dynar(string)_s)_s". - * - * \param elm_t: the datadesc of the elements - * \param free_func: the function to use to free the elements when the dynar gets freed - */ -gras_datadesc_type_t -gras_datadesc_dynar(gras_datadesc_type_t elm_t, void_f_pvoid_t free_func) -{ - - char *buffname; - gras_datadesc_type_t res; - - asprintf(&buffname, "s_xbt_dynar_of_%s", elm_t->name); - - res = gras_datadesc_struct(buffname); - - gras_datadesc_struct_append(res, "size", - gras_datadesc_by_name("unsigned long int")); - - gras_datadesc_struct_append(res, "used", - gras_datadesc_by_name("unsigned long int")); - - gras_datadesc_struct_append(res, "elmsize", - gras_datadesc_by_name("unsigned long int")); - - gras_datadesc_struct_append(res, "data", gras_datadesc_ref_pop_arr(elm_t)); - - gras_datadesc_struct_append(res, "free_f", - gras_datadesc_by_name("function pointer")); - memcpy(res->extra, &free_func, sizeof(free_func)); - - gras_datadesc_struct_append(res, "mutex", - gras_datadesc_by_name("data pointer")); - - gras_datadesc_struct_close(res); - - gras_datadesc_cb_field_push(res, "used"); - gras_datadesc_cb_recv(res, &gras_datadesc_dynar_cb); - - /* build a ref to it */ - free(buffname); - asprintf(&buffname, "xbt_dynar_of_%s", elm_t->name); - res = gras_datadesc_ref(buffname, res); - free(buffname); - return res; -} - -#include "xbt/matrix.h" -static void gras_datadesc_matrix_cb(gras_datadesc_type_t typedesc, - gras_cbps_t vars, void *data) -{ - gras_datadesc_type_t subtype; - xbt_matrix_t matrix = (xbt_matrix_t) data; - - memcpy(&matrix->free_f, &typedesc->extra, sizeof(matrix->free_f)); - - /* search for the elemsize in what we have. If elements are "int", typedesc got is "int[]*" */ - subtype = gras_dd_find_field(typedesc, "data")->type; - - /* this is now a ref to array of what we're looking for */ - subtype = subtype->category.ref_data.type; - subtype = subtype->category.array_data.type; - - DEBUG1("subtype is %s", subtype->name); - - matrix->elmsize = subtype->size[GRAS_THISARCH]; -} - -gras_datadesc_type_t -gras_datadesc_matrix(gras_datadesc_type_t elm_t, void_f_pvoid_t const free_f) -{ - char *buffname; - gras_datadesc_type_t res; - - asprintf(&buffname, "s_xbt_matrix_t(%s)", elm_t->name); - res = gras_datadesc_struct(buffname); - - gras_datadesc_struct_append(res, "lines", - gras_datadesc_by_name("unsigned int")); - gras_datadesc_struct_append(res, "rows", - gras_datadesc_by_name("unsigned int")); - - gras_datadesc_struct_append(res, "elmsize", - gras_datadesc_by_name("unsigned long int")); - - gras_datadesc_struct_append(res, "data", gras_datadesc_ref_pop_arr(elm_t)); - gras_datadesc_struct_append(res, "free_f", - gras_datadesc_by_name("function pointer")); - gras_datadesc_struct_close(res); - - gras_datadesc_cb_field_push(res, "lines"); - gras_datadesc_cb_field_push_multiplier(res, "rows"); - - gras_datadesc_cb_recv(res, &gras_datadesc_matrix_cb); - memcpy(res->extra, &free_f, sizeof(free_f)); - - /* build a ref to it */ - free(buffname); - asprintf(&buffname, "xbt_matrix_t(%s)", elm_t->name); - res = gras_datadesc_ref(buffname, res); - free(buffname); - return res; -} - -gras_datadesc_type_t -gras_datadesc_import_nws(const char *name, - const DataDescriptor * desc, unsigned long howmany) -{ - THROW_UNIMPLEMENTED; -} - -/** - * (useful to push the sizes of the upcoming arrays, for example) - */ -void gras_datadesc_cb_send(gras_datadesc_type_t type, - gras_datadesc_type_cb_void_t send) -{ - type->send = send; -} - -/** - * (useful to put the function pointers to the rigth value, for example) - */ -void gras_datadesc_cb_recv(gras_datadesc_type_t type, - gras_datadesc_type_cb_void_t recv) -{ - type->recv = recv; -} - -/* - * gras_dd_find_field: - * - * Returns the type descriptor of the given field. Abort on error. - */ -static gras_dd_cat_field_t -gras_dd_find_field(gras_datadesc_type_t type, const char *field_name) -{ - xbt_dynar_t field_array; - - gras_dd_cat_field_t field = NULL; - unsigned int field_num; - - if (type->category_code == e_gras_datadesc_type_cat_union) { - field_array = type->category.union_data.fields; - } else if (type->category_code == e_gras_datadesc_type_cat_struct) { - field_array = type->category.struct_data.fields; - } else { - ERROR2("%s (%p) is not a struct nor an union. There is no field.", - type->name, (void *) type); - xbt_abort(); - } - xbt_dynar_foreach(field_array, field_num, field) { - if (!strcmp(field_name, field->name)) { - return field; - } - } - ERROR2("No field named '%s' in '%s'", field_name, type->name); - xbt_abort(); - -} - -/** - * The given datadesc must be a struct or union (abort if not). - * (useful to push the sizes of the upcoming arrays, for example) - */ -void gras_datadesc_cb_field_send(gras_datadesc_type_t type, - const char *field_name, - gras_datadesc_type_cb_void_t send) -{ - - gras_dd_cat_field_t field = gras_dd_find_field(type, field_name); - field->send = send; -} - - -/** - * The value, which must be an int, unsigned int, long int or unsigned long int - * is pushed to the stacks of sizes and can then be retrieved with - * \ref gras_datadesc_ref_pop_arr or directly with \ref gras_cbps_i_pop. - */ -void gras_datadesc_cb_field_push(gras_datadesc_type_t type, - const char *field_name) -{ - - gras_dd_cat_field_t field = gras_dd_find_field(type, field_name); - gras_datadesc_type_t sub_type = field->type; - - DEBUG3("add a PUSHy cb to '%s' field (type '%s') of '%s'", - field_name, sub_type->name, type->name); - if (!strcmp("int", sub_type->name)) { - field->send = gras_datadesc_cb_push_int; - } else if (!strcmp("unsigned int", sub_type->name)) { - field->send = gras_datadesc_cb_push_uint; - } else if (!strcmp("long int", sub_type->name)) { - field->send = gras_datadesc_cb_push_lint; - } else if (!strcmp("unsigned long int", sub_type->name)) { - field->send = gras_datadesc_cb_push_ulint; - } else { - ERROR1 - ("Field %s is not an int, unsigned int, long int neither unsigned long int", - sub_type->name); - xbt_abort(); - } -} - -/** - * Any previously pushed value is poped and the field value is multiplied to - * it. The result is then pushed back into the stack of sizes. It can then be - * retrieved with \ref gras_datadesc_ref_pop_arr or directly with \ref - * gras_cbps_i_pop. - * - * The field must be an int, unsigned int, long int or unsigned long int. - */ -void gras_datadesc_cb_field_push_multiplier(gras_datadesc_type_t type, - const char *field_name) -{ - - gras_dd_cat_field_t field = gras_dd_find_field(type, field_name); - gras_datadesc_type_t sub_type = field->type; - - DEBUG3("add a MPUSHy cb to '%s' field (type '%s') of '%s'", - field_name, sub_type->name, type->name); - if (!strcmp("int", sub_type->name)) { - field->send = gras_datadesc_cb_push_int_mult; - } else if (!strcmp("unsigned int", sub_type->name)) { - field->send = gras_datadesc_cb_push_uint_mult; - } else if (!strcmp("long int", sub_type->name)) { - field->send = gras_datadesc_cb_push_lint_mult; - } else if (!strcmp("unsigned long int", sub_type->name)) { - field->send = gras_datadesc_cb_push_ulint_mult; - } else { - ERROR1 - ("Field %s is not an int, unsigned int, long int neither unsigned long int", - sub_type->name); - xbt_abort(); - } -} - -/** - * The given datadesc must be a struct or union (abort if not). - * (useful to put the function pointers to the right value, for example) - */ -void gras_datadesc_cb_field_recv(gras_datadesc_type_t type, - const char *field_name, - gras_datadesc_type_cb_void_t recv) -{ - - gras_dd_cat_field_t field = gras_dd_find_field(type, field_name); - field->recv = recv; -} - -/* - * Free a datadesc. Should only be called at xbt_exit. - */ -void gras_datadesc_free(gras_datadesc_type_t * type) -{ - - DEBUG1("Let's free ddt %s", (*type)->name); - - switch ((*type)->category_code) { - case e_gras_datadesc_type_cat_scalar: - case e_gras_datadesc_type_cat_ref: - case e_gras_datadesc_type_cat_array: - /* nothing to free in there */ - break; - - case e_gras_datadesc_type_cat_struct: - xbt_dynar_free(&((*type)->category.struct_data.fields)); - break; - - case e_gras_datadesc_type_cat_union: - xbt_dynar_free(&((*type)->category.union_data.fields)); - break; - - default: - /* datadesc was invalid. Killing it is like euthanasy, I guess */ - break; - } - free((*type)->name); - free(*type); - type = NULL; -} - -/** - * gras_datadesc_type_cmp: - * - * Compares two datadesc types with the same semantic than strcmp. - * - * This comparison does not take the set headers into account (name and ID), - * but only the payload (actual type description). - */ -int gras_datadesc_type_cmp(const gras_datadesc_type_t d1, - const gras_datadesc_type_t d2) -{ - int ret; - unsigned int cpt; - gras_dd_cat_field_t field1, field2; - gras_datadesc_type_t field_desc_1, field_desc_2; - - if (d1 == d2) - return 0; /* easy optimization */ - - if (!d1 && d2) { - DEBUG0("ddt_cmp: !d1 && d2 => 1"); - return 1; - } - if (!d1 && !d2) { - DEBUG0("ddt_cmp: !d1 && !d2 => 0"); - return 0; - } - if (d1 && !d2) { - DEBUG0("ddt_cmp: d1 && !d2 => -1"); - return -1; - } - - for (cpt = 0; cpt < gras_arch_count; cpt++) { - if (d1->size[cpt] != d2->size[cpt]) { - DEBUG5("ddt_cmp: %s->size=%ld != %s->size=%ld (on %s)", - d1->name, d1->size[cpt], d2->name, d2->size[cpt], - gras_arches[cpt].name); - return d1->size[cpt] > d2->size[cpt] ? 1 : -1; - } - - if (d1->alignment[cpt] != d2->alignment[cpt]) { - DEBUG5("ddt_cmp: %s->alignment=%ld != %s->alignment=%ld (on %s)", - d1->name, d1->alignment[cpt], d2->name, d2->alignment[cpt], - gras_arches[cpt].name); - return d1->alignment[cpt] > d2->alignment[cpt] ? 1 : -1; - } - - if (d1->aligned_size[cpt] != d2->aligned_size[cpt]) { - DEBUG5 - ("ddt_cmp: %s->aligned_size=%ld != %s->aligned_size=%ld (on %s)", - d1->name, d1->aligned_size[cpt], d2->name, d2->aligned_size[cpt], - gras_arches[cpt].name); - return d1->aligned_size[cpt] > d2->aligned_size[cpt] ? 1 : -1; - } - } - - if (d1->category_code != d2->category_code) { - DEBUG4("ddt_cmp: %s->cat=%s != %s->cat=%s", - d1->name, gras_datadesc_cat_names[d1->category_code], - d2->name, gras_datadesc_cat_names[d2->category_code]); - return d1->category_code > d2->category_code ? 1 : -1; - } - - if (d1->send != d2->send) { - DEBUG4("ddt_cmp: %s->send=%p != %s->send=%p", - d1->name, (void *) d1->send, d2->name, (void *) d2->send); - return 1; /* ISO C forbids ordered comparisons of pointers to functions */ - } - - if (d1->recv != d2->recv) { - DEBUG4("ddt_cmp: %s->recv=%p != %s->recv=%p", - d1->name, (void *) d1->recv, d2->name, (void *) d2->recv); - return 1; /* ISO C forbids ordered comparisons of pointers to functions */ - } - - switch (d1->category_code) { - case e_gras_datadesc_type_cat_scalar: - if (d1->category.scalar_data.encoding != - d2->category.scalar_data.encoding) - return d1->category.scalar_data.encoding > - d2->category.scalar_data.encoding ? 1 : -1; - break; - - case e_gras_datadesc_type_cat_struct: - if (xbt_dynar_length(d1->category.struct_data.fields) != - xbt_dynar_length(d2->category.struct_data.fields)) { - DEBUG4("ddt_cmp: %s (having %lu fields) != %s (having %lu fields)", - d1->name, xbt_dynar_length(d1->category.struct_data.fields), - d2->name, xbt_dynar_length(d2->category.struct_data.fields)); - - return xbt_dynar_length(d1->category.struct_data.fields) > - xbt_dynar_length(d2->category.struct_data.fields) ? 1 : -1; - } - xbt_dynar_foreach(d1->category.struct_data.fields, cpt, field1) { - - field2 = - xbt_dynar_get_as(d2->category.struct_data.fields, cpt, - gras_dd_cat_field_t); - field_desc_1 = field1->type; - field_desc_2 = field2->type; - ret = gras_datadesc_type_cmp(field_desc_1, field_desc_2); - if (ret) { - DEBUG6("%s->field[%d]=%s != %s->field[%d]=%s", - d1->name, cpt, field1->name, d2->name, cpt, field2->name); - return ret; - } - - } - break; - - case e_gras_datadesc_type_cat_union: - if (d1->category.union_data.selector != d2->category.union_data.selector) - return 1; /* ISO C forbids ordered comparisons of pointers to functions */ - - if (xbt_dynar_length(d1->category.union_data.fields) != - xbt_dynar_length(d2->category.union_data.fields)) - return xbt_dynar_length(d1->category.union_data.fields) > - xbt_dynar_length(d2->category.union_data.fields) ? 1 : -1; - - xbt_dynar_foreach(d1->category.union_data.fields, cpt, field1) { - - field2 = - xbt_dynar_get_as(d2->category.union_data.fields, cpt, - gras_dd_cat_field_t); - field_desc_1 = field1->type; - field_desc_2 = field2->type; - ret = gras_datadesc_type_cmp(field_desc_1, field_desc_2); - if (ret) - return ret; - - } - break; - - - case e_gras_datadesc_type_cat_ref: - if (d1->category.ref_data.selector != d2->category.ref_data.selector) - return 1; /* ISO C forbids ordered comparisons of pointers to functions */ - - if (d1->category.ref_data.type != d2->category.ref_data.type) - return d1->category.ref_data.type > d2->category.ref_data.type ? 1 : -1; - break; - - case e_gras_datadesc_type_cat_array: - if (d1->category.array_data.type != d2->category.array_data.type) - return d1->category.array_data.type > - d2->category.array_data.type ? 1 : -1; - - if (d1->category.array_data.fixed_size != - d2->category.array_data.fixed_size) - return d1->category.array_data.fixed_size > - d2->category.array_data.fixed_size ? 1 : -1; - - if (d1->category.array_data.dynamic_size != - d2->category.array_data.dynamic_size) - return 1; /* ISO C forbids ordered comparisons of pointers to functions */ - - break; - - default: - /* two stupidly created ddt are equally stupid ;) */ - break; - } - return 0; - -} +/* ddt_new - creation/deletion of datatypes structs (private to this module)*/ + +/* Copyright (c) 2004, 2005, 2006, 2007, 2009, 2010. The SimGrid Team. + * All rights reserved. */ + +/* 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. */ + +#include "xbt/misc.h" /* min()/max() */ +#include "xbt/ex.h" +#include "gras/DataDesc/datadesc_private.h" + +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_ddt_create, gras_ddt, + "Creating new datadescriptions"); + +/*** prototypes ***/ +static gras_dd_cat_field_t +gras_dd_find_field(gras_datadesc_type_t type, const char *field_name); +/** + * gras_ddt_freev: + * + * gime that memory back, dude. I mean it. + */ +void gras_ddt_freev(void *ddt) +{ + gras_datadesc_type_t type = (gras_datadesc_type_t) ddt; + + if (type) { + gras_datadesc_free(&type); + } +} + +static gras_datadesc_type_t gras_ddt_new(const char *name) +{ + gras_datadesc_type_t res; + + XBT_IN1("(%s)", name); + res = xbt_new0(s_gras_datadesc_type_t, 1); + + res->name = (char *) strdup(name); + res->name_len = strlen(name); + res->cycle = 0; + + xbt_set_add(gras_datadesc_set_local, (xbt_set_elm_t) res, gras_ddt_freev); + XBT_OUT; + return res; +} + +/** @brief retrieve an existing message type from its name (or NULL if it does not exist). */ +gras_datadesc_type_t gras_datadesc_by_name_or_null(const char *name) +{ + xbt_ex_t e; + gras_datadesc_type_t res = NULL; + + TRY { + res = gras_datadesc_by_name(name); + } CATCH(e) { + res = NULL; + xbt_ex_free(e); + } + return res; +} + +/** + * Search the given datadesc (or raises an exception if it can't be found) + */ +gras_datadesc_type_t gras_datadesc_by_name(const char *name) +{ + xbt_ex_t e; + gras_datadesc_type_t res = NULL; + volatile int found = 0; + TRY { + res = + (gras_datadesc_type_t) xbt_set_get_by_name(gras_datadesc_set_local, + name); + found = 1; + } CATCH(e) { + if (e.category != not_found_error) + RETHROW; + xbt_ex_free(e); + } + if (!found) + THROW1(not_found_error, 0, "No registred datatype of that name: %s", + name); + + return res; +} + +/** + * Retrieve a type from its code (or NULL if not found) + */ +gras_datadesc_type_t gras_datadesc_by_id(long int code) +{ + xbt_ex_t e; + gras_datadesc_type_t res = NULL; + TRY { + res = + (gras_datadesc_type_t) xbt_set_get_by_id(gras_datadesc_set_local, code); + } CATCH(e) { + if (e.category != not_found_error) + RETHROW; + xbt_ex_free(e); + res = NULL; + } + return res; +} + +/** + * Create a new scalar and give a pointer to it + */ +gras_datadesc_type_t +gras_datadesc_scalar(const char *name, + gras_ddt_scalar_type_t type, + enum e_gras_dd_scalar_encoding encoding) +{ + + gras_datadesc_type_t res; + long int arch; + + XBT_IN; + res = gras_datadesc_by_name_or_null(name); + if (res) { + xbt_assert1(res->category_code == e_gras_datadesc_type_cat_scalar, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.scalar_data.encoding == encoding, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.scalar_data.type == type, + "Redefinition of type %s does not match", name); + VERB1("Discarding redefinition of %s", name); + return res; + } + res = gras_ddt_new(name); + + for (arch = 0; arch < gras_arch_count; arch++) { + res->size[arch] = gras_arches[arch].sizeofs[type]; + res->alignment[arch] = gras_arches[arch].boundaries[type]; + res->aligned_size[arch] = + ddt_aligned(res->size[arch], res->alignment[arch]); + } + + res->category_code = e_gras_datadesc_type_cat_scalar; + res->category.scalar_data.encoding = encoding; + res->category.scalar_data.type = type; + XBT_OUT; + + return res; +} + + +/** Frees one struct or union field */ +void gras_dd_cat_field_free(void *f) +{ + gras_dd_cat_field_t field = *(gras_dd_cat_field_t *) f; + XBT_IN; + if (field) { + if (field->name) + free(field->name); + free(field); + } + XBT_OUT; +} + +/** \brief Declare a new structure description */ +gras_datadesc_type_t gras_datadesc_struct(const char *name) +{ + + gras_datadesc_type_t res; + long int arch; + + XBT_IN1("(%s)", name); + res = gras_datadesc_by_name_or_null(name); + if (res) { + /* FIXME: Check that field redefinition matches */ + xbt_assert1(res->category_code == e_gras_datadesc_type_cat_struct, + "Redefinition of type %s does not match", name); + VERB1("Discarding redefinition of %s", name); + return res; + } + res = gras_ddt_new(name); + + for (arch = 0; arch < gras_arch_count; arch++) { + res->size[arch] = 0; + res->alignment[arch] = 0; + res->aligned_size[arch] = 0; + } + res->category_code = e_gras_datadesc_type_cat_struct; + res->category.struct_data.fields = + xbt_dynar_new(sizeof(gras_dd_cat_field_t), gras_dd_cat_field_free); + + XBT_OUT; + return res; +} + +/** \brief Append a new field to a structure description */ +void +gras_datadesc_struct_append(gras_datadesc_type_t struct_type, + const char *name, gras_datadesc_type_t field_type) +{ + + gras_dd_cat_field_t field; + int arch; + + xbt_assert2(field_type, + "Cannot add the field '%s' into struct '%s': its type is NULL", + name, struct_type->name); + XBT_IN3("(%s %s.%s;)", field_type->name, struct_type->name, name); + if (struct_type->category.struct_data.closed) { + VERB1 + ("Ignoring request to add field to struct %s (closed. Redefinition?)", + struct_type->name); + return; + } + + xbt_assert1(field_type->size[GRAS_THISARCH] >= 0, + "Cannot add a dynamically sized field in structure %s", + struct_type->name); + + field = xbt_new(s_gras_dd_cat_field_t, 1); + field->name = (char *) strdup(name); + + DEBUG0("----------------"); + DEBUG3("PRE s={size=%ld,align=%ld,asize=%ld}", + struct_type->size[GRAS_THISARCH], + struct_type->alignment[GRAS_THISARCH], + struct_type->aligned_size[GRAS_THISARCH]); + + + for (arch = 0; arch < gras_arch_count; arch++) { + field->offset[arch] = ddt_aligned(struct_type->size[arch], + field_type->alignment[arch]); + + struct_type->size[arch] = field->offset[arch] + field_type->size[arch]; + struct_type->alignment[arch] = max(struct_type->alignment[arch], + field_type->alignment[arch]); + struct_type->aligned_size[arch] = ddt_aligned(struct_type->size[arch], + struct_type->alignment + [arch]); + } + field->type = field_type; + field->send = NULL; + field->recv = NULL; + + xbt_dynar_push(struct_type->category.struct_data.fields, &field); + + DEBUG3("Push a %s into %s at offset %ld.", + field_type->name, struct_type->name, field->offset[GRAS_THISARCH]); + DEBUG3(" f={size=%ld,align=%ld,asize=%ld}", + field_type->size[GRAS_THISARCH], + field_type->alignment[GRAS_THISARCH], + field_type->aligned_size[GRAS_THISARCH]); + DEBUG3(" s={size=%ld,align=%ld,asize=%ld}", + struct_type->size[GRAS_THISARCH], + struct_type->alignment[GRAS_THISARCH], + struct_type->aligned_size[GRAS_THISARCH]); + XBT_OUT; +} + +/** \brief Close a structure description + * + * No new field can be added afterward, and it is mandatory to close the structure before using it. + */ +void gras_datadesc_struct_close(gras_datadesc_type_t struct_type) +{ + int arch; + XBT_IN; + struct_type->category.struct_data.closed = 1; + for (arch = 0; arch < gras_arch_count; arch++) { + struct_type->size[arch] = struct_type->aligned_size[arch]; + } + DEBUG4("structure %s closed. size=%ld,align=%ld,asize=%ld", + struct_type->name, + struct_type->size[GRAS_THISARCH], + struct_type->alignment[GRAS_THISARCH], + struct_type->aligned_size[GRAS_THISARCH]); +} + +/** + * gras_datadesc_cycle_set: + * + * Tell GRAS that the pointers of the type described by ddt may present + * some loop, and that the cycle detection mechanism is needed. + * + * Note that setting this option when not needed have a rather bad effect + * on the performance (several times slower on big data). + */ +void gras_datadesc_cycle_set(gras_datadesc_type_t ddt) +{ + ddt->cycle = 1; +} + +/** + * gras_datadesc_cycle_unset: + * + * Tell GRAS that the pointers of the type described by ddt do not present + * any loop and that cycle detection mechanism are not needed. + * (default) + */ +void gras_datadesc_cycle_unset(gras_datadesc_type_t ddt) +{ + ddt->cycle = 0; +} + +/** \brief Declare a new union description */ +gras_datadesc_type_t +gras_datadesc_union(const char *name, gras_datadesc_type_cb_int_t selector) +{ + + gras_datadesc_type_t res; + int arch; + + XBT_IN1("(%s)", name); + xbt_assert0(selector, + "Attempt to creat an union without field_count function"); + + res = gras_datadesc_by_name_or_null(name); + if (res) { + /* FIXME: Check that field redefinition matches */ + xbt_assert1(res->category_code == e_gras_datadesc_type_cat_union, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.union_data.selector == selector, + "Redefinition of type %s does not match", name); + VERB1("Discarding redefinition of %s", name); + return res; + } + + res = gras_ddt_new(name); + + for (arch = 0; arch < gras_arch_count; arch++) { + res->size[arch] = 0; + res->alignment[arch] = 0; + res->aligned_size[arch] = 0; + } + + res->category_code = e_gras_datadesc_type_cat_union; + res->category.union_data.fields = + xbt_dynar_new(sizeof(gras_dd_cat_field_t *), gras_dd_cat_field_free); + res->category.union_data.selector = selector; + + return res; +} + +/** \brief Append a new field to an union description */ +void gras_datadesc_union_append(gras_datadesc_type_t union_type, + const char *name, + gras_datadesc_type_t field_type) +{ + + gras_dd_cat_field_t field; + int arch; + + XBT_IN3("(%s %s.%s;)", field_type->name, union_type->name, name); + xbt_assert1(field_type->size[GRAS_THISARCH] >= 0, + "Cannot add a dynamically sized field in union %s", + union_type->name); + + if (union_type->category.union_data.closed) { + VERB1("Ignoring request to add field to union %s (closed)", + union_type->name); + return; + } + + field = xbt_new0(s_gras_dd_cat_field_t, 1); + + field->name = (char *) strdup(name); + field->type = field_type; + /* All offset are left to 0 in an union */ + + xbt_dynar_push(union_type->category.union_data.fields, &field); + + for (arch = 0; arch < gras_arch_count; arch++) { + union_type->size[arch] = max(union_type->size[arch], + field_type->size[arch]); + union_type->alignment[arch] = max(union_type->alignment[arch], + field_type->alignment[arch]); + union_type->aligned_size[arch] = ddt_aligned(union_type->size[arch], + union_type->alignment[arch]); + } +} + + +/** \brief Close an union description + * + * No new field can be added afterward, and it is mandatory to close the union before using it. + */ +void gras_datadesc_union_close(gras_datadesc_type_t union_type) +{ + union_type->category.union_data.closed = 1; +} + +/** \brief Copy a type under another name + * + * This may reveal useful to circumvent parsing macro limitations + */ +gras_datadesc_type_t +gras_datadesc_copy(const char *name, gras_datadesc_type_t copied) +{ + + gras_datadesc_type_t res = gras_ddt_new(name); + char *name_cpy = res->name; + + memcpy(res, copied, sizeof(s_gras_datadesc_type_t)); + res->name = name_cpy; + return res; +} + +/** \brief Declare a new type being a reference to the one passed in arg */ +gras_datadesc_type_t +gras_datadesc_ref(const char *name, gras_datadesc_type_t referenced_type) +{ + + gras_datadesc_type_t res; + gras_datadesc_type_t pointer_type = gras_datadesc_by_name("data pointer"); + int arch; + + XBT_IN1("(%s)", name); + res = gras_datadesc_by_name_or_null(name); + if (res) { + xbt_assert1(res->category_code == e_gras_datadesc_type_cat_ref, + "Redefinition of %s does not match", name); + xbt_assert1(res->category.ref_data.type == referenced_type, + "Redefinition of %s does not match", name); + xbt_assert1(res->category.ref_data.selector == NULL, + "Redefinition of %s does not match", name); + VERB1("Discarding redefinition of %s", name); + return res; + } + + res = gras_ddt_new(name); + + xbt_assert0(pointer_type, "Cannot get the description of data pointer"); + + for (arch = 0; arch < gras_arch_count; arch++) { + res->size[arch] = pointer_type->size[arch]; + res->alignment[arch] = pointer_type->alignment[arch]; + res->aligned_size[arch] = pointer_type->aligned_size[arch]; + } + + res->category_code = e_gras_datadesc_type_cat_ref; + res->category.ref_data.type = referenced_type; + res->category.ref_data.selector = NULL; + + return res; +} + +/** \brief Declare a new type being a generic reference. + * + * The callback passed in argument is to be used to select which type is currently used. + * So, when GRAS wants to send a generic reference, it passes the current data to the selector + * callback and expects it to return the type description to use. + */ +gras_datadesc_type_t +gras_datadesc_ref_generic(const char *name, gras_datadesc_selector_t selector) +{ + + gras_datadesc_type_t res; + gras_datadesc_type_t pointer_type = gras_datadesc_by_name("data pointer"); + int arch; + + XBT_IN1("(%s)", name); + res = gras_datadesc_by_name_or_null(name); + + if (res) { + xbt_assert1(res->category_code == e_gras_datadesc_type_cat_ref, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.ref_data.type == NULL, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.ref_data.selector == selector, + "Redefinition of type %s does not match", name); + VERB1("Discarding redefinition of %s", name); + return res; + } + res = gras_ddt_new(name); + + xbt_assert0(pointer_type, "Cannot get the description of data pointer"); + + for (arch = 0; arch < gras_arch_count; arch++) { + res->size[arch] = pointer_type->size[arch]; + res->alignment[arch] = pointer_type->alignment[arch]; + res->aligned_size[arch] = pointer_type->aligned_size[arch]; + } + + res->category_code = e_gras_datadesc_type_cat_ref; + + res->category.ref_data.type = NULL; + res->category.ref_data.selector = selector; + + return res; +} + +/** \brief Declare a new type being an array of fixed size and content */ +gras_datadesc_type_t +gras_datadesc_array_fixed(const char *name, + gras_datadesc_type_t element_type, + long int fixed_size) +{ + + gras_datadesc_type_t res; + int arch; + + XBT_IN1("(%s)", name); + res = gras_datadesc_by_name_or_null(name); + if (res) { + xbt_assert1(res->category_code == e_gras_datadesc_type_cat_array, + "Redefinition of type %s does not match", name); + + if (res->category.array_data.type != element_type) { + ERROR1("Redefinition of type %s does not match: array elements differ", + name); + gras_datadesc_type_dump(res->category.array_data.type); + gras_datadesc_type_dump(element_type); + } + + xbt_assert1(res->category.array_data.fixed_size == fixed_size, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.array_data.dynamic_size == NULL, + "Redefinition of type %s does not match", name); + VERB1("Discarding redefinition of %s", name); + + return res; + } + res = gras_ddt_new(name); + + xbt_assert1(fixed_size >= 0, "'%s' is a array of negative fixed size", + name); + for (arch = 0; arch < gras_arch_count; arch++) { + res->size[arch] = fixed_size * element_type->aligned_size[arch]; + res->alignment[arch] = element_type->alignment[arch]; + res->aligned_size[arch] = res->size[arch]; + } + + res->category_code = e_gras_datadesc_type_cat_array; + + res->category.array_data.type = element_type; + res->category.array_data.fixed_size = fixed_size; + res->category.array_data.dynamic_size = NULL; + + return res; +} + +/** \brief Declare a new type being an array of fixed size, but accepting several content types. */ +gras_datadesc_type_t gras_datadesc_array_dyn(const char *name, + gras_datadesc_type_t + element_type, + gras_datadesc_type_cb_int_t + dynamic_size) +{ + + gras_datadesc_type_t res; + int arch; + + XBT_IN1("(%s)", name); + xbt_assert1(dynamic_size, + "'%s' is a dynamic array without size discriminant", name); + + res = gras_datadesc_by_name_or_null(name); + if (res) { + xbt_assert1(res->category_code == e_gras_datadesc_type_cat_array, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.array_data.type == element_type, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.array_data.fixed_size == -1, + "Redefinition of type %s does not match", name); + xbt_assert1(res->category.array_data.dynamic_size == dynamic_size, + "Redefinition of type %s does not match", name); + VERB1("Discarding redefinition of %s", name); + + return res; + } + + res = gras_ddt_new(name); + + for (arch = 0; arch < gras_arch_count; arch++) { + res->size[arch] = 0; /* make sure it indicates "dynamic" */ + res->alignment[arch] = element_type->alignment[arch]; + res->aligned_size[arch] = 0; /*FIXME: That was so in GS, but looks stupid */ + } + + res->category_code = e_gras_datadesc_type_cat_array; + + res->category.array_data.type = element_type; + res->category.array_data.fixed_size = -1; + res->category.array_data.dynamic_size = dynamic_size; + + return res; +} + +/** \brief Declare a new type being an array which size can be found with \ref gras_cbps_i_pop + * + * Most of the time, you want to include a reference in your structure which + * is a pointer to a dynamic array whose size is fixed by another field of + * your structure. + * + * This case pops up so often that this function was created to take care of + * this case. It creates a dynamic array type whose size is poped from the + * current cbps, and then create a reference to it. + * + * The name of the created datatype will be the name of the element type, with + * '[]*' appended to it. + * + * Then to use it, you just have to make sure that your structure pre-callback + * does push the size of the array in the cbps (using #gras_cbps_i_push), and + * you are set. + * + * But be remember that this is a stack. If you have two different pop_arr, you + * should push the second one first, so that the first one is on the top of the + * list when the first field gets transfered. + * + */ +gras_datadesc_type_t +gras_datadesc_ref_pop_arr(gras_datadesc_type_t element_type) +{ + + gras_datadesc_type_t res,ddt2; + char *name = (char *) xbt_malloc(strlen(element_type->name) + 4); + + sprintf(name, "%s[]", element_type->name); + /* Make sure we are not trying to redefine a ddt with the same name */ + ddt2 = gras_datadesc_by_name_or_null(name); + int cpt=0; + while (ddt2) { + free(name); + name=bprintf("%s[]_%d",element_type->name,cpt++); + ddt2=gras_datadesc_by_name_or_null(name); + } + + res = gras_datadesc_array_dyn(name, element_type, gras_datadesc_cb_pop); + + sprintf(name, "%s[]*", element_type->name); + cpt=0; + ddt2 = gras_datadesc_by_name_or_null(name); + while (ddt2) { + free(name); + name=bprintf("%s[]*_%d",element_type->name,cpt++); + ddt2=gras_datadesc_by_name_or_null(name); + } + + res = gras_datadesc_ref(name, res); + + free(name); + + return res; +} + +/* + *## + *## Constructor of container datatypes + *## + */ + +static void gras_datadesc_dynar_cb(gras_datadesc_type_t typedesc, + gras_cbps_t vars, void *data) +{ + gras_datadesc_type_t subtype; + xbt_dynar_t dynar = (xbt_dynar_t) data; + + memcpy(&dynar->free_f, &typedesc->extra, sizeof(dynar->free_f)); + + /* search for the elemsize in what we have. If elements are "int", typedesc got is "int[]*" */ + subtype = gras_dd_find_field(typedesc, "data")->type; + + /* this is now a ref to array of what we're looking for */ + subtype = subtype->category.ref_data.type; + subtype = subtype->category.array_data.type; + + DEBUG1("subtype is %s", subtype->name); + + dynar->elmsize = subtype->size[GRAS_THISARCH]; + dynar->size = dynar->used; + dynar->mutex = NULL; +} + +/** \brief Declare a new type being a dynar in which each elements are of the given type + * + * The type gets registered under the name "dynar(%s)_s", where %s is the name of the subtype. + * For example, a dynar of doubles will be called "dynar(double)_s" and a dynar of dynar of + * strings will be called "dynar(dynar(string)_s)_s". + * + * \param elm_t: the datadesc of the elements + * \param free_func: the function to use to free the elements when the dynar gets freed + */ +gras_datadesc_type_t +gras_datadesc_dynar(gras_datadesc_type_t elm_t, void_f_pvoid_t free_func) +{ + + char *buffname; + gras_datadesc_type_t res; + + asprintf(&buffname, "s_xbt_dynar_of_%s", elm_t->name); + + res = gras_datadesc_struct(buffname); + + gras_datadesc_struct_append(res, "size", + gras_datadesc_by_name("unsigned long int")); + + gras_datadesc_struct_append(res, "used", + gras_datadesc_by_name("unsigned long int")); + + gras_datadesc_struct_append(res, "elmsize", + gras_datadesc_by_name("unsigned long int")); + + gras_datadesc_struct_append(res, "data", gras_datadesc_ref_pop_arr(elm_t)); + + gras_datadesc_struct_append(res, "free_f", + gras_datadesc_by_name("function pointer")); + memcpy(res->extra, &free_func, sizeof(free_func)); + + gras_datadesc_struct_append(res, "mutex", + gras_datadesc_by_name("data pointer")); + + gras_datadesc_struct_close(res); + + gras_datadesc_cb_field_push(res, "used"); + gras_datadesc_cb_recv(res, &gras_datadesc_dynar_cb); + + /* build a ref to it */ + free(buffname); + asprintf(&buffname, "xbt_dynar_of_%s", elm_t->name); + res = gras_datadesc_ref(buffname, res); + free(buffname); + return res; +} + +#include "xbt/matrix.h" +static void gras_datadesc_matrix_cb(gras_datadesc_type_t typedesc, + gras_cbps_t vars, void *data) +{ + gras_datadesc_type_t subtype; + xbt_matrix_t matrix = (xbt_matrix_t) data; + + memcpy(&matrix->free_f, &typedesc->extra, sizeof(matrix->free_f)); + + /* search for the elemsize in what we have. If elements are "int", typedesc got is "int[]*" */ + subtype = gras_dd_find_field(typedesc, "data")->type; + + /* this is now a ref to array of what we're looking for */ + subtype = subtype->category.ref_data.type; + subtype = subtype->category.array_data.type; + + DEBUG1("subtype is %s", subtype->name); + + matrix->elmsize = subtype->size[GRAS_THISARCH]; +} + +gras_datadesc_type_t +gras_datadesc_matrix(gras_datadesc_type_t elm_t, void_f_pvoid_t const free_f) +{ + char *buffname; + gras_datadesc_type_t res; + + asprintf(&buffname, "s_xbt_matrix_t(%s)", elm_t->name); + res = gras_datadesc_struct(buffname); + + gras_datadesc_struct_append(res, "lines", + gras_datadesc_by_name("unsigned int")); + gras_datadesc_struct_append(res, "rows", + gras_datadesc_by_name("unsigned int")); + + gras_datadesc_struct_append(res, "elmsize", + gras_datadesc_by_name("unsigned long int")); + + gras_datadesc_struct_append(res, "data", gras_datadesc_ref_pop_arr(elm_t)); + gras_datadesc_struct_append(res, "free_f", + gras_datadesc_by_name("function pointer")); + gras_datadesc_struct_close(res); + + gras_datadesc_cb_field_push(res, "lines"); + gras_datadesc_cb_field_push_multiplier(res, "rows"); + + gras_datadesc_cb_recv(res, &gras_datadesc_matrix_cb); + memcpy(res->extra, &free_f, sizeof(free_f)); + + /* build a ref to it */ + free(buffname); + asprintf(&buffname, "xbt_matrix_t(%s)", elm_t->name); + res = gras_datadesc_ref(buffname, res); + free(buffname); + return res; +} + +gras_datadesc_type_t +gras_datadesc_import_nws(const char *name, + const DataDescriptor * desc, unsigned long howmany) +{ + THROW_UNIMPLEMENTED; +} + +/** + * (useful to push the sizes of the upcoming arrays, for example) + */ +void gras_datadesc_cb_send(gras_datadesc_type_t type, + gras_datadesc_type_cb_void_t send) +{ + type->send = send; +} + +/** + * (useful to put the function pointers to the rigth value, for example) + */ +void gras_datadesc_cb_recv(gras_datadesc_type_t type, + gras_datadesc_type_cb_void_t recv) +{ + type->recv = recv; +} + +/* + * gras_dd_find_field: + * + * Returns the type descriptor of the given field. Abort on error. + */ +static gras_dd_cat_field_t +gras_dd_find_field(gras_datadesc_type_t type, const char *field_name) +{ + xbt_dynar_t field_array; + + gras_dd_cat_field_t field = NULL; + unsigned int field_num; + + if (type->category_code == e_gras_datadesc_type_cat_union) { + field_array = type->category.union_data.fields; + } else if (type->category_code == e_gras_datadesc_type_cat_struct) { + field_array = type->category.struct_data.fields; + } else { + ERROR2("%s (%p) is not a struct nor an union. There is no field.", + type->name, (void *) type); + xbt_abort(); + } + xbt_dynar_foreach(field_array, field_num, field) { + if (!strcmp(field_name, field->name)) { + return field; + } + } + ERROR2("No field named '%s' in '%s'", field_name, type->name); + xbt_abort(); + +} + +/** + * The given datadesc must be a struct or union (abort if not). + * (useful to push the sizes of the upcoming arrays, for example) + */ +void gras_datadesc_cb_field_send(gras_datadesc_type_t type, + const char *field_name, + gras_datadesc_type_cb_void_t send) +{ + + gras_dd_cat_field_t field = gras_dd_find_field(type, field_name); + field->send = send; +} + + +/** + * The value, which must be an int, unsigned int, long int or unsigned long int + * is pushed to the stacks of sizes and can then be retrieved with + * \ref gras_datadesc_ref_pop_arr or directly with \ref gras_cbps_i_pop. + */ +void gras_datadesc_cb_field_push(gras_datadesc_type_t type, + const char *field_name) +{ + + gras_dd_cat_field_t field = gras_dd_find_field(type, field_name); + gras_datadesc_type_t sub_type = field->type; + + DEBUG3("add a PUSHy cb to '%s' field (type '%s') of '%s'", + field_name, sub_type->name, type->name); + if (!strcmp("int", sub_type->name)) { + field->send = gras_datadesc_cb_push_int; + } else if (!strcmp("unsigned int", sub_type->name)) { + field->send = gras_datadesc_cb_push_uint; + } else if (!strcmp("long int", sub_type->name)) { + field->send = gras_datadesc_cb_push_lint; + } else if (!strcmp("unsigned long int", sub_type->name)) { + field->send = gras_datadesc_cb_push_ulint; + } else { + ERROR1 + ("Field %s is not an int, unsigned int, long int neither unsigned long int", + sub_type->name); + xbt_abort(); + } +} + +/** + * Any previously pushed value is poped and the field value is multiplied to + * it. The result is then pushed back into the stack of sizes. It can then be + * retrieved with \ref gras_datadesc_ref_pop_arr or directly with \ref + * gras_cbps_i_pop. + * + * The field must be an int, unsigned int, long int or unsigned long int. + */ +void gras_datadesc_cb_field_push_multiplier(gras_datadesc_type_t type, + const char *field_name) +{ + + gras_dd_cat_field_t field = gras_dd_find_field(type, field_name); + gras_datadesc_type_t sub_type = field->type; + + DEBUG3("add a MPUSHy cb to '%s' field (type '%s') of '%s'", + field_name, sub_type->name, type->name); + if (!strcmp("int", sub_type->name)) { + field->send = gras_datadesc_cb_push_int_mult; + } else if (!strcmp("unsigned int", sub_type->name)) { + field->send = gras_datadesc_cb_push_uint_mult; + } else if (!strcmp("long int", sub_type->name)) { + field->send = gras_datadesc_cb_push_lint_mult; + } else if (!strcmp("unsigned long int", sub_type->name)) { + field->send = gras_datadesc_cb_push_ulint_mult; + } else { + ERROR1 + ("Field %s is not an int, unsigned int, long int neither unsigned long int", + sub_type->name); + xbt_abort(); + } +} + +/** + * The given datadesc must be a struct or union (abort if not). + * (useful to put the function pointers to the right value, for example) + */ +void gras_datadesc_cb_field_recv(gras_datadesc_type_t type, + const char *field_name, + gras_datadesc_type_cb_void_t recv) +{ + + gras_dd_cat_field_t field = gras_dd_find_field(type, field_name); + field->recv = recv; +} + +/* + * Free a datadesc. Should only be called at xbt_exit. + */ +void gras_datadesc_free(gras_datadesc_type_t * type) +{ + + DEBUG1("Let's free ddt %s", (*type)->name); + + switch ((*type)->category_code) { + case e_gras_datadesc_type_cat_scalar: + case e_gras_datadesc_type_cat_ref: + case e_gras_datadesc_type_cat_array: + /* nothing to free in there */ + break; + + case e_gras_datadesc_type_cat_struct: + xbt_dynar_free(&((*type)->category.struct_data.fields)); + break; + + case e_gras_datadesc_type_cat_union: + xbt_dynar_free(&((*type)->category.union_data.fields)); + break; + + default: + /* datadesc was invalid. Killing it is like euthanasy, I guess */ + break; + } + free((*type)->name); + free(*type); + type = NULL; +} + +/** + * gras_datadesc_type_cmp: + * + * Compares two datadesc types with the same semantic than strcmp. + * + * This comparison does not take the set headers into account (name and ID), + * but only the payload (actual type description). + */ +int gras_datadesc_type_cmp(const gras_datadesc_type_t d1, + const gras_datadesc_type_t d2) +{ + int ret; + unsigned int cpt; + gras_dd_cat_field_t field1, field2; + gras_datadesc_type_t field_desc_1, field_desc_2; + + if (d1 == d2) + return 0; /* easy optimization */ + + if (!d1 && d2) { + DEBUG0("ddt_cmp: !d1 && d2 => 1"); + return 1; + } + if (!d1 && !d2) { + DEBUG0("ddt_cmp: !d1 && !d2 => 0"); + return 0; + } + if (d1 && !d2) { + DEBUG0("ddt_cmp: d1 && !d2 => -1"); + return -1; + } + + for (cpt = 0; cpt < gras_arch_count; cpt++) { + if (d1->size[cpt] != d2->size[cpt]) { + DEBUG5("ddt_cmp: %s->size=%ld != %s->size=%ld (on %s)", + d1->name, d1->size[cpt], d2->name, d2->size[cpt], + gras_arches[cpt].name); + return d1->size[cpt] > d2->size[cpt] ? 1 : -1; + } + + if (d1->alignment[cpt] != d2->alignment[cpt]) { + DEBUG5("ddt_cmp: %s->alignment=%ld != %s->alignment=%ld (on %s)", + d1->name, d1->alignment[cpt], d2->name, d2->alignment[cpt], + gras_arches[cpt].name); + return d1->alignment[cpt] > d2->alignment[cpt] ? 1 : -1; + } + + if (d1->aligned_size[cpt] != d2->aligned_size[cpt]) { + DEBUG5 + ("ddt_cmp: %s->aligned_size=%ld != %s->aligned_size=%ld (on %s)", + d1->name, d1->aligned_size[cpt], d2->name, d2->aligned_size[cpt], + gras_arches[cpt].name); + return d1->aligned_size[cpt] > d2->aligned_size[cpt] ? 1 : -1; + } + } + + if (d1->category_code != d2->category_code) { + DEBUG4("ddt_cmp: %s->cat=%s != %s->cat=%s", + d1->name, gras_datadesc_cat_names[d1->category_code], + d2->name, gras_datadesc_cat_names[d2->category_code]); + return d1->category_code > d2->category_code ? 1 : -1; + } + + if (d1->send != d2->send) { + DEBUG4("ddt_cmp: %s->send=%p != %s->send=%p", + d1->name, (void *) d1->send, d2->name, (void *) d2->send); + return 1; /* ISO C forbids ordered comparisons of pointers to functions */ + } + + if (d1->recv != d2->recv) { + DEBUG4("ddt_cmp: %s->recv=%p != %s->recv=%p", + d1->name, (void *) d1->recv, d2->name, (void *) d2->recv); + return 1; /* ISO C forbids ordered comparisons of pointers to functions */ + } + + switch (d1->category_code) { + case e_gras_datadesc_type_cat_scalar: + if (d1->category.scalar_data.encoding != + d2->category.scalar_data.encoding) + return d1->category.scalar_data.encoding > + d2->category.scalar_data.encoding ? 1 : -1; + break; + + case e_gras_datadesc_type_cat_struct: + if (xbt_dynar_length(d1->category.struct_data.fields) != + xbt_dynar_length(d2->category.struct_data.fields)) { + DEBUG4("ddt_cmp: %s (having %lu fields) != %s (having %lu fields)", + d1->name, xbt_dynar_length(d1->category.struct_data.fields), + d2->name, xbt_dynar_length(d2->category.struct_data.fields)); + + return xbt_dynar_length(d1->category.struct_data.fields) > + xbt_dynar_length(d2->category.struct_data.fields) ? 1 : -1; + } + xbt_dynar_foreach(d1->category.struct_data.fields, cpt, field1) { + + field2 = + xbt_dynar_get_as(d2->category.struct_data.fields, cpt, + gras_dd_cat_field_t); + field_desc_1 = field1->type; + field_desc_2 = field2->type; + ret = gras_datadesc_type_cmp(field_desc_1, field_desc_2); + if (ret) { + DEBUG6("%s->field[%d]=%s != %s->field[%d]=%s", + d1->name, cpt, field1->name, d2->name, cpt, field2->name); + return ret; + } + + } + break; + + case e_gras_datadesc_type_cat_union: + if (d1->category.union_data.selector != d2->category.union_data.selector) + return 1; /* ISO C forbids ordered comparisons of pointers to functions */ + + if (xbt_dynar_length(d1->category.union_data.fields) != + xbt_dynar_length(d2->category.union_data.fields)) + return xbt_dynar_length(d1->category.union_data.fields) > + xbt_dynar_length(d2->category.union_data.fields) ? 1 : -1; + + xbt_dynar_foreach(d1->category.union_data.fields, cpt, field1) { + + field2 = + xbt_dynar_get_as(d2->category.union_data.fields, cpt, + gras_dd_cat_field_t); + field_desc_1 = field1->type; + field_desc_2 = field2->type; + ret = gras_datadesc_type_cmp(field_desc_1, field_desc_2); + if (ret) + return ret; + + } + break; + + + case e_gras_datadesc_type_cat_ref: + if (d1->category.ref_data.selector != d2->category.ref_data.selector) + return 1; /* ISO C forbids ordered comparisons of pointers to functions */ + + if (d1->category.ref_data.type != d2->category.ref_data.type) + return d1->category.ref_data.type > d2->category.ref_data.type ? 1 : -1; + break; + + case e_gras_datadesc_type_cat_array: + if (d1->category.array_data.type != d2->category.array_data.type) + return d1->category.array_data.type > + d2->category.array_data.type ? 1 : -1; + + if (d1->category.array_data.fixed_size != + d2->category.array_data.fixed_size) + return d1->category.array_data.fixed_size > + d2->category.array_data.fixed_size ? 1 : -1; + + if (d1->category.array_data.dynamic_size != + d2->category.array_data.dynamic_size) + return 1; /* ISO C forbids ordered comparisons of pointers to functions */ + + break; + + default: + /* two stupidly created ddt are equally stupid ;) */ + break; + } + return 0; + +}