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