X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b1acf7fe2f1886e9adcb4313f53548c9995a906c..155479dd57524928e1cc8440b70daf44ec143f1c:/src/gras/DataDesc/ddt_create.c diff --git a/src/gras/DataDesc/ddt_create.c b/src/gras/DataDesc/ddt_create.c index 61b371b40c..ee432e195b 100644 --- a/src/gras/DataDesc/ddt_create.c +++ b/src/gras/DataDesc/ddt_create.c @@ -2,524 +2,1061 @@ /* ddt_new - creation/deletion of datatypes structs (private to this module)*/ -/* Authors: Olivier Aumage, Martin Quinson */ -/* Copyright (C) 2003, 2004 the GRAS posse. */ +/* Copyright (c) 2003 Olivier Aumage. */ +/* Copyright (c) 2003, 2004 Martin Quinson. */ +/* 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. */ + * under the terms of the license (GNU LGPL) which comes with this package. */ -#include "DataDesc/datadesc_private.h" +#include "xbt/misc.h" /* min()/max() */ +#include "xbt/ex.h" +#include "gras/DataDesc/datadesc_private.h" -GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(new,DataDesc); +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. */ -static void gras_ddt_freev(void *ddt) { - gras_datadesc_type_t *type= (gras_datadesc_type_t *)ddt; +void gras_ddt_freev(void *ddt) { + gras_datadesc_type_t type= (gras_datadesc_type_t)ddt; if (type) { - gras_ddt_free(&type); + gras_datadesc_free(&type); } } -static gras_error_t -gras_ddt_new(const char *name, - gras_datadesc_type_t **dst) { +static gras_datadesc_type_t gras_ddt_new(const char *name) { + gras_datadesc_type_t res; - gras_error_t errcode; - gras_datadesc_type_t *res=malloc(sizeof(gras_datadesc_type_t)); - if (!res) - RAISE_MALLOC; + XBT_IN1("(%s)",name); + res=xbt_new0(s_gras_datadesc_type_t,1); - memset(res, 0, sizeof(gras_datadesc_type_t)); - res->name = strdup(name); + res->name = (char*)strdup(name); res->name_len = strlen(name); - - TRY(gras_set_add(gras_datadesc_set_local, - (gras_set_elm_t*)res,&gras_ddt_freev)); - - *dst=res; - return no_error; + 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; +} /** - * gras_datadesc_by_name: - * - * Retrieve a type from its name + * Search the given datadesc (or raises an exception if it can't be found) */ -gras_error_t gras_datadesc_by_name(const char *name, - gras_datadesc_type_t **type) { - return gras_set_get_by_name(gras_datadesc_set_local, - name,(gras_set_elm_t**)type); +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; } /** - * gras_datadesc_by_id: - * - * Retrieve a type from its code + * Retrieve a type from its code (or NULL if not found) */ -gras_error_t gras_datadesc_by_id(long int code, - gras_datadesc_type_t **type) { - return gras_set_get_by_id(gras_datadesc_set_local, - code,(gras_set_elm_t**)type); +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; } /** - * gras_datadesc_declare_scalar: - * * Create a new scalar and give a pointer to it */ -gras_error_t -gras_datadesc_declare_scalar(const char *name, - gras_ddt_scalar_type_t type, - enum e_gras_dd_scalar_encoding encoding, - gras_datadesc_type_cb_void_t cb, - gras_datadesc_type_t **dst) { - - gras_error_t errcode; - gras_datadesc_type_t *res; +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; - TRY(gras_ddt_new(name,dst)); - res=*dst; + 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 ++) { - long int sz; - long int mask; - - res->size[arch] = gras_arch_sizes[arch].sizeof_scalars[type]; - - sz = res->size[arch]; - mask = sz; - - /* just in case you wonder, x>>1 == x/2 on all architectures when x>=0 and a size is always>=0 */ - - /* make sure mask have all the bits under the biggest one of size set to 1 - Example: size=000100101 => mask=0000111111 */ - while ((sz >>= 1)) { - mask |= sz; - } - - if (res->size[arch] & (mask >> 1)) { /* if size have bits to one beside its biggest */ - /* size is not a power of 2 */ - /* alignment= next power of 2 after size */ - res->alignment[arch] = (res->size[arch] & ~(mask >> 1)) << 1; - gras_assert0(res->alignment[arch] != 0, - "scalar type too large"); - - res->aligned_size[arch] = aligned(res->size[arch], res->alignment[arch]); - gras_assert0 (res->aligned_size[arch] >= 0, - "scalar type too large"); - - } else { - /* size is a power of 2, life is great */ - res->alignment[arch] = res->size[arch]; - res->aligned_size[arch] = res->size[arch]; - } - - /* FIXME size < 0 sometimes? - } else { - res->alignment = 0; - res->aligned_size = 0; - } - */ + 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->pre = cb; - return no_error; + res->category.scalar_data.type = type; + XBT_OUT; + + return res; } -/** - * gras_dd_cat_field_free: - * - * Frees one struct or union field - */ +/** 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; + 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; } -/** - * gras_datadesc_declare_struct: - * - * Create a new struct and give a pointer to it - */ -gras_error_t -gras_datadesc_declare_struct(const char *name, - gras_datadesc_type_t **dst) { +/** \brief Declare a new structure description */ +gras_datadesc_type_t + gras_datadesc_struct(const char *name) { - gras_error_t errcode; - gras_datadesc_type_t *res; + gras_datadesc_type_t res; long int arch; - - TRY(gras_ddt_new(name,dst)); - res=*dst; + + 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; archsize[arch] = 0; - res->alignment[arch] = 0; - res->aligned_size[arch] = 0; - } - res->category_code = e_gras_datadesc_type_cat_struct; - TRY(gras_dynar_new(&(res->category.struct_data.fields), - sizeof(gras_dd_cat_field_t*), - &gras_dd_cat_field_free)); - - return no_error; -} - -gras_error_t -gras_datadesc_declare_struct_append_name(gras_datadesc_type_t *struct_type, - const char *name, - const char *field_type_name){ - gras_error_t errcode; - gras_datadesc_type_t *field_type; - - errcode = gras_datadesc_by_name(field_type_name, &field_type); - if (errcode != no_error) { - WARN2("Got error '%s' while looking for '%s'", - gras_error_name(errcode), field_type_name); - return errcode; + res->size[arch] = 0; + res->alignment[arch] = 0; + res->aligned_size[arch] = 0; } - return gras_datadesc_declare_struct_append(struct_type,name,field_type); + 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; } -/** - * gras_datadesc_declare_struct_append: - * - * Append a field to the struct - */ -gras_error_t -gras_datadesc_declare_struct_append(gras_datadesc_type_t *struct_type, - const char *name, - gras_datadesc_type_t *field_type) { - gras_error_t errcode; - gras_dd_cat_field_t *field; - int arch; +/** \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_assert0(field_type->size >= 0, - "Cannot add a dynamically sized field in a structure"); - - field=malloc(sizeof(gras_dd_cat_field_t)); - if (!field) - RAISE_MALLOC; - - field->name = strdup(name); + gras_dd_cat_field_t field; + int arch; - for (arch=0; archoffset[arch] = aligned(struct_type->size[arch], field_type->alignment[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; } - field->code = field_type->code; - field->pre = NULL; - field->post = NULL; - - TRY(gras_dynar_push(struct_type->category.struct_data.fields, &field)); + xbt_assert1(field_type->size != 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; archsize[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] = aligned(struct_type->size[arch], struct_type->alignment[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; +} - return no_error; +/** \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) { + XBT_IN; + struct_type->category.struct_data.closed = 1; + 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_declare_union: + * 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. * - * Create a new union and give a pointer to it + * Note that setting this option when not needed have a rather bad effect + * on the performance (several times slower on big data). */ -gras_error_t -gras_datadesc_declare_union(const char *name, - gras_datadesc_type_cb_int_t selector, - gras_datadesc_type_t **dst) { +void +gras_datadesc_cycle_set(gras_datadesc_type_t ddt) { + ddt->cycle = 1; +} - gras_error_t errcode; - gras_datadesc_type_t *res; +/** + * 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; - gras_assert0(selector, + XBT_IN1("(%s)",name); + xbt_assert0(selector, "Attempt to creat an union without field_count function"); - TRY(gras_ddt_new(name,dst)); - res=*dst; + 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; archsize[arch] = 0; - res->alignment[arch] = 0; - res->aligned_size[arch] = 0; + res->size[arch] = 0; + res->alignment[arch] = 0; + res->aligned_size[arch] = 0; } + res->category_code = e_gras_datadesc_type_cat_union; - TRY(gras_dynar_new(&(res->category.union_data.fields), - sizeof(gras_dd_cat_field_t*), - &gras_dd_cat_field_free)); + 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 no_error; + return res; } -/** - * gras_datadesc_declare_union_append: - * - * Append a field to the union - */ -gras_error_t -gras_datadesc_declare_union_append(gras_datadesc_type_t *union_type, - const char *name, - gras_datadesc_type_t *field_type) { +/** \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_error_t errcode; - gras_dd_cat_field_t *field; + gras_dd_cat_field_t field; int arch; - gras_assert0(field_type->size >= 0, - "Cannot add a dynamically sized field in an union"); - - field=malloc(sizeof(gras_dd_cat_field_t)); - if (!field) - RAISE_MALLOC; + XBT_IN3("(%s %s.%s;)",field_type->name,union_type->name,name); + xbt_assert1(field_type->size != 0, + "Cannot add a dynamically sized field in union %s", + union_type->name); - field->name = strdup(name); - for (arch=0; archoffset[arch] = 0; /* that's the purpose of union ;) */ + if (union_type->category.union_data.closed) { + VERB1("Ignoring request to add field to union %s (closed)", + union_type->name); + return; } - field->code = field_type->code; - field->pre = NULL; - field->post = NULL; + + 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 */ - TRY(gras_dynar_push(union_type->category.union_data.fields, &field)); + xbt_dynar_push(union_type->category.union_data.fields, &field); for (arch=0; archsize[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] = aligned(union_type->size[arch], union_type->alignment[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]); } - - return no_error; } -/** - * gras_datadesc_declare_ref: + +/** \brief Close an union description * - * Create a new ref to a fixed type and give a pointer to it + * No new field can be added afterward, and it is mandatory to close the union before using it. */ -gras_error_t -gras_datadesc_declare_ref(const char *name, - gras_datadesc_type_t *referenced_type, - gras_datadesc_type_t **dst) { - - gras_error_t errcode; - gras_datadesc_type_t *res; - gras_datadesc_type_t *pointer_type; - int arch; +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; + } - TRY(gras_ddt_new(name,dst)); - res=*dst; +/** \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) { - TRY(gras_datadesc_by_name("data pointer", &pointer_type)); - - for (arch=0; archsize[arch] = pointer_type->size[arch]; - res->alignment[arch] = pointer_type->alignment[arch]; - res->aligned_size[arch] = pointer_type->aligned_size[arch]; + 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->category_code = e_gras_datadesc_type_cat_ref; + res = gras_ddt_new(name); - res->category.ref_data.code = referenced_type->code; + xbt_assert0(pointer_type, "Cannot get the description of data pointer"); + + for (arch=0; archsize[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 no_error; + return res; } -/** - * gras_datadesc_declare_ref_generic: - * - * Create a new ref to a type given at use time, and give a pointer to it +/** \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_error_t -gras_datadesc_declare_ref_generic(const char *name, - gras_datadesc_type_cb_int_t selector, - gras_datadesc_type_t **dst) { - - gras_error_t errcode; - gras_datadesc_type_t *res; - gras_datadesc_type_t *pointer_type; +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; - TRY(gras_ddt_new(name,dst)); - res=*dst; + 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); - TRY(gras_datadesc_by_name("data pointer", &pointer_type)); + xbt_assert0(pointer_type, "Cannot get the description of data pointer"); for (arch=0; archsize[arch] = pointer_type->size[arch]; - res->alignment[arch] = pointer_type->alignment[arch]; - res->aligned_size[arch] = pointer_type->aligned_size[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.code = -1; + res->category.ref_data.type = NULL; res->category.ref_data.selector = selector; - return no_error; + return res; } -/** - * gras_datadesc_declare_array_fixed: - * - * Create a new array and give a pointer to it - */ -gras_error_t -gras_datadesc_declare_array_fixed(const char *name, - gras_datadesc_type_t *element_type, - long int fixed_size, - gras_datadesc_type_t **dst) { - - gras_error_t errcode; - gras_datadesc_type_t *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; - TRY(gras_ddt_new(name,dst)); - res=*dst; + 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); - gras_assert1(fixed_size > 0, "'%s' is a array of negative fixed size",name); + xbt_assert1(fixed_size > 0, "'%s' is a array of null fixed size",name); for (arch=0; archsize[arch] = fixed_size * element_type->aligned_size[arch]; - res->alignment[arch] = element_type->alignment[arch]; - res->aligned_size[arch] = fixed_size; /*FIXME: That was so in GS, but looks stupid*/ - } + 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.code = element_type->code; + res->category.array_data.type = element_type; res->category.array_data.fixed_size = fixed_size; res->category.array_data.dynamic_size = NULL; - return no_error; + return res; } -/** - * gras_datadesc_declare_array_dyn: - * - * Create a new array and give a pointer to it - */ -gras_error_t -gras_datadesc_declare_array_dyn(const char *name, - gras_datadesc_type_t *element_type, - gras_datadesc_type_cb_int_t dynamic_size, - gras_datadesc_type_t **dst) { - - gras_error_t errcode; - gras_datadesc_type_t *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; - gras_assert1(dynamic_size, + XBT_IN1("(%s)",name); + xbt_assert1(dynamic_size, "'%s' is a dynamic array without size discriminant", name); - TRY(gras_ddt_new(name,dst)); - res=*dst; + 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 == 0, + "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; archsize[arch] = -1; /* make sure it indicates "dynamic" */ - res->alignment[arch] = element_type->alignment[arch]; - res->aligned_size[arch] = -1; /*FIXME: That was so in GS, but looks stupid*/ + 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.code = element_type->code; - res->category.array_data.fixed_size = -1; + res->category.array_data.type = element_type; + res->category.array_data.fixed_size = 0; res->category.array_data.dynamic_size = dynamic_size; - return no_error; + return res; } -/** - * gras_datadesc_declare_parse: +/** \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. * - * Create a datadescription from the result of parsing the C type description + * 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; + char *name=(char*)xbt_malloc(strlen(element_type->name) + 4); + + sprintf(name,"%s[]",element_type->name); + + res = gras_datadesc_array_dyn(name,element_type, + gras_datadesc_cb_pop); + + sprintf(name,"%s[]*",element_type->name); + res = gras_datadesc_ref(name,res); + + free(name); + + return res; +} + +/* + *## + *## Constructor of container datatypes + *## + */ + +#include "xbt/dynar_private.h" +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_error_t -gras_datadesc_parse(const char *name, - const char *C_statement, - gras_datadesc_type_t **dst) { - RAISE_UNIMPLEMENTED; +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); -gras_error_t + 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, - size_t howmany, - gras_datadesc_type_t **dst) { - RAISE_UNIMPLEMENTED; + unsigned long howmany) { + THROW_UNIMPLEMENTED; } /** - * gras_ddt_free: - * - * Frees a datadescription. + * (useful to push the sizes of the upcoming arrays, for example) */ -void gras_ddt_free(gras_datadesc_type_t **type) { - gras_datadesc_type_t *t; - - if (type && *type) { - t=*type; - - free(t->name); - switch (t->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_ignored: - if (t->category.ignored_data.free_func) { - t->category.ignored_data.free_func(t->category.ignored_data.default_value); +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; + 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; } - break; + } + ERROR2("No field named '%s' in '%s'",field_name,type->name); + xbt_abort(); - case e_gras_datadesc_type_cat_struct: - gras_dynar_free(t->category.struct_data.fields); - break; +} + +/** + * 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; +} - case e_gras_datadesc_type_cat_union: - gras_dynar_free(t->category.union_data.fields); - break; - - default: - /* datadesc was invalid. Killing it is like euthanasy, I guess */ - break; - } - } + +/** + * 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(); + } } /** - * gras_datadesc_cb_set_pre: + * 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. * - * Add a pre-send callback to this datadexc + * The field must be an int, unsigned int, long int or unsigned long int. */ -void gras_datadesc_cb_set_pre (gras_datadesc_type_t *type, - gras_datadesc_type_cb_void_t pre) { - type->pre = pre; +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(); + } } + /** - * gras_datadesc_cb_set_post: + * 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: * - * Add a post-send callback to this datadexc + * 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). */ -void gras_datadesc_cb_set_post(gras_datadesc_type_t *type, - gras_datadesc_type_cb_void_t post) { - type->post = post; +int gras_datadesc_type_cmp(const gras_datadesc_type_t d1, + const gras_datadesc_type_t d2) { + int ret,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; cptsize[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; + }