X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/73d53de1c9a9a2b536522d0d2e04031276941caf..e62bba7ea511413feb10d9de5c306061a8560c54:/src/gras/DataDesc/ddt_exchange.c diff --git a/src/gras/DataDesc/ddt_exchange.c b/src/gras/DataDesc/ddt_exchange.c index 579f2ea738..a35b2de110 100644 --- a/src/gras/DataDesc/ddt_exchange.c +++ b/src/gras/DataDesc/ddt_exchange.c @@ -2,422 +2,600 @@ /* ddt_exchange - send/recv data described */ -/* Authors: Olivier Aumage, Martin Quinson */ -/* Copyright (C) 2003, 2004 the GRAS posse. */ +/* Copyright (c) 2003-2009 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 "DataDesc/datadesc_private.h" - -GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(exchange,DataDesc); - -static const char *gras_datadesc_cat_names[9] = { - "undefined", - "scalar", "struct", "union", "ref", "array", "ignored", - "invalid"}; - -static gras_datadesc_type_t *int_type = NULL; -static gras_datadesc_type_t *pointer_type = NULL; -static gras_error_t gras_dd_send_int(gras_socket_t *sock, int i); -static gras_error_t gras_dd_recv_int(gras_socket_t *sock, int r_arch, int *i); - -static gras_error_t -gras_dd_alloc_ref(gras_dict_t *refs, long int size, - char **r_ref, long int r_len, - char **l_ref); -static int -gras_dd_is_r_null(char **r_ptr, long int length); - -static gras_error_t -gras_datadesc_send_rec(gras_socket_t *sock, - gras_dd_cbps_t *state, - gras_dict_t *refs, - gras_datadesc_type_t *type, - char *data); -static gras_error_t -gras_datadesc_recv_rec(gras_socket_t *sock, - gras_dd_cbps_t *state, - gras_dict_t *refs, - gras_datadesc_type_t *type, - int r_arch, - char **r_data, - long int r_lgr, - char **dst); - - -static gras_error_t -gras_dd_send_int(gras_socket_t *sock,int i) { - gras_error_t errcode; - - if (!int_type) - TRY(gras_datadesc_by_name("int", &int_type)); - - DEBUG1("send_int(%d)",i); - return gras_trp_chunk_send(sock, (char*)&i, int_type->size[GRAS_THISARCH]); + * under the terms of the license (GNU LGPL) which comes with this package. */ + +#include "xbt/ex.h" +#include "gras/DataDesc/datadesc_private.h" +#include "gras/Transport/transport_interface.h" /* gras_trp_send/recv */ + +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_ddt_exchange,gras_ddt, + "Sending data over the network"); +const char *gras_datadesc_cat_names[9] = { + "undefined", + "scalar", "struct", "union", "ref", "array", "ignored", + "invalid"}; + +static gras_datadesc_type_t int_type = NULL; +static gras_datadesc_type_t pointer_type = NULL; + +static XBT_INLINE void +gras_dd_send_int(gras_socket_t sock, int *i, int stable) { + + if (!int_type) { + int_type = gras_datadesc_by_name("int"); + xbt_assert(int_type); + } + + DEBUG1("send_int(%u)",*i); + gras_trp_send(sock, (char*)i, int_type->size[GRAS_THISARCH], stable); } -static gras_error_t -gras_dd_recv_int(gras_socket_t *sock, int r_arch, int *i) { - gras_error_t errcode; - - if (!int_type) - TRY(gras_datadesc_by_name("int", &int_type)); - - if (int_type->size[GRAS_THISARCH] >= int_type->size[r_arch]) { - TRY(gras_trp_chunk_recv(sock, (char*)i, int_type->size[r_arch])); - TRY(gras_dd_convert_elm(int_type,r_arch, i,i)); - } else { - void *ptr = NULL; - ptr = malloc((size_t)int_type->size[r_arch]); - TRY(gras_trp_chunk_recv(sock, (char*)ptr, int_type->size[r_arch])); - TRY(gras_dd_convert_elm(int_type,r_arch, ptr,i)); - free(ptr); - } - DEBUG1("recv_int(%d)",*i); - - return no_error; +static XBT_INLINE void +gras_dd_recv_int(gras_socket_t sock, int r_arch, int *i) { + + if (!int_type) { + int_type = gras_datadesc_by_name("int"); + xbt_assert(int_type); + } + + if (int_type->size[GRAS_THISARCH] >= int_type->size[r_arch]) { + gras_trp_recv(sock, (char*)i, int_type->size[r_arch]); + if (r_arch != GRAS_THISARCH) + gras_dd_convert_elm(int_type,1,r_arch, i,i); + } else { + void *ptr = xbt_malloc(int_type->size[r_arch]); + + gras_trp_recv(sock, (char*)ptr, int_type->size[r_arch]); + if (r_arch != GRAS_THISARCH) + gras_dd_convert_elm(int_type,1,r_arch, ptr,i); + free(ptr); + } + DEBUG1("recv_int(%u)",*i); } /* - * Note: here we suppose that the remote NULL is a sequence + * Note: here we suppose that the remote NULL is a sequence * of 'length' bytes set to 0. * FIXME: Check in configure? */ -static int +static XBT_INLINE int gras_dd_is_r_null(char **r_ptr, long int length) { - int i; + int i; - for (i=0; isize[r_arch] */ - char **l_ref) { - char *l_data = NULL; - gras_error_t errcode; - - gras_assert1(size>0,"Cannot allocate %d bytes!", size); - if (! (l_data = malloc((size_t)size)) ) - RAISE_MALLOC; - - *l_ref = l_data; - DEBUG2("l_data=%p, &l_data=%p",l_data,&l_data); - - DEBUG3("alloc_ref: r_ref=%p; *r_ref=%p, r_len=%d", - r_ref, r_ref?*r_ref:NULL, r_len); - if (r_ref && !gras_dd_is_r_null( r_ref, r_len)) { - void *ptr = malloc(sizeof(void *)); - if (!ptr) - RAISE_MALLOC; - // memcpy(ptr,&l_data, sizeof(void *)); - memcpy(ptr,l_ref, sizeof(void *)); - - DEBUG2("Insert %p under %p",*(void**)ptr, *(void**)r_ref); - /* FIXME: Leaking on the ptr. Do I really need to copy it? */ - TRY(gras_dict_set_ext(refs,(const char *) r_ref, r_len, ptr, NULL)); - } - return no_error; -} +static XBT_INLINE void +gras_dd_alloc_ref(xbt_dict_t refs, + long int size, + char **r_ref, + long int r_len, /* pointer_type->size[r_arch] */ + char **l_ref, + int detect_cycle) { + char *l_data = 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,cpt; - gras_dd_cat_field_t *field1,*field2; - gras_datadesc_type_t *field_desc_1,*field_desc_2; - - - if (!d1 && d2) return 1; - if (!d1 && !d2) return 0; - if ( d1 && !d2) return -1; - - if (d1->size != d2->size ) - return d1->size > d2->size ? 1 : -1; - if (d1->alignment != d2->alignment) - return d1->alignment > d2->alignment ? 1 : -1; - if (d1->aligned_size != d2->aligned_size) - return d1->aligned_size > d2->aligned_size ? 1 : -1; - - if (d1->category_code != d2->category_code) - return d1->category_code > d2->category_code ? 1 : -1; - - if (d1->pre != d2->pre) - return d1->pre > d2->pre ? 1 : -1; - if (d1->post != d2->post) - return d1->post > d2->post ? 1 : -1; - - 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 (gras_dynar_length(d1->category.struct_data.fields) != - gras_dynar_length(d2->category.struct_data.fields)) - return gras_dynar_length(d1->category.struct_data.fields) > - gras_dynar_length(d2->category.struct_data.fields) ? - 1 : -1; - - gras_dynar_foreach(d1->category.struct_data.fields, cpt, field1) { - - gras_dynar_get(d2->category.struct_data.fields, cpt, field2); - gras_datadesc_by_id(field1->code,&field_desc_1); /* FIXME: errcode ignored */ - gras_datadesc_by_id(field2->code,&field_desc_2); - ret = gras_datadesc_type_cmp(field_desc_1,field_desc_2); - if (ret) - return ret; - - } - break; - - case e_gras_datadesc_type_cat_union: - if (d1->category.union_data.selector != d2->category.union_data.selector) - return d1->category.union_data.selector > d2->category.union_data.selector ? 1 : -1; - - if (gras_dynar_length(d1->category.union_data.fields) != - gras_dynar_length(d2->category.union_data.fields)) - return gras_dynar_length(d1->category.union_data.fields) > - gras_dynar_length(d2->category.union_data.fields) ? - 1 : -1; - - gras_dynar_foreach(d1->category.union_data.fields, cpt, field1) { - - gras_dynar_get(d2->category.union_data.fields, cpt, field2); - gras_datadesc_by_id(field1->code,&field_desc_1); /* FIXME: errcode ignored */ - gras_datadesc_by_id(field2->code,&field_desc_2); - 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 d1->category.ref_data.selector > d2->category.ref_data.selector ? 1 : -1; - - if (d1->category.ref_data.code != d2->category.ref_data.code) - return d1->category.ref_data.code > d2->category.ref_data.code ? 1 : -1; - break; - - case e_gras_datadesc_type_cat_array: - if (d1->category.array_data.code != d2->category.array_data.code) - return d1->category.array_data.code > d2->category.array_data.code ? 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 d1->category.array_data.dynamic_size > d2->category.array_data.dynamic_size ? 1 : -1; - - break; - - case e_gras_datadesc_type_cat_ignored: - /* That's ignored... */ - default: - /* two stupidly created ddt are equally stupid ;) */ - break; - } - return 0; - + xbt_assert1(size>0,"Cannot allocate %ld bytes!", size); + l_data = xbt_malloc((size_t)size); + + *l_ref = l_data; + DEBUG5("alloc_ref: l_data=%p, &l_data=%p; r_ref=%p; *r_ref=%p, r_len=%ld", + (void*)l_data,(void*)&l_data, + (void*)r_ref, (void*)(r_ref?*r_ref:NULL), r_len); + if (detect_cycle && r_ref && !gras_dd_is_r_null( r_ref, r_len)) { + void *ptr = xbt_malloc(sizeof(void *)); + + memcpy(ptr,l_ref, sizeof(void *)); + + DEBUG2("Insert l_ref=%p under r_ref=%p",*(void**)ptr, *(void**)r_ref); + + if (detect_cycle) + xbt_dict_set_ext(refs,(const char *) r_ref, r_len, ptr, xbt_free_f); + } } +static int +gras_datadesc_memcpy_rec(gras_cbps_t state, + xbt_dict_t refs, + gras_datadesc_type_t type, + char *src, + char *dst, + int subsize, + int detect_cycle) { + + + xbt_ex_t e; + unsigned int cpt; + gras_datadesc_type_t sub_type; /* type on which we recurse */ + int count = 0; + + VERB5("Copy a %s (%s) from %p to %p (local sizeof=%ld)", + type->name, gras_datadesc_cat_names[type->category_code], + src,dst,type->size[GRAS_THISARCH]); + + if (type->send) { + type->send(type,state,src); + } + + switch (type->category_code) { + case e_gras_datadesc_type_cat_scalar: + memcpy(dst,src,type->size[GRAS_THISARCH]); + count += type->size[GRAS_THISARCH]; + break; + + case e_gras_datadesc_type_cat_struct: { + gras_dd_cat_struct_t struct_data; + gras_dd_cat_field_t field; + char *field_src; + char *field_dst; + + struct_data = type->category.struct_data; + xbt_assert1(struct_data.closed, + "Please call gras_datadesc_declare_struct_close on %s before copying it", + type->name); + VERB1(">> Copy all fields of the structure %s",type->name); + xbt_dynar_foreach(struct_data.fields, cpt, field) { + field_src = src + field->offset[GRAS_THISARCH]; + field_dst = dst + field->offset[GRAS_THISARCH]; + + sub_type = field->type; + + if (field->send) + field->send(type,state,field_src); + + DEBUG1("Copy field %s",field->name); + count += gras_datadesc_memcpy_rec(state,refs,sub_type, field_src, field_dst, 0, + detect_cycle || sub_type->cycle); + + if (XBT_LOG_ISENABLED(gras_ddt_exchange,xbt_log_priority_verbose)) { + if (sub_type == gras_datadesc_by_name("unsigned int")) { + VERB2("Copied value for field '%s': %d (type: unsigned int)",field->name, *(unsigned int*)field_dst); + } else if (sub_type == gras_datadesc_by_name("int")) { + VERB2("Copied value for field '%s': %d (type: int)",field->name, *(int*)field_dst); + + } else if (sub_type == gras_datadesc_by_name("unsigned long int")) { + VERB2("Copied value for field '%s': %ld (type: unsigned long int)",field->name, *(unsigned long int*)field_dst); + } else if (sub_type == gras_datadesc_by_name("long int")) { + VERB2("Copied value for field '%s': %ld (type: long int)",field->name, *(long int*)field_dst); + + } else if (sub_type == gras_datadesc_by_name("string")) { + VERB2("Copied value for field '%s': '%s' (type: string)", field->name, *(char**)field_dst); + } else { + VERB1("Copied a value for field '%s' (type not scalar?)", field->name); + } + } + + } + VERB1("<< Copied all fields of the structure %s", type->name); + + break; + } + + case e_gras_datadesc_type_cat_union: { + gras_dd_cat_union_t union_data; + gras_dd_cat_field_t field=NULL; + unsigned int field_num; + + union_data = type->category.union_data; + + xbt_assert1(union_data.closed, + "Please call gras_datadesc_declare_union_close on %s before copying it", + type->name); + /* retrieve the field number */ + field_num = union_data.selector(type, state, src); + + xbt_assert1(field_num > 0, + "union field selector of %s gave a negative value", + type->name); + + xbt_assert3(field_num < xbt_dynar_length(union_data.fields), + "union field selector of %s returned %d but there is only %lu fields", + type->name, field_num, xbt_dynar_length(union_data.fields)); + + /* Copy the content */ + field = xbt_dynar_get_as(union_data.fields, field_num, gras_dd_cat_field_t); + sub_type = field->type; + + if (field->send) + field->send(type,state,src); + + count += gras_datadesc_memcpy_rec(state,refs, sub_type, src, dst,0, + detect_cycle || sub_type->cycle); + + break; + } + + case e_gras_datadesc_type_cat_ref: { + gras_dd_cat_ref_t ref_data; + char **o_ref=NULL; + char **n_ref=NULL; + int reference_is_to_cpy; + + ref_data = type->category.ref_data; + + /* Detect the referenced type */ + sub_type = ref_data.type; + if (sub_type == NULL) { + sub_type = (*ref_data.selector)(type,state,src); + } + + /* Send the pointed data only if not already sent */ + if (*(void**)src == NULL) { + VERB0("Not copying NULL referenced data"); + *(void**)dst = NULL; + break; + } + o_ref=(char**)src; + + reference_is_to_cpy = 0; + TRY { + if (detect_cycle) { + /* return ignored. Just checking whether it's known or not */ + n_ref=xbt_dict_get_ext(refs,(char*)o_ref, sizeof(char*)); + } else { + reference_is_to_cpy = 1; + } + } CATCH(e) { + if (e.category != not_found_error) + RETHROW; + reference_is_to_cpy = 1; + xbt_ex_free(e); + } + + if (reference_is_to_cpy) { + int subsubcount = -1; + void *l_referenced=NULL; + VERB2("Copy a ref to '%s' referenced at %p",sub_type->name, (void*)*o_ref); + + if (!pointer_type) { + pointer_type = gras_datadesc_by_name("data pointer"); + xbt_assert(pointer_type); + } + + if (sub_type->category_code == e_gras_datadesc_type_cat_array) { + /* Damn. Reference to a dynamic array. Allocating the space for it is more complicated */ + gras_dd_cat_array_t array_data = sub_type->category.array_data; + gras_datadesc_type_t subsub_type; + + subsub_type = array_data.type; + subsubcount = array_data.fixed_size; + if (subsubcount == -1) + subsubcount = array_data.dynamic_size(subsub_type,state,*o_ref); + + if (subsubcount != 0) + gras_dd_alloc_ref(refs, + subsub_type->size[GRAS_THISARCH] * subsubcount, + o_ref,pointer_type->size[GRAS_THISARCH], + (char**)&l_referenced, + detect_cycle); + } else { + gras_dd_alloc_ref(refs,sub_type->size[GRAS_THISARCH], + o_ref,pointer_type->size[GRAS_THISARCH], + (char**)&l_referenced, + detect_cycle); + } + + count += gras_datadesc_memcpy_rec(state,refs, sub_type, + *o_ref,(char*)l_referenced, subsubcount, + detect_cycle || sub_type->cycle); + + *(void**)dst=l_referenced; + VERB3("'%s' previously referenced at %p now at %p", + sub_type->name, *(void**)o_ref, l_referenced); + + } else { + VERB2("NOT copying data previously referenced @%p (already done, @%p now)", + *(void**)o_ref, *(void**)n_ref); + + *(void**)dst=*n_ref; + + } + break; + } + + case e_gras_datadesc_type_cat_array: { + gras_dd_cat_array_t array_data; + unsigned long int array_count; + char *src_ptr=src; + char *dst_ptr=dst; + long int elm_size; + + array_data = type->category.array_data; + + /* determine and send the element count */ + array_count = array_data.fixed_size; + if (array_count == -1) + array_count = subsize; + if (array_count == -1) { + array_count = array_data.dynamic_size(type,state,src); + xbt_assert1(array_count >=0, + "Invalid (negative) array size for type %s",type->name); + } + + /* send the content */ + sub_type = array_data.type; + elm_size = sub_type->aligned_size[GRAS_THISARCH]; + if (sub_type->category_code == e_gras_datadesc_type_cat_scalar) { + VERB1("Array of %ld scalars, copy it in one shot",array_count); + memcpy(dst, src, sub_type->aligned_size[GRAS_THISARCH] * array_count); + count += sub_type->aligned_size[GRAS_THISARCH] * array_count; + } else if (sub_type->category_code == e_gras_datadesc_type_cat_array && + sub_type->category.array_data.fixed_size > 0 && + sub_type->category.array_data.type->category_code == e_gras_datadesc_type_cat_scalar) { + + VERB1("Array of %ld fixed array of scalars, copy it in one shot", + array_count); + memcpy(dst,src,sub_type->category.array_data.type->aligned_size[GRAS_THISARCH] + * array_count * sub_type->category.array_data.fixed_size); + count += sub_type->category.array_data.type->aligned_size[GRAS_THISARCH] + * array_count * sub_type->category.array_data.fixed_size; + + } else { + VERB1("Array of %ld stuff, copy it in one after the other",array_count); + for (cpt=0; cptcycle); + src_ptr += elm_size; + dst_ptr += elm_size; + } + } + break; + } + + default: + xbt_die("Invalid type"); + } + + return count; +} /** - * gras_datadesc_cpy: + * gras_datadesc_memcpy: * - * Copy the data pointed by src and described by type + * Copy the data pointed by src and described by type * to a new location, and store a pointer to it in dst. * */ -gras_error_t gras_datadesc_cpy(gras_datadesc_type_t *type, - void *src, - void **dst) { - RAISE_UNIMPLEMENTED; +int gras_datadesc_memcpy(gras_datadesc_type_t type, + void *src, void *dst) { + xbt_ex_t e; + static gras_cbps_t state=NULL; + static xbt_dict_t refs=NULL; /* all references already sent */ + int size=0; + + xbt_assert0(type,"called with NULL type descriptor"); + + DEBUG3("Memcopy a %s from %p to %p",gras_datadesc_get_name(type),src,dst); + if (!state) { + state = gras_cbps_new(); + refs = xbt_dict_new(); + } + + TRY { + size = gras_datadesc_memcpy_rec(state,refs,type,(char*)src,(char*)dst,0, + type->cycle); + } CLEANUP { + xbt_dict_reset(refs); + gras_cbps_reset(state); + } CATCH(e) { + RETHROW; + } + return size; } -static gras_error_t -gras_datadesc_send_rec(gras_socket_t *sock, - gras_dd_cbps_t *state, - gras_dict_t *refs, - gras_datadesc_type_t *type, - char *data) { - - gras_error_t errcode; - int cpt; - gras_datadesc_type_t *sub_type; /* type on which we recurse */ - - VERB2("Send a %s (%s)", - type->name, gras_datadesc_cat_names[type->category_code]); - - if (type->pre) { - type->pre(state,type,data); - } - - switch (type->category_code) { - case e_gras_datadesc_type_cat_scalar: - TRY(gras_trp_chunk_send(sock, data, type->size[GRAS_THISARCH])); - break; - - case e_gras_datadesc_type_cat_struct: { - gras_dd_cat_struct_t struct_data; - gras_dd_cat_field_t *field; - char *field_data; - - struct_data = type->category.struct_data; - VERB1(">> Send all fields of the structure %s",type->name); - gras_dynar_foreach(struct_data.fields, cpt, field) { - field_data = data; - field_data += field->offset[GRAS_THISARCH]; - - TRY(gras_datadesc_by_id(field->code, &sub_type)); - - if (field->pre) - field->pre(state,sub_type,field_data); - - TRY(gras_datadesc_send_rec(sock,state,refs,sub_type, field_data)); - - if (field->post) - field->post(state,sub_type,field_data); - } - VERB1("<< Sent all fields of the structure %s", type->name); - - break; - } - - case e_gras_datadesc_type_cat_union: { - gras_dd_cat_union_t union_data; - gras_dd_cat_field_t *field; - int field_num; - - union_data = type->category.union_data; - - /* retrieve the field number */ - field_num = union_data.selector(state, type, data); - - gras_assert1(field_num > 0, - "union field selector of %s gave a negative value", - type->name); - - gras_assert3(field_num < gras_dynar_length(union_data.fields), - "union field selector of %s returned %d but there is only %d fields", - type->name, field_num, gras_dynar_length(union_data.fields)); - - /* Send the field number */ - TRY(gras_dd_send_int(sock, field_num)); - - /* Send the content */ - gras_dynar_get(union_data.fields, field_num, field); - TRY(gras_datadesc_by_id(field->code, &sub_type)); - - if (field->pre) - field->pre(state,sub_type,data); - - TRY(gras_datadesc_send_rec(sock,state,refs, sub_type, data)); - - if (field->post) - field->post(state,sub_type,data); - - break; - } - - case e_gras_datadesc_type_cat_ref: { - gras_dd_cat_ref_t ref_data; - int ref_code; - - void **ref=(void**)data; - void *dummy; - - ref_data = type->category.ref_data; - - /* Detect the referenced type and send it to peer if needed */ - ref_code = ref_data.code; - if (ref_code < 0) { - ref_code = ref_data.selector(state,type,data); - TRY(gras_dd_send_int(sock, ref_code)); - } - - /* Send the actual value of the pointer for cycle handling */ - if (!pointer_type) - TRY(gras_datadesc_by_name("data pointer", &pointer_type)); - TRY(gras_trp_chunk_send(sock, (char*)data, - pointer_type->size[GRAS_THISARCH])); - - /* Send the pointed data only if not already sent */ - if (*(void**)data == NULL) { - VERB0("Not sending NULL referenced data"); - break; - } - errcode = gras_dict_get_ext(refs,(char*)ref, sizeof(void*), &dummy); - if (errcode == mismatch_error) { - VERB1("Sending data referenced at %p", *ref); - TRY(gras_dict_set_ext(refs, (char*)ref, sizeof(void*), ref, NULL)); - TRY(gras_datadesc_by_id(ref_code, &sub_type)); - TRY(gras_datadesc_send_rec(sock,state,refs, sub_type, *ref)); - - } else if (errcode == no_error) { - VERB1("Not sending data referenced at %p (already done)", *ref); - } else { - return errcode; - } - - break; - } - - case e_gras_datadesc_type_cat_array: { - gras_dd_cat_array_t array_data; - long int count; - char *ptr=data; - long int elm_size; - - array_data = type->category.array_data; - - /* determine and send the element count */ - count = array_data.fixed_size; - if (count <= 0) { - count = array_data.dynamic_size(state,type,data); - gras_assert1(count >=0, - "Invalid (negative) array size for type %s",type->name); - TRY(gras_dd_send_int(sock, count)); - } - - /* send the content */ - TRY(gras_datadesc_by_id(array_data.code, &sub_type)); - elm_size = sub_type->aligned_size[GRAS_THISARCH]; - for (cpt=0; cptpost) { - type->post(state,type,data); - } - - return no_error; +/*** + *** Direct use functions + ***/ + +static void +gras_datadesc_send_rec(gras_socket_t sock, + gras_cbps_t state, + xbt_dict_t refs, + gras_datadesc_type_t type, + char *data, + int detect_cycle) { + + xbt_ex_t e; + unsigned int cpt; + gras_datadesc_type_t sub_type; /* type on which we recurse */ + + VERB2("Send a %s (%s)", + type->name, gras_datadesc_cat_names[type->category_code]); + + if (!strcmp(type->name,"string")) + VERB1("value: '%s'",*(char**)data); + + if (type->send) { + type->send(type,state,data); + DEBUG0("Run the emission callback"); + } + + switch (type->category_code) { + case e_gras_datadesc_type_cat_scalar: + gras_trp_send(sock, data, type->size[GRAS_THISARCH], 1); + break; + + case e_gras_datadesc_type_cat_struct: { + gras_dd_cat_struct_t struct_data; + gras_dd_cat_field_t field; + char *field_data; + + struct_data = type->category.struct_data; + xbt_assert1(struct_data.closed, + "Please call gras_datadesc_declare_struct_close on %s before sending it", + type->name); + VERB1(">> Send all fields of the structure %s",type->name); + xbt_dynar_foreach(struct_data.fields, cpt, field) { + field_data = data; + field_data += field->offset[GRAS_THISARCH]; + + sub_type = field->type; + + if (field->send) { + DEBUG1("Run the emission callback of field %s", field->name); + field->send(type,state,field_data); + } + + VERB1("Send field %s",field->name); + gras_datadesc_send_rec(sock,state,refs,sub_type, field_data, + detect_cycle || sub_type->cycle); + + } + VERB1("<< Sent all fields of the structure %s", type->name); + + break; + } + + case e_gras_datadesc_type_cat_union: { + gras_dd_cat_union_t union_data; + gras_dd_cat_field_t field=NULL; + int field_num; + + union_data = type->category.union_data; + + xbt_assert1(union_data.closed, + "Please call gras_datadesc_declare_union_close on %s before sending it", + type->name); + /* retrieve the field number */ + field_num = union_data.selector(type, state, data); + + xbt_assert1(field_num > 0, + "union field selector of %s gave a negative value", + type->name); + + xbt_assert3(field_num < xbt_dynar_length(union_data.fields), + "union field selector of %s returned %d but there is only %lu fields", + type->name, field_num, xbt_dynar_length(union_data.fields)); + + /* Send the field number */ + gras_dd_send_int(sock, &field_num, 0 /* not stable */); + + /* Send the content */ + field = xbt_dynar_get_as(union_data.fields, field_num, gras_dd_cat_field_t); + sub_type = field->type; + + if (field->send) + field->send(type,state,data); + + gras_datadesc_send_rec(sock,state,refs, sub_type, data, + detect_cycle || sub_type->cycle); + + break; + } + + case e_gras_datadesc_type_cat_ref: { + gras_dd_cat_ref_t ref_data; + void **ref=(void**)data; + int reference_is_to_send; + + ref_data = type->category.ref_data; + + /* Detect the referenced type and send it to peer if needed */ + sub_type = ref_data.type; + if (sub_type == NULL) { + sub_type = (*ref_data.selector)(type,state,data); + gras_dd_send_int(sock, &(sub_type->code),1 /*stable*/); + } + + /* Send the actual value of the pointer for cycle handling */ + if (!pointer_type) { + pointer_type = gras_datadesc_by_name("data pointer"); + xbt_assert(pointer_type); + } + + gras_trp_send(sock, (char*)data, + pointer_type->size[GRAS_THISARCH], 1 /*stable*/); + + /* Send the pointed data only if not already sent */ + if (*(void**)data == NULL) { + VERB0("Not sending NULL referenced data"); + break; + } + + reference_is_to_send = 0; + TRY { + if (detect_cycle) + /* return ignored. Just checking whether it's known or not */ + xbt_dict_get_ext(refs,(char*)ref, sizeof(char*)); + else + reference_is_to_send = 1; + } CATCH(e) { + if (e.category != not_found_error) + RETHROW; + reference_is_to_send = 1; + xbt_ex_free(e); + } + + if (reference_is_to_send) { + VERB1("Sending data referenced at %p", (void*)*ref); + if (detect_cycle) + xbt_dict_set_ext(refs, (char*)ref, sizeof(void*), ref, NULL); + gras_datadesc_send_rec(sock,state,refs, sub_type, *ref, + detect_cycle || sub_type->cycle); + + } else { + VERB1("Not sending data referenced at %p (already done)", (void*)*ref); + } + + break; + } + + case e_gras_datadesc_type_cat_array: { + gras_dd_cat_array_t array_data; + int count; + char *ptr=data; + long int elm_size; + + array_data = type->category.array_data; + + /* determine and send the element count */ + count = array_data.fixed_size; + if (count == -1) { + count = array_data.dynamic_size(type,state,data); + xbt_assert1(count >=0, + "Invalid (negative) array size for type %s",type->name); + gras_dd_send_int(sock, &count, 0/*non-stable*/); + } + + /* send the content */ + sub_type = array_data.type; + elm_size = sub_type->aligned_size[GRAS_THISARCH]; + if (sub_type->category_code == e_gras_datadesc_type_cat_scalar) { + VERB1("Array of %d scalars, send it in one shot",count); + gras_trp_send(sock, data, + sub_type->aligned_size[GRAS_THISARCH] * count, + 0 /* not stable */); + } else if (sub_type->category_code == e_gras_datadesc_type_cat_array && + sub_type->category.array_data.fixed_size > 0 && + sub_type->category.array_data.type->category_code == e_gras_datadesc_type_cat_scalar) { + + VERB1("Array of %d fixed array of scalars, send it in one shot",count); + gras_trp_send(sock, data, + sub_type->category.array_data.type->aligned_size[GRAS_THISARCH] + * count * sub_type->category.array_data.fixed_size, + 0 /* not stable */); + + } else { + for (cpt=0; cptcycle); + ptr += elm_size; + } + } + break; + } + + default: + xbt_die("Invalid type"); + } } /** @@ -426,259 +604,370 @@ gras_datadesc_send_rec(gras_socket_t *sock, * Copy the data pointed by src and described by type to the socket * */ -gras_error_t gras_datadesc_send(gras_socket_t *sock, - gras_datadesc_type_t *type, - void *src) { - - gras_error_t errcode; - gras_dd_cbps_t *state = NULL; - gras_dict_t *refs; /* all references already sent */ - - TRY(gras_dict_new(&refs)); - TRY(gras_dd_cbps_new(&state)); - - errcode = gras_datadesc_send_rec(sock,state,refs,type,(char*)src); - - gras_dict_free(&refs); - gras_dd_cbps_free(&state); - - return errcode; +void gras_datadesc_send(gras_socket_t sock, + gras_datadesc_type_t type, + void *src) { + + xbt_ex_t e; + static gras_cbps_t state=NULL; + static xbt_dict_t refs=NULL; /* all references already sent */ + + xbt_assert0(type,"called with NULL type descriptor"); + + if (!state) { + state = gras_cbps_new(); + refs = xbt_dict_new(); + } + + TRY { + gras_datadesc_send_rec(sock,state,refs,type,(char*)src, type->cycle); + } CLEANUP { + xbt_dict_reset(refs); + gras_cbps_reset(state); + } CATCH(e) { + RETHROW; + } } /** * gras_datadesc_recv_rec: * * Do the data reception job recursively. + * + * subsize used only to deal with vicious case of reference to dynamic array. + * This size is needed at the reference reception level (to allocate enough + * space) and at the array reception level (to fill enough room). + * + * Having this size passed as an argument of the recursive function is a crude + * hack, but I was told that working code is sometimes better than neat one ;) */ -gras_error_t -gras_datadesc_recv_rec(gras_socket_t *sock, - gras_dd_cbps_t *state, - gras_dict_t *refs, - gras_datadesc_type_t *type, - int r_arch, - char **r_data, - long int r_lgr, - char **dst) { - - gras_error_t errcode; - char *l_data = *dst; /* dereference to avoid typo */ - int cpt; - gras_datadesc_type_t *sub_type; - - VERB1("Recv a %s", type->name); - - switch (type->category_code) { - case e_gras_datadesc_type_cat_scalar: - if (!l_data) { - TRY(gras_dd_alloc_ref(refs,type->size[GRAS_THISARCH],r_data,r_lgr, dst)); - l_data = *dst; - } - - if (type->size[GRAS_THISARCH] >= type->size[r_arch]) { - TRY(gras_trp_chunk_recv(sock, (char*)l_data, type->size[r_arch])); - TRY(gras_dd_convert_elm(type,r_arch, l_data,l_data)); - } else { - void *ptr = NULL; - ptr = malloc((size_t)type->size[r_arch]); - TRY(gras_trp_chunk_recv(sock, (char*)ptr, type->size[r_arch])); - TRY(gras_dd_convert_elm(type,r_arch, ptr,l_data)); - free(ptr); - } - break; - - case e_gras_datadesc_type_cat_struct: { - gras_dd_cat_struct_t struct_data; - gras_dd_cat_field_t *field; - - struct_data = type->category.struct_data; - - if (!l_data) { - TRY(gras_dd_alloc_ref(refs,type->size[GRAS_THISARCH],r_data,r_lgr, dst)); - l_data = *dst; - } - - VERB1(">> Receive all fields of the structure %s",type->name); - gras_dynar_foreach(struct_data.fields, cpt, field) { - char *field_data = l_data + field->offset[GRAS_THISARCH]; - - TRY(gras_datadesc_by_id(field->code, &sub_type)); - - TRY(gras_datadesc_recv_rec(sock,state,refs, sub_type, - r_arch,NULL,0, - &field_data)); - } - VERB1("<< Received all fields of the structure %s", type->name); - - break; - } - - case e_gras_datadesc_type_cat_union: { - gras_dd_cat_union_t union_data; - gras_dd_cat_field_t *field; - int field_num; - - union_data = type->category.union_data; - - if (!l_data) { - TRY(gras_dd_alloc_ref(refs,type->size[GRAS_THISARCH],r_data,r_lgr, dst)); - l_data = *dst; - } - - /* retrieve the field number */ - TRY(gras_dd_recv_int(sock, r_arch, &field_num)); - if (field_num < 0) - RAISE1(mismatch_error, - "Received union field for %s is negative", type->name); - if (field_num < gras_dynar_length(union_data.fields)) - RAISE3(mismatch_error, - "Received union field for %s is %d but there is only %d fields", - type->name, field_num, gras_dynar_length(union_data.fields)); - - /* Recv the content */ - gras_dynar_get(union_data.fields, field_num, field); - TRY(gras_datadesc_by_id(field->code, &sub_type)); - - TRY(gras_datadesc_recv_rec(sock,state,refs, sub_type, - r_arch,NULL,0, - dst)); - break; - } - - case e_gras_datadesc_type_cat_ref: { - char **r_ref = NULL; - char **l_ref = NULL; - gras_dd_cat_ref_t ref_data; - int ref_code; - - ref_data = type->category.ref_data; - - /* Get the referenced type locally or from peer */ - ref_code = ref_data.code; - if (ref_code < 0) - TRY(gras_dd_recv_int(sock, r_arch, &ref_code)); - - /* Get the actual value of the pointer for cycle handling */ - if (!pointer_type) - TRY(gras_datadesc_by_name("data pointer", &pointer_type)); - - if (! (r_ref = malloc((size_t)pointer_type->size[r_arch])) ) - RAISE_MALLOC; - TRY(gras_trp_chunk_recv(sock, (char*)r_ref, - pointer_type->size[r_arch])); - - if (!l_data) { - TRY(gras_dd_alloc_ref(refs,type->size[GRAS_THISARCH],r_data,r_lgr, dst)); - l_data = *dst; - } - - /* Receive the pointed data only if not already sent */ - if (gras_dd_is_r_null(r_ref, pointer_type->size[r_arch])) { - VERB1("Not receiving data remotely referenced at %p since it's NULL", - *(void **)r_ref); - *(void**)l_data = NULL; - break; - } - errcode = gras_dict_get_ext(refs, - (char*)r_ref, pointer_type->size[r_arch], - (void**)&l_ref); - - - if (errcode == mismatch_error) { - void *l_referenced=NULL; - VERB1("Receiving data remotely referenced at %p", *(void**)r_ref); - - TRY(gras_datadesc_by_id(ref_code, &sub_type)); - // DEBUG2("l_ref= %p; &l_ref=%p",l_referenced,&l_referenced); - TRY(gras_datadesc_recv_rec(sock,state,refs, sub_type, - r_arch,r_ref,pointer_type->size[r_arch], - (char**)&l_referenced)); - *(void**)l_data=l_referenced; - - } else if (errcode == no_error) { - VERB1("NOT receiving data remotely referenced at %p (already done). ", - *(void**)r_ref); - - VERB2("l_ref=%p; *l_ref=%p", l_ref,*l_ref); - - *(void**)l_data=*l_ref; - - } else { - return errcode; - } - VERB1("*l_data=%p",*(void**)l_data); - break; - } - - case e_gras_datadesc_type_cat_array: { - gras_dd_cat_array_t array_data; - int count; - char *ptr; - long int elm_size; - - array_data = type->category.array_data; - /* determine element count locally or from peer */ - count = array_data.fixed_size; - if (count <= 0) - TRY(gras_dd_recv_int(sock, r_arch, &count)); - if (count < 0) - RAISE1(mismatch_error, - "Invalid (negative) array size for type %s",type->name); - - /* receive the content */ - TRY(gras_datadesc_by_id(array_data.code, &sub_type)); - elm_size = sub_type->aligned_size[GRAS_THISARCH]; - - if (!l_data) { - TRY(gras_dd_alloc_ref(refs,elm_size*count,r_data,r_lgr, dst)); - l_data = *dst; - } - - ptr = l_data; - for (cpt=0; cptname, (void*)l_data); + xbt_assert(l_data); + + switch (type->category_code) { + case e_gras_datadesc_type_cat_scalar: + if (type->size[GRAS_THISARCH] == type->size[r_arch]) { + gras_trp_recv(sock, (char*)l_data, type->size[r_arch]); + if (r_arch != GRAS_THISARCH) + gras_dd_convert_elm(type,1,r_arch, l_data,l_data); + } else { + void *ptr = xbt_malloc(type->size[r_arch]); + + gras_trp_recv(sock, (char*)ptr, type->size[r_arch]); + if (r_arch != GRAS_THISARCH) + gras_dd_convert_elm(type,1,r_arch, ptr,l_data); + free(ptr); + } + break; + + case e_gras_datadesc_type_cat_struct: { + gras_dd_cat_struct_t struct_data; + gras_dd_cat_field_t field; + + struct_data = type->category.struct_data; + + xbt_assert1(struct_data.closed, + "Please call gras_datadesc_declare_struct_close on %s before receiving it", + type->name); + VERB1(">> Receive all fields of the structure %s",type->name); + xbt_dynar_foreach(struct_data.fields, cpt, field) { + char *field_data = l_data + field->offset[GRAS_THISARCH]; + + sub_type = field->type; + + gras_datadesc_recv_rec(sock,state,refs, sub_type, + r_arch,NULL,0, + field_data,-1, + detect_cycle || sub_type->cycle); + + if (field->recv) { + DEBUG1("Run the reception callback of field %s", field->name); + field->recv(type,state,(void*)l_data); + } + + } + VERB1("<< Received all fields of the structure %s", type->name); + + break; + } + + case e_gras_datadesc_type_cat_union: { + gras_dd_cat_union_t union_data; + gras_dd_cat_field_t field=NULL; + int field_num; + + union_data = type->category.union_data; + + xbt_assert1(union_data.closed, + "Please call gras_datadesc_declare_union_close on %s before receiving it", + type->name); + /* retrieve the field number */ + gras_dd_recv_int(sock, r_arch, &field_num); + if (field_num < 0) + THROW1(mismatch_error,0, + "Received union field for %s is negative", type->name); + if (field_num > xbt_dynar_length(union_data.fields)) + THROW3(mismatch_error,0, + "Received union field for %s is said to be #%d but there is only %lu fields", + type->name, field_num, xbt_dynar_length(union_data.fields)); + + /* Recv the content */ + field = xbt_dynar_get_as(union_data.fields, field_num, gras_dd_cat_field_t); + sub_type = field->type; + + gras_datadesc_recv_rec(sock,state,refs, sub_type, + r_arch,NULL,0, + l_data,-1, + detect_cycle || sub_type->cycle); + if (field->recv) + field->recv(type,state,l_data); + + break; + } + + case e_gras_datadesc_type_cat_ref: { + char **r_ref = NULL; + char **l_ref = NULL; + gras_dd_cat_ref_t ref_data; + int reference_is_to_recv = 0; + + ref_data = type->category.ref_data; + + /* Get the referenced type locally or from peer */ + sub_type = ref_data.type; + if (sub_type == NULL) { + int ref_code; + gras_dd_recv_int(sock, r_arch, &ref_code); + sub_type = gras_datadesc_by_id(ref_code); + } + + /* Get the actual value of the pointer for cycle handling */ + if (!pointer_type) { + pointer_type = gras_datadesc_by_name("data pointer"); + xbt_assert(pointer_type); + } + + r_ref = xbt_malloc(pointer_type->size[r_arch]); + + gras_trp_recv(sock, (char*)r_ref, + pointer_type->size[r_arch]); + + /* Receive the pointed data only if not already sent */ + if (gras_dd_is_r_null(r_ref, pointer_type->size[r_arch])) { + VERB1("Not receiving data remotely referenced @%p since it's NULL", + *(void **)r_ref); + *(void**)l_data = NULL; + free(r_ref); + break; + } + + reference_is_to_recv = 0; + TRY { + if (detect_cycle) { + l_ref = xbt_dict_get_ext(refs, (char*)r_ref, pointer_type->size[r_arch]); + } else { + reference_is_to_recv = 1; + } + } CATCH(e) { + if (e.category != not_found_error) + RETHROW; + reference_is_to_recv = 1; + xbt_ex_free(e); + } + + if (reference_is_to_recv) { + int subsubcount = -1; + void *l_referenced=NULL; + + VERB2("Receiving a ref to '%s', remotely @%p", + sub_type->name, *(void**)r_ref); + if (sub_type->category_code == e_gras_datadesc_type_cat_array) { + /* Damn. Reference to a dynamic array. Allocating the space for it is more complicated */ + gras_dd_cat_array_t array_data = sub_type->category.array_data; + gras_datadesc_type_t subsub_type; + + subsubcount = array_data.fixed_size; + if (subsubcount == -1) + gras_dd_recv_int(sock, r_arch, &subsubcount); + + subsub_type = array_data.type; + + if (subsubcount != 0) + gras_dd_alloc_ref(refs, + subsub_type->size[GRAS_THISARCH] * subsubcount, + r_ref,pointer_type->size[r_arch], + (char**)&l_referenced, + detect_cycle); + else + l_referenced = NULL; + } else { + gras_dd_alloc_ref(refs,sub_type->size[GRAS_THISARCH], + r_ref,pointer_type->size[r_arch], + (char**)&l_referenced, + detect_cycle); + } + + if (l_referenced != NULL) + gras_datadesc_recv_rec(sock,state,refs, sub_type, + r_arch,r_ref,pointer_type->size[r_arch], + (char*)l_referenced, subsubcount, + detect_cycle || sub_type->cycle); + + *(void**)l_data=l_referenced; + VERB3("'%s' remotely referenced at %p locally at %p", + sub_type->name, *(void**)r_ref, l_referenced); + + } else { + VERB2("NOT receiving data remotely referenced @%p (already done, @%p here)", + *(void**)r_ref, *(void**)l_ref); + + *(void**)l_data=*l_ref; + + } + free(r_ref); + break; + } + + case e_gras_datadesc_type_cat_array: { + gras_dd_cat_array_t array_data; + int count; + char *ptr; + long int elm_size; + + array_data = type->category.array_data; + /* determine element count locally, or from caller, or from peer */ + count = array_data.fixed_size; + if (count == -1) + count = subsize; + if (count == -1) + gras_dd_recv_int(sock, r_arch, &count); + if (count == -1) + THROW1(mismatch_error,0, + "Invalid (=-1) array size for type %s",type->name); + + /* receive the content */ + sub_type = array_data.type; + if (sub_type->category_code == e_gras_datadesc_type_cat_scalar) { + VERB1("Array of %d scalars, get it in one shoot", count); + if (sub_type->aligned_size[GRAS_THISARCH] >= + sub_type->aligned_size[r_arch]) { + gras_trp_recv(sock, (char*)l_data, + sub_type->aligned_size[r_arch] * count); + if (r_arch != GRAS_THISARCH) + gras_dd_convert_elm(sub_type,count,r_arch, l_data,l_data); + } else { + ptr = xbt_malloc(sub_type->aligned_size[r_arch] * count); + + gras_trp_recv(sock, (char*)ptr, + sub_type->size[r_arch] * count); + if (r_arch != GRAS_THISARCH) + gras_dd_convert_elm(sub_type,count,r_arch, ptr,l_data); + free(ptr); + } + } else if (sub_type->category_code == e_gras_datadesc_type_cat_array && + sub_type->category.array_data.fixed_size >= 0 && + sub_type->category.array_data.type->category_code == e_gras_datadesc_type_cat_scalar) { + gras_datadesc_type_t subsub_type; + array_data = sub_type->category.array_data; + subsub_type = array_data.type; + + VERB1("Array of %d fixed array of scalars, get it in one shot",count); + if (subsub_type->aligned_size[GRAS_THISARCH] >= + subsub_type->aligned_size[r_arch]) { + gras_trp_recv(sock, (char*)l_data, + subsub_type->aligned_size[r_arch] * count * + array_data.fixed_size); + if (r_arch != GRAS_THISARCH) + gras_dd_convert_elm(subsub_type,count*array_data.fixed_size,r_arch, l_data,l_data); + } else { + ptr = xbt_malloc(subsub_type->aligned_size[r_arch] * count*array_data.fixed_size); + + gras_trp_recv(sock, (char*)ptr, + subsub_type->size[r_arch] * count*array_data.fixed_size); + if (r_arch != GRAS_THISARCH) + gras_dd_convert_elm(subsub_type,count*array_data.fixed_size,r_arch, ptr,l_data); + free(ptr); + } + + + } else { + /* not scalar content, get it recursively (may contain pointers) */ + elm_size = sub_type->aligned_size[GRAS_THISARCH]; + VERB2("Receive a %d-long array of %s",count, sub_type->name); + + ptr = l_data; + for (cpt=0; cptcycle); + + ptr += elm_size; + } + } + break; + } + + default: + xbt_die("Invalid type"); + } + + if (type->recv) + type->recv(type,state,l_data); + + if (!strcmp(type->name,"string")) + VERB1("value: '%s'",*(char**)l_data); + } /** * gras_datadesc_recv: * - * Get an instance of the datatype described by @type from the @socket, + * Get an instance of the datatype described by @type from the @socket, * and store a pointer to it in @dst * */ -gras_error_t -gras_datadesc_recv(gras_socket_t *sock, - gras_datadesc_type_t *type, - int r_arch, - void **dst) { - - gras_error_t errcode; - gras_dd_cbps_t *state = NULL; /* callback persistent state */ - gras_dict_t *refs; /* all references already sent */ - - TRY(gras_dict_new(&refs)); - TRY(gras_dd_cbps_new(&state)); - if (!dst) - CRITICAL0("Cannot receive data into a NULL pointer!"); - if (*dst) - VERB0("'*dst' not NULL in datadesc_recv. Data to be copied there without malloc"); - - errcode = gras_datadesc_recv_rec(sock, state, refs, type, - r_arch, NULL, 0, - (char **) dst); - - gras_dict_free(&refs); - gras_dd_cbps_free(&state); - - return errcode; +void +gras_datadesc_recv(gras_socket_t sock, + gras_datadesc_type_t type, + int r_arch, + void *dst) { + + xbt_ex_t e; + static gras_cbps_t state=NULL; /* callback persistent state */ + static xbt_dict_t refs=NULL; /* all references already sent */ + + if (!state) { + state = gras_cbps_new(); + refs = xbt_dict_new(); + } + + xbt_assert0(type,"called with NULL type descriptor"); + TRY { + gras_datadesc_recv_rec(sock, state, refs, type, + r_arch, NULL, 0, + (char *) dst,-1, + type->cycle); + } CLEANUP { + xbt_dict_reset(refs); + gras_cbps_reset(state); + } CATCH(e) { + RETHROW; + } } +