+ 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;
+}
+
+/**
+ * gras_datadesc_recv_rec:
+ *
+ * Do the data reception job recursively.
+ */
+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_retrieve_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; cpt<count; cpt++) {
+ TRY(gras_datadesc_recv_rec(sock,state,refs, sub_type,
+ r_arch, NULL, 0, &ptr));
+ ptr += elm_size;
+ }
+ break;
+ }
+
+ default:
+ gras_assert0(0, "Invalid type");
+ }
+
+ return no_error;