+
+#if 0
+/***
+ *** IDL compiling functions
+ ***/
+
+#define gras_datadesc_send_rec foo /* Just to make sure the copypast was ok */
+#define gras_datadesc_send foo /* Just to make sure the copypast was ok */
+#define gras_datadesc_recv_rec foo /* Just to make sure the copypast was ok */
+#define gras_datadesc_recv foo /* Just to make sure the copypast was ok */
+
+static xbt_error_t
+gras_datadesc_gen_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_error_t errcode;
+ int cpt;
+ gras_datadesc_type_t sub_type; /* type on which we recurse */
+
+ printf(" VERB2(\"Send a %s (%s)\");\n",
+ type->name, gras_datadesc_cat_names[type->category_code]);
+
+ xbt_assert0(!type->send, "Callbacks not implemented in IDL compiler");
+
+ switch (type->category_code) {
+ case e_gras_datadesc_type_cat_scalar:
+ printf(" TRY(gras_trp_chunk_send(sock, data, %lu));\n",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;
+ xbt_assert1(struct_data.closed,
+ "Please call gras_datadesc_declare_struct_close on %s before sending it",
+ type->name);
+ printf(" VERB1(\">> Send all fields of the structure %s\");\n",type->name);
+ xbt_dynar_foreach(struct_data.fields, cpt, field) {
+ field_data = data;
+ field_data += field->offset[GRAS_THISARCH];
+
+ sub_type = field->type;
+
+ xbt_assert0(!field->pre, "Callbacks not implemented in IDL compiler");
+
+ printf(" VERB1(\"Send field %s\");\n",field->name);
+ printf(" data += %lu;\n",field->offset[GRAS_THISARCH]);
+ TRY(gras_datadesc_gen_send_rec(sock,state,refs,sub_type, field_data, detect_cycle || sub_type->cycle));
+ printf(" data -= %lu;\n",field->offset[GRAS_THISARCH]);
+
+ xbt_assert0(!field->post, "Callbacks not implemented in IDL compiler");
+ }
+ printf(" 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 */
+ printf(" field_num = union_data.selector(state, data);\n");
+
+ printf(" xbt_assert0(field_num > 0,\n");
+ printf(" \"union field selector of %s gave a negative value\");\n",type->name);
+
+ printf(" xbt_assert3(field_num < xbt_dynar_length(union_data.fields),\n");
+ printf(" \"union field selector of %s returned %%d but there is only %lu fields\",field_num);\n",
+ type->name, xbt_dynar_length(union_data.fields));
+
+ /* Send the field number */
+ printf("TRY(gras_dd_send_int(sock, field_num));\n");
+
+ /* Send the content */
+ field = xbt_dynar_get_as(union_data.fields, field_num, gras_dd_cat_field_t);
+ sub_type = field->type;
+
+ if (field->pre)
+ field->pre(state,data);
+
+ TRY(gras_datadesc_gen_send_rec(sock,state,refs, sub_type, data, detect_cycle || sub_type->cycle));
+
+ if (field->post)
+ field->post(state,data);
+
+ break;
+ }
+
+ case e_gras_datadesc_type_cat_ref: {
+ gras_dd_cat_ref_t ref_data;
+
+ void **ref=(void**)data;
+ void *dummy;
+
+ 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)(state,data);
+ TRY(gras_dd_send_int(sock, sub_type->code));
+ }
+
+ /* 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);
+ }
+
+ 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 = detect_cycle
+ ? xbt_dict_get_ext(refs,(char*)ref, sizeof(void*), &dummy)
+ : mismatch_error;
+ if (errcode == mismatch_error) {
+ VERB1("Sending data referenced at %p", (void*)*ref);
+ if (detect_cycle)
+ xbt_dict_set_ext(refs, (char*)ref, sizeof(void*), ref, NULL);
+ TRY(gras_datadesc_gen_send_rec(sock,state,refs, sub_type, *ref, detect_cycle || sub_type->cycle));
+
+ } else if (errcode == no_error) {
+ VERB1("Not sending data referenced at %p (already done)", (void*)*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,data);
+ xbt_assert1(count >=0,
+ "Invalid (negative) array size for type %s",type->name);
+ TRY(gras_dd_send_int(sock, count));
+ }
+
+ /* 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, send it in one shot",count);
+ TRY(gras_trp_chunk_send(sock, data,
+ sub_type->aligned_size[GRAS_THISARCH] * 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, send it in one shot",count);
+ TRY(gras_trp_chunk_send(sock, data,
+ sub_type->category.array_data.type->aligned_size[GRAS_THISARCH]
+ * count * sub_type->category.array_data.fixed_size));
+
+ } else {
+ for (cpt=0; cpt<count; cpt++) {
+ TRY(gras_datadesc_gen_send_rec(sock,state,refs, sub_type, ptr, detect_cycle || sub_type->cycle));
+ ptr += elm_size;
+ }
+ }
+ break;
+ }
+
+ default:
+ xbt_assert0(0, "Invalid type");
+ }
+
+ return no_error;
+}
+
+/**
+ * gras_datadesc_gen_send:
+ *
+ * Copy the data pointed by src and described by type to the socket
+ *
+ */
+xbt_error_t gras_datadesc_gen_send(gras_socket_t sock,
+ gras_datadesc_type_t type,
+ void *src) {
+
+ xbt_error_t errcode;
+ gras_cbps_t state;
+ xbt_dict_t refs; /* all references already sent */
+
+ refs = xbt_dict_new();
+ state = gras_cbps_new();
+
+ printf("xbt_error_t gras_%s_send(gras_socket_t sock,void *dst){\n",
+ type->name);
+ errcode = gras_datadesc_gen_send_rec(sock,state,refs,type,(char*)src, type->cycle);
+ printf("}\n");
+
+ xbt_dict_free(&refs);
+ gras_cbps_free(&state);
+
+ return errcode;
+}
+
+/**
+ * gras_datadesc_gen_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 ;)
+ */
+static xbt_error_t
+gras_datadesc_gen_recv_rec(gras_socket_t sock,
+ gras_cbps_t state,
+ xbt_dict_t refs,
+ gras_datadesc_type_t type,
+ int r_arch,
+ char **r_data,
+ long int r_lgr,
+ char *l_data,
+ int subsize,
+ int detect_cycle) {
+
+ xbt_error_t errcode;
+ int cpt;
+ gras_datadesc_type_t sub_type;
+
+ VERB2("Recv a %s @%p", type->name, (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]) {
+ TRY(gras_trp_chunk_recv(sock, (char*)l_data, type->size[r_arch]));
+ if (r_arch != GRAS_THISARCH)
+ TRY(gras_dd_convert_elm(type,1,r_arch, l_data,l_data));
+ } else {
+ void *ptr = xbt_malloc(type->size[r_arch]);
+
+ TRY(gras_trp_chunk_recv(sock, (char*)ptr, type->size[r_arch]));
+ if (r_arch != GRAS_THISARCH)
+ TRY(gras_dd_convert_elm(type,1,r_arch, ptr,l_data));
+ xbt_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;
+
+ TRY(gras_datadesc_gen_recv_rec(sock,state,refs, sub_type,
+ r_arch,NULL,0,
+ field_data,-1,
+ detect_cycle || sub_type->cycle));
+ }
+ 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 */
+ 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 < xbt_dynar_length(union_data.fields))
+ RAISE3(mismatch_error,
+ "Received union field for %s is %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;
+
+ TRY(gras_datadesc_gen_recv_rec(sock,state,refs, sub_type,
+ r_arch,NULL,0,
+ l_data,-1,
+ detect_cycle || sub_type->cycle));
+ break;
+ }
+
+ case e_gras_datadesc_type_cat_ref: {
+ char **r_ref = NULL;
+ char **l_ref = NULL;
+ gras_dd_cat_ref_t ref_data;
+
+ 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;
+ TRY(gras_dd_recv_int(sock, r_arch, &ref_code));
+ TRY(gras_datadesc_by_id(ref_code, &sub_type));
+ }
+
+ /* 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]);
+
+ TRY(gras_trp_chunk_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;
+ xbt_free(r_ref);
+ break;
+ }
+
+ errcode = detect_cycle
+ ? xbt_dict_get_ext(refs,
+ (char*)r_ref, pointer_type->size[r_arch],
+ (void**)&l_ref)
+ : mismatch_error;
+
+ if (errcode == mismatch_error) {
+ int subsubcount = 0;
+ 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 size 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 == 0)
+ TRY(gras_dd_recv_int(sock, r_arch, &subsubcount));
+
+ subsub_type = array_data.type;
+
+
+ TRY(gras_dd_alloc_ref(refs,
+ subsub_type->size[GRAS_THISARCH] * subsubcount,
+ r_ref,pointer_type->size[r_arch],
+ (char**)&l_referenced,
+ detect_cycle));
+ } else {
+ TRY(gras_dd_alloc_ref(refs,sub_type->size[GRAS_THISARCH],
+ r_ref,pointer_type->size[r_arch],
+ (char**)&l_referenced,
+ detect_cycle));
+ }
+
+ TRY(gras_datadesc_gen_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 if (errcode == no_error) {
+ VERB2("NOT receiving data remotely referenced @%p (already done, @%p here)",
+ *(void**)r_ref, *(void**)l_ref);
+
+ *(void**)l_data=*l_ref;
+
+ } else {
+ return errcode;
+ }
+ xbt_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 == 0)
+ count = subsize;
+ if (count == 0)
+ TRY(gras_dd_recv_int(sock, r_arch, &count));
+ if (count == 0)
+ RAISE1(mismatch_error,
+ "Invalid (=0) 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]) {
+ TRY(gras_trp_chunk_recv(sock, (char*)l_data,
+ sub_type->aligned_size[r_arch] * count));
+ if (r_arch != GRAS_THISARCH)
+ TRY(gras_dd_convert_elm(sub_type,count,r_arch, l_data,l_data));
+ } else {
+ ptr = xbt_malloc(sub_type->aligned_size[r_arch] * count);
+
+ TRY(gras_trp_chunk_recv(sock, (char*)ptr,
+ sub_type->size[r_arch] * count));
+ if (r_arch != GRAS_THISARCH)
+ TRY(gras_dd_convert_elm(sub_type,count,r_arch, ptr,l_data));
+ xbt_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]) {
+ TRY(gras_trp_chunk_recv(sock, (char*)l_data,
+ subsub_type->aligned_size[r_arch] * count *
+ array_data.fixed_size));
+ if (r_arch != GRAS_THISARCH)
+ TRY(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);
+
+ TRY(gras_trp_chunk_recv(sock, (char*)ptr,
+ subsub_type->size[r_arch] * count*array_data.fixed_size));
+ if (r_arch != GRAS_THISARCH)
+ TRY(gras_dd_convert_elm(subsub_type,count*array_data.fixed_size,r_arch, ptr,l_data));
+ xbt_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; cpt<count; cpt++) {
+ TRY(gras_datadesc_gen_recv_rec(sock,state,refs, sub_type,
+ r_arch, NULL, 0, ptr,-1,
+ detect_cycle || sub_type->cycle));
+ ptr += elm_size;
+ }
+ }
+ break;
+ }
+
+ default:
+ xbt_assert0(0, "Invalid type");
+ }
+
+ if (type->recv)
+ type->recv(state,l_data);
+
+ return no_error;
+}
+
+/**
+ * gras_datadesc_gen_recv:
+ *
+ * Get an instance of the datatype described by @type from the @socket,
+ * and store a pointer to it in @dst
+ *
+ */
+xbt_error_t
+gras_datadesc_gen_recv(gras_socket_t sock,
+ gras_datadesc_type_t type,
+ int r_arch,
+ void *dst) {
+
+ xbt_error_t errcode;
+ gras_cbps_t state; /* callback persistent state */
+ xbt_dict_t refs; /* all references already sent */
+
+ refs = xbt_dict_new();
+ state = gras_cbps_new();
+
+ printf("xbt_error_t gras_%s_recv(gras_socket_t sock,void *dst){\n",
+ type->name);
+
+ errcode = gras_datadesc_gen_recv_rec(sock, state, refs, type,
+ r_arch, NULL, 0,
+ (char *) dst,-1,
+ type->cycle);
+
+ printf("}\n");
+ xbt_dict_free(&refs);
+ gras_cbps_free(&state);
+
+ return errcode;
+}
+#endif
