X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/02305db551e2a0804a3fd7b24622be6b12285572..e62bba7ea511413feb10d9de5c306061a8560c54:/src/gras/DataDesc/ddt_exchange.c diff --git a/src/gras/DataDesc/ddt_exchange.c b/src/gras/DataDesc/ddt_exchange.c index 01eab9e726..a35b2de110 100644 --- a/src/gras/DataDesc/ddt_exchange.c +++ b/src/gras/DataDesc/ddt_exchange.c @@ -2,325 +2,600 @@ /* ddt_exchange - send/recv data described */ -/* Copyright (c) 2003 Olivier Aumage. */ -/* Copyright (c) 2003, 2004, 2005 Martin Quinson. */ -/* All rights reserved. */ +/* 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 "xbt/ex.h" #include "gras/DataDesc/datadesc_private.h" -#include "gras/Transport/transport_interface.h" /* gras_trp_chunk_send/recv */ +#include "gras/Transport/transport_interface.h" /* gras_trp_send/recv */ -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ddt_exchange,datadesc, - "Sending data over the network"); -const char *gras_datadesc_cat_names[9] = { - "undefined", - "scalar", "struct", "union", "ref", "array", "ignored", - "invalid"}; +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 xbt_error_t gras_dd_send_int(gras_socket_t sock, int i); -static _XBT_INLINE xbt_error_t gras_dd_recv_int(gras_socket_t sock, int r_arch, int *i); - -static _XBT_INLINE xbt_error_t -gras_dd_alloc_ref(xbt_dict_t refs, long int size, - char **r_ref, long int r_len, - char **l_ref, int detect_cycle); - -static _XBT_INLINE int -gras_dd_is_r_null(char **r_ptr, long int length); - -static _XBT_INLINE xbt_error_t -gras_dd_send_int(gras_socket_t sock,int i) { - - if (!int_type) { - int_type = gras_datadesc_by_name("int"); - xbt_assert(int_type); - } - - DEBUG1("send_int(%d)",i); - return gras_trp_chunk_send(sock, (char*)&i, int_type->size[GRAS_THISARCH]); +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 _XBT_INLINE xbt_error_t +static XBT_INLINE void gras_dd_recv_int(gras_socket_t sock, int r_arch, int *i) { - xbt_error_t errcode; - - 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]) { - TRYOLD(gras_trp_chunk_recv(sock, (char*)i, int_type->size[r_arch])); - if (r_arch != GRAS_THISARCH) - TRYOLD(gras_dd_convert_elm(int_type,1,r_arch, i,i)); - } else { - void *ptr = xbt_malloc(int_type->size[r_arch]); - - TRYOLD(gras_trp_chunk_recv(sock, (char*)ptr, int_type->size[r_arch])); - if (r_arch != GRAS_THISARCH) - TRYOLD(gras_dd_convert_elm(int_type,1,r_arch, ptr,i)); - free(ptr); - } - DEBUG1("recv_int(%d)",*i); - - return no_error; + + 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 _XBT_INLINE 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, - int detect_cycle) { - char *l_data = NULL; - - 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 *)); - - CRITICAL0("Check for cycles"); - 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, free); - } - return no_error; + 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; + + 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. * */ -xbt_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; } /*** *** Direct use functions ***/ -static xbt_error_t +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_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->send) { - type->send(type,state,data); - } - - switch (type->category_code) { - case e_gras_datadesc_type_cat_scalar: - TRYOLD(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; - 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) - field->send(type,state,field_data); - - VERB1("Send field %s",field->name); - TRYOLD(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 */ - TRYOLD(gras_dd_send_int(sock, field_num)); - - /* 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); - - TRYOLD(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; - 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)(type,state,data); - TRYOLD(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); - } - - TRYOLD(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); - TRYOLD(gras_datadesc_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(type,state,data); - xbt_assert1(count >=0, - "Invalid (negative) array size for type %s",type->name); - TRYOLD(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); - TRYOLD(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); - TRYOLD(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; cptcycle)); - ptr += elm_size; - } - } - break; - } - - default: - xbt_assert0(0, "Invalid type"); - } - - return no_error; + 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"); + } } /** @@ -329,25 +604,29 @@ gras_datadesc_send_rec(gras_socket_t sock, * Copy the data pointed by src and described by type to the socket * */ -xbt_error_t gras_datadesc_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 */ - - xbt_assert0(type,"called with NULL type descriptor"); - - refs = xbt_dict_new(); - state = gras_cbps_new(); - - errcode = gras_datadesc_send_rec(sock,state,refs,type,(char*)src, type->cycle); - - xbt_dict_free(&refs); - gras_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; + } } /** @@ -356,875 +635,339 @@ xbt_error_t gras_datadesc_send(gras_socket_t sock, * 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). - * + * 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_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]) { - TRYOLD(gras_trp_chunk_recv(sock, (char*)l_data, type->size[r_arch])); - if (r_arch != GRAS_THISARCH) - TRYOLD(gras_dd_convert_elm(type,1,r_arch, l_data,l_data)); - } else { - void *ptr = xbt_malloc(type->size[r_arch]); - - TRYOLD(gras_trp_chunk_recv(sock, (char*)ptr, type->size[r_arch])); - if (r_arch != GRAS_THISARCH) - TRYOLD(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; - - TRYOLD(gras_datadesc_recv_rec(sock,state,refs, sub_type, - r_arch,NULL,0, - field_data,-1, - detect_cycle || sub_type->cycle)); - - if (field->recv) - 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 */ - TRYOLD(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; - - TRYOLD(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; - - 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; - TRYOLD(gras_dd_recv_int(sock, r_arch, &ref_code)); - TRYOLD(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]); - - TRYOLD(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; - 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) - TRYOLD(gras_dd_recv_int(sock, r_arch, &subsubcount)); - - subsub_type = array_data.type; - - - TRYOLD(gras_dd_alloc_ref(refs, - subsub_type->size[GRAS_THISARCH] * subsubcount, - r_ref,pointer_type->size[r_arch], - (char**)&l_referenced, - detect_cycle)); - } else { - TRYOLD(gras_dd_alloc_ref(refs,sub_type->size[GRAS_THISARCH], - r_ref,pointer_type->size[r_arch], - (char**)&l_referenced, - detect_cycle)); - } - - TRYOLD(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 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; - } - 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) - TRYOLD(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]) { - TRYOLD(gras_trp_chunk_recv(sock, (char*)l_data, - sub_type->aligned_size[r_arch] * count)); - if (r_arch != GRAS_THISARCH) - TRYOLD(gras_dd_convert_elm(sub_type,count,r_arch, l_data,l_data)); - } else { - ptr = xbt_malloc(sub_type->aligned_size[r_arch] * count); - - TRYOLD(gras_trp_chunk_recv(sock, (char*)ptr, - sub_type->size[r_arch] * count)); - if (r_arch != GRAS_THISARCH) - TRYOLD(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]) { - TRYOLD(gras_trp_chunk_recv(sock, (char*)l_data, - subsub_type->aligned_size[r_arch] * count * - array_data.fixed_size)); - if (r_arch != GRAS_THISARCH) - TRYOLD(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); - - TRYOLD(gras_trp_chunk_recv(sock, (char*)ptr, - subsub_type->size[r_arch] * count*array_data.fixed_size)); - if (r_arch != GRAS_THISARCH) - TRYOLD(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_assert0(0, "Invalid type"); - } - - if (type->recv) - type->recv(type,state,l_data); - - return no_error; +static void +gras_datadesc_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) { + + unsigned int cpt; + gras_datadesc_type_t sub_type; + xbt_ex_t e; + + 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]) { + 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 * */ -xbt_error_t -gras_datadesc_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(); - - xbt_assert0(type,"called with NULL type descriptor"); - errcode = gras_datadesc_recv_rec(sock, state, refs, type, - r_arch, NULL, 0, - (char *) dst,-1, - type->cycle); - - xbt_dict_free(&refs); - gras_cbps_free(&state); - - return errcode; -} - -#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(" TRYOLD(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->send, "Callbacks not implemented in IDL compiler"); - - printf(" VERB1(\"Send field %s\");\n",field->name); - printf(" data += %lu;\n",field->offset[GRAS_THISARCH]); - TRYOLD(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->recv, "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("TRYOLD(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->send) - field->send(state,data); - - TRYOLD(gras_datadesc_gen_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; - 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); - TRYOLD(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); - } - - TRYOLD(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); - TRYOLD(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); - TRYOLD(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); - TRYOLD(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); - TRYOLD(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; cptcycle)); - 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, - detect_cycle || sub_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]) { - TRYOLD(gras_trp_chunk_recv(sock, (char*)l_data, type->size[r_arch])); - if (r_arch != GRAS_THISARCH) - TRYOLD(gras_dd_convert_elm(type,1,r_arch, l_data,l_data)); - } else { - void *ptr = xbt_malloc(type->size[r_arch]); - - TRYOLD(gras_trp_chunk_recv(sock, (char*)ptr, type->size[r_arch])); - if (r_arch != GRAS_THISARCH) - TRYOLD(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; - - TRYOLD(gras_datadesc_gen_recv_rec(sock,state,refs, sub_type, - r_arch,NULL,0, - field_data,-1, - detect_cycle || sub_type->cycle)); - if (field->recv) - field->recv(type,state,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 */ - TRYOLD(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; - - TRYOLD(gras_datadesc_gen_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,data); - - 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; - TRYOLD(gras_dd_recv_int(sock, r_arch, &ref_code)); - TRYOLD(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]); - - TRYOLD(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; - 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) - TRYOLD(gras_dd_recv_int(sock, r_arch, &subsubcount)); - - subsub_type = array_data.type; - - - TRYOLD(gras_dd_alloc_ref(refs, - subsub_type->size[GRAS_THISARCH] * subsubcount, - r_ref,pointer_type->size[r_arch], - (char**)&l_referenced, - detect_cycle)); - } else { - TRYOLD(gras_dd_alloc_ref(refs,sub_type->size[GRAS_THISARCH], - r_ref,pointer_type->size[r_arch], - (char**)&l_referenced, - detect_cycle)); - } - - TRYOLD(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; - } - 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) - TRYOLD(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]) { - TRYOLD(gras_trp_chunk_recv(sock, (char*)l_data, - sub_type->aligned_size[r_arch] * count)); - if (r_arch != GRAS_THISARCH) - TRYOLD(gras_dd_convert_elm(sub_type,count,r_arch, l_data,l_data)); - } else { - ptr = xbt_malloc(sub_type->aligned_size[r_arch] * count); - - TRYOLD(gras_trp_chunk_recv(sock, (char*)ptr, - sub_type->size[r_arch] * count)); - if (r_arch != GRAS_THISARCH) - TRYOLD(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]) { - TRYOLD(gras_trp_chunk_recv(sock, (char*)l_data, - subsub_type->aligned_size[r_arch] * count * - array_data.fixed_size)); - if (r_arch != GRAS_THISARCH) - TRYOLD(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); - - TRYOLD(gras_trp_chunk_recv(sock, (char*)ptr, - subsub_type->size[r_arch] * count*array_data.fixed_size)); - if (r_arch != GRAS_THISARCH) - TRYOLD(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_assert0(0, "Invalid type"); - } - - if (type->recv) - type->recv(type,state,l_data); - - return no_error; +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; + } } -/** - * 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, - sub_type->cycle); - - printf("}\n"); - xbt_dict_free(&refs); - gras_cbps_free(&state); - - return errcode; -} -#endif