src/surf/surfxml_parseplatf.c

   1 /* Copyright (c) 2006, 2007, 2008, 2009, 2010, 2011. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "xbt/misc.h"
   8 #include "xbt/log.h"
   9 #include "xbt/str.h"
  10 #include "xbt/dict.h"
  11 #include "surf/surfxml_parse_private.h"
  12 #include "surf/surf_private.h"
  13
  14 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  15
  16 /*
  17  *  Allow the cluster tag to mess with the parsing buffer.
  18  * (this will probably become obsolete once the cluster tag do not mess with the parsing callbacks directly)
  19  */
  20
  21 /* This buffer is used to store the original buffer before substituting it by out own buffer. Useful for the cluster tag */
  22 static xbt_dynar_t surfxml_bufferstack_stack = NULL;
  23 int surfxml_bufferstack_size = 2048;
  24
  25 static char *old_buff = NULL;
  26
  27 unsigned int surfxml_buffer_stack_stack_ptr;
  28 unsigned int surfxml_buffer_stack_stack[1024];
  29
  30
  31 void surfxml_bufferstack_push(int new)
  32 {
  33   if (!new)
  34     old_buff = surfxml_bufferstack;
  35   else {
  36     xbt_dynar_push(surfxml_bufferstack_stack, &surfxml_bufferstack);
  37     surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
  38   }
  39 }
  40
  41 void surfxml_bufferstack_pop(int new)
  42 {
  43   if (!new)
  44     surfxml_bufferstack = old_buff;
  45   else {
  46     free(surfxml_bufferstack);
  47     xbt_dynar_pop(surfxml_bufferstack_stack, &surfxml_bufferstack);
  48   }
  49 }
  50
  51 /*
  52  * Pass arguments to parsing callback as structures to save some time (and allow callbacks to ignore some)
  53  */
  54
  55 surf_parsing_router_arg_t struct_router = NULL;
  56 surf_parsing_cluster_arg_t struct_cluster = NULL;
  57 surf_parsing_peer_arg_t struct_peer = NULL;
  58 surf_parsing_link_arg_t struct_lnk = NULL;
  59
  60
  61 /*
  62  * Trace related stuff
  63  */
  64
  65 xbt_dict_t traces_set_list = NULL;
  66 xbt_dict_t trace_connect_list_host_avail = NULL;
  67 xbt_dict_t trace_connect_list_power = NULL;
  68 xbt_dict_t trace_connect_list_link_avail = NULL;
  69 xbt_dict_t trace_connect_list_bandwidth = NULL;
  70 xbt_dict_t trace_connect_list_latency = NULL;
  71
  72 static double trace_periodicity = -1.0;
  73 static char *trace_file = NULL;
  74 static char *trace_id = NULL;
  75
  76 static void parse_Stag_trace(void)
  77 {
  78   surf_parse_models_setup(); /* ensure that the models are created after the last <config> tag. See comment in simgrid.dtd */
  79   trace_id = xbt_strdup(A_surfxml_trace_id);
  80   trace_file = xbt_strdup(A_surfxml_trace_file);
  81   surf_parse_get_double(&trace_periodicity, A_surfxml_trace_periodicity);
  82 }
  83
  84 static void parse_Etag_trace(void)
  85 {
  86   tmgr_trace_t trace;
  87   if (!trace_file || strcmp(trace_file, "") != 0) {
  88     trace = tmgr_trace_new(trace_file);
  89   } else {
  90     if (strcmp(surfxml_pcdata, "") == 0)
  91       trace = NULL;
  92     else
  93       trace =
  94           tmgr_trace_new_from_string(trace_id, surfxml_pcdata,
  95                                      trace_periodicity);
  96   }
  97   xbt_dict_set(traces_set_list, trace_id, (void *) trace, NULL);
  98   xbt_free(trace_file);
  99   trace_file = NULL;
 100   xbt_free(trace_id);
 101   trace_id = NULL;
 102 }
 103
 104 static void parse_Stag_trace_connect(void)
 105 {
 106   surf_parse_models_setup(); /* ensure that the models are created after the last <config> tag. See comment in simgrid.dtd */
 107
 108   xbt_assert(xbt_dict_get_or_null
 109               (traces_set_list, A_surfxml_trace_connect_trace),
 110               "Cannot connect trace %s to %s: trace unknown",
 111               A_surfxml_trace_connect_trace,
 112               A_surfxml_trace_connect_element);
 113
 114   switch (A_surfxml_trace_connect_kind) {
 115   case A_surfxml_trace_connect_kind_HOST_AVAIL:
 116     xbt_dict_set(trace_connect_list_host_avail,
 117                  A_surfxml_trace_connect_trace,
 118                  xbt_strdup(A_surfxml_trace_connect_element), free);
 119     break;
 120   case A_surfxml_trace_connect_kind_POWER:
 121     xbt_dict_set(trace_connect_list_power, A_surfxml_trace_connect_trace,
 122                  xbt_strdup(A_surfxml_trace_connect_element), free);
 123     break;
 124   case A_surfxml_trace_connect_kind_LINK_AVAIL:
 125     xbt_dict_set(trace_connect_list_link_avail,
 126                  A_surfxml_trace_connect_trace,
 127                  xbt_strdup(A_surfxml_trace_connect_element), free);
 128     break;
 129   case A_surfxml_trace_connect_kind_BANDWIDTH:
 130     xbt_dict_set(trace_connect_list_bandwidth,
 131                  A_surfxml_trace_connect_trace,
 132                  xbt_strdup(A_surfxml_trace_connect_element), free);
 133     break;
 134   case A_surfxml_trace_connect_kind_LATENCY:
 135     xbt_dict_set(trace_connect_list_latency, A_surfxml_trace_connect_trace,
 136                  xbt_strdup(A_surfxml_trace_connect_element), free);
 137     break;
 138   default:
 139     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
 140             A_surfxml_trace_connect_trace, A_surfxml_trace_connect_element);
 141     break;
 142   }
 143 }
 144
 145
 146 /* Init and free parse data */
 147
 148 static void init_data(void)
 149 {
 150   if (!surfxml_bufferstack_stack)
 151     surfxml_bufferstack_stack = xbt_dynar_new(sizeof(char *), NULL);
 152
 153   traces_set_list = xbt_dict_new();
 154   trace_connect_list_host_avail = xbt_dict_new();
 155   trace_connect_list_power = xbt_dict_new();
 156   trace_connect_list_link_avail = xbt_dict_new();
 157   trace_connect_list_bandwidth = xbt_dict_new();
 158   trace_connect_list_latency = xbt_dict_new();
 159
 160   surfxml_add_callback(STag_surfxml_trace_cb_list, &parse_Stag_trace);
 161   surfxml_add_callback(ETag_surfxml_trace_cb_list, &parse_Etag_trace);
 162   surfxml_add_callback(STag_surfxml_trace_connect_cb_list,
 163              &parse_Stag_trace_connect);
 164 }
 165
 166 static void free_data(void)
 167 {
 168   xbt_dict_free(&trace_connect_list_host_avail);
 169   xbt_dict_free(&trace_connect_list_power);
 170   xbt_dict_free(&trace_connect_list_link_avail);
 171   xbt_dict_free(&trace_connect_list_bandwidth);
 172   xbt_dict_free(&trace_connect_list_latency);
 173   xbt_dict_free(&traces_set_list);
 174   xbt_dict_free(&random_data_list);
 175   xbt_dynar_free(&surfxml_bufferstack_stack);
 176 }
 177
 178 /* This function acts as a main in the parsing area. */
 179 void parse_platform_file(const char *file)
 180 {
 181   int parse_status;
 182
 183   surf_parse_reset_callbacks();
 184   surf_parse_add_callback_config();
 185
 186   surfxml_buffer_stack_stack_ptr = 1;
 187   surfxml_buffer_stack_stack[0] = 0;
 188
 189   surf_parse_open(file);
 190   init_data();
 191   parse_status = surf_parse();
 192   free_data();
 193   surf_parse_close();
 194   if (parse_status)
 195     xbt_die("Parse error in %s", file);
 196
 197   surf_config_models_create_elms();
 198 }
 199