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 "simgrid/platf.h"
  12 #include "surf/surfxml_parse_private.h"
  13 #include "surf/surf_private.h"
  14
  15 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  16
  17 /*
  18  *  Allow the cluster tag to mess with the parsing buffer.
  19  * (this will probably become obsolete once the cluster tag do not mess with the parsing callbacks directly)
  20  */
  21
  22 /* This buffer is used to store the original buffer before substituting it by out own buffer. Useful for the cluster tag */
  23 static xbt_dynar_t surfxml_bufferstack_stack = NULL;
  24 int surfxml_bufferstack_size = 2048;
  25
  26 static char *old_buff = NULL;
  27
  28 unsigned int surfxml_buffer_stack_stack_ptr;
  29 unsigned int surfxml_buffer_stack_stack[1024];
  30
  31
  32 void surfxml_bufferstack_push(int new)
  33 {
  34   if (!new)
  35     old_buff = surfxml_bufferstack;
  36   else {
  37     xbt_dynar_push(surfxml_bufferstack_stack, &surfxml_bufferstack);
  38     surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
  39   }
  40 }
  41
  42 void surfxml_bufferstack_pop(int new)
  43 {
  44   if (!new)
  45     surfxml_bufferstack = old_buff;
  46   else {
  47     free(surfxml_bufferstack);
  48     xbt_dynar_pop(surfxml_bufferstack_stack, &surfxml_bufferstack);
  49   }
  50 }
  51
  52 /*
  53  * Trace related stuff
  54  */
  55
  56 xbt_dict_t traces_set_list = NULL;
  57 xbt_dict_t trace_connect_list_host_avail = NULL;
  58 xbt_dict_t trace_connect_list_power = NULL;
  59 xbt_dict_t trace_connect_list_link_avail = NULL;
  60 xbt_dict_t trace_connect_list_bandwidth = NULL;
  61 xbt_dict_t trace_connect_list_latency = NULL;
  62
  63 static double trace_periodicity = -1.0;
  64 static char *trace_file = NULL;
  65 static char *trace_id = NULL;
  66
  67 static void parse_Stag_trace(void)
  68 {
  69   trace_id = xbt_strdup(A_surfxml_trace_id);
  70   trace_file = xbt_strdup(A_surfxml_trace_file);
  71   trace_periodicity = surf_parse_get_double(A_surfxml_trace_periodicity);
  72 }
  73
  74 static void parse_Etag_trace(void)
  75 {
  76   tmgr_trace_t trace;
  77   if (!trace_file || strcmp(trace_file, "") != 0) {
  78     trace = tmgr_trace_new(trace_file);
  79   } else {
  80     if (strcmp(surfxml_pcdata, "") == 0)
  81       trace = NULL;
  82     else
  83       trace =
  84           tmgr_trace_new_from_string(trace_id, surfxml_pcdata,
  85                                      trace_periodicity);
  86   }
  87   xbt_dict_set(traces_set_list, trace_id, (void *) trace, NULL);
  88   xbt_free(trace_file);
  89   trace_file = NULL;
  90   xbt_free(trace_id);
  91   trace_id = NULL;
  92 }
  93
  94 static void parse_Stag_trace_connect(void)
  95 {
  96   xbt_assert(xbt_dict_get_or_null
  97               (traces_set_list, A_surfxml_trace_connect_trace),
  98               "Cannot connect trace %s to %s: trace unknown",
  99               A_surfxml_trace_connect_trace,
 100               A_surfxml_trace_connect_element);
 101
 102   switch (A_surfxml_trace_connect_kind) {
 103   case A_surfxml_trace_connect_kind_HOST_AVAIL:
 104     xbt_dict_set(trace_connect_list_host_avail,
 105                  A_surfxml_trace_connect_trace,
 106                  xbt_strdup(A_surfxml_trace_connect_element), free);
 107     break;
 108   case A_surfxml_trace_connect_kind_POWER:
 109     xbt_dict_set(trace_connect_list_power, A_surfxml_trace_connect_trace,
 110                  xbt_strdup(A_surfxml_trace_connect_element), free);
 111     break;
 112   case A_surfxml_trace_connect_kind_LINK_AVAIL:
 113     xbt_dict_set(trace_connect_list_link_avail,
 114                  A_surfxml_trace_connect_trace,
 115                  xbt_strdup(A_surfxml_trace_connect_element), free);
 116     break;
 117   case A_surfxml_trace_connect_kind_BANDWIDTH:
 118     xbt_dict_set(trace_connect_list_bandwidth,
 119                  A_surfxml_trace_connect_trace,
 120                  xbt_strdup(A_surfxml_trace_connect_element), free);
 121     break;
 122   case A_surfxml_trace_connect_kind_LATENCY:
 123     xbt_dict_set(trace_connect_list_latency, A_surfxml_trace_connect_trace,
 124                  xbt_strdup(A_surfxml_trace_connect_element), free);
 125     break;
 126   default:
 127     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
 128             A_surfxml_trace_connect_trace, A_surfxml_trace_connect_element);
 129     break;
 130   }
 131 }
 132
 133 /* This function acts as a main in the parsing area. */
 134 void parse_platform_file(const char *file)
 135 {
 136   int parse_status;
 137
 138   surf_parse_reset_callbacks();
 139
 140   /* Register classical callbacks */
 141   surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties_XML);
 142   routing_register_callbacks();
 143
 144   /* init the flex parser */
 145   surfxml_buffer_stack_stack_ptr = 1;
 146   surfxml_buffer_stack_stack[0] = 0;
 147
 148   surf_parse_open(file);
 149
 150   /* Init my data */
 151   if (!surfxml_bufferstack_stack)
 152     surfxml_bufferstack_stack = xbt_dynar_new(sizeof(char *), NULL);
 153
 154   traces_set_list = xbt_dict_new();
 155   trace_connect_list_host_avail = xbt_dict_new();
 156   trace_connect_list_power = xbt_dict_new();
 157   trace_connect_list_link_avail = xbt_dict_new();
 158   trace_connect_list_bandwidth = xbt_dict_new();
 159   trace_connect_list_latency = xbt_dict_new();
 160
 161   surfxml_add_callback(STag_surfxml_trace_cb_list, &parse_Stag_trace);
 162   surfxml_add_callback(ETag_surfxml_trace_cb_list, &parse_Etag_trace);
 163   surfxml_add_callback(STag_surfxml_trace_connect_cb_list,
 164              &parse_Stag_trace_connect);
 165
 166   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
 167   sg_platf_AS_end_add_cb(routing_AS_end);
 168   sg_platf_AS_begin_add_cb(routing_AS_begin);
 169
 170
 171   /* Do the actual parsing */
 172   parse_status = surf_parse();
 173
 174   /* Free my data */
 175   xbt_dict_free(&trace_connect_list_host_avail);
 176   xbt_dict_free(&trace_connect_list_power);
 177   xbt_dict_free(&trace_connect_list_link_avail);
 178   xbt_dict_free(&trace_connect_list_bandwidth);
 179   xbt_dict_free(&trace_connect_list_latency);
 180   xbt_dict_free(&traces_set_list);
 181   xbt_dict_free(&random_data_list);
 182   xbt_dynar_free(&surfxml_bufferstack_stack);
 183
 184   /* Stop the flex parser */
 185   surf_parse_close();
 186   if (parse_status)
 187     xbt_die("Parse error in %s", file);
 188 }
 189