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  * Pass arguments to parsing callback as structures to save some time (and allow callbacks to ignore some)
  54  */
  55
  56 surf_parsing_cluster_arg_t struct_cluster = NULL;
  57
  58 /*
  59  * Trace related stuff
  60  */
  61
  62 xbt_dict_t traces_set_list = NULL;
  63 xbt_dict_t trace_connect_list_host_avail = NULL;
  64 xbt_dict_t trace_connect_list_power = NULL;
  65 xbt_dict_t trace_connect_list_link_avail = NULL;
  66 xbt_dict_t trace_connect_list_bandwidth = NULL;
  67 xbt_dict_t trace_connect_list_latency = NULL;
  68
  69 static double trace_periodicity = -1.0;
  70 static char *trace_file = NULL;
  71 static char *trace_id = NULL;
  72
  73 static void parse_Stag_trace(void)
  74 {
  75   trace_id = xbt_strdup(A_surfxml_trace_id);
  76   trace_file = xbt_strdup(A_surfxml_trace_file);
  77   trace_periodicity = surf_parse_get_double(A_surfxml_trace_periodicity);
  78 }
  79
  80 static void parse_Etag_trace(void)
  81 {
  82   tmgr_trace_t trace;
  83   if (!trace_file || strcmp(trace_file, "") != 0) {
  84     trace = tmgr_trace_new(trace_file);
  85   } else {
  86     if (strcmp(surfxml_pcdata, "") == 0)
  87       trace = NULL;
  88     else
  89       trace =
  90           tmgr_trace_new_from_string(trace_id, surfxml_pcdata,
  91                                      trace_periodicity);
  92   }
  93   xbt_dict_set(traces_set_list, trace_id, (void *) trace, NULL);
  94   xbt_free(trace_file);
  95   trace_file = NULL;
  96   xbt_free(trace_id);
  97   trace_id = NULL;
  98 }
  99
 100 static void parse_Stag_trace_connect(void)
 101 {
 102   xbt_assert(xbt_dict_get_or_null
 103               (traces_set_list, A_surfxml_trace_connect_trace),
 104               "Cannot connect trace %s to %s: trace unknown",
 105               A_surfxml_trace_connect_trace,
 106               A_surfxml_trace_connect_element);
 107
 108   switch (A_surfxml_trace_connect_kind) {
 109   case A_surfxml_trace_connect_kind_HOST_AVAIL:
 110     xbt_dict_set(trace_connect_list_host_avail,
 111                  A_surfxml_trace_connect_trace,
 112                  xbt_strdup(A_surfxml_trace_connect_element), free);
 113     break;
 114   case A_surfxml_trace_connect_kind_POWER:
 115     xbt_dict_set(trace_connect_list_power, A_surfxml_trace_connect_trace,
 116                  xbt_strdup(A_surfxml_trace_connect_element), free);
 117     break;
 118   case A_surfxml_trace_connect_kind_LINK_AVAIL:
 119     xbt_dict_set(trace_connect_list_link_avail,
 120                  A_surfxml_trace_connect_trace,
 121                  xbt_strdup(A_surfxml_trace_connect_element), free);
 122     break;
 123   case A_surfxml_trace_connect_kind_BANDWIDTH:
 124     xbt_dict_set(trace_connect_list_bandwidth,
 125                  A_surfxml_trace_connect_trace,
 126                  xbt_strdup(A_surfxml_trace_connect_element), free);
 127     break;
 128   case A_surfxml_trace_connect_kind_LATENCY:
 129     xbt_dict_set(trace_connect_list_latency, A_surfxml_trace_connect_trace,
 130                  xbt_strdup(A_surfxml_trace_connect_element), free);
 131     break;
 132   default:
 133     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
 134             A_surfxml_trace_connect_trace, A_surfxml_trace_connect_element);
 135     break;
 136   }
 137 }
 138
 139 /* This function acts as a main in the parsing area. */
 140 void parse_platform_file(const char *file)
 141 {
 142   int parse_status;
 143
 144   surf_parse_reset_callbacks();
 145
 146   /* Register classical callbacks */
 147   surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties_XML);
 148   routing_register_callbacks();
 149
 150   /* init the flex parser */
 151   surfxml_buffer_stack_stack_ptr = 1;
 152   surfxml_buffer_stack_stack[0] = 0;
 153
 154   surf_parse_open(file);
 155
 156   /* Init my data */
 157   if (!surfxml_bufferstack_stack)
 158     surfxml_bufferstack_stack = xbt_dynar_new(sizeof(char *), NULL);
 159
 160   traces_set_list = xbt_dict_new();
 161   trace_connect_list_host_avail = xbt_dict_new();
 162   trace_connect_list_power = xbt_dict_new();
 163   trace_connect_list_link_avail = xbt_dict_new();
 164   trace_connect_list_bandwidth = xbt_dict_new();
 165   trace_connect_list_latency = xbt_dict_new();
 166
 167   surfxml_add_callback(STag_surfxml_trace_cb_list, &parse_Stag_trace);
 168   surfxml_add_callback(ETag_surfxml_trace_cb_list, &parse_Etag_trace);
 169   surfxml_add_callback(STag_surfxml_trace_connect_cb_list,
 170              &parse_Stag_trace_connect);
 171
 172   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
 173   sg_platf_AS_end_add_cb(routing_AS_end);
 174   sg_platf_AS_begin_add_cb(routing_AS_begin);
 175
 176
 177   /* Do the actual parsing */
 178   parse_status = surf_parse();
 179
 180   /* Free my data */
 181   xbt_dict_free(&trace_connect_list_host_avail);
 182   xbt_dict_free(&trace_connect_list_power);
 183   xbt_dict_free(&trace_connect_list_link_avail);
 184   xbt_dict_free(&trace_connect_list_bandwidth);
 185   xbt_dict_free(&trace_connect_list_latency);
 186   xbt_dict_free(&traces_set_list);
 187   xbt_dict_free(&random_data_list);
 188   xbt_dynar_free(&surfxml_bufferstack_stack);
 189
 190   /* Stop the flex parser */
 191   surf_parse_close();
 192   if (parse_status)
 193     xbt_die("Parse error in %s", file);
 194 }
 195