src/surf/surfxml_parseplatf.cpp

   1 /* Copyright (c) 2006-2015. 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 "src/surf/cpu_interface.hpp"
  13 #include "src/surf/network_interface.hpp"
  14 #include "src/surf/surfxml_private.h"
  15
  16 #ifdef HAVE_LUA
  17 extern "C" {
  18 #include "src/bindings/lua/simgrid_lua.h"
  19
  20 #include <lua.h>                /* Always include this when calling Lua */
  21 #include <lauxlib.h>            /* Always include this when calling Lua */
  22 #include <lualib.h>             /* Prototype for luaL_openlibs(), */
  23 }
  24 #endif
  25
  26 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  27
  28 /*
  29  *  Allow the cluster tag to mess with the parsing buffer.
  30  * (this will probably become obsolete once the cluster tag do not mess with the parsing callbacks directly)
  31  */
  32
  33 /* This buffer is used to store the original buffer before substituting it by out own buffer. Useful for the cluster tag */
  34 static xbt_dynar_t surfxml_bufferstack_stack = NULL;
  35 int surfxml_bufferstack_size = 2048;
  36
  37 static char *old_buff = NULL;
  38
  39 XBT_IMPORT_NO_EXPORT(unsigned int) surfxml_buffer_stack_stack_ptr;
  40 XBT_IMPORT_NO_EXPORT(unsigned int) surfxml_buffer_stack_stack[1024];
  41
  42 void surfxml_bufferstack_push(int new_one)
  43 {
  44   if (!new_one)
  45     old_buff = surfxml_bufferstack;
  46   else {
  47     xbt_dynar_push(surfxml_bufferstack_stack, &surfxml_bufferstack);
  48     surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
  49   }
  50 }
  51
  52 void surfxml_bufferstack_pop(int new_one)
  53 {
  54   if (!new_one)
  55     surfxml_bufferstack = old_buff;
  56   else {
  57     free(surfxml_bufferstack);
  58     xbt_dynar_pop(surfxml_bufferstack_stack, &surfxml_bufferstack);
  59   }
  60 }
  61
  62 /*
  63  * Trace related stuff
  64  */
  65
  66 xbt_dict_t traces_set_list = NULL;
  67 XBT_PRIVATE xbt_dict_t trace_connect_list_host_avail = NULL;
  68 XBT_PRIVATE xbt_dict_t trace_connect_list_host_speed = NULL;
  69 XBT_PRIVATE xbt_dict_t trace_connect_list_link_avail = NULL;
  70 XBT_PRIVATE xbt_dict_t trace_connect_list_link_bw = NULL;
  71 XBT_PRIVATE xbt_dict_t trace_connect_list_link_lat = NULL;
  72
  73 void sg_platf_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
  74 {
  75   xbt_assert(xbt_dict_get_or_null(traces_set_list, trace_connect->trace),
  76               "Cannot connect trace %s to %s: trace unknown",
  77               trace_connect->trace,
  78               trace_connect->element);
  79
  80   switch (trace_connect->kind) {
  81   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
  82     xbt_dict_set(trace_connect_list_host_avail,
  83         trace_connect->trace,
  84         xbt_strdup(trace_connect->element), NULL);
  85     break;
  86   case SURF_TRACE_CONNECT_KIND_SPEED:
  87     xbt_dict_set(trace_connect_list_host_speed, trace_connect->trace,
  88         xbt_strdup(trace_connect->element), NULL);
  89     break;
  90   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
  91     xbt_dict_set(trace_connect_list_link_avail,
  92         trace_connect->trace,
  93         xbt_strdup(trace_connect->element), NULL);
  94     break;
  95   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
  96     xbt_dict_set(trace_connect_list_link_bw,
  97         trace_connect->trace,
  98         xbt_strdup(trace_connect->element), NULL);
  99     break;
 100   case SURF_TRACE_CONNECT_KIND_LATENCY:
 101     xbt_dict_set(trace_connect_list_link_lat, trace_connect->trace,
 102         xbt_strdup(trace_connect->element), NULL);
 103     break;
 104   default:
 105   surf_parse_error("Cannot connect trace %s to %s: kind of trace unknown",
 106         trace_connect->trace, trace_connect->element);
 107     break;
 108   }
 109 }
 110
 111
 112 /* ***************************************** */
 113
 114 static int after_config_done;
 115 void parse_after_config() {
 116   if (!after_config_done) {
 117     TRACE_start();
 118
 119     /* Register classical callbacks */
 120     storage_register_callbacks();
 121     routing_register_callbacks();
 122
 123     after_config_done = 1;
 124   }
 125 }
 126
 127 /* This function acts as a main in the parsing area. */
 128 void parse_platform_file(const char *file)
 129 {
 130 #ifdef HAVE_LUA
 131   int is_lua = (file != NULL && strlen(file) > 3 && file[strlen(file)-3] == 'l' && file[strlen(file)-2] == 'u'
 132         && file[strlen(file)-1] == 'a');
 133 #endif
 134
 135   surf_parse_init_callbacks();
 136
 137 #ifdef HAVE_LUA
 138   /* Check if file extension is "lua". If so, we will use
 139    * the lua bindings to parse the platform file (since it is
 140    * written in lua). If not, we will use the (old?) XML parser
 141    */
 142   if (is_lua) {
 143     lua_State* L = luaL_newstate();
 144     luaL_openlibs(L);
 145
 146     luaL_loadfile(L, file); // This loads the file without executing it.
 147
 148     /* Run the script */
 149     if (lua_pcall(L, 0, 0, 0)) {
 150         XBT_ERROR("FATAL ERROR:\n  %s: %s\n\n", "Lua call failed. Errormessage:", lua_tostring(L, -1));
 151         xbt_die("Lua call failed. See Log");
 152     }
 153   }
 154   else
 155 #endif
 156   { // Use XML parser
 157
 158     int parse_status;
 159
 160     /* init the flex parser */
 161     surfxml_buffer_stack_stack_ptr = 1;
 162     surfxml_buffer_stack_stack[0] = 0;
 163     after_config_done = 0;
 164     surf_parse_open(file);
 165
 166     traces_set_list = xbt_dict_new_homogeneous(NULL);
 167     trace_connect_list_host_avail = xbt_dict_new_homogeneous(free);
 168     trace_connect_list_host_speed = xbt_dict_new_homogeneous(free);
 169     trace_connect_list_link_avail = xbt_dict_new_homogeneous(free);
 170     trace_connect_list_link_bw = xbt_dict_new_homogeneous(free);
 171     trace_connect_list_link_lat = xbt_dict_new_homogeneous(free);
 172
 173     /* Init my data */
 174     if (!surfxml_bufferstack_stack)
 175       surfxml_bufferstack_stack = xbt_dynar_new(sizeof(char *), NULL);
 176
 177     /* Do the actual parsing */
 178     parse_status = surf_parse();
 179
 180     /* connect all traces relative to hosts */
 181     xbt_dict_cursor_t cursor = NULL;
 182     char *trace_name, *elm;
 183
 184     xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 185       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 186       xbt_assert(trace, "Trace %s undefined", trace_name);
 187
 188       simgrid::s4u::Host *host = sg_host_by_name(elm);
 189       xbt_assert(host, "Host %s undefined", elm);
 190       simgrid::surf::Cpu *cpu = host->pimpl_cpu;
 191
 192       cpu->set_state_trace(trace);
 193     }
 194     xbt_dict_foreach(trace_connect_list_host_speed, cursor, trace_name, elm) {
 195       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 196       xbt_assert(trace, "Trace %s undefined", trace_name);
 197
 198       simgrid::s4u::Host *host = sg_host_by_name(elm);
 199       xbt_assert(host, "Host %s undefined", elm);
 200       simgrid::surf::Cpu *cpu = host->pimpl_cpu;
 201
 202       cpu->set_speed_trace(trace);
 203     }
 204     xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
 205       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 206       xbt_assert(trace, "Trace %s undefined", trace_name);
 207       Link *link = Link::byName(elm);
 208       xbt_assert(link, "Link %s undefined", elm);
 209       link->set_state_trace(trace);
 210     }
 211
 212     xbt_dict_foreach(trace_connect_list_link_bw, cursor, trace_name, elm) {
 213       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 214       xbt_assert(trace, "Trace %s undefined", trace_name);
 215       Link *link = Link::byName(elm);
 216       xbt_assert(link, "Link %s undefined", elm);
 217       link->set_bandwidth_trace(trace);
 218     }
 219
 220     xbt_dict_foreach(trace_connect_list_link_lat, cursor, trace_name, elm) {
 221       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 222       xbt_assert(trace, "Trace %s undefined", trace_name);
 223       Link *link = Link::byName(elm);
 224       xbt_assert(link, "Link %s undefined", elm);
 225       link->set_latency_trace(trace);
 226     }
 227
 228     /* Free my data */
 229     xbt_dict_free(&trace_connect_list_host_avail);
 230     xbt_dict_free(&trace_connect_list_host_speed);
 231     xbt_dict_free(&trace_connect_list_link_avail);
 232     xbt_dict_free(&trace_connect_list_link_bw);
 233     xbt_dict_free(&trace_connect_list_link_lat);
 234     xbt_dict_free(&traces_set_list);
 235     xbt_dynar_free(&surfxml_bufferstack_stack);
 236
 237     surf_parse_close();
 238
 239     if (parse_status)
 240       surf_parse_error("Parse error in %s", file);
 241
 242   }
 243
 244
 245 }