src/surf/xml/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 "src/surf/cpu_interface.hpp"
  12 #include "src/surf/network_interface.hpp"
  13 #include "src/instr/instr_private.h" // TRACE_start(). FIXME: remove by subscribing tracing to the surf signals
  14
  15 #include "src/surf/xml/platf.hpp"
  16
  17 #if HAVE_LUA
  18 extern "C" {
  19 #include "src/bindings/lua/simgrid_lua.h"
  20
  21 #include <lua.h>                /* Always include this when calling Lua */
  22 #include <lauxlib.h>            /* Always include this when calling Lua */
  23 #include <lualib.h>             /* Prototype for luaL_openlibs(), */
  24 }
  25 #endif
  26
  27 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  28
  29 /*
  30  *  Allow the cluster tag to mess with the parsing buffer.
  31  * (this will probably become obsolete once the cluster tag do not mess with the parsing callbacks directly)
  32  */
  33
  34 /* This buffer is used to store the original buffer before substituting it by out own buffer. Useful for the cluster tag */
  35 static xbt_dynar_t surfxml_bufferstack_stack = NULL;
  36 int surfxml_bufferstack_size = 2048;
  37
  38 static char *old_buff = NULL;
  39
  40 XBT_IMPORT_NO_EXPORT(unsigned int) surfxml_buffer_stack_stack_ptr;
  41 XBT_IMPORT_NO_EXPORT(unsigned int) surfxml_buffer_stack_stack[1024];
  42
  43 void surfxml_bufferstack_push(int new_one)
  44 {
  45   if (!new_one)
  46     old_buff = surfxml_bufferstack;
  47   else {
  48     xbt_dynar_push(surfxml_bufferstack_stack, &surfxml_bufferstack);
  49     surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
  50   }
  51 }
  52
  53 void surfxml_bufferstack_pop(int new_one)
  54 {
  55   if (!new_one)
  56     surfxml_bufferstack = old_buff;
  57   else {
  58     free(surfxml_bufferstack);
  59     xbt_dynar_pop(surfxml_bufferstack_stack, &surfxml_bufferstack);
  60   }
  61 }
  62
  63 /*
  64  * Trace related stuff
  65  */
  66
  67 xbt_dict_t traces_set_list = NULL;
  68 XBT_PRIVATE xbt_dict_t trace_connect_list_host_avail = NULL;
  69 XBT_PRIVATE xbt_dict_t trace_connect_list_host_speed = NULL;
  70 XBT_PRIVATE xbt_dict_t trace_connect_list_link_avail = NULL;
  71 XBT_PRIVATE xbt_dict_t trace_connect_list_link_bw = NULL;
  72 XBT_PRIVATE xbt_dict_t trace_connect_list_link_lat = NULL;
  73
  74 void sg_platf_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
  75 {
  76   xbt_assert(xbt_dict_get_or_null(traces_set_list, trace_connect->trace),
  77               "Cannot connect trace %s to %s: trace unknown",
  78               trace_connect->trace,
  79               trace_connect->element);
  80
  81   switch (trace_connect->kind) {
  82   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
  83     xbt_dict_set(trace_connect_list_host_avail,
  84         trace_connect->trace,
  85         xbt_strdup(trace_connect->element), NULL);
  86     break;
  87   case SURF_TRACE_CONNECT_KIND_SPEED:
  88     xbt_dict_set(trace_connect_list_host_speed, trace_connect->trace,
  89         xbt_strdup(trace_connect->element), NULL);
  90     break;
  91   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
  92     xbt_dict_set(trace_connect_list_link_avail,
  93         trace_connect->trace,
  94         xbt_strdup(trace_connect->element), NULL);
  95     break;
  96   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
  97     xbt_dict_set(trace_connect_list_link_bw,
  98         trace_connect->trace,
  99         xbt_strdup(trace_connect->element), NULL);
 100     break;
 101   case SURF_TRACE_CONNECT_KIND_LATENCY:
 102     xbt_dict_set(trace_connect_list_link_lat, trace_connect->trace,
 103         xbt_strdup(trace_connect->element), NULL);
 104     break;
 105   default:
 106   surf_parse_error("Cannot connect trace %s to %s: kind of trace unknown",
 107         trace_connect->trace, trace_connect->element);
 108     break;
 109   }
 110 }
 111
 112
 113 /* ***************************************** */
 114
 115 static int after_config_done;
 116 void parse_after_config() {
 117   if (!after_config_done) {
 118     TRACE_start();
 119
 120     /* Register classical callbacks */
 121     storage_register_callbacks();
 122     routing_register_callbacks();
 123
 124     after_config_done = 1;
 125   }
 126 }
 127
 128 /* This function acts as a main in the parsing area. */
 129 void parse_platform_file(const char *file)
 130 {
 131 #if HAVE_LUA
 132   int is_lua = (file != NULL && strlen(file) > 3 && file[strlen(file)-3] == 'l' && file[strlen(file)-2] == 'u'
 133         && file[strlen(file)-1] == 'a');
 134 #endif
 135
 136   sg_platf_init();
 137
 138 #if HAVE_LUA
 139   /* Check if file extension is "lua". If so, we will use
 140    * the lua bindings to parse the platform file (since it is
 141    * written in lua). If not, we will use the (old?) XML parser
 142    */
 143   if (is_lua) {
 144     lua_State* L = luaL_newstate();
 145     luaL_openlibs(L);
 146
 147     luaL_loadfile(L, file); // This loads the file without executing it.
 148
 149     /* Run the script */
 150     if (lua_pcall(L, 0, 0, 0)) {
 151         XBT_ERROR("FATAL ERROR:\n  %s: %s\n\n", "Lua call failed. Errormessage:", lua_tostring(L, -1));
 152         xbt_die("Lua call failed. See Log");
 153     }
 154   }
 155   else
 156 #endif
 157   { // Use XML parser
 158
 159     int parse_status;
 160
 161     /* init the flex parser */
 162     surfxml_buffer_stack_stack_ptr = 1;
 163     surfxml_buffer_stack_stack[0] = 0;
 164     after_config_done = 0;
 165     surf_parse_open(file);
 166
 167     traces_set_list = xbt_dict_new_homogeneous(NULL);
 168     trace_connect_list_host_avail = xbt_dict_new_homogeneous(free);
 169     trace_connect_list_host_speed = xbt_dict_new_homogeneous(free);
 170     trace_connect_list_link_avail = xbt_dict_new_homogeneous(free);
 171     trace_connect_list_link_bw = xbt_dict_new_homogeneous(free);
 172     trace_connect_list_link_lat = xbt_dict_new_homogeneous(free);
 173
 174     /* Init my data */
 175     if (!surfxml_bufferstack_stack)
 176       surfxml_bufferstack_stack = xbt_dynar_new(sizeof(char *), NULL);
 177
 178     /* Do the actual parsing */
 179     parse_status = surf_parse();
 180
 181     /* connect all traces relative to hosts */
 182     xbt_dict_cursor_t cursor = NULL;
 183     char *trace_name, *elm;
 184
 185     xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
 186       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 187       xbt_assert(trace, "Trace %s undefined", trace_name);
 188
 189       simgrid::s4u::Host *host = sg_host_by_name(elm);
 190       xbt_assert(host, "Host %s undefined", elm);
 191       simgrid::surf::Cpu *cpu = host->pimpl_cpu;
 192
 193       cpu->setStateTrace(trace);
 194     }
 195     xbt_dict_foreach(trace_connect_list_host_speed, cursor, trace_name, elm) {
 196       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 197       xbt_assert(trace, "Trace %s undefined", trace_name);
 198
 199       simgrid::s4u::Host *host = sg_host_by_name(elm);
 200       xbt_assert(host, "Host %s undefined", elm);
 201       simgrid::surf::Cpu *cpu = host->pimpl_cpu;
 202
 203       cpu->setSpeedTrace(trace);
 204     }
 205     xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
 206       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 207       xbt_assert(trace, "Trace %s undefined", trace_name);
 208       Link *link = Link::byName(elm);
 209       xbt_assert(link, "Link %s undefined", elm);
 210       link->setStateTrace(trace);
 211     }
 212
 213     xbt_dict_foreach(trace_connect_list_link_bw, cursor, trace_name, elm) {
 214       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 215       xbt_assert(trace, "Trace %s undefined", trace_name);
 216       Link *link = Link::byName(elm);
 217       xbt_assert(link, "Link %s undefined", elm);
 218       link->setBandwidthTrace(trace);
 219     }
 220
 221     xbt_dict_foreach(trace_connect_list_link_lat, cursor, trace_name, elm) {
 222       tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
 223       xbt_assert(trace, "Trace %s undefined", trace_name);
 224       Link *link = Link::byName(elm);
 225       xbt_assert(link, "Link %s undefined", elm);
 226       link->setLatencyTrace(trace);
 227     }
 228
 229     /* Free my data */
 230     xbt_dict_free(&trace_connect_list_host_avail);
 231     xbt_dict_free(&trace_connect_list_host_speed);
 232     xbt_dict_free(&trace_connect_list_link_avail);
 233     xbt_dict_free(&trace_connect_list_link_bw);
 234     xbt_dict_free(&trace_connect_list_link_lat);
 235     xbt_dict_free(&traces_set_list);
 236     xbt_dynar_free(&surfxml_bufferstack_stack);
 237
 238     surf_parse_close();
 239
 240     if (parse_status)
 241       surf_parse_error("Parse error in %s", file);
 242
 243   }
 244
 245
 246 }