src/bindings/ruby/rb_msg_process.c

   1 /*
   2  * $Id$
   3  *
   4  * Copyright 2010 Martin Quinson, Mehdi Fekari
   5  * All right reserved.
   6  *
   7  * This program is free software; you can redistribute
   8  * it and/or modify it under the terms of the license
   9  *(GNU LGPL) which comes with this package.
  10  */
  11
  12 #include "rb_msg_process.h"
  13
  14 #define DEBUG
  15 // Init Ruby
  16 static void initRuby()
  17 {
  18
  19   ruby_init();
  20   ruby_init_loadpath();
  21   rb_require("RubyProcess.rb");
  22
  23 }
  24
  25
  26 /***********************************************
  27
  28 Functions for Ruby Process Management ( Up Call)
  29
  30 Idependant Methods
  31
  32 ************************************************/
  33
  34
  35 // get Ruby Process Name
  36 static VALUE process_getName( VALUE ruby_process )
  37 {
  38
  39    initRuby();
  40   // instance = rb_funcall3(rb_const_get(rb_cObject, rb_intern("RbProcess")),  rb_intern("new"), 0, 0);
  41    return rb_funcall(ruby_process,rb_intern("getName"),0);
  42
  43 }
  44
  45 // Get  Process ID
  46 static VALUE process_getID(VALUE ruby_process)
  47 {
  48
  49   initRuby();
  50   return rb_funcall(ruby_process,rb_intern("getID"),0);
  51
  52 }
  53
  54 // Get Bind
  55 static VALUE process_getBind(VALUE ruby_process)
  56 {
  57
  58   initRuby();
  59   return rb_funcall(ruby_process,rb_intern("getBind"),0);
  60
  61 }
  62
  63
  64 // Set Bind
  65 static void process_setBind(VALUE ruby_process,long bind)
  66 {
  67
  68   initRuby();
  69   VALUE r_bind = LONG2FIX(bind);
  70   rb_funcall(ruby_process,rb_intern("setBind"),1,r_bind);
  71
  72 }
  73
  74 // isAlive
  75 static VALUE process_isAlive(VALUE ruby_process)
  76 {
  77
  78  initRuby();
  79  return rb_funcall(ruby_process,rb_intern("alive?"),0);
  80
  81 }
  82
  83 // Kill Process
  84 static void process_kill(VALUE ruby_process)
  85 {
  86
  87   initRuby();
  88   rb_funcall(ruby_process,rb_intern("kill"),0);
  89
  90 }
  91
  92 // join Process
  93 static void process_join( VALUE ruby_process )
  94 {
  95
  96  initRuby();
  97  rb_funcall(ruby_process,rb_intern("join"),0);
  98
  99 }
 100
 101 // unschedule Process
 102 static void process_unschedule( VALUE ruby_process )
 103 {
 104
 105   initRuby();
 106   rb_funcall(ruby_process,rb_intern("unschedule"),0);
 107
 108 }
 109
 110 // schedule Process
 111 static void process_schedule( VALUE ruby_process )
 112 {
 113
 114  initRuby();
 115  rb_funcall(ruby_process,rb_intern("schedule"),0);
 116
 117 }
 118
 119 /***************************************************
 120
 121 Function for Native Process ( Bound ) Management
 122
 123 Methods Belong to MSG Module
 124
 125 ****************************************************/
 126
 127 // Process To Native
 128
 129 static m_process_t process_to_native(VALUE ruby_process)
 130 {
 131
 132   VALUE id = process_getBind(ruby_process);
 133   if (!id)
 134   {
 135    rb_raise(rb_eRuntimeError,"Process Not Bound >>> id_Bind Null");
 136    return NULL;
 137   }
 138   long l_id= FIX2LONG(id);
 139   return (m_process_t)l_id;
 140
 141 }
 142
 143 // Bind Process
 144
 145 static void processBind(VALUE ruby_process,m_process_t process)
 146 {
 147
 148   long bind = (long)(process);
 149   process_setBind(ruby_process,bind);
 150
 151 }
 152
 153
 154 // processCreate
 155
 156 static void processCreate(VALUE class,VALUE ruby_process,VALUE host)
 157 {
 158
 159  VALUE rbName;      // Name of Java Process instance
 160  m_process_t process; // Native Process to Create
 161  const char * name ; // Name of C Native Process
 162  char alias[MAX_ALIAS_NAME + 1 ] = {0};
 163  msg_mailbox_t mailbox;
 164  rbName = process_getName(ruby_process);
 165
 166  if(!rbName)
 167  {
 168   rb_raise(rb_eRuntimeError,"Internal error : Process Name Cannot be NULL");
 169   return;
 170  }
 171  // Allocate the data for the simulation
 172  process = xbt_new0(s_m_process_t,1);
 173  process->simdata = xbt_new0(s_simdata_process_t,1);
 174  // Do we Really Need to Create Ruby Process Instance , >> process is already a Ruby Process !! So..Keep on ;)
 175  // Bind The Ruby Process instance to The Native Process
 176  processBind(ruby_process,process);
 177  name = RSTRING(rbName)->ptr;
 178  process->name = xbt_strdup(name);
 179  Data_Get_Struct(host,m_host_t,process->simdata->m_host);
 180
 181  if(!(process->simdata->m_host)) // Not Binded
 182  {
 183    free(process->simdata);
 184    free(process->data);
 185    free(process);
 186    rb_raise(rb_eRuntimeError,"Host not bound...while creating native process");
 187    return;
 188  }
 189  process->simdata->PID = msg_global->PID++; //  msg_global ??
 190  /*DEBUG
 191  ("fil in process %s/%s (pid=%d) %p (sd=%p, host=%p, host->sd=%p) ",
 192   process->name ,process->simdata->m_host->name,process->simdata->PID,
 193   process,process->simdata, process->simdata->m_host,
 194   process->simdata->m_host->simdata);*/
 195
 196  #ifdef DEBUG
 197  printf("fill in process %s/%s (pid=%d) %p (sd%=%p , host=%p, host->sd=%p)\n",
 198         process->name , process->simdata->m_host->name,process->simdata->PID,
 199         process,process->simdata, process->simdata->m_host,
 200         process->simdata->m_host->simdata);
 201  #endif
 202   process->simdata->s_process =
 203   SIMIX_process_create(process->name,
 204                        (xbt_main_func_t)ruby_process,
 205                        (void *) process,
 206                        process->simdata->m_host->simdata->smx_host->name,
 207                        0,NULL,NULL);
 208
 209  //DEBUG ( "context created (s_process=%p)",process->simdata->s_process);
 210  #ifdef DEBUG
 211  printf("context created (s_process=%p)\n",process->simdata->s_process);
 212  #endif
 213  if (SIMIX_process_self()) { // SomeOne Created Me !!
 214    process->simdata->PPID = MSG_process_get_PID(SIMIX_process_self()->data);
 215  }
 216  else
 217  {
 218    process->simdata->PPID = -1;
 219  }
 220   process->simdata->last_errno = MSG_OK;
 221   // let's Add the Process to the list of the Simulation's Processes
 222   xbt_fifo_unshift(msg_global->process_list,process);
 223   sprintf(alias,"%s:%s",(process->simdata->m_host->simdata->smx_host)->name,
 224           process->name);
 225
 226   mailbox = MSG_mailbox_new(alias);
 227
 228 }
 229
 230
 231 // Process Management
 232
 233 static void processSuspend(VALUE class,VALUE ruby_process)
 234 {
 235
 236   m_process_t process = process_to_native(ruby_process);
 237
 238   if (!process)
 239   {
 240     rb_raise(rb_eRuntimeError,"Process Not Bound...while suspending process");
 241     return;
 242   }
 243
 244   // Trying to suspend The Process
 245
 246   if ( MSG_OK != MSG_process_suspend(process))
 247       rb_raise(rb_eRuntimeError,"MSG_process_suspend() failed");
 248
 249
 250 }
 251
 252 static void processResume(VALUE class,VALUE ruby_process)
 253 {
 254   m_process_t process = process_to_native(ruby_process);
 255   if (!process)
 256   {
 257     rb_raise(rb_eRuntimeError,"Process not Bound...while resuming process");
 258     return ;
 259   }
 260   // Trying to resume the process
 261   if ( MSG_OK != MSG_process_resume(process))
 262     rb_raise(rb_eRuntimeError,"MSG_process_resume() failed");
 263
 264 }
 265
 266 static VALUE processIsSuspend(VALUE class,VALUE ruby_process)
 267 {
 268
 269   m_process_t process = process_to_native(ruby_process);
 270   if (!process)
 271   {
 272     rb_raise (rb_eRuntimeError,"Process not Bound...while testing if suspended");
 273     return;
 274   }
 275
 276   // 1 is The Process is Suspended , 0 Otherwise
 277   if(MSG_process_is_suspended(process))
 278     return Qtrue;
 279
 280   return Qfalse;
 281
 282 }
 283
 284 static void processKill(VALUE class,VALUE ruby_process)
 285 {
 286  m_process_t process = process_to_native(ruby_process);
 287
 288  if(!process)
 289  {
 290   rb_raise (rb_eRuntimeError,"Process Not Bound...while killing process");
 291   return ;
 292  }
 293   // Delete The Global Reference / Ruby Process
 294   process_kill(ruby_process);
 295   // Delete the Native Process
 296   MSG_process_kill(process);
 297
 298 }
 299
 300 static VALUE processGetHost(VALUE class,VALUE ruby_process)
 301 {
 302
 303   m_process_t process = process_to_native(ruby_process);
 304   m_host_t host;
 305
 306   if (!process)
 307   {
 308   rb_raise(rb_eRuntimeError,"Process Not Bound...while getting Host");
 309   return Qnil; // NULL
 310   }
 311
 312   host = MSG_process_get_host(process);
 313
 314   if(!host->data)
 315   {
 316    rb_raise (rb_eRuntimeError,"MSG_process_get_host() failed");
 317    return Qnil;
 318   }
 319
 320    return Data_Wrap_Struct(class, 0, host_free, host);
 321
 322 }
 323
 324 static void processExit(VALUE class,VALUE ruby_process)
 325 {
 326
 327   m_process_t process = process_to_native(ruby_process);
 328   if(!process)
 329   {
 330    rb_raise(rb_eRuntimeError,"Process Not Bound...while exiting process");
 331    return;
 332   }
 333   SIMIX_context_stop(SIMIX_process_self()->context);
 334
 335 }