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
  17 static void initRuby()
  18 {
  19
  20   ruby_init();
  21   ruby_init_loadpath();
  22   rb_require("RubyProcess.rb");
  23
  24 }
  25
  26
  27 /***********************************************
  28
  29 Functions for Ruby Process Management ( Up Call)
  30
  31 Idependant Methods
  32
  33 ************************************************/
  34
  35
  36 // get Ruby Process Name
  37 static VALUE process_getName( VALUE ruby_process )
  38 {
  39
  40    initRuby();
  41   // instance = rb_funcall3(rb_const_get(rb_cObject, rb_intern("RbProcess")),  rb_intern("new"), 0, 0);
  42    return rb_funcall(ruby_process,rb_intern("getName"),0);
  43
  44 }
  45
  46 // Get  Process ID
  47 static VALUE process_getID(VALUE ruby_process)
  48 {
  49
  50   initRuby();
  51   return rb_funcall(ruby_process,rb_intern("getID"),0);
  52
  53 }
  54
  55 // Get Bind
  56 static VALUE process_getBind(VALUE ruby_process)
  57 {
  58
  59   initRuby();
  60   return rb_funcall(ruby_process,rb_intern("getBind"),0);
  61
  62 }
  63
  64
  65 // Set Bind
  66 static void process_setBind(VALUE ruby_process,long bind)
  67 {
  68
  69   initRuby();
  70   VALUE r_bind = LONG2FIX(bind);
  71   rb_funcall(ruby_process,rb_intern("setBind"),1,r_bind);
  72
  73 }
  74
  75 // isAlive
  76 static VALUE process_isAlive(VALUE ruby_process)
  77 {
  78
  79  initRuby();
  80  return rb_funcall(ruby_process,rb_intern("alive?"),0);
  81
  82 }
  83
  84 // Kill Process
  85
  86 static void process_kill(VALUE ruby_process)
  87 {
  88
  89   initRuby();
  90   rb_funcall(ruby_process,rb_intern("kill"),0);
  91
  92 }
  93
  94 // join Process
  95
  96 static void process_join( VALUE ruby_process )
  97 {
  98
  99  initRuby();
 100  rb_funcall(ruby_process,rb_intern("join"),0);
 101
 102 }
 103
 104 // unschedule Process
 105
 106 static void process_unschedule( VALUE ruby_process )
 107 {
 108
 109   initRuby();
 110   rb_funcall(ruby_process,rb_intern("unschedule"),0);
 111
 112 }
 113
 114 // schedule Process
 115
 116 static void process_schedule( VALUE ruby_process )
 117 {
 118
 119  initRuby();
 120  rb_funcall(ruby_process,rb_intern("schedule"),0);
 121
 122 }
 123
 124 /***************************************************
 125
 126 Function for Native Process ( Bound ) Management
 127
 128 Methods Belong to MSG Module
 129
 130 ****************************************************/
 131
 132 // Process To Native
 133
 134 static m_process_t process_to_native(VALUE ruby_process)
 135 {
 136
 137   VALUE id = process_getBind(ruby_process);
 138   if (!id)
 139   {
 140    rb_raise(rb_eRuntimeError,"Process Not Bound >>> id_Bind Null");
 141    return NULL;
 142   }
 143   long l_id= FIX2LONG(id);
 144   return (m_process_t)l_id;
 145
 146 }
 147
 148 // Bind Process
 149
 150 static void processBind(VALUE ruby_process,m_process_t process)
 151 {
 152
 153   long bind = (long)(process);
 154   process_setBind(ruby_process,bind);
 155
 156 }
 157
 158
 159 // processCreate
 160
 161 static void processCreate(VALUE class,VALUE ruby_process,VALUE host)
 162 {
 163
 164  VALUE rbName;      // Name of Java Process instance
 165  m_process_t process; // Native Process to Create
 166  const char * name ; // Name of C Native Process
 167  char alias[MAX_ALIAS_NAME + 1 ] = {0};
 168  msg_mailbox_t mailbox;
 169  rbName = process_getName(ruby_process);
 170
 171  if(!rbName)
 172  {
 173   rb_raise(rb_eRuntimeError,"Internal error : Process Name Cannot be NULL");
 174   return;
 175  }
 176  // Allocate the data for the simulation
 177  process = xbt_new0(s_m_process_t,1);
 178  process->simdata = xbt_new0(s_simdata_process_t,1);
 179  // Do we Really Need to Create Ruby Process Instance , >> process is already a Ruby Process !! So..Keep on ;)
 180  // Bind The Ruby Process instance to The Native Process
 181  processBind(ruby_process,process);
 182  name = RSTRING(rbName)->ptr;
 183  process->name = xbt_strdup(name);
 184  Data_Get_Struct(host,m_host_t,process->simdata->m_host);
 185
 186  if(!(process->simdata->m_host)) // Not Binded
 187  {
 188    free(process->simdata);
 189    free(process->data);
 190    free(process);
 191    rb_raise(rb_eRuntimeError,"Host not bound...while creating native process");
 192    return;
 193  }
 194  process->simdata->PID = msg_global->PID++; //  msg_global ??
 195  /*DEBUG
 196  ("fil in process %s/%s (pid=%d) %p (sd=%p, host=%p, host->sd=%p) ",
 197   process->name ,process->simdata->m_host->name,process->simdata->PID,
 198   process,process->simdata, process->simdata->m_host,
 199   process->simdata->m_host->simdata);*/
 200
 201  #ifdef DEBUG
 202  printf("fill in process %s/%s (pid=%d) %p (sd%=%p , host=%p, host->sd=%p)\n",
 203         process->name , process->simdata->m_host->name,process->simdata->PID,
 204         process,process->simdata, process->simdata->m_host,
 205         process->simdata->m_host->simdata);
 206  #endif
 207   process->simdata->s_process =
 208   SIMIX_process_create(process->name,
 209                        (xbt_main_func_t)ruby_process,
 210                        (void *) process,
 211                        process->simdata->m_host->simdata->smx_host->name,
 212                        0,NULL,NULL);
 213
 214  //DEBUG ( "context created (s_process=%p)",process->simdata->s_process);
 215  #ifdef DEBUG
 216  printf("context created (s_process=%p)\n",process->simdata->s_process);
 217  #endif
 218  if (SIMIX_process_self()) { // SomeOne Created Me !!
 219    process->simdata->PPID = MSG_process_get_PID(SIMIX_process_self()->data);
 220  }
 221  else
 222  {
 223    process->simdata->PPID = -1;
 224  }
 225   process->simdata->last_errno = MSG_OK;
 226   // let's Add the Process to the list of the Simulation's Processes
 227   xbt_fifo_unshift(msg_global->process_list,process);
 228   sprintf(alias,"%s:%s",(process->simdata->m_host->simdata->smx_host)->name,
 229           process->name);
 230
 231   mailbox = MSG_mailbox_new(alias);
 232
 233 }
 234
 235
 236 // Process Management
 237
 238 static void processSuspend(VALUE class,VALUE ruby_process)
 239 {
 240
 241   m_process_t process = process_to_native(ruby_process);
 242
 243   if (!process)
 244   {
 245     rb_raise(rb_eRuntimeError,"Process Not Bound...while suspending process");
 246     return;
 247   }
 248
 249   // Trying to suspend The Process
 250
 251   if ( MSG_OK != MSG_process_suspend(process))
 252       rb_raise(rb_eRuntimeError,"MSG_process_suspend() failed");
 253
 254
 255 }
 256
 257 static void processResume(VALUE class,VALUE ruby_process)
 258 {
 259   m_process_t process = process_to_native(ruby_process);
 260   if (!process)
 261   {
 262     rb_raise(rb_eRuntimeError,"Process not Bound...while resuming process");
 263     return ;
 264   }
 265   // Trying to resume the process
 266   if ( MSG_OK != MSG_process_resume(process))
 267     rb_raise(rb_eRuntimeError,"MSG_process_resume() failed");
 268
 269 }
 270
 271 static VALUE processIsSuspend(VALUE class,VALUE ruby_process)
 272 {
 273
 274   m_process_t process = process_to_native(ruby_process);
 275   if (!process)
 276   {
 277     rb_raise (rb_eRuntimeError,"Process not Bound...while testing if suspended");
 278     return;
 279   }
 280
 281   // 1 is The Process is Suspended , 0 Otherwise
 282   if(MSG_process_is_suspended(process))
 283     return Qtrue;
 284
 285   return Qfalse;
 286
 287 }
 288
 289 static void processKill(VALUE class,VALUE ruby_process)
 290 {
 291  m_process_t process = process_to_native(ruby_process);
 292
 293  if(!process)
 294  {
 295   rb_raise (rb_eRuntimeError,"Process Not Bound...while killing process");
 296   return ;
 297  }
 298   // Delete The Global Reference / Ruby Process
 299   process_kill(ruby_process);
 300   // Delete the Native Process
 301   MSG_process_kill(process);
 302
 303 }
 304
 305 static VALUE processGetHost(VALUE class,VALUE ruby_process)
 306 {
 307
 308   m_process_t process = process_to_native(ruby_process);
 309   m_host_t host;
 310
 311   if (!process)
 312   {
 313   rb_raise(rb_eRuntimeError,"Process Not Bound...while getting Host");
 314   return Qnil; // NULL
 315   }
 316
 317   host = MSG_process_get_host(process);
 318
 319   if(!host->data)
 320   {
 321    rb_raise (rb_eRuntimeError,"MSG_process_get_host() failed");
 322    return Qnil;
 323   }
 324
 325    return Data_Wrap_Struct(class, 0, host_free, host);
 326
 327 }
 328
 329 static void processExit(VALUE class,VALUE ruby_process)
 330 {
 331
 332   m_process_t process = process_to_native(ruby_process);
 333   if(!process)
 334   {
 335    rb_raise(rb_eRuntimeError,"Process Not Bound...while exiting process");
 336    return;
 337   }
 338   SIMIX_context_stop(SIMIX_process_self()->context);
 339
 340 }