src/bindings/ruby/rb_application_handler.c

   1 /*
   2  * Copyright 2010. The SimGrid Team. All right 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 "bindings/ruby_bindings.h"
   8 #include "surf/surfxml_parse.h"
   9 #include "msg/private.h" /* s_simdata_process_t */
  10
  11 // XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ruby,bindings,"Ruby Bindings");
  12
  13 // Used to instanciate the Process
  14
  15 static  VALUE args;
  16 static  VALUE prop;
  17 static  VALUE function_name;
  18 static  VALUE host_name;
  19
  20
  21
  22 static VALUE rb_process_instance(VALUE fct_name,VALUE arguments,VALUE properties) {
  23   ruby_init();
  24   ruby_init_loadpath();
  25   char * p_className = RSTRING(fct_name)->ptr; // name of process is the one of the class
  26   return rb_funcall(rb_const_get(rb_cObject, rb_intern(p_className)),rb_intern("new"),3,fct_name,arguments,properties);
  27 }
  28
  29 static void rb_process_create_with_args(VALUE fct_name,VALUE arguments,VALUE properties,VALUE ht_name) {
  30
  31   VALUE ruby_process = rb_process_instance(fct_name,arguments,properties);
  32   m_process_t process; // Native Process to Create
  33   const char * name ; // Name of C Native Processs
  34
  35   if(!fct_name)
  36     rb_raise(rb_eRuntimeError,"Internal error: Process name cannot be NULL");
  37
  38   // Allocate the data for the simulation
  39   process = xbt_new0(s_m_process_t,1);
  40   process->simdata = xbt_new0(s_simdata_process_t,1);
  41   // Do we Really Need to Create Ruby Process Instance , >> process is already a Ruby Process !! So..Keep on ;)
  42   // Bind The Ruby Process instance to The Native Process
  43   rb_process_bind(ruby_process,process);
  44   name = RSTRING(fct_name)->ptr;
  45   process->name = xbt_strdup(name);
  46   // Host
  47   m_host_t host = MSG_get_host_by_name(RSTRING(ht_name)->ptr);
  48   process->simdata->m_host = host;
  49
  50   //Data_Get_Struct(host,s_m_host_t,process->simdata->m_host);
  51
  52   if(!(process->simdata->m_host)) { // Not Binded
  53     free(process->simdata);
  54     free(process->data);
  55     free(process);
  56     rb_raise(rb_eRuntimeError,"Host not bound while creating native process");
  57   }
  58   process->simdata->PID = msg_global->PID++; //  msg_global ??
  59
  60 /*
  61   DEBUG7("fill in process %s/%s (pid=%d) %p (sd=%p , host=%p, host->sd=%p)",
  62       process->name , process->simdata->m_host->name,process->simdata->PID,
  63       process,process->simdata, process->simdata->m_host,
  64       process->simdata->m_host->simdata);
  65 */
  66
  67 printf("fill in process %s/%s (pid=%d) %p (sd=%p , host=%p, host->sd=%p)\n",
  68       process->name , process->simdata->m_host->name,process->simdata->PID,
  69       process,process->simdata, process->simdata->m_host,
  70       process->simdata->m_host->simdata);
  71
  72   /* FIXME: that's mainly for debugging. We could only allocate this if XBT_LOG_ISENABLED(ruby,debug) is true since I guess this leaks */
  73   char **argv=xbt_new(char*,2);
  74   argv[0] = bprintf("%s@%s",process->name,process->simdata->m_host->simdata->smx_host->name);
  75   argv[1] = NULL;
  76   process->simdata->s_process =
  77       SIMIX_process_create(process->name,
  78           (xbt_main_func_t)ruby_process,
  79           (void *) process,
  80           process->simdata->m_host->simdata->smx_host->name,
  81           1,argv,NULL);
  82
  83  // DEBUG1("context created (s_process=%p)",process->simdata->s_process);
  84  printf("context created (s_process=%p)\n",process->simdata->s_process);
  85
  86   if (SIMIX_process_self()) { // SomeOne Created Me !!
  87     process->simdata->PPID = MSG_process_get_PID(SIMIX_process_self()->data);
  88   } else {
  89     process->simdata->PPID = -1;
  90   }
  91   process->simdata->last_errno = MSG_OK;
  92   // let's Add the Process to the list of the Simulation's Processes
  93   xbt_fifo_unshift(msg_global->process_list,process);
  94 }
  95
  96
  97
  98
  99 void rb_application_handler_on_start_document(void) {
 100
 101    args = rb_ary_new();  // Max lenght = 16 ?!
 102    prop = rb_ary_new();
 103 }
 104
 105 void rb_application_handler_on_end_document(void) {
 106   //application_handler_class = Qnil;
 107   args = Qnil;
 108   prop = Qnil;
 109   function_name = Qnil;
 110   host_name = Qnil;
 111
 112 }
 113
 114 void rb_application_handler_on_begin_process(void) {
 115
 116   host_name = rb_str_new2(A_surfxml_process_host);;
 117   function_name = rb_str_new2(A_surfxml_process_function);
 118
 119 }
 120
 121 void rb_application_handler_on_process_arg(void) {
 122
 123   VALUE arg = rb_str_new2(A_surfxml_argument_value);
 124   rb_ary_push(args,arg);
 125 }
 126
 127 void rb_application_handler_on_property(void) {
 128   VALUE id = rb_str_new2(A_surfxml_prop_id);
 129   VALUE val =  rb_str_new2(A_surfxml_prop_value);
 130   int i_id = NUM2INT (id);
 131   rb_ary_store(prop,i_id,val);
 132
 133 }
 134
 135
 136 void rb_application_handler_on_end_process(void) {
 137
 138   rb_process_create_with_args(function_name,args,prop,host_name);
 139
 140 }
 141
 142