src/gras/Virtu/sg_process.c

   1 /* $Id$ */
   2
   3 /* process_sg - GRAS process handling on simulator                          */
   4
   5 /* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved.            */
   6
   7 /* This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the license (GNU LGPL) which comes with this package. */
   9
  10 #include "xbt/ex.h"
  11 #include "xbt/dict.h"
  12 #include "gras_modinter.h" /* module initialization interface */
  13 #include "gras/Virtu/virtu_sg.h"
  14 #include "gras/Msg/msg_interface.h" /* For some checks at simulation end */
  15 #include "gras/Transport/transport_interface.h" /* For some checks at simulation end */
  16
  17 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(gras_virtu_process);
  18
  19 static long int PID = 1;
  20
  21
  22 void gras_agent_spawn(const char *name, void *data,
  23                       xbt_main_func_t code, int argc, char *argv[], xbt_dict_t properties) {
  24
  25    SIMIX_process_create(name, code,
  26                         data,
  27                         gras_os_myname(),
  28                         argc, argv, properties);
  29 }
  30
  31 /* **************************************************************************
  32  * Process constructor/destructor (semi-public interface)
  33  * **************************************************************************/
  34
  35 void
  36 gras_process_init() {
  37   gras_hostdata_t *hd=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  38   gras_procdata_t *pd=xbt_new0(gras_procdata_t,1);
  39   gras_trp_procdata_t trp_pd;
  40
  41   SIMIX_process_set_data(SIMIX_process_self(),(void*)pd);
  42
  43
  44   gras_procdata_init();
  45
  46   if (!hd) {
  47     /* First process on this host */
  48     hd=xbt_new(gras_hostdata_t,1);
  49     hd->refcount = 1;
  50     hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t),NULL);
  51                 SIMIX_host_set_data(SIMIX_host_self(),(void*)hd);
  52   } else {
  53     hd->refcount++;
  54   }
  55
  56   trp_pd = (gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  57   pd->pid = PID++;
  58
  59   if (SIMIX_process_self() != NULL ) {
  60     pd->ppid = gras_os_getpid();
  61   }
  62   else pd->ppid = -1;
  63
  64   trp_pd->msg_selectable_sockets = xbt_queue_new(0,sizeof(gras_socket_t));
  65
  66   trp_pd->meas_selectable_sockets = xbt_queue_new(0,sizeof(gras_socket_t));
  67
  68   VERB2("Creating process '%s' (%d)",
  69         SIMIX_process_get_name(SIMIX_process_self()),
  70         gras_os_getpid());
  71 }
  72
  73 void
  74 gras_process_exit() {
  75         xbt_dynar_t sockets = ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
  76   gras_socket_t sock_iter;
  77   int cursor;
  78   gras_hostdata_t *hd=
  79     (gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  80   gras_procdata_t *pd=
  81     (gras_procdata_t*)SIMIX_process_get_data(SIMIX_process_self());
  82
  83   gras_msg_procdata_t msg_pd=
  84     (gras_msg_procdata_t)gras_libdata_by_name("gras_msg");
  85   gras_trp_procdata_t trp_pd=
  86     (gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  87
  88   xbt_queue_free(&trp_pd->msg_selectable_sockets);
  89
  90   xbt_queue_free(&trp_pd->meas_selectable_sockets);
  91
  92
  93   xbt_assert0(hd,"Run gras_process_init (ie, gras_init)!!");
  94
  95   VERB2("GRAS: Finalizing process '%s' (%d)",
  96         SIMIX_process_get_name(SIMIX_process_self()),gras_os_getpid());
  97
  98   if (xbt_dynar_length(msg_pd->msg_queue))
  99     WARN1("process %d terminated, but some messages are still queued",
 100           gras_os_getpid());
 101
 102   /* if each process has its sockets list, we need to close them when the
 103            process finish */
 104   xbt_dynar_foreach(sockets,cursor,sock_iter) {
 105     VERB1("Closing the socket %p left open on exit. Maybe a socket leak?",
 106           sock_iter);
 107     gras_socket_close(sock_iter);
 108   }
 109   if ( ! --(hd->refcount)) {
 110     xbt_dynar_free(&hd->ports);
 111     free(hd);
 112   }
 113   gras_procdata_exit();
 114   free(pd);
 115 }
 116
 117 /* **************************************************************************
 118  * Process data (public interface)
 119  * **************************************************************************/
 120
 121 gras_procdata_t *gras_procdata_get(void) {
 122   gras_procdata_t *pd=
 123     (gras_procdata_t *)SIMIX_process_get_data(SIMIX_process_self());
 124
 125   xbt_assert0(pd,"Run gras_process_init! (ie, gras_init)");
 126
 127   return pd;
 128 }
 129 void *
 130 gras_libdata_by_name_from_remote(const char *name, smx_process_t p) {
 131   gras_procdata_t *pd=
 132     (gras_procdata_t *)SIMIX_process_get_data(p);
 133
 134   xbt_assert2(pd,"process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
 135               SIMIX_process_get_name(p),SIMIX_host_get_name(SIMIX_process_get_host(p)));
 136
 137   return gras_libdata_by_name_from_procdata(name, pd);
 138 }
 139
 140 /**
 141  * \brief Returns the value of a property for the current gras process
 142  *
 143  * \return the value of the property
 144  */
 145 const char* gras_process_property_value(char* name)
 146 {
 147  return xbt_dict_get_or_null(SIMIX_process_get_properties(SIMIX_process_self()), name);
 148 }
 149
 150 /**
 151  * \brief Returns the dictionary of properties for the current gras process
 152  *
 153  * \return the dictionary
 154  */
 155 xbt_dict_t gras_process_properties(void)
 156 {
 157   return SIMIX_process_get_properties(SIMIX_process_self());
 158 }
 159
 160 /* **************************************************************************
 161  * OS virtualization function
 162  * **************************************************************************/
 163
 164 const char* xbt_procname(void) {
 165   const char *res = NULL;
 166   smx_process_t process = SIMIX_process_self();
 167   if ((process != NULL) && (process->simdata))
 168     res = SIMIX_process_get_name(process);
 169   if (res)
 170     return res;
 171   else
 172     return "";
 173 }
 174
 175 int gras_os_getpid(void) {
 176
 177   smx_process_t process = SIMIX_process_self();
 178
 179   if ((process != NULL) && (process->data))
 180      return ((gras_procdata_t*)process->data)->pid;
 181   else
 182     return 0;
 183 }
 184
 185 /**
 186  * \brief Returns the value of a property for the current gras os
 187  *
 188  * \return the value of the property
 189  */
 190 const char* gras_os_property_value(char* name)
 191 {
 192  return xbt_dict_get_or_null(SIMIX_host_get_properties(SIMIX_process_get_host(SIMIX_process_self())), name);
 193 }
 194
 195 /**
 196  * \brief Returns the dictionary of properties for the gras host
 197  *
 198  * \return the dictionary
 199  */
 200 xbt_dict_t gras_os_host_properties(void)
 201 {
 202   return SIMIX_host_get_properties(SIMIX_process_get_host(SIMIX_process_self()));
 203 }
 204
 205 /* **************************************************************************
 206  * Interface with SIMIX
 207  * **************************************************************************/
 208
 209 void gras_global_init(int *argc,char **argv) {
 210    SIMIX_global_init(argc,argv);
 211 }
 212 void gras_create_environment(const char *file) {
 213    SIMIX_create_environment(file);
 214 }
 215 void gras_function_register(const char *name, xbt_main_func_t code) {
 216    SIMIX_function_register(name, code);
 217 }
 218
 219 void gras_main() {
 220   smx_cond_t cond = NULL;
 221   smx_action_t action;
 222   xbt_fifo_t actions_done = xbt_fifo_new();
 223   xbt_fifo_t actions_failed = xbt_fifo_new();
 224
 225   /* Clean IO before the run */
 226   fflush(stdout);
 227   fflush(stderr);
 228
 229   while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
 230     while ( (action = xbt_fifo_pop(actions_failed)) ) {
 231       DEBUG1("** %s failed **",action->name);
 232       while ( (cond = xbt_fifo_pop(action->cond_list)) ) {
 233         SIMIX_cond_broadcast(cond);
 234       }
 235       /* action finished, destroy it */
 236       //        SIMIX_action_destroy(action);
 237     }
 238
 239     while ( (action = xbt_fifo_pop(actions_done)) ) {
 240       DEBUG1("** %s done **",action->name);
 241       while ( (cond = xbt_fifo_pop(action->cond_list)) ) {
 242         SIMIX_cond_broadcast(cond);
 243       }
 244       /* action finished, destroy it */
 245       //SIMIX_action_destroy(action);
 246     }
 247   }
 248   xbt_fifo_free(actions_failed);
 249   xbt_fifo_free(actions_done);
 250   return;
 251 }
 252
 253 void gras_launch_application(const char *file) {
 254    SIMIX_launch_application(file);
 255 }
 256
 257 void gras_clean() {
 258    SIMIX_clean();
 259 }
 260
 261