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