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_fifo_new();
  64   trp_pd->msg_select_mutex = SIMIX_mutex_init();
  65   trp_pd->msg_select_cond = SIMIX_cond_init();
  66
  67   trp_pd->meas_selectable_sockets = xbt_fifo_new();
  68   trp_pd->meas_select_mutex = SIMIX_mutex_init();
  69   trp_pd->meas_select_cond = SIMIX_cond_init();
  70
  71   VERB2("Creating process '%s' (%d)",
  72         SIMIX_process_get_name(SIMIX_process_self()),
  73         gras_os_getpid());
  74 }
  75
  76 void
  77 gras_process_exit() {
  78         xbt_dynar_t sockets = ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
  79   gras_socket_t sock_iter;
  80   int cursor;
  81   gras_hostdata_t *hd=
  82     (gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  83   gras_procdata_t *pd=
  84     (gras_procdata_t*)SIMIX_process_get_data(SIMIX_process_self());
  85
  86   gras_msg_procdata_t msg_pd=
  87     (gras_msg_procdata_t)gras_libdata_by_name("gras_msg");
  88   gras_trp_procdata_t trp_pd=
  89     (gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  90
  91   SIMIX_mutex_destroy(trp_pd->msg_select_mutex);
  92   SIMIX_cond_destroy(trp_pd->msg_select_cond);
  93   xbt_fifo_free(trp_pd->msg_selectable_sockets);
  94
  95   SIMIX_mutex_destroy(trp_pd->meas_select_mutex);
  96   SIMIX_cond_destroy(trp_pd->meas_select_cond);
  97   xbt_fifo_free(trp_pd->meas_selectable_sockets);
  98
  99
 100   xbt_assert0(hd,"Run gras_process_init (ie, gras_init)!!");
 101
 102   VERB2("GRAS: Finalizing process '%s' (%d)",
 103         SIMIX_process_get_name(SIMIX_process_self()),gras_os_getpid());
 104
 105   if (xbt_dynar_length(msg_pd->msg_queue))
 106     WARN1("process %d terminated, but some messages are still queued",
 107           gras_os_getpid());
 108
 109   /* if each process has its sockets list, we need to close them when the
 110            process finish */
 111   xbt_dynar_foreach(sockets,cursor,sock_iter) {
 112     VERB1("Closing the socket %p left open on exit. Maybe a socket leak?",
 113           sock_iter);
 114     gras_socket_close(sock_iter);
 115   }
 116   if ( ! --(hd->refcount)) {
 117     xbt_dynar_free(&hd->ports);
 118     free(hd);
 119   }
 120   gras_procdata_exit();
 121   free(pd);
 122 }
 123
 124 /* **************************************************************************
 125  * Process data (public interface)
 126  * **************************************************************************/
 127
 128 gras_procdata_t *gras_procdata_get(void) {
 129   gras_procdata_t *pd=
 130     (gras_procdata_t *)SIMIX_process_get_data(SIMIX_process_self());
 131
 132   xbt_assert0(pd,"Run gras_process_init! (ie, gras_init)");
 133
 134   return pd;
 135 }
 136 void *
 137 gras_libdata_by_name_from_remote(const char *name, smx_process_t p) {
 138   gras_procdata_t *pd=
 139     (gras_procdata_t *)SIMIX_process_get_data(p);
 140
 141   xbt_assert2(pd,"process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
 142               SIMIX_process_get_name(p),SIMIX_host_get_name(SIMIX_process_get_host(p)));
 143
 144   return gras_libdata_by_name_from_procdata(name, pd);
 145 }
 146
 147 /* **************************************************************************
 148  * OS virtualization function
 149  * **************************************************************************/
 150
 151 const char* xbt_procname(void) {
 152   const char *res = NULL;
 153   smx_process_t process = SIMIX_process_self();
 154   if ((process != NULL) && (process->simdata))
 155     res = SIMIX_process_get_name(process);
 156   if (res)
 157     return res;
 158   else
 159     return "";
 160 }
 161
 162 int gras_os_getpid(void) {
 163
 164   smx_process_t process = SIMIX_process_self();
 165
 166   if ((process != NULL) && (process->data))
 167      return ((gras_procdata_t*)process->data)->pid;
 168   else
 169     return 0;
 170 }
 171
 172 /* **************************************************************************
 173  * Interface with SIMIX
 174  * **************************************************************************/
 175
 176 void gras_global_init(int *argc,char **argv) {
 177    return SIMIX_global_init(argc,argv);
 178 }
 179 void gras_create_environment(const char *file) {
 180    return SIMIX_create_environment(file);
 181 }
 182 void gras_function_register(const char *name, xbt_main_func_t code) {
 183    return SIMIX_function_register(name, code);
 184 }
 185 void gras_main() {
 186    smx_cond_t cond = NULL;
 187    smx_action_t smx_action;
 188    xbt_fifo_t actions_done = xbt_fifo_new();
 189    xbt_fifo_t actions_failed = xbt_fifo_new();
 190
 191
 192    /* Clean IO before the run */
 193    fflush(stdout);
 194    fflush(stderr);
 195
 196
 197    while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
 198
 199       while ( (smx_action = xbt_fifo_pop(actions_failed)) ) {
 200
 201
 202          DEBUG1("** %s failed **",smx_action->name);
 203          while ( (cond = xbt_fifo_pop(smx_action->cond_list)) ) {
 204             SIMIX_cond_broadcast(cond);
 205                         }
 206          /* action finished, destroy it */
 207          //     SIMIX_action_destroy(smx_action);
 208       }
 209
 210       while ( (smx_action = xbt_fifo_pop(actions_done)) ) {
 211
 212          DEBUG1("** %s done **",smx_action->name);
 213          while ( (cond = xbt_fifo_pop(smx_action->cond_list)) ) {
 214             SIMIX_cond_broadcast(cond);
 215          }
 216          /* action finished, destroy it */
 217          //SIMIX_action_destroy(smx_action);
 218       }
 219    }
 220    xbt_fifo_free(actions_failed);
 221    xbt_fifo_free(actions_done);
 222    return;
 223 }
 224 void gras_launch_application(const char *file) {
 225    return SIMIX_launch_application(file);
 226 }
 227 void gras_clean() {
 228    return SIMIX_clean();
 229 }
 230
 231