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                         /* no cleanup, thx, users will call gras_exit() */NULL);
  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->mutex = SIMIX_mutex_init();
  65         trp_pd->cond = SIMIX_cond_init();
  66         trp_pd->mutex_meas = SIMIX_mutex_init();
  67         trp_pd->cond_meas = SIMIX_cond_init();
  68         trp_pd->active_socket = xbt_fifo_new();
  69         trp_pd->active_socket_meas = xbt_fifo_new();
  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=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  82   gras_procdata_t *pd=(gras_procdata_t*)SIMIX_process_get_data(SIMIX_process_self());
  83
  84   gras_msg_procdata_t msg_pd=(gras_msg_procdata_t)gras_libdata_by_name("gras_msg");
  85   gras_trp_procdata_t trp_pd=(gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  86
  87         SIMIX_mutex_destroy(trp_pd->mutex);
  88         SIMIX_cond_destroy(trp_pd->cond);
  89         xbt_fifo_free(trp_pd->active_socket);
  90         SIMIX_mutex_destroy(trp_pd->mutex_meas);
  91         SIMIX_cond_destroy(trp_pd->cond_meas);
  92         xbt_fifo_free(trp_pd->active_socket_meas);
  93
  94
  95   xbt_assert0(hd,"Run gras_process_init (ie, gras_init)!!");
  96
  97   VERB2("GRAS: Finalizing process '%s' (%d)",
  98         SIMIX_process_get_name(SIMIX_process_self()),gras_os_getpid());
  99
 100   if (xbt_dynar_length(msg_pd->msg_queue))
 101     WARN1("process %d terminated, but some messages are still queued",
 102           gras_os_getpid());
 103
 104         /* if each process has its sockets list, we need to close them when the process finish */
 105         xbt_dynar_foreach(sockets,cursor,sock_iter) {
 106                 VERB1("Closing the socket %p left open on exit. Maybe a socket leak?",
 107                                 sock_iter);
 108                 gras_socket_close(sock_iter);
 109         }
 110   if ( ! --(hd->refcount)) {
 111     xbt_dynar_free(&hd->ports);
 112     free(hd);
 113   }
 114   gras_procdata_exit();
 115   free(pd);
 116 }
 117
 118 /* **************************************************************************
 119  * Process data (public interface)
 120  * **************************************************************************/
 121
 122 gras_procdata_t *gras_procdata_get(void) {
 123   gras_procdata_t *pd=
 124     (gras_procdata_t *)SIMIX_process_get_data(SIMIX_process_self());
 125
 126   xbt_assert0(pd,"Run gras_process_init! (ie, gras_init)");
 127
 128   return pd;
 129 }
 130 void *
 131 gras_libdata_by_name_from_remote(const char *name, smx_process_t p) {
 132   gras_procdata_t *pd=
 133     (gras_procdata_t *)SIMIX_process_get_data(p);
 134
 135   xbt_assert2(pd,"process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
 136               SIMIX_process_get_name(p),SIMIX_host_get_name(SIMIX_process_get_host(p)));
 137
 138   return gras_libdata_by_name_from_procdata(name, pd);
 139 }
 140
 141 /* **************************************************************************
 142  * OS virtualization function
 143  * **************************************************************************/
 144
 145 const char* xbt_procname(void) {
 146   const char *res = NULL;
 147   smx_process_t process = SIMIX_process_self();
 148   if ((process != NULL) && (process->simdata))
 149     res = SIMIX_process_get_name(process);
 150   if (res)
 151     return res;
 152   else
 153     return "";
 154 }
 155
 156 int gras_os_getpid(void) {
 157
 158   smx_process_t process = SIMIX_process_self();
 159
 160   if ((process != NULL) && (process->data))
 161      return ((gras_procdata_t*)process->data)->pid;
 162   else
 163     return 0;
 164 }
 165
 166 /* **************************************************************************
 167  * Interface with SIMIX
 168  * **************************************************************************/
 169
 170 void gras_global_init(int *argc,char **argv) {
 171    return SIMIX_global_init(argc,argv);
 172 }
 173 void gras_create_environment(const char *file) {
 174    return SIMIX_create_environment(file);
 175 }
 176 void gras_function_register(const char *name, xbt_main_func_t code) {
 177    return SIMIX_function_register(name, code);
 178 }
 179 void gras_main() {
 180    smx_cond_t cond = NULL;
 181    smx_action_t smx_action;
 182    xbt_fifo_t actions_done = xbt_fifo_new();
 183    xbt_fifo_t actions_failed = xbt_fifo_new();
 184
 185
 186    /* Clean IO before the run */
 187    fflush(stdout);
 188    fflush(stderr);
 189
 190
 191    while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
 192
 193       while ( (smx_action = xbt_fifo_pop(actions_failed)) ) {
 194
 195
 196          DEBUG1("** %s failed **",smx_action->name);
 197          while ( (cond = xbt_fifo_pop(smx_action->cond_list)) ) {
 198             SIMIX_cond_broadcast(cond);
 199                         }
 200          /* action finished, destroy it */
 201          //     SIMIX_action_destroy(smx_action);
 202       }
 203
 204       while ( (smx_action = xbt_fifo_pop(actions_done)) ) {
 205
 206          DEBUG1("** %s done **",smx_action->name);
 207          while ( (cond = xbt_fifo_pop(smx_action->cond_list)) ) {
 208             SIMIX_cond_broadcast(cond);
 209          }
 210          /* action finished, destroy it */
 211          //SIMIX_action_destroy(smx_action);
 212       }
 213    }
 214    xbt_fifo_free(actions_failed);
 215    xbt_fifo_free(actions_done);
 216    return;
 217 }
 218 void gras_launch_application(const char *file) {
 219    return SIMIX_launch_application(file);
 220 }
 221 void gras_clean() {
 222    return SIMIX_clean();
 223 }
 224
 225