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->mutex = SIMIX_mutex_init();
  64         trp_pd->cond = SIMIX_cond_init();
  65         trp_pd->mutex_meas = SIMIX_mutex_init();
  66         trp_pd->cond_meas = SIMIX_cond_init();
  67         trp_pd->active_socket = xbt_fifo_new();
  68         trp_pd->active_socket_meas = xbt_fifo_new();
  69
  70   VERB2("Creating process '%s' (%d)",
  71            SIMIX_process_get_name(SIMIX_process_self()),
  72            gras_os_getpid());
  73 }
  74
  75 void
  76 gras_process_exit() {
  77         xbt_dynar_t sockets = ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
  78   gras_socket_t sock_iter;
  79   int cursor;
  80   gras_hostdata_t *hd=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  81   gras_procdata_t *pd=(gras_procdata_t*)SIMIX_process_get_data(SIMIX_process_self());
  82
  83   gras_msg_procdata_t msg_pd=(gras_msg_procdata_t)gras_libdata_by_name("gras_msg");
  84   gras_trp_procdata_t trp_pd=(gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  85
  86         SIMIX_mutex_destroy(trp_pd->mutex);
  87         SIMIX_cond_destroy(trp_pd->cond);
  88         xbt_fifo_free(trp_pd->active_socket);
  89         SIMIX_mutex_destroy(trp_pd->mutex_meas);
  90         SIMIX_cond_destroy(trp_pd->cond_meas);
  91         xbt_fifo_free(trp_pd->active_socket_meas);
  92
  93
  94   xbt_assert0(hd,"Run gras_process_init (ie, gras_init)!!");
  95
  96   VERB2("GRAS: Finalizing process '%s' (%d)",
  97         SIMIX_process_get_name(SIMIX_process_self()),gras_os_getpid());
  98
  99   if (xbt_dynar_length(msg_pd->msg_queue))
 100     WARN1("process %d terminated, but some messages are still queued",
 101           gras_os_getpid());
 102
 103         /* if each process has its sockets list, we need to close them when the 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  * OS virtualization function
 142  * **************************************************************************/
 143
 144 const char* xbt_procname(void) {
 145   const char *res = NULL;
 146   smx_process_t process = SIMIX_process_self();
 147   if ((process != NULL) && (process->simdata))
 148     res = SIMIX_process_get_name(process);
 149   if (res)
 150     return res;
 151   else
 152     return "";
 153 }
 154
 155 int gras_os_getpid(void) {
 156
 157   smx_process_t process = SIMIX_process_self();
 158
 159   if ((process != NULL) && (process->data))
 160      return ((gras_procdata_t*)process->data)->pid;
 161   else
 162     return 0;
 163 }
 164
 165 /* **************************************************************************
 166  * Interface with SIMIX
 167  * **************************************************************************/
 168
 169 void gras_global_init(int *argc,char **argv) {
 170    return SIMIX_global_init(argc,argv);
 171 }
 172 void gras_create_environment(const char *file) {
 173    return SIMIX_create_environment(file);
 174 }
 175 void gras_function_register(const char *name, xbt_main_func_t code) {
 176    return SIMIX_function_register(name, code);
 177 }
 178 void gras_main() {
 179    smx_cond_t cond = NULL;
 180    smx_action_t smx_action;
 181    xbt_fifo_t actions_done = xbt_fifo_new();
 182    xbt_fifo_t actions_failed = xbt_fifo_new();
 183
 184
 185    /* Clean IO before the run */
 186    fflush(stdout);
 187    fflush(stderr);
 188
 189
 190    while (SIMIX_solve(actions_done, actions_failed) != -1.0) {
 191
 192       while ( (smx_action = xbt_fifo_pop(actions_failed)) ) {
 193
 194
 195          DEBUG1("** %s failed **",smx_action->name);
 196          while ( (cond = xbt_fifo_pop(smx_action->cond_list)) ) {
 197             SIMIX_cond_broadcast(cond);
 198                         }
 199          /* action finished, destroy it */
 200          //     SIMIX_action_destroy(smx_action);
 201       }
 202
 203       while ( (smx_action = xbt_fifo_pop(actions_done)) ) {
 204
 205          DEBUG1("** %s done **",smx_action->name);
 206          while ( (cond = xbt_fifo_pop(smx_action->cond_list)) ) {
 207             SIMIX_cond_broadcast(cond);
 208          }
 209          /* action finished, destroy it */
 210          //SIMIX_action_destroy(smx_action);
 211       }
 212    }
 213    xbt_fifo_free(actions_failed);
 214    xbt_fifo_free(actions_done);
 215    return;
 216 }
 217 void gras_launch_application(const char *file) {
 218    return SIMIX_launch_application(file);
 219 }
 220 void gras_clean() {
 221    return SIMIX_clean();
 222 }
 223
 224