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 void
  21 gras_process_init() {
  22   gras_hostdata_t *hd=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  23   gras_procdata_t *pd=xbt_new0(gras_procdata_t,1);
  24   gras_trp_procdata_t trp_pd;
  25
  26   SIMIX_process_set_data(SIMIX_process_self(),(void*)pd);
  27
  28
  29   gras_procdata_init();
  30
  31   if (!hd) {
  32     /* First process on this host */
  33     hd=xbt_new(gras_hostdata_t,1);
  34     hd->refcount = 1;
  35     hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t),NULL);
  36                 SIMIX_host_set_data(SIMIX_host_self(),(void*)hd);
  37   } else {
  38     hd->refcount++;
  39   }
  40
  41         trp_pd = (gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  42         pd->pid = PID++;
  43
  44         if (SIMIX_process_self() != NULL ) {
  45                 pd->ppid = gras_os_getpid();
  46         }
  47         else pd->ppid = -1;
  48
  49         trp_pd->mutex = SIMIX_mutex_init();
  50         trp_pd->cond = SIMIX_cond_init();
  51         trp_pd->mutex_meas = SIMIX_mutex_init();
  52         trp_pd->cond_meas = SIMIX_cond_init();
  53         trp_pd->active_socket = xbt_fifo_new();
  54         trp_pd->active_socket_meas = xbt_fifo_new();
  55
  56   VERB2("Creating process '%s' (%d)",
  57            SIMIX_process_get_name(SIMIX_process_self()),
  58            gras_os_getpid());
  59 }
  60
  61 void
  62 gras_process_exit() {
  63         xbt_dynar_t sockets = ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
  64   gras_socket_t sock_iter;
  65   int cursor;
  66   gras_hostdata_t *hd=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  67   gras_procdata_t *pd=(gras_procdata_t*)SIMIX_process_get_data(SIMIX_process_self());
  68
  69   gras_msg_procdata_t msg_pd=(gras_msg_procdata_t)gras_libdata_by_name("gras_msg");
  70   gras_trp_procdata_t trp_pd=(gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  71
  72         SIMIX_mutex_destroy(trp_pd->mutex);
  73         SIMIX_cond_destroy(trp_pd->cond);
  74         xbt_fifo_free(trp_pd->active_socket);
  75         SIMIX_mutex_destroy(trp_pd->mutex_meas);
  76         SIMIX_cond_destroy(trp_pd->cond_meas);
  77         xbt_fifo_free(trp_pd->active_socket_meas);
  78
  79
  80   xbt_assert0(hd,"Run gras_process_init (ie, gras_init)!!");
  81
  82   VERB2("GRAS: Finalizing process '%s' (%d)",
  83         SIMIX_process_get_name(SIMIX_process_self()),gras_os_getpid());
  84
  85   if (xbt_dynar_length(msg_pd->msg_queue))
  86     WARN1("process %d terminated, but some messages are still queued",
  87           gras_os_getpid());
  88
  89         /* if each process has its sockets list, we need to close them when the process finish */
  90         xbt_dynar_foreach(sockets,cursor,sock_iter) {
  91                 VERB1("Closing the socket %p left open on exit. Maybe a socket leak?",
  92                                 sock_iter);
  93                 gras_socket_close(sock_iter);
  94         }
  95   if ( ! --(hd->refcount)) {
  96     xbt_dynar_free(&hd->ports);
  97     free(hd);
  98   }
  99   gras_procdata_exit();
 100   free(pd);
 101 }
 102
 103 /* **************************************************************************
 104  * Process data
 105  * **************************************************************************/
 106
 107 gras_procdata_t *gras_procdata_get(void) {
 108   gras_procdata_t *pd=
 109     (gras_procdata_t *)SIMIX_process_get_data(SIMIX_process_self());
 110
 111   xbt_assert0(pd,"Run gras_process_init! (ie, gras_init)");
 112
 113   return pd;
 114 }
 115 void *
 116 gras_libdata_by_name_from_remote(const char *name, smx_process_t p) {
 117   gras_procdata_t *pd=
 118     (gras_procdata_t *)SIMIX_process_get_data(p);
 119
 120   xbt_assert2(pd,"process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
 121               SIMIX_process_get_name(p),SIMIX_host_get_name(SIMIX_process_get_host(p)));
 122
 123   return gras_libdata_by_name_from_procdata(name, pd);
 124 }
 125
 126 const char* xbt_procname(void) {
 127   const char *res = NULL;
 128   smx_process_t process = SIMIX_process_self();
 129   if ((process != NULL) && (process->simdata))
 130     res = SIMIX_process_get_name(process);
 131   if (res)
 132     return res;
 133   else
 134     return "";
 135 }
 136
 137 int gras_os_getpid(void) {
 138
 139   smx_process_t process = SIMIX_process_self();
 140
 141   if ((process != NULL) && (process->data))
 142                 return ((gras_procdata_t*)process->data)->pid;
 143   else
 144     return 0;
 145 }