src/gras_simix/Virtu/gras_simix_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_simix/Virtu/gras_simix_virtu_sg.h"
  13 #include "gras_simix/Msg/gras_simix_msg_interface.h" /* For some checks at simulation end */
  14 #include "gras_simix/Transport/gras_simix_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         int i;
  23   gras_hostdata_t *hd=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  24   gras_procdata_t *pd=xbt_new0(gras_procdata_t,1);
  25   gras_trp_procdata_t trp_pd;
  26
  27   SIMIX_process_set_data(SIMIX_process_self(),(void*)pd);
  28
  29
  30   gras_procdata_init();
  31
  32   if (!hd) {
  33     /* First process on this host */
  34     hd=xbt_new(gras_hostdata_t,1);
  35     hd->refcount = 1;
  36     hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t),NULL);
  37
  38                 for (i=0;i<65536;i++) {
  39                         hd->cond_port[i] =NULL;
  40                         hd->mutex_port[i] =NULL;
  41                 }
  42                 SIMIX_host_set_data(SIMIX_host_self(),(void*)hd);
  43   } else {
  44     hd->refcount++;
  45   }
  46
  47         trp_pd = (gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  48         trp_pd->pid = PID++;
  49         /*TODO*/
  50         if (SIMIX_process_self() != NULL ) {
  51         //      trp_pd->ppid = gras_os_getpid();
  52                 trp_pd->ppid = -1;
  53         }
  54         else trp_pd->ppid = -1;
  55         trp_pd->mutex = SIMIX_mutex_init();
  56         trp_pd->cond = SIMIX_cond_init();
  57         trp_pd->active_socket = xbt_fifo_new();
  58
  59   VERB2("Creating process '%s' (%ld)",
  60            SIMIX_process_get_name(SIMIX_process_self()),
  61            gras_os_getpid());
  62 }
  63
  64 void
  65 gras_process_exit() {
  66         int i;
  67         xbt_dynar_t sockets = ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
  68   gras_socket_t sock_iter;
  69   int cursor;
  70   gras_hostdata_t *hd=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
  71   gras_procdata_t *pd=(gras_procdata_t*)SIMIX_process_get_data(SIMIX_process_self());
  72
  73   gras_msg_procdata_t msg_pd=(gras_msg_procdata_t)gras_libdata_by_name("gras_msg");
  74   gras_trp_procdata_t trp_pd=(gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
  75
  76         SIMIX_mutex_destroy(trp_pd->mutex);
  77         SIMIX_cond_destroy(trp_pd->cond);
  78         xbt_fifo_free(trp_pd->active_socket);
  79   //int myPID=gras_os_getpid();
  80   //int cpt;
  81   //gras_sg_portrec_t pr;
  82
  83   xbt_assert0(hd,"Run gras_process_init (ie, gras_init)!!");
  84
  85   VERB2("GRAS: Finalizing process '%s' (%ld)",
  86         SIMIX_process_get_name(SIMIX_process_self()),gras_os_getpid());
  87
  88   if (xbt_dynar_length(msg_pd->msg_queue))
  89     WARN1("process %ld terminated, but some messages are still queued",
  90           gras_os_getpid());
  91
  92         /* if each process has its sockets list, we need to close them when the process finish */
  93         xbt_dynar_foreach(sockets,cursor,sock_iter) {
  94                 VERB1("Closing the socket %p left open on exit. Maybe a socket leak?",
  95                                 sock_iter);
  96                 gras_socket_close(sock_iter);
  97         }
  98   if ( ! --(hd->refcount)) {
  99     xbt_dynar_free(&hd->ports);
 100                 for (i=0; i<65536; i++) {
 101                         if(hd->mutex_port[i] != NULL) {
 102                                 SIMIX_mutex_destroy(hd->mutex_port[i]);
 103                                 SIMIX_cond_destroy(hd->cond_port[i]);
 104                                 hd->mutex_port[i] = NULL;
 105                                 hd->cond_port[i] = NULL;
 106                         }
 107                 }
 108     free(hd);
 109   }
 110   gras_procdata_exit();
 111   free(pd);
 112 }
 113
 114 /* **************************************************************************
 115  * Process data
 116  * **************************************************************************/
 117
 118 gras_procdata_t *gras_procdata_get(void) {
 119   gras_procdata_t *pd=
 120     (gras_procdata_t *)SIMIX_process_get_data(SIMIX_process_self());
 121
 122   xbt_assert0(pd,"Run gras_process_init! (ie, gras_init)");
 123
 124   return pd;
 125 }
 126 void *
 127 gras_libdata_by_name_from_remote(const char *name, smx_process_t p) {
 128   gras_procdata_t *pd=
 129     (gras_procdata_t *)SIMIX_process_get_data(p);
 130
 131   xbt_assert2(pd,"process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
 132               SIMIX_process_get_name(p),SIMIX_host_get_name(SIMIX_process_get_host(p)));
 133
 134   return gras_libdata_by_name_from_procdata(name, pd);
 135 }
 136
 137 const char* xbt_procname(void) {
 138   const char *res = NULL;
 139   smx_process_t process = SIMIX_process_self();
 140   if ((process != NULL) && (process->simdata))
 141     res = SIMIX_process_get_name(process);
 142   if (res)
 143     return res;
 144   else
 145     return "";
 146 }
 147
 148 long int gras_os_getpid(void) {
 149
 150   smx_process_t process = SIMIX_process_self();
 151
 152   if ((process != NULL) && (process->data))
 153     return 1;
 154   else
 155     return 0;
 156 }