/* process_sg - GRAS process handling on simulator */
-/* Authors: Martin Quinson */
-/* Copyright (C) 2003,2004 da GRAS posse. */
+/* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
- under the terms of the license (GNU LGPL) which comes with this package. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+#include "xbt/ex.h"
+#include "gras_modinter.h" /* module initialization interface */
#include "gras/Virtu/virtu_sg.h"
+#include "gras/Msg/msg_interface.h" /* For some checks at simulation end */
+#include "gras/Transport/transport_interface.h" /* For some checks at simulation end */
-GRAS_LOG_EXTERNAL_CATEGORY(process);
-GRAS_LOG_DEFAULT_CATEGORY(process);
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(gras_virtu_process);
-gras_error_t
+static long int PID = 1;
+
+void
gras_process_init() {
- gras_error_t errcode;
- gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
- gras_procdata_t *pd;
- gras_sg_portrec_t prraw,pr;
- int i;
-
- pd=gras_new(gras_procdata_t,1);
+ gras_hostdata_t *hd=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
+ gras_procdata_t *pd=xbt_new0(gras_procdata_t,1);
+ gras_trp_procdata_t trp_pd;
- if (MSG_process_set_data(MSG_process_self(),(void*)pd) != MSG_OK)
- return unknown_error;
- gras_procdata_init();
+ SIMIX_process_set_data(SIMIX_process_self(),(void*)pd);
- if (!hd) {
- hd=gras_new(gras_hostdata_t,1);
- gras_dynar_new(&(hd->ports),sizeof(gras_sg_portrec_t),NULL);
- memset(hd->proc, 0, sizeof(hd->proc[0]) * GRAS_MAX_CHANNEL);
+ gras_procdata_init();
- if (MSG_host_set_data(MSG_host_self(),(void*)hd) != MSG_OK)
- return unknown_error;
- }
-
- /* take a free channel for this process */
- for (i=0; i<GRAS_MAX_CHANNEL && hd->proc[i]; i++);
- if (i == GRAS_MAX_CHANNEL)
- RAISE2(system_error,
- "GRAS: Can't add a new process on %s, because all channel are already in use. Please increase MAX CHANNEL (which is %d for now) and recompile GRAS\n.",
- MSG_host_get_name(MSG_host_self()),GRAS_MAX_CHANNEL);
-
- pd->chan = i;
- hd->proc[ i ] = MSG_process_self_PID();
-
- /* regiter it to the ports structure */
- pr.port = -1;
- pr.tochan = i;
- pr.raw = 0;
- gras_dynar_push(hd->ports,&pr);
-
- /* take a free RAW channel for this process */
- for (i=0; i<GRAS_MAX_CHANNEL && hd->proc[i]; i++);
- if (i == GRAS_MAX_CHANNEL) {
- RAISE2(system_error,
- "GRAS: Can't add a new process on %s, because all channel are already in use. Please increase MAX CHANNEL (which is %d for now) and recompile GRAS\n.",
- MSG_host_get_name(MSG_host_self()),GRAS_MAX_CHANNEL);
+ if (!hd) {
+ /* First process on this host */
+ hd=xbt_new(gras_hostdata_t,1);
+ hd->refcount = 1;
+ hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t),NULL);
+ SIMIX_host_set_data(SIMIX_host_self(),(void*)hd);
+ } else {
+ hd->refcount++;
}
- pd->rawChan = i;
- hd->proc[ i ] = MSG_process_self_PID();
+ trp_pd = (gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
+ pd->pid = PID++;
+
+ if (SIMIX_process_self() != NULL ) {
+ pd->ppid = gras_os_getpid();
+ }
+ else pd->ppid = -1;
- /* regiter it to the ports structure */
- prraw.port = -1;
- prraw.tochan = i;
- prraw.raw = 1;
- gras_dynar_push(hd->ports,&prraw);
+ trp_pd->mutex = SIMIX_mutex_init();
+ trp_pd->cond = SIMIX_cond_init();
+ trp_pd->active_socket = xbt_fifo_new();
VERB2("Creating process '%s' (%d)",
- MSG_process_get_name(MSG_process_self()),
- MSG_process_self_PID());
- return no_error;
+ SIMIX_process_get_name(SIMIX_process_self()),
+ gras_os_getpid());
}
-gras_error_t
+void
gras_process_exit() {
- gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
- gras_procdata_t *pd=gras_procdata_get();
- int myPID=MSG_process_self_PID();
- int cpt;
- gras_sg_portrec_t pr;
+ xbt_dynar_t sockets = ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
+ gras_socket_t sock_iter;
+ int cursor;
+ gras_hostdata_t *hd=(gras_hostdata_t *)SIMIX_host_get_data(SIMIX_host_self());
+ gras_procdata_t *pd=(gras_procdata_t*)SIMIX_process_get_data(SIMIX_process_self());
- gras_assert0(hd && pd,"Run gras_process_init!!");
+ gras_msg_procdata_t msg_pd=(gras_msg_procdata_t)gras_libdata_by_name("gras_msg");
+ gras_trp_procdata_t trp_pd=(gras_trp_procdata_t)gras_libdata_by_name("gras_trp");
- INFO2("GRAS: Finalizing process '%s' (%d)",
- MSG_process_get_name(MSG_process_self()),MSG_process_self_PID());
+ SIMIX_mutex_destroy(trp_pd->mutex);
+ SIMIX_cond_destroy(trp_pd->cond);
+ xbt_fifo_free(trp_pd->active_socket);
+ //int myPID=gras_os_getpid();
+ //int cpt;
+ //gras_sg_portrec_t pr;
- if (gras_dynar_length(pd->msg_queue))
- WARN1("process %d terminated, but some messages are still queued",
- MSG_process_self_PID());
+ xbt_assert0(hd,"Run gras_process_init (ie, gras_init)!!");
- for (cpt=0; cpt< GRAS_MAX_CHANNEL; cpt++)
- if (myPID == hd->proc[cpt])
- hd->proc[cpt] = 0;
+ VERB2("GRAS: Finalizing process '%s' (%d)",
+ SIMIX_process_get_name(SIMIX_process_self()),gras_os_getpid());
- gras_dynar_foreach(hd->ports, cpt, pr) {
- if (pr.port == pd->chan || pr.port == pd->rawChan) {
- gras_dynar_cursor_rm(hd->ports, &cpt);
- }
+ if (xbt_dynar_length(msg_pd->msg_queue))
+ WARN1("process %d terminated, but some messages are still queued",
+ gras_os_getpid());
+
+ /* if each process has its sockets list, we need to close them when the process finish */
+ xbt_dynar_foreach(sockets,cursor,sock_iter) {
+ VERB1("Closing the socket %p left open on exit. Maybe a socket leak?",
+ sock_iter);
+ gras_socket_close(sock_iter);
+ }
+ if ( ! --(hd->refcount)) {
+ xbt_dynar_free(&hd->ports);
+ free(hd);
}
-
- return no_error;
+ gras_procdata_exit();
+ free(pd);
}
/* **************************************************************************
gras_procdata_t *gras_procdata_get(void) {
gras_procdata_t *pd=
- (gras_procdata_t *)MSG_process_get_data(MSG_process_self());
+ (gras_procdata_t *)SIMIX_process_get_data(SIMIX_process_self());
- gras_assert0(pd,"Run gras_process_init!");
+ xbt_assert0(pd,"Run gras_process_init! (ie, gras_init)");
return pd;
}
+void *
+gras_libdata_by_name_from_remote(const char *name, smx_process_t p) {
+ gras_procdata_t *pd=
+ (gras_procdata_t *)SIMIX_process_get_data(p);
+ xbt_assert2(pd,"process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
+ SIMIX_process_get_name(p),SIMIX_host_get_name(SIMIX_process_get_host(p)));
+
+ return gras_libdata_by_name_from_procdata(name, pd);
+}
+
+const char* xbt_procname(void) {
+ const char *res = NULL;
+ smx_process_t process = SIMIX_process_self();
+ if ((process != NULL) && (process->simdata))
+ res = SIMIX_process_get_name(process);
+ if (res)
+ return res;
+ else
+ return "";
+}
+
+int gras_os_getpid(void) {
+
+ smx_process_t process = SIMIX_process_self();
+
+ if ((process != NULL) && (process->data))
+ return ((gras_procdata_t*)process->data)->pid;
+ else
+ return 0;
+}
