-/* $Id$ */
-
/* process - GRAS process handling (common code for RL and SG) */
-/* Authors: Martin Quinson */
-/* Copyright (C) 2003,2004 da GRAS posse. */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2009, 2010. The SimGrid Team.
+ * 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 "xbt/sysdep.h"
+#include "xbt/log.h"
+#include "gras/transport.h"
+#include "xbt/datadesc.h"
+#include "gras/messages.h"
+#include "gras_modinter.h"
+
+#include "gras/Virtu/virtu_private.h"
+
+XBT_LOG_NEW_SUBCATEGORY(gras_virtu, gras, "Virtualization code");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_virtu_process, gras_virtu,
+ "Process manipulation code");
+
+/* Functions to handle gras_procdata_t->libdata cells*/
+typedef struct {
+ char *name;
+ pvoid_f_void_t constructor;
+ void_f_pvoid_t destructor;
+} s_gras_procdata_fabric_t, *gras_procdata_fabric_t;
+
+static xbt_dynar_t _gras_procdata_fabrics = NULL; /* content: s_gras_procdata_fabric_t */
+
+static void gras_procdata_fabric_free(void *fab)
+{
+ free(((gras_procdata_fabric_t) fab)->name);
+}
-#include "gras_private.h"
-#include "Virtu/virtu_interface.h"
-#include "Msg/msg_interface.h" /* FIXME: Get rid of this cyclic */
+/** @brief declare the functions in charge of creating/destructing the procdata of a module
+ *
+ * This is intended to be called from the gras_<module>_register function.
+ * This returns the module ID you can use for gras_libdata_by_id()
+ */
+int gras_procdata_add(const char *name, pvoid_f_void_t constructor,
+ void_f_pvoid_t destructor)
+{
+
+ gras_procdata_fabric_t fab;
+
+ if (!_gras_procdata_fabrics) {
+ /* create the dynar if needed */
+ _gras_procdata_fabrics =
+ xbt_dynar_new(sizeof(s_gras_procdata_fabric_t),
+ gras_procdata_fabric_free);
+ }
+
+ fab = xbt_dynar_push_ptr(_gras_procdata_fabrics);
+
+ fab->name = xbt_strdup(name);
+ fab->constructor = constructor;
+ fab->destructor = destructor;
+
+ return xbt_dynar_length(_gras_procdata_fabrics) - 1;
+}
/* **************************************************************************
* Process data
* **************************************************************************/
-void *gras_userdata_get(void) {
- gras_procdata_t *pd=gras_procdata_get();
+void *gras_userdata_get(void)
+{
+ gras_procdata_t *pd = gras_procdata_get();
return pd->userdata;
}
-void gras_userdata_set(void *ud) {
- gras_procdata_t *pd=gras_procdata_get();
+void *gras_userdata_set(void *ud)
+{
+ gras_procdata_t *pd = gras_procdata_get();
pd->userdata = ud;
+ return ud;
}
-gras_error_t
-gras_procdata_init() {
- gras_error_t errcode;
- gras_procdata_t *pd=gras_procdata_get();
- pd->userdata = NULL;
- TRY(gras_dynar_new(&(pd->msg_queue), sizeof(gras_msg_t), NULL));
- TRY(gras_dynar_new(&(pd->cbl_list), sizeof(gras_cblist_t *),gras_cbl_free));
- TRY(gras_dynar_new(&(pd->sockets), sizeof(gras_socket_t*), NULL));
- return no_error;
+void *gras_libdata_by_name(const char *name)
+{
+ gras_procdata_t *pd = gras_procdata_get();
+ return gras_libdata_by_name_from_procdata(name, pd);
}
-void
-gras_procdata_exit() {
- gras_procdata_t *pd=gras_procdata_get();
+/* this function is splitted from previous to allow SG to get libdata from remote hosts */
+void *gras_libdata_by_name_from_procdata(const char *name,
+ gras_procdata_t * pd)
+{
+ void *res = NULL;
+ if (xbt_set_length(pd->libdata) <
+ xbt_dynar_length(_gras_procdata_fabrics)) {
+ /* Damn, some new modules were added since procdata_init(). Amok? */
+ /* Get 'em all */
+ gras_procdata_init();
+ }
+ TRY {
+ res = xbt_set_get_by_name(pd->libdata, name);
+ }
+ CATCH_ANONYMOUS {
+ RETHROWF("Cannot retrieve the libdata associated to %s: %s", name);
+ }
+ return res;
+}
- gras_dynar_free(pd->msg_queue);
- gras_dynar_free(pd->cbl_list);
- gras_dynar_free(pd->sockets);
+void *gras_libdata_by_id(int id)
+{
+ gras_procdata_t *pd = gras_procdata_get();
+ if (xbt_set_length(pd->libdata) <
+ xbt_dynar_length(_gras_procdata_fabrics)) {
+ /* Damn, some new modules were added since procdata_init(). Amok? */
+ /* Get 'em all */
+ gras_procdata_init();
+ }
+ return xbt_set_get_by_id(pd->libdata, id);
}
-gras_dynar_t *
-gras_socketset_get(void) {
- return gras_procdata_get()->sockets;
+
+void gras_procdata_init()
+{
+ gras_procdata_t *pd = gras_procdata_get();
+ s_gras_procdata_fabric_t fab;
+
+ unsigned int cursor;
+
+ xbt_set_elm_t elem;
+
+ if (!pd->libdata) {
+ pd->userdata = NULL;
+ pd->libdata = xbt_set_new();
+ }
+
+ xbt_dynar_foreach(_gras_procdata_fabrics, cursor, fab) {
+
+ if (cursor + 1 <= xbt_set_length(pd->libdata)) {
+ XBT_DEBUG("Skip fabric %d: there is already %ld libdata",
+ cursor, xbt_set_length(pd->libdata));
+ continue; /* allow to recall this function to get recently added fabrics */
+ }
+ XBT_DEBUG("Go ahead for cursor %d, there is %ld libdata",
+ cursor, xbt_set_length(pd->libdata));
+
+ xbt_assert(fab.name, "Name of fabric #%d is NULL!", cursor);
+ XBT_DEBUG("Create the procdata for %s", fab.name);
+ /* Check for our own errors */
+
+ if (xbt_set_get_by_name_or_null(pd->libdata, fab.name) != NULL)
+ THROWF(unknown_error, 0,
+ "MayDay: two modules use '%s' as libdata name", fab.name);
+
+ /* Add the data in place, after some more sanity checking */
+ elem = fab.constructor();
+ if (elem->name_len && elem->name_len != strlen(elem->name)) {
+ elem->name_len = strlen(elem->name);
+ XBT_WARN
+ ("Module '%s' constructor is borken: it does not set elem->name_len",
+ fab.name);
+ }
+ xbt_set_add(pd->libdata, elem, fab.destructor);
+ }
+}
+
+void gras_procdata_exit()
+{
+ int len;
+ gras_procdata_t *pd = gras_procdata_get();
+
+ xbt_set_free(&(pd->libdata));
+
+ /* Remove procdata in reverse order wrt creation */
+ while ((len = xbt_dynar_length(_gras_procdata_fabrics))) {
+ xbt_dynar_remove_at(_gras_procdata_fabrics, len - 1, NULL);
+ }
+ xbt_dynar_free(&_gras_procdata_fabrics);
+}
+
+
+const char *gras_os_hostport()
+{
+ static char *res = NULL;
+ free(res); /* my port may have changed */
+ res = bprintf("%s:%d", gras_os_myname(), gras_os_myport());
+ return (const char *) res;
}
