-/* $Id$ */
-
-/* Copyright (c) 2002,2003,2004 Arnaud Legrand. All rights reserved. */
+/* $Id$ */
+
+/* Copyright (c) 2002-2007 Arnaud Legrand. */
+/* Copyright (c) 2007 Bruno Donassolo. */
+/* 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. */
+
+#include "msg/private.h"
+#include "xbt/sysdep.h"
+#include "xbt/log.h"
-#include"private.h"
-#include"xbt/sysdep.h"
-#include "xbt/error.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(host, msg,
- "Logging specific to MSG (host)");
+/** \defgroup m_host_management Management functions of Hosts
+ * \brief This section describes the host structure of MSG
+ */
+/** @addtogroup m_host_management
+ * \htmlonly <!-- DOXYGEN_NAVBAR_LABEL="Hosts" --> \endhtmlonly
+ * (#m_host_t) and the functions for managing it.
+ *
+ * A <em>location</em> (or <em>host</em>) is any possible place where
+ * a process may run. Thus it may be represented as a
+ * <em>physical resource with computing capabilities</em>, some
+ * <em>mailboxes</em> to enable running process to communicate with
+ * remote ones, and some <em>private data</em> that can be only
+ * accessed by local process.
+ * \see m_host_t
+ */
/********************************* Host **************************************/
-m_host_t __MSG_host_create(const char *name,
- void *workstation,
- void *data)
+m_host_t __MSG_host_create(smx_host_t workstation, void *data)
{
+ const char * name;
simdata_host_t simdata = xbt_new0(s_simdata_host_t,1);
m_host_t host = xbt_new0(s_m_host_t,1);
int i;
+ name = SIMIX_host_get_name(workstation);
/* Host structure */
host->name = xbt_strdup(name);
host->simdata = simdata;
host->data = data;
- simdata->host = workstation;
+ simdata->s_host = workstation;
simdata->mbox = xbt_new0(xbt_fifo_t, msg_global->max_channel);
for (i = 0; i < msg_global->max_channel; i++)
simdata->mbox[i] = xbt_fifo_new();
- simdata->sleeping = xbt_new0(m_process_t, msg_global->max_channel);
- simdata->process_list = xbt_fifo_new();
- /* Update global variables */
-
- xbt_fifo_push(msg_global->host, host);
+
+ simdata->sleeping = xbt_new0(smx_cond_t, msg_global->max_channel);
+ simdata->mutex = SIMIX_mutex_init();
+ SIMIX_host_set_data(workstation, host);
+ /* Update global variables */
+ xbt_fifo_unshift(msg_global->host, host);
+
return host;
}
or not and attach \a data to \a host if it is possible.
*/
MSG_error_t MSG_host_set_data(m_host_t host, void *data)
-{
+{
xbt_assert0((host!=NULL), "Invalid parameters");
xbt_assert0((host->data == NULL), "Data already set");
return MSG_process_get_host(MSG_process_self());
}
-/**
- * Real function for destroy a host.
+/*
+ * Real function to destroy a host.
* MSG_host_destroy is just a front_end that also removes it from
* msg_global->host
*/
xbt_assert0((host != NULL), "Invalid parameters");
/* Clean Simulator data */
+ /* SIMIX host will be cleaned when MSG_clean calls SIMIX_clean */
simdata = (host)->simdata;
for (i = 0; i < msg_global->max_channel; i++)
xbt_fifo_free(simdata->mbox[i]);
- xbt_free(simdata->mbox);
- xbt_free(simdata->sleeping);
- xbt_assert0((xbt_fifo_size(simdata->process_list)==0),
- "Some process are still running on this host");
- xbt_fifo_free(simdata->process_list);
-
- xbt_free(simdata);
+ free(simdata->mbox);
+ free(simdata->sleeping);
+ SIMIX_mutex_destroy(simdata->mutex);
+ free(simdata);
/* Clean host structure */
- xbt_free(host->name);
- xbt_free(host);
+ free(host->name);
+ free(host);
return;
}
xbt_assert0(0, "Not implemented yet");
return(0);
-/* return(surf_workstation_resource->extension_public->get_load(h->simdata->host)); */
+}
+
+/** \ingroup m_host_management
+ * \brief Return the speed of the processor (in flop/s), regardless of
+ the current load on the machine.
+ */
+double MSG_get_host_speed(m_host_t h)
+{
+ xbt_assert0((h!= NULL), "Invalid parameters");
+
+ return(SIMIX_host_get_speed(h->simdata->s_host));
+}
+
+/** \ingroup msg_gos_functions
+ * \brief Determine if a host is available.
+ *
+ * \param h host to test
+ */
+int MSG_host_is_avail (m_host_t h)
+{
+ xbt_assert0((h!= NULL), "Invalid parameters");
+ return (SIMIX_host_get_state(h->simdata->s_host));
}
