X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9d718fb4abae595ad28ec04bc778dbcb3b37b4c2..6443d4868c5974225d792156daf319775234b087:/src/msg/host.c

diff --git a/src/msg/host.c b/src/msg/host.c
index 2d700c4b37..d1425a2cba 100644
--- a/src/msg/host.c
+++ b/src/msg/host.c
@@ -1,15 +1,13 @@
-/*     $Id$      */
-  
-/* Copyright (c) 2002-2007 Arnaud Legrand.                                  */
-/* Copyright (c) 2007 Bruno Donassolo.                                      */
-/* All rights reserved.                                                     */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 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. */
-  
+
 #include "msg/private.h"
 #include "xbt/sysdep.h"
 #include "xbt/log.h"
+#include "mailbox.h"
 
 /** \defgroup m_host_management Management functions of Hosts
  *  \brief This section describes the host structure of MSG
@@ -30,30 +28,35 @@
 /********************************* Host **************************************/
 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);
+  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);
+  char alias[MAX_ALIAS_NAME + 1] = { 0 };       /* buffer used to build the key of the mailbox */
+
+  name = SIMIX_host_get_name(workstation);
   /* Host structure */
   host->name = xbt_strdup(name);
   host->simdata = simdata;
   host->data = data;
 
-  simdata->s_host = workstation;
+  simdata->smx_host = workstation;
+
+  if (msg_global->max_channel > 0)
+    simdata->mailboxes = xbt_new0(msg_mailbox_t, msg_global->max_channel);
 
-  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(smx_cond_t, msg_global->max_channel);
- 	simdata->mutex = SIMIX_mutex_init();
-	SIMIX_host_set_data(workstation, host);
+  for (i = 0; i < msg_global->max_channel; i++) {
+    sprintf(alias, "%s:%d", name, i);
+
+    /* the key of the mailbox (in this case) is build from the name of the host and the channel number */
+    simdata->mailboxes[i] = MSG_mailbox_new(alias);
+    memset(alias, 0, MAX_ALIAS_NAME + 1);
+  }
+
+  SIMIX_req_host_set_data(workstation, host);
+  xbt_lib_set(host_lib,name,MSG_HOST_LEVEL,host);
 
-  /* Update global variables */
-	xbt_fifo_unshift(msg_global->host, host);
- 
   return host;
 }
 
@@ -65,9 +68,9 @@ m_host_t __MSG_host_create(smx_host_t workstation, void *data)
    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");
+{
+  xbt_assert((host != NULL), "Invalid parameters");
+  xbt_assert((host->data == NULL), "Data already set");
 
   /* Assign data */
   host->data = data;
@@ -85,7 +88,7 @@ MSG_error_t MSG_host_set_data(m_host_t host, void *data)
 void *MSG_host_get_data(m_host_t host)
 {
 
-  xbt_assert0((host != NULL), "Invalid parameters");
+  xbt_assert((host != NULL), "Invalid parameters");
 
   /* Return data */
   return (host->data);
@@ -101,7 +104,8 @@ void *MSG_host_get_data(m_host_t host)
 const char *MSG_host_get_name(m_host_t host)
 {
 
-  xbt_assert0((host != NULL) && (host->simdata != NULL), "Invalid parameters");
+  xbt_assert((host != NULL)
+              && (host->simdata != NULL), "Invalid parameters");
 
   /* Return data */
   return (host->name);
@@ -116,34 +120,27 @@ m_host_t MSG_host_self(void)
   return MSG_process_get_host(MSG_process_self());
 }
 
-/*
- * Real function to destroy a host.
- * MSG_host_destroy is just  a front_end that also removes it from 
- * msg_global->host
+/** \ingroup m_host_management
+ *
+ * \brief Destroys a host
  */
 void __MSG_host_destroy(m_host_t host)
 {
   simdata_host_t simdata = NULL;
-  int i = 0;
 
-  xbt_assert0((host != NULL), "Invalid parameters");
+  xbt_assert((host != NULL), "Invalid parameters");
 
-  /* Clean Simulator data */
-   /* SIMIX host will be cleaned when MSG_clean calls SIMIX_clean */
+  /* Clean simulator data */
   simdata = (host)->simdata;
 
-  for (i = 0; i < msg_global->max_channel; i++)
-    xbt_fifo_free(simdata->mbox[i]);
-  free(simdata->mbox);
-  free(simdata->sleeping);
-	SIMIX_mutex_destroy(simdata->mutex);
+  if (msg_global->max_channel > 0)
+    free(simdata->mailboxes);
+
   free(simdata);
 
   /* Clean host structure */
   free(host->name);
   free(host);
-
-  return;
 }
 
 /** \ingroup m_host_management
@@ -151,7 +148,7 @@ void __MSG_host_destroy(m_host_t host)
  */
 int MSG_get_host_number(void)
 {
-  return (xbt_fifo_size(msg_global->host));
+  return host_lib->count;
 }
 
 /** \ingroup m_host_management
@@ -159,7 +156,23 @@ int MSG_get_host_number(void)
  */
 m_host_t *MSG_get_host_table(void)
 {
-  return ((m_host_t *)xbt_fifo_to_array(msg_global->host));
+      void **array;
+	  int i = 0;
+	  xbt_lib_cursor_t cursor;
+	  char *key;
+	  void **data;
+
+	  if (host_lib->count == 0)
+		return NULL;
+	  else
+		array = xbt_new0(void *, host_lib->count);
+
+	  xbt_lib_foreach(host_lib, cursor, key, data) {
+	    if(get_network_element_type(key) == SURF_NETWORK_ELEMENT_HOST)
+	    	array[i++] = data[MSG_HOST_LEVEL];
+	  }
+
+	  return (m_host_t *)array;
 }
 
 /** \ingroup m_host_management
@@ -168,10 +181,10 @@ m_host_t *MSG_get_host_table(void)
  */
 int MSG_get_host_msgload(m_host_t h)
 {
-  xbt_assert0((h!= NULL), "Invalid parameters");
-  xbt_assert0(0, "Not implemented yet");
+  xbt_assert((h != NULL), "Invalid parameters");
+  xbt_die( "Not implemented yet");
 
-  return(0);
+  return (0);
 }
 
 /** \ingroup m_host_management
@@ -180,18 +193,44 @@ int MSG_get_host_msgload(m_host_t h)
  */
 double MSG_get_host_speed(m_host_t h)
 {
-  xbt_assert0((h!= NULL), "Invalid parameters");
+  xbt_assert((h != NULL), "Invalid parameters");
+
+  return (SIMIX_req_host_get_speed(h->simdata->smx_host));
+}
+
+/** \ingroup m_host_management
+ * \brief Returns the value of a given host property
+ *
+ * \param host a host
+ * \param name a property name
+ * \return value of a property (or NULL if property not set)
+ */
+const char *MSG_host_get_property_value(m_host_t host, const char *name)
+{
+  return xbt_dict_get_or_null(MSG_host_get_properties(host), name);
+}
+
+/** \ingroup m_host_management
+ * \brief Returns a xbt_dynar_t consisting of the list of properties assigned to this host
+ *
+ * \param host a host
+ * \return a dict containing the properties
+ */
+xbt_dict_t MSG_host_get_properties(m_host_t host)
+{
+  xbt_assert((host != NULL), "Invalid parameters (host is NULL)");
 
-  return(SIMIX_host_get_speed(h->simdata->s_host));
+  return (SIMIX_req_host_get_properties(host->simdata->smx_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)
+int MSG_host_is_avail(m_host_t h)
 {
-  xbt_assert0((h!= NULL), "Invalid parameters");
-	return (SIMIX_host_get_state(h->simdata->s_host));
+  xbt_assert((h != NULL), "Invalid parameters (host is NULL)");
+  return (SIMIX_req_host_get_state(h->simdata->smx_host));
 }