Merge branch 'hypervisor' of scm.gforge.inria.fr:/gitroot/simgrid/simgrid into hypervisor

[simgrid.git] / src / simdag / sd_link.c

diff --git a/src/simdag/sd_link.c b/src/simdag/sd_link.c
index 0edd95e..da64d74 100644 (file)
--- a/src/simdag/sd_link.c
+++ b/src/simdag/sd_link.c
@@ -1,26 +1,77 @@
+/* Copyright (c) 2006-2011. 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 "private.h"
 #include "simdag/simdag.h"
 #include "xbt/dict.h"
 #include "xbt/sysdep.h"
 #include "surf/surf.h"
+#include "surf/surf_resource.h"
+
 
 /* Creates a link and registers it in SD.
  */
-SD_link_t __SD_link_create(void *surf_link, void *data) {
-  SD_CHECK_INIT_DONE();
-  xbt_assert0(surf_link != NULL, "surf_link is NULL !");
+SD_link_t __SD_link_create(void *surf_link, void *data)
+{
 
+  SD_link_t link;
+  const char *name;
 
-  SD_link_t link = xbt_new0(s_SD_link_t, 1);
+  link = xbt_new(s_SD_link_t, 1);
   link->surf_link = surf_link;
-  link->data = data; /* user data */
+  link->data = data;            /* user data */
+  if (surf_workstation_model->extension.workstation.link_shared(surf_link))
+    link->sharing_policy = SD_LINK_SHARED;
+  else
+    link->sharing_policy = SD_LINK_FATPIPE;
 
-  const char *name = SD_link_get_name(link);
-  xbt_dict_set(sd_global->links, name, link, __SD_link_destroy); /* add the link to the dictionary */
+  name = SD_link_get_name(link);
+  xbt_lib_set(link_lib,name,SD_LINK_LEVEL,link);
 
   return link;
 }
 
+/**
+ * \brief Returns the link list
+ *
+ * Use SD_link_get_number() to know the array size.
+ *
+ * \return an array of \ref SD_link_t containing all links
+ * \see SD_link_get_number()
+ */
+const SD_link_t *SD_link_get_list(void)
+{
+
+  xbt_lib_cursor_t cursor;
+  char *key;
+  void **data;
+  int i;
+
+  if (sd_global->link_list == NULL) {   /* this is the first time the function is called */
+    sd_global->link_list = xbt_new(SD_link_t, xbt_lib_length(link_lib));
+
+    i = 0;
+    xbt_lib_foreach(link_lib, cursor, key, data) {
+        sd_global->link_list[i++] = (SD_link_t) data[SD_LINK_LEVEL];
+    }
+  }
+  return sd_global->link_list;
+}
+
+/**
+ * \brief Returns the number of links
+ *
+ * \return the number of existing links
+ * \see SD_link_get_list()
+ */
+int SD_link_get_number(void)
+{
+  return xbt_lib_length(link_lib);
+}
+
 /**
  * \brief Returns the user data of a link
  *
@@ -28,9 +79,8 @@ SD_link_t __SD_link_create(void *surf_link, void *data) {
  * \return the user data associated with this link (can be \c NULL)
  * \see SD_link_set_data()
  */
-void* SD_link_get_data(SD_link_t link) {
-  SD_CHECK_INIT_DONE();
-  xbt_assert0(link != NULL, "Invalid parameter");
+void *SD_link_get_data(SD_link_t link)
+{
   return link->data;
 }
 
@@ -44,9 +94,8 @@ void* SD_link_get_data(SD_link_t link) {
  * \param data the new data you want to associate with this link
  * \see SD_link_get_data()
  */
-void SD_link_set_data(SD_link_t link, void *data) {
-  SD_CHECK_INIT_DONE();
-  xbt_assert0(link != NULL, "Invalid parameter");
+void SD_link_set_data(SD_link_t link, void *data)
+{
   link->data = data;
 }
 
@@ -56,22 +105,21 @@ void SD_link_set_data(SD_link_t link, void *data) {
  * \param link a link
  * \return the name of this link (cannot be \c NULL)
  */
-const char* SD_link_get_name(SD_link_t link) {
-  SD_CHECK_INIT_DONE();
-  xbt_assert0(link != NULL, "Invalid parameter");
-  return surf_workstation_resource->extension_public->get_link_name(link->surf_link);
+const char *SD_link_get_name(SD_link_t link)
+{
+  return surf_resource_name(link->surf_link);
 }
 
 /**
  * \brief Returns the current bandwidth of a link
  *
  * \param link a link
- * \return the current bandwidth of this link, in Flops
+ * \return the current bandwidth of this link, in bytes per second
  */
-double SD_link_get_current_bandwidth(SD_link_t link) {
-  SD_CHECK_INIT_DONE();
-  xbt_assert0(link != NULL, "Invalid parameter");
-  return surf_workstation_resource->extension_public->get_link_bandwidth(link->surf_link);
+double SD_link_get_current_bandwidth(SD_link_t link)
+{
+  return surf_workstation_model->extension.workstation.
+      get_link_bandwidth(link->surf_link);
 }
 
 /**
@@ -80,18 +128,21 @@ double SD_link_get_current_bandwidth(SD_link_t link) {
  * \param link a link
  * \return the current latency of this link, in seconds
  */
-double SD_link_get_current_latency(SD_link_t link) {
-  SD_CHECK_INIT_DONE();
-  xbt_assert0(link != NULL, "Invalid parameter");
-  return surf_workstation_resource->extension_public->get_link_latency(link->surf_link);
+double SD_link_get_current_latency(SD_link_t link)
+{
+  return surf_workstation_model->extension.workstation.
+      get_link_latency(link->surf_link);
 }
 
-/* Destroys a link.
+/**
+ * \brief Returns the sharing policy of this workstation.
+ *
+ * \param link a link
+ * \return the sharing policyfor the flows going through this link:
+ * SD_LINK_SHARED or SD_LINK_FATPIPE
+ *
  */
-void __SD_link_destroy(void *link) {
-  SD_CHECK_INIT_DONE();
-  xbt_assert0(link != NULL, "Invalid parameter");
-  /* link->surf_link is freed by surf_exit and link->data is freed by the user */
-  xbt_free(link);
+e_SD_link_sharing_policy_t SD_link_get_sharing_policy(SD_link_t link)
+{
+  return link->sharing_policy;
 }
-