X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3e6d3cb8a7c052c3cfacf968a5d9d01ac581592f..e2d3cb7c869ece98836a275af3bafc4fe487e08b:/include/simgrid/s4u/Link.hpp

diff --git a/include/simgrid/s4u/Link.hpp b/include/simgrid/s4u/Link.hpp
index 89f4f792d4..552d57aa6f 100644
--- a/include/simgrid/s4u/Link.hpp
+++ b/include/simgrid/s4u/Link.hpp
@@ -63,7 +63,20 @@ public:
   /** @brief Describes how the link is shared between flows */
   SharingPolicy get_sharing_policy() const;
 
-  /** @brief Returns the current load (in flops per second) */
+  /** @brief Set the level of communication speed of the given host on this wifi link.
+   *
+   * The bandwidth of a wifi link for a given host depends on its SNR (signal to noise ratio),
+   * which ultimately depends on the distance between the host and the station and the material between them.
+   *
+   * This is modeled in SimGrid by providing several bandwidths to wifi links, one per SNR level (just provide
+   * comma-separated values in the XML file). By default, the first level in the list is used, but you can use the
+   * current function to specify that a given host uses another level of bandwidth. This can be used to take the
+   * location of hosts into account, or even to model mobility in your SimGrid simulation.
+   *
+   * Note that this function asserts that the link is actually a wifi link */
+  void set_host_wifi_rate(s4u::Host* host, int level);
+
+  /** @brief Returns the current load (in bytes per second) */
   double get_usage() const;
 
   /** @brief Check if the Link is used (at least one flow uses the link) */