X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/48eccb2c1532e35819830ca56fad7cf89887359f..4fd0a2b6cf055692f936e29294496d14a6091ff1:/include/simgrid/s4u/mailbox.hpp

diff --git a/include/simgrid/s4u/mailbox.hpp b/include/simgrid/s4u/mailbox.hpp
index 387f63b6d8..3d1b6abd2e 100644
--- a/include/simgrid/s4u/mailbox.hpp
+++ b/include/simgrid/s4u/mailbox.hpp
@@ -33,7 +33,7 @@ public:
   ~Mailbox();
   
 protected:
-  smx_mailbox_t getInferior() { return inferior_; }
+  smx_mailbox_t getInferior() { return pimpl_; }
 
 public:
   /** Get the name of that mailbox */
@@ -43,10 +43,20 @@ public:
   /** Returns whether the mailbox contains queued communications */
   bool empty();
 
+  /** Declare that the specified process is a permanent receiver on that mailbox
+   *
+   * It means that the communications sent to this mailbox will start flowing to its host even before he does a recv().
+   * This models the real behavior of TCP and MPI communications, amongst other.
+   */
+  void setReceiver(smx_process_t process);
+  /** Return the process declared as permanent receiver, or nullptr if none **/
+  smx_process_t receiver();
+
 private:
   std::string name_;
-  smx_mailbox_t inferior_;
+  smx_mailbox_t pimpl_;
   static boost::unordered_map<std::string, Mailbox *> *mailboxes;
+  friend s4u::Engine;
 };
 }} // namespace simgrid::s4u
 
@@ -54,5 +64,7 @@ private:
 
 XBT_PUBLIC(sg_mbox_t) sg_mbox_by_name(const char*name);
 XBT_PUBLIC(int) sg_mbox_is_empty(sg_mbox_t mbox);
+XBT_PUBLIC(void)sg_mbox_setReceiver(sg_mbox_t mbox, smx_process_t process);
+XBT_PUBLIC(smx_process_t) sg_mbox_receiver(sg_mbox_t mbox);
 
 #endif /* SIMGRID_S4U_MAILBOX_HPP */