X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/8885dc88b96967757ee901950a7f9b8eef96bc6f..808bc801011b8291383a7fb87669eb67f46f3a07:/include/simgrid/s4u/comm.hpp

diff --git a/include/simgrid/s4u/comm.hpp b/include/simgrid/s4u/comm.hpp
index 2929750de8..ecb1e096c2 100644
--- a/include/simgrid/s4u/comm.hpp
+++ b/include/simgrid/s4u/comm.hpp
@@ -1,5 +1,4 @@
-/* Copyright (c) 2006-2015. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2006-2016. 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. */
@@ -12,10 +11,13 @@
 #include <simgrid/s4u/Activity.hpp>
 #include <simgrid/s4u/forward.hpp>
 #include <simgrid/s4u/mailbox.hpp>
+#include <simgrid/forward.h>
+
 
 namespace simgrid {
 namespace s4u {
 
+
 /** @brief Communication async
  *
  * Represents all asynchronous communications, that you can test or wait onto.
@@ -26,6 +28,55 @@ public:
   ~Comm() override;
 
 public:
+  
+  /*! take a range of s4u::Comm* (last excluded) and return when one of them is finished. The return value is an iterator on the finished Comms. */
+  template<class I> static
+  I wait_any(I first, I last)
+  {
+    // Map to dynar<Synchro*>:
+    xbt_dynar_t comms = xbt_dynar_new(sizeof(simgrid::kernel::activity::Synchro*), NULL);
+    for(I iter = first; iter != last; iter++) {
+      Comm& comm = **iter;
+      if (comm.state_ == inited)
+        comm.start();
+      xbt_assert(comm.state_ == started);
+      xbt_dynar_push_as(comms, simgrid::kernel::activity::Synchro*, comm.pimpl_);
+    }
+    // Call the underlying simcall:
+    int idx = simcall_comm_waitany(comms, -1);
+    xbt_dynar_free(&comms);
+    // Not found:
+    if (idx == -1)
+      return last;
+    // Lift the index to the corresponding iterator:
+    auto res = std::next(first, idx);
+    (*res)->state_ = finished;
+    return res;
+  }
+  /*! Same as wait_any, but with a timeout. If wait_any_for return because of the timeout last is returned.*/
+  template<class I> static
+  I wait_any_for(I first, I last, double timeout)
+  {
+    // Map to dynar<Synchro*>:
+    xbt_dynar_t comms = xbt_dynar_new(sizeof(simgrid::kernel::activity::Synchro*), NULL);
+    for(I iter = first; iter != last; iter++) {
+      Comm& comm = **iter;
+      if (comm.state_ == inited)
+        comm.start();
+      xbt_assert(comm.state_ == started);
+      xbt_dynar_push_as(comms, simgrid::kernel::activity::Synchro*, comm.pimpl_);
+    }
+    // Call the underlying simcall:
+    int idx = simcall_comm_waitany(comms, timeout);
+    xbt_dynar_free(&comms);
+    // Not found:
+    if (idx == -1)
+      return last;
+    // Lift the index to the corresponding iterator:
+    auto res = std::next(first, idx);
+    (*res)->state_ = finished;
+    return res;
+  }
   /** Creates (but don't start) an async send to the mailbox @p dest */
   static Comm &send_init(Mailbox &dest);
   /** Creates and start an async send to the mailbox @p dest */