X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e1a5484101efbff9c8d982a0c4650f7953ee7e2f..617292a9ab55f5ead816de9f867d889f9a20734f:/include/simgrid/s4u/Io.hpp

diff --git a/include/simgrid/s4u/Io.hpp b/include/simgrid/s4u/Io.hpp
index 613705687a..c3118c357d 100644
--- a/include/simgrid/s4u/Io.hpp
+++ b/include/simgrid/s4u/Io.hpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2017-2021. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2017-2022. 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. */
@@ -20,7 +20,12 @@ namespace s4u {
  */
 
 class XBT_PUBLIC Io : public Activity_T<Io> {
+#ifndef DOXYGEN
   friend kernel::activity::IoImpl;
+  friend kernel::EngineImpl;
+#endif
+
+  static xbt::signal<void(Io const&)> on_start;
 
 protected:
   explicit Io(kernel::activity::IoImplPtr pimpl);
@@ -28,21 +33,25 @@ protected:
 public:
   enum class OpType { READ, WRITE };
 
-  static xbt::signal<void(Io const&)> on_start;
-  static xbt::signal<void(Io const&)> on_completion;
+  static void on_start_cb(const std::function<void(Io const&)>& cb) { on_start.connect(cb); }
 
   static IoPtr init();
   Io* start() override;
-  Io* wait() override;
-  Io* wait_for(double timeout) override;
-  Io* cancel() override;
+  /*! take a vector of s4u::IoPtr and return when one of them is finished.
+   * The return value is the rank of the first finished IoPtr. */
+  static ssize_t wait_any(const std::vector<IoPtr>& ios) { return wait_any_for(ios, -1); }
+  /*! Same as wait_any, but with a timeout. If the timeout occurs, parameter last is returned.*/
+  static ssize_t wait_any_for(const std::vector<IoPtr>& ios, double timeout);
 
   double get_remaining() const override;
   sg_size_t get_performed_ioops() const;
   IoPtr set_disk(const_sg_disk_t disk);
+  IoPtr set_priority(double priority);
   IoPtr set_size(sg_size_t size);
   IoPtr set_op_type(OpType type);
 
+  IoPtr update_priority(double priority);
+
   bool is_assigned() const override;
 };