Enable setting a specific data copy callback to any comm

[simgrid.git] / include / simgrid / s4u / Io.hpp

diff --git a/include/simgrid/s4u/Io.hpp b/include/simgrid/s4u/Io.hpp
index a0108a8..1e7825b 100644 (file)
--- a/include/simgrid/s4u/Io.hpp
+++ b/include/simgrid/s4u/Io.hpp
@@ -21,9 +21,13 @@ namespace s4u {
 
 class XBT_PUBLIC Io : public Activity_T<Io> {
 #ifndef DOXYGEN
-  friend Disk;    // Factory of IOs
+  friend kernel::activity::IoImpl;
 #endif
-  Io();
+
+protected:
+  explicit Io(kernel::activity::IoImplPtr pimpl);
+
+  void complete(Activity::State state) override;
 
 public:
   enum class OpType { READ, WRITE };
@@ -33,9 +37,11 @@ public:
 
   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;