X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/50ddfe2f5b5035e0ed9556b334d6977ee81ff83a..f71d97e36f0e6bfb6e03ff1c630ce020a74f943a:/src/s4u/s4u_Io.cpp

diff --git a/src/s4u/s4u_Io.cpp b/src/s4u/s4u_Io.cpp
index 88d78a7040..aec4f16d51 100644
--- a/src/s4u/s4u_Io.cpp
+++ b/src/s4u/s4u_Io.cpp
@@ -1,78 +1,111 @@
-/* Copyright (c) 2018. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2018-2021. 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. */
 
+#include "simgrid/s4u/Actor.hpp"
+#include "simgrid/s4u/Disk.hpp"
 #include "simgrid/s4u/Io.hpp"
-#include "simgrid/s4u/Storage.hpp"
 #include "src/kernel/activity/IoImpl.hpp"
-#include "src/simix/smx_io_private.hpp"
+#include "src/kernel/actor/ActorImpl.hpp"
 #include "xbt/log.h"
 
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_io, s4u_activity, "S4U asynchronous IOs");
-
 namespace simgrid {
 namespace s4u {
+xbt::signal<void(Io const&)> Io::on_start;
+xbt::signal<void(Io const&)> Io::on_completion;
+
+Io::Io()
+{
+  pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
+}
 
-Activity* Io::start()
+IoPtr Io::init()
 {
-  set_remaining(size_);
-  pimpl_ = simix::simcall([this] { return SIMIX_io_start(name_, size_, storage_, type_); });
+ return IoPtr(new Io());
+}
+
+Io* Io::start()
+{
+  kernel::actor::simcall([this] {
+    (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_))
+                  .set_name(get_name())
+                  .set_disk(disk_->get_impl())
+                  .set_size(size_)
+                  .set_type(type_)
+                  .start();
+  });
+
+  if (suspended_)
+    pimpl_->suspend();
+
   state_ = State::STARTED;
+  on_start(*this);
   return this;
 }
 
-Activity* Io::cancel()
+Io* Io::cancel()
 {
-  simgrid::simix::simcall([this] { dynamic_cast<kernel::activity::IoImpl*>(pimpl_.get())->cancel(); });
+  simgrid::kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->cancel(); });
   state_ = State::CANCELED;
+  on_completion(*this);
   return this;
 }
 
-Activity* Io::wait()
+Io* Io::wait()
 {
-  simcall_io_wait(pimpl_);
-  state_ = State::FINISHED;
-  return this;
+  return this->wait_for(-1);
 }
 
-Activity* Io::wait(double timeout)
+Io* Io::wait_for(double timeout)
 {
-  THROW_UNIMPLEMENTED;
+  if (state_ == State::INITED)
+    vetoable_start();
+
+  kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
+  kernel::actor::simcall_blocking([this, issuer, timeout] { this->get_impl()->wait_for(issuer, timeout); });
+  state_ = State::FINISHED;
+  this->release_dependencies();
+
+  on_completion(*this);
   return this;
 }
 
-/** @brief Returns the amount of flops that remain to be done */
-double Io::get_remaining()
+IoPtr Io::set_disk(sg_disk_t disk)
 {
-  return simgrid::simix::simcall(
-      [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
+  disk_ = disk;
+
+  // Setting the disk may allow to start the activity, let's try
+  if (state_ == State::STARTING)
+    vetoable_start();
+
+ return this;
 }
 
-sg_size_t Io::get_performed_ioops()
+IoPtr Io::set_size(sg_size_t size)
 {
-  return simgrid::simix::simcall(
-      [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops(); });
+  size_ = size;
+  Activity::set_remaining(size_);
+  return this;
 }
 
-IoPtr Io::set_io_type(OpType type)
+IoPtr Io::set_op_type(OpType type)
 {
-  xbt_assert(state_ == State::INITED, "Cannot change the name of an exec after its start");
   type_ = type;
   return this;
 }
 
-void intrusive_ptr_release(simgrid::s4u::Io* i)
+/** @brief Returns the amount of flops that remain to be done */
+double Io::get_remaining() const
 {
-  if (i->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
-    std::atomic_thread_fence(std::memory_order_acquire);
-    delete i;
-  }
+  return kernel::actor::simcall(
+      [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
 }
 
-void intrusive_ptr_add_ref(simgrid::s4u::Io* i)
+sg_size_t Io::get_performed_ioops() const
 {
-  i->refcount_.fetch_add(1, std::memory_order_relaxed);
+  return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops();
 }
+
 } // namespace s4u
 } // namespace simgrid