src/s4u/s4u_Io.cpp

   1 /* Copyright (c) 2018. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include "simgrid/s4u/Io.hpp"
   7 #include "simgrid/s4u/Storage.hpp"
   8 #include "src/kernel/activity/IoImpl.hpp"
   9 #include "xbt/log.h"
  10
  11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_io, s4u_activity, "S4U asynchronous IOs");
  12
  13 namespace simgrid {
  14 namespace s4u {
  15
  16 Activity* Io::start()
  17 {
  18   pimpl_ = simcall_io_start(size_, storage_);
  19   state_ = State::STARTED;
  20   return this;
  21 }
  22
  23 Activity* Io::cancel()
  24 {
  25   simgrid::simix::simcall([this] { dynamic_cast<kernel::activity::IoImpl*>(pimpl_.get())->cancel(); });
  26   state_ = State::CANCELED;
  27   return this;
  28 }
  29
  30 // Activity* Exec::wait()
  31 //{
  32 //  simcall_execution_wait(pimpl_);
  33 //  state_ = State::FINISHED;
  34 //  return this;
  35 //}
  36 //
  37 // Activity* Exec::wait(double timeout)
  38 //{
  39 //  THROW_UNIMPLEMENTED;
  40 //  return this;
  41 //}
  42 //
  43 ///** @brief Returns whether the state of the exec is finished */
  44 // bool Exec::test()
  45 //{
  46 //  xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED);
  47 //
  48 //  if (state_ == State::FINISHED)
  49 //    return true;
  50 //
  51 //  if (state_ == State::INITED)
  52 //    this->start();
  53 //
  54 //  if (simcall_execution_test(pimpl_)) {
  55 //    state_ = State::FINISHED;
  56 //    return true;
  57 //  }
  58 //
  59 //  return false;
  60 //}
  61
  62 /** @brief Returns the amount of flops that remain to be done */
  63 double Io::get_remaining()
  64 {
  65   return simgrid::simix::simcall(
  66       [this]() { return boost::static_pointer_cast<simgrid::kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
  67 }
  68
  69 // double Io::get_remaining_ratio()
  70 //{
  71 //  return simgrid::simix::simcall([this]() {
  72 //    return boost::static_pointer_cast<simgrid::kernel::activity::IoImpl>(pimpl_)->get_remaining_ratio();
  73 //  });
  74 //}
  75
  76 void intrusive_ptr_release(simgrid::s4u::Io* e)
  77 {
  78   if (e->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
  79     std::atomic_thread_fence(std::memory_order_acquire);
  80     delete e;
  81   }
  82 }
  83
  84 void intrusive_ptr_add_ref(simgrid::s4u::Io* e)
  85 {
  86   e->refcount_.fetch_add(1, std::memory_order_relaxed);
  87 }
  88 } // namespace s4u
  89 } // namespace simgrid