src/kernel/activity/IoImpl.cpp

   1 /* Copyright (c) 2007-2018. 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 "src/kernel/activity/IoImpl.hpp"
   7 #include "simgrid/kernel/resource/Action.hpp"
   8 #include "src/simix/smx_io_private.hpp"
   9
  10 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_io);
  11
  12 simgrid::kernel::activity::IoImpl::IoImpl(std::string name, resource::Action* surf_action, s4u::Storage* storage)
  13     : ActivityImpl(name), storage_(storage), surf_action_(surf_action)
  14 {
  15   this->state_ = SIMIX_RUNNING;
  16
  17   surf_action_->set_data(this);
  18
  19   XBT_DEBUG("Create io %p", this);
  20 }
  21
  22 simgrid::kernel::activity::IoImpl::~IoImpl()
  23 {
  24   if (surf_action_ != nullptr)
  25     surf_action_->unref();
  26   XBT_DEBUG("Destroy io %p", this);
  27 }
  28
  29 void simgrid::kernel::activity::IoImpl::cancel()
  30 {
  31   XBT_VERB("This exec %p is canceled", this);
  32   if (surf_action_ != nullptr)
  33     surf_action_->cancel();
  34 }
  35
  36 void simgrid::kernel::activity::IoImpl::suspend()
  37 {
  38   if (surf_action_ != nullptr)
  39     surf_action_->suspend();
  40 }
  41
  42 void simgrid::kernel::activity::IoImpl::resume()
  43 {
  44   if (surf_action_ != nullptr)
  45     surf_action_->resume();
  46 }
  47
  48 double simgrid::kernel::activity::IoImpl::get_remaining()
  49 {
  50   return surf_action_ ? surf_action_->get_remains() : 0;
  51 }
  52
  53 void simgrid::kernel::activity::IoImpl::post()
  54 {
  55   performed_ioops_ = surf_action_->get_cost();
  56   switch (surf_action_->get_state()) {
  57     case simgrid::kernel::resource::Action::State::FAILED:
  58       state_ = SIMIX_FAILED;
  59       break;
  60     case simgrid::kernel::resource::Action::State::FINISHED:
  61       state_ = SIMIX_DONE;
  62       break;
  63     default:
  64       THROW_IMPOSSIBLE;
  65       break;
  66   }
  67   on_completion(this);
  68
  69   SIMIX_io_finish(this);
  70 }
  71 /*************
  72  * Callbacks *
  73  *************/
  74 simgrid::xbt::signal<void(simgrid::kernel::activity::IoImplPtr)> simgrid::kernel::activity::IoImpl::on_creation;
  75 simgrid::xbt::signal<void(simgrid::kernel::activity::IoImplPtr)> simgrid::kernel::activity::IoImpl::on_completion;