src/s4u/s4u_Io.cpp

   1 /* Copyright (c) 2018-2021. 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/Actor.hpp"
   7 #include "simgrid/s4u/Disk.hpp"
   8 #include "simgrid/s4u/Io.hpp"
   9 #include "src/kernel/activity/IoImpl.hpp"
  10 #include "xbt/log.h"
  11
  12 namespace simgrid {
  13 namespace s4u {
  14 xbt::signal<void(Io const&)> Io::on_start;
  15 xbt::signal<void(Io const&)> Io::on_completion;
  16
  17 Io::Io()
  18 {
  19   pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
  20 }
  21
  22 IoPtr Io::init()
  23 {
  24  return IoPtr(new Io());
  25 }
  26
  27 Io* Io::start()
  28 {
  29   kernel::actor::simcall([this] {
  30     (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_))
  31                   .set_name(get_name())
  32                   .set_disk(disk_->get_impl())
  33                   .set_size(size_)
  34                   .set_type(type_)
  35                   .start();
  36   });
  37
  38   if (suspended_)
  39     pimpl_->suspend();
  40
  41   state_ = State::STARTED;
  42   on_start(*this);
  43   return this;
  44 }
  45
  46 Io* Io::cancel()
  47 {
  48   simgrid::kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->cancel(); });
  49   state_ = State::CANCELED;
  50   return this;
  51 }
  52
  53 Io* Io::wait()
  54 {
  55   return this->wait_for(-1);
  56 }
  57
  58 Io* Io::wait_for(double timeout)
  59 {
  60   if (state_ == State::INITED)
  61     vetoable_start();
  62
  63   kernel::actor::ActorImpl* issuer = Actor::self()->get_impl();
  64   kernel::actor::simcall_blocking<void>([this, issuer, timeout] { this->get_impl()->wait_for(issuer, timeout); });
  65   state_ = State::FINISHED;
  66   this->release_dependencies();
  67
  68   on_completion(*this);
  69   return this;
  70 }
  71
  72 IoPtr Io::set_disk(sg_disk_t disk)
  73 {
  74   disk_ = disk;
  75   return this;
  76 }
  77
  78 IoPtr Io::set_size(sg_size_t size)
  79 {
  80   size_ = size;
  81   Activity::set_remaining(size_);
  82   return this;
  83 }
  84
  85 IoPtr Io::set_op_type(OpType type)
  86 {
  87   type_ = type;
  88   return this;
  89 }
  90
  91 /** @brief Returns the amount of flops that remain to be done */
  92 double Io::get_remaining() const
  93 {
  94   return kernel::actor::simcall(
  95       [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
  96 }
  97
  98 sg_size_t Io::get_performed_ioops() const
  99 {
 100   return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops();
 101 }
 102
 103 } // namespace s4u
 104 } // namespace simgrid