src/kernel/activity/SleepImpl.cpp

   1 /* Copyright (c) 2007-2021. 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 "src/kernel/activity/SleepImpl.hpp"
   7 #include "simgrid/Exception.hpp"
   8 #include "simgrid/kernel/resource/Action.hpp"
   9 #include "simgrid/s4u/Host.hpp"
  10 #include "src/kernel/context/Context.hpp"
  11 #include "src/simix/popping_private.hpp"
  12 #include "src/simix/smx_private.hpp"
  13 #include "src/surf/cpu_interface.hpp"
  14 #include "src/surf/surf_interface.hpp"
  15
  16 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_process);
  17 namespace simgrid {
  18 namespace kernel {
  19 namespace activity {
  20
  21 SleepImpl& SleepImpl::set_host(s4u::Host* host)
  22 {
  23   host_ = host;
  24   return *this;
  25 }
  26
  27 SleepImpl& SleepImpl::set_duration(double duration)
  28 {
  29   duration_ = duration;
  30   return *this;
  31 }
  32
  33 SleepImpl* SleepImpl::start()
  34 {
  35   surf_action_ = host_->pimpl_cpu->sleep(duration_);
  36   surf_action_->set_activity(this);
  37   XBT_DEBUG("Create sleep synchronization %p", this);
  38   return this;
  39 }
  40
  41 void SleepImpl::post()
  42 {
  43   if (surf_action_->get_state() == resource::Action::State::FAILED) {
  44     if (host_ && not host_->is_on())
  45       state_ = State::SRC_HOST_FAILURE;
  46     else
  47       state_ = State::CANCELED;
  48   } else if (surf_action_->get_state() == resource::Action::State::FINISHED) {
  49     state_ = State::DONE;
  50   }
  51
  52   clean_action();
  53   /* Answer all simcalls associated with the synchro */
  54   finish();
  55 }
  56
  57 void SleepImpl::finish()
  58 {
  59   while (not simcalls_.empty()) {
  60     const s_smx_simcall* simcall = simcalls_.front();
  61     simcalls_.pop_front();
  62
  63     simcall->issuer_->waiting_synchro_ = nullptr;
  64     if (simcall->issuer_->is_suspended()) {
  65       XBT_DEBUG("Wait! This process is suspended and can't wake up now.");
  66       simcall->issuer_->suspended_ = false;
  67       simcall->issuer_->suspend();
  68     } else {
  69       simcall->issuer_->simcall_answer();
  70     }
  71   }
  72 }
  73 } // namespace activity
  74 } // namespace kernel
  75 } // namespace simgrid