src/kernel/activity/SleepImpl.cpp

   1 /* Copyright (c) 2007-2019. 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_data(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_ = SIMIX_SRC_HOST_FAILURE;
  46     else
  47       state_ = SIMIX_CANCELED;
  48   } else if (surf_action_->get_state() == resource::Action::State::FINISHED) {
  49     state_ = SIMIX_DONE;
  50   }
  51   finish();
  52 }
  53
  54 void SleepImpl::finish()
  55 {
  56   while (not simcalls_.empty()) {
  57     smx_simcall_t simcall = simcalls_.front();
  58     simcalls_.pop_front();
  59     if (state_ == SIMIX_SRC_HOST_FAILURE) {
  60       /* If the host running the synchro failed, notice it. This way, the asking
  61        * actor can be killed if it runs on that host itself */
  62       simcall->issuer->context_->iwannadie = true;
  63       simcall->issuer->exception_ = std::make_exception_ptr(HostFailureException(XBT_THROW_POINT, "Host failed"));
  64     }
  65
  66     simcall_process_sleep__set__result(simcall, state_);
  67     simcall->issuer->waiting_synchro = nullptr;
  68     if (simcall->issuer->is_suspended()) {
  69       XBT_DEBUG("Wait! This process is suspended and can't wake up now.");
  70       simcall->issuer->suspended_ = false;
  71       simcall_HANDLER_process_suspend(simcall, simcall->issuer);
  72     } else {
  73       SIMIX_simcall_answer(simcall);
  74     }
  75   }
  76   SIMIX_process_sleep_destroy(this);
  77 }
  78 } // namespace activity
  79 } // namespace kernel
  80 } // namespace simgrid