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_name(const std::string& name)
  22 {
  23   ActivityImpl::set_name(name);
  24   return *this;
  25 }
  26
  27 SleepImpl& SleepImpl::set_host(s4u::Host* host)
  28 {
  29   host_ = host;
  30   return *this;
  31 }
  32
  33 SleepImpl& SleepImpl::set_duration(double duration)
  34 {
  35   duration_ = duration;
  36   return *this;
  37 }
  38
  39 SleepImpl* SleepImpl::start()
  40 {
  41   surf_action_ = host_->pimpl_cpu->sleep(duration_);
  42   surf_action_->set_data(this);
  43   XBT_DEBUG("Create sleep synchronization %p", this);
  44   return this;
  45 }
  46
  47 void SleepImpl::post()
  48 {
  49   while (not simcalls_.empty()) {
  50     smx_simcall_t simcall = simcalls_.front();
  51     simcalls_.pop_front();
  52     e_smx_state_t result;
  53     if (host_ && not host_->is_on()) {
  54       /* If the host running the synchro failed, notice it. This way, the asking
  55        * actor can be killed if it runs on that host itself */
  56       result = SIMIX_SRC_HOST_FAILURE;
  57       simcall->issuer->throw_exception(
  58           std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed")));
  59     }
  60
  61     switch (surf_action_->get_state()) {
  62       case resource::Action::State::FAILED:
  63         simcall->issuer->context_->iwannadie = true;
  64         result                               = SIMIX_FAILED;
  65         break;
  66
  67       case resource::Action::State::FINISHED:
  68         result = SIMIX_DONE;
  69         break;
  70
  71       default:
  72         THROW_IMPOSSIBLE;
  73     }
  74     if (not simcall->issuer->get_host()->is_on()) {
  75       simcall->issuer->context_->iwannadie = true;
  76     }
  77     simcall_process_sleep__set__result(simcall, result);
  78     simcall->issuer->waiting_synchro = nullptr;
  79     if (simcall->issuer->is_suspended()) {
  80       XBT_DEBUG("Wait! This process is suspended and can't wake up now.");
  81       simcall->issuer->suspended_ = false;
  82       simcall_HANDLER_process_suspend(simcall, simcall->issuer);
  83     } else {
  84       SIMIX_simcall_answer(simcall);
  85     }
  86   }
  87   SIMIX_process_sleep_destroy(this);
  88 }
  89 void SleepImpl::finish()
  90 {
  91   /* FIXME some part of post should move to finish */
  92 }
  93 } // namespace activity
  94 } // namespace kernel
  95 } // namespace simgrid