src/s4u/s4u_Activity.cpp

   1 /* Copyright (c) 2006-2021. 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 "xbt/log.h"
   7
   8 #include "simgrid/s4u/Activity.hpp"
   9 #include "simgrid/s4u/Engine.hpp"
  10 #include "src/kernel/activity/ActivityImpl.hpp"
  11
  12 XBT_LOG_EXTERNAL_CATEGORY(s4u);
  13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_activity, s4u, "S4U activities");
  14
  15 namespace simgrid {
  16 namespace s4u {
  17
  18 void Activity::wait_until(double time_limit)
  19 {
  20   double now = Engine::get_clock();
  21   if (time_limit > now)
  22     wait_for(time_limit - now);
  23 }
  24
  25 bool Activity::test()
  26 {
  27   xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::STARTING ||
  28              state_ == State::CANCELED || state_ == State::FINISHED);
  29
  30   if (state_ == State::CANCELED || state_ == State::FINISHED)
  31     return true;
  32
  33   if (state_ == State::INITED || state_ == State::STARTING)
  34     this->vetoable_start();
  35
  36   if (kernel::actor::simcall([this] { return this->get_impl()->test(); })) {
  37     complete(State::FINISHED);
  38     return true;
  39   }
  40
  41   return false;
  42 }
  43
  44 Activity* Activity::suspend()
  45 {
  46   if (suspended_)
  47     return this; // Already suspended
  48   suspended_ = true;
  49
  50   if (state_ == State::STARTED)
  51     pimpl_->suspend();
  52
  53   return this;
  54 }
  55
  56 Activity* Activity::resume()
  57 {
  58   if (not suspended_)
  59     return this; // nothing to restore when it's not suspended
  60
  61   if (state_ == State::STARTED)
  62     pimpl_->resume();
  63
  64   return this;
  65 }
  66
  67 const char* Activity::get_state_str() const
  68 {
  69   return to_c_str(state_);
  70 }
  71
  72 double Activity::get_remaining() const
  73 {
  74   if (state_ == State::INITED || state_ == State::STARTING)
  75     return remains_;
  76   else
  77     return pimpl_->get_remaining();
  78 }
  79
  80 Activity* Activity::set_remaining(double remains)
  81 {
  82   xbt_assert(state_ == State::INITED, "Cannot change the remaining amount of work once the Activity is started");
  83   remains_ = remains;
  84   return this;
  85 }
  86
  87 } // namespace s4u
  88 } // namespace simgrid