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::cancel()
  45 {
  46   kernel::actor::simcall([this] { pimpl_->cancel(); });
  47   complete(State::CANCELED);
  48   return this;
  49 }
  50
  51 Activity* Activity::suspend()
  52 {
  53   if (suspended_)
  54     return this; // Already suspended
  55   suspended_ = true;
  56
  57   if (state_ == State::STARTED)
  58     pimpl_->suspend();
  59
  60   return this;
  61 }
  62
  63 Activity* Activity::resume()
  64 {
  65   if (not suspended_)
  66     return this; // nothing to restore when it's not suspended
  67
  68   if (state_ == State::STARTED)
  69     pimpl_->resume();
  70
  71   return this;
  72 }
  73
  74 const char* Activity::get_state_str() const
  75 {
  76   return to_c_str(state_);
  77 }
  78
  79 double Activity::get_remaining() const
  80 {
  81   if (state_ == State::INITED || state_ == State::STARTING)
  82     return remains_;
  83   else
  84     return pimpl_->get_remaining();
  85 }
  86
  87 Activity* Activity::set_remaining(double remains)
  88 {
  89   xbt_assert(state_ == State::INITED, "Cannot change the remaining amount of work once the Activity is started");
  90   remains_ = remains;
  91   return this;
  92 }
  93
  94 } // namespace s4u
  95 } // namespace simgrid