Quelle race.cpp Sprache: C

//
// libsemigroups - C++ library for semigroups and monoids
// Copyright (C) 2019 James D. Mitchell
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//

// This file contains the implementation of the Race class template for
// competitively running different functions/methods in different threads, and
// obtaining the winner.
//

#include "libsemigroups/race.hpp"

#include <functional>  // for mem_fn
#include <thread>

#include "libsemigroups/exception.hpp"  // for LibsemigroupException
#include "libsemigroups/runner.hpp"     // for Runner

namespace libsemigroups {
  namespace detail {

    Race::~Race() = default;
    Race::Race()
        : _max_threads(std::thread::hardware_concurrency()),
          _mtx(),
          _winner(nullptr) {}

    void Race::add_runner(std::shared_ptr<Runner> r) {
      if (_winner != nullptr) {
        LIBSEMIGROUPS_EXCEPTION("the race is over, cannot add runners");
      }
      _runners.push_back(r);
    }

    void Race::run() {
      if (empty()) {
        LIBSEMIGROUPS_EXCEPTION("no runners given, cannot run");
      }
      run_func(std::mem_fn(&Runner::run));
    }

    void Race::run_for(std::chrono::nanoseconds x) {
      if (empty()) {
        LIBSEMIGROUPS_EXCEPTION("no runners given, cannot run_for");
      }
      run_func([&x](std::shared_ptr<Runner> r) -> void { r->run_for(x); });
    }
  }  // namespace detail
}  // namespace libsemigroups

quality100%

¤ Dauer der Verarbeitung: 0.15 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.