JeVois  1.17
JeVois Smart Embedded Machine Vision Toolkit
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Async.H
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1 // ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
2 //
3 // JeVois Smart Embedded Machine Vision Toolkit - Copyright (C) 2021 by Laurent Itti, the University of Southern
4 // California (USC), and iLab at USC. See http://iLab.usc.edu and http://jevois.org for information about this project.
5 //
6 // This file is part of the JeVois Smart Embedded Machine Vision Toolkit. This program is free software; you can
7 // redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software
8 // Foundation, version 2. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
9 // without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
10 // License for more details. You should have received a copy of the GNU General Public License along with this program;
11 // if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
12 //
13 // Contact information: Laurent Itti - 3641 Watt Way, HNB-07A - Los Angeles, CA 90089-2520 - USA.
14 // Tel: +1 213 740 3527 - itti@pollux.usc.edu - http://iLab.usc.edu - http://jevois.org
15 // ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
16 /*! \file */
17 
18 #pragma once
19 
20 #include <future>
21 
22 namespace jevois
23 {
24  //! Async execution using a thread pool
25  /*! Same function signature and usage as std::async(). Always launches the task in a parallel thread, using a thread
26  pool. Runs the task on big (ARM A73) cores when using big.little CPU architecture of JeVois Pro Platform. Use this
27  function to launch parallel threads of high priority, e.g., machine vision algorithms. \ingroup types */
28  template <class Function, class... Args>
29  [[nodiscard]] std::future<std::invoke_result_t<std::decay_t<Function>, std::decay_t<Args>...>>
30  async(Function && f, Args &&... args);
31 
32  //! Async execution using a thread pool
33  /*! Same function signature and usage as std::async(). Always launches the task in a parallel thread, using a thread
34  pool. Runs the task on little (ARM A53) cores when using big.little CPU architecture of JeVois Pro Platform, or on
35  the same thread pool as jevois::async() on other architectures. Use this function to run threads that are not very
36  compute intensive, e.g., threads that may sleep most of the time until some condition has become
37  satisfied. \ingroup types */
38  template <class Function, class... Args>
39  [[nodiscard]] std::future<std::invoke_result_t<std::decay_t<Function>, std::decay_t<Args>...>>
40  async_little(Function && f, Args &&... args);
41 
42 } // namespace jevois
43 
44 // Include implementation details:
45 #include <jevois/Util/details/AsyncImpl.H>
jevois::async_little
std::future< std::invoke_result_t< std::decay_t< Function >, std::decay_t< Args >... > > async_little(Function &&f, Args &&... args)
Async execution using a thread pool.
jevois
Definition: Concepts.dox:1
jevois::async
std::future< std::invoke_result_t< std::decay_t< Function >, std::decay_t< Args >... > > async(Function &&f, Args &&... args)
Async execution using a thread pool.