Mercurial > octave
view liboctave/util/oct-mutex.h @ 31529:918e09edc6ed stable
Export typeinfo of base_mutex and autolock classes.
* liboctave/util/oct-mutex.h (base_mutex, autolock): Add API attribute to class
definitions.
author | Markus Mützel <markus.muetzel@gmx.de> |
---|---|
date | Thu, 24 Nov 2022 14:11:47 +0100 |
parents | 796f54d4ddbf |
children | e88a07dec498 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2008-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave 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. // // Octave 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 Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if ! defined (octave_oct_mutex_h) #define octave_oct_mutex_h 1 #include "octave-config.h" #include <memory> namespace octave { class mutex; class OCTAVE_API base_mutex { public: friend class mutex; base_mutex (void) = default; virtual ~base_mutex (void) = default; virtual void lock (void); virtual void unlock (void); virtual bool try_lock (void); }; class OCTAVE_API mutex { public: mutex (void); mutex (const mutex& m) = default; ~mutex (void) = default; mutex& operator = (const mutex& m) = default; void lock (void) { m_rep->lock (); } void unlock (void) { m_rep->unlock (); } bool try_lock (void) { return m_rep->try_lock (); } protected: std::shared_ptr<base_mutex> m_rep; }; class OCTAVE_API autolock { public: autolock (const mutex& m, bool block = true) : m_mutex (m), m_lock_result (false) { if (block) { m_mutex.lock (); m_lock_result = true; } else m_lock_result = m_mutex.try_lock (); } // No copying. autolock (const autolock&) = delete; autolock& operator = (const autolock&) = delete; ~autolock (void) { if (m_lock_result) m_mutex.unlock (); } bool ok (void) const { return m_lock_result; } operator bool (void) const { return ok (); } private: mutex m_mutex; bool m_lock_result; }; class OCTAVE_API thread { public: static void init (void); static bool is_thread (void); }; } #endif