Mercurial > hg > orthanc-wsi
diff Framework/MultiThreading/Semaphore.h @ 151:fb8d4cd2f618
fix applications
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Tue, 17 Jul 2018 10:06:39 +0200 |
parents | Framework/Semaphore.h@442102e14933 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/MultiThreading/Semaphore.h Tue Jul 17 10:06:39 2018 +0200 @@ -0,0 +1,61 @@ +/** + * Orthanc - A Lightweight, RESTful DICOM Store + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2018 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero 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 + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#pragma once + +#include <boost/noncopyable.hpp> +#include <boost/thread.hpp> + +namespace OrthancWSI +{ + class Semaphore : public boost::noncopyable + { + private: + unsigned int count_; + boost::mutex mutex_; + boost::condition_variable condition_; + + public: + explicit Semaphore(unsigned int count); + + void Release(); + + void Acquire(); + + class Locker : public boost::noncopyable + { + private: + Semaphore& that_; + + public: + explicit Locker(Semaphore& that) : + that_(that) + { + that_.Acquire(); + } + + ~Locker() + { + that_.Release(); + } + }; + }; +}