--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Resources/Graveyard/Multithreading/Mutex.cpp	Sat May 19 16:40:26 2018 +0200
@@ -0,0 +1,122 @@
+/**
+ * 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 General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * 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/>.
+ **/
+
+
+#include "../PrecompiledHeaders.h"
+#include "Mutex.h"
+
+#include "../OrthancException.h"
+
+#if defined(_WIN32)
+#include <windows.h>
+#elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+#include <pthread.h>
+#else
+#error Support your platform here
+#endif
+
+namespace Orthanc
+{
+#if defined (_WIN32)
+
+  struct Mutex::PImpl
+  {
+    CRITICAL_SECTION criticalSection_;
+  };
+
+  Mutex::Mutex()
+  {
+    pimpl_ = new PImpl;
+    ::InitializeCriticalSection(&pimpl_->criticalSection_);
+  }
+
+  Mutex::~Mutex()
+  {
+    ::DeleteCriticalSection(&pimpl_->criticalSection_);
+    delete pimpl_;
+  }
+
+  void Mutex::Lock()
+  {
+    ::EnterCriticalSection(&pimpl_->criticalSection_);
+  }
+
+  void Mutex::Unlock()
+  {
+    ::LeaveCriticalSection(&pimpl_->criticalSection_);
+  }
+
+
+#elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+
+  struct Mutex::PImpl
+  {
+    pthread_mutex_t mutex_;
+  };
+
+  Mutex::Mutex()
+  {
+    pimpl_ = new PImpl;
+
+    if (pthread_mutex_init(&pimpl_->mutex_, NULL) != 0)
+    {
+      delete pimpl_;
+      throw OrthancException(ErrorCode_InternalError);
+    }
+  }
+
+  Mutex::~Mutex()
+  {
+    pthread_mutex_destroy(&pimpl_->mutex_);
+    delete pimpl_;
+  }
+
+  void Mutex::Lock()
+  {
+    if (pthread_mutex_lock(&pimpl_->mutex_) != 0)
+    {
+      throw OrthancException(ErrorCode_InternalError);    
+    }
+  }
+
+  void Mutex::Unlock()
+  {
+    if (pthread_mutex_unlock(&pimpl_->mutex_) != 0)
+    {
+      throw OrthancException(ErrorCode_InternalError);    
+    }
+  }
+
+#else
+#error Support your plateform here
+#endif
+}