trunk/branch integration: new files

Foundation/src/Mutex_VX.cpp

@@ -0,0 +1,90 @@
+//
+// Mutex_VX.cpp
+//
+// $Id: //poco/1.4/Foundation/src/Mutex_VX.cpp#1 $
+//
+// Library: Foundation
+// Package: Threading
+// Module:  Mutex
+//
+// Copyright (c) 2004-2011, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#include "Poco/Mutex_VX.h"
+#include <sysLib.h>
+
+
+namespace Poco {
+
+
+MutexImpl::MutexImpl()
+{
+        _sem = semMCreate(SEM_INVERSION_SAFE | SEM_Q_PRIORITY);
+        if (_sem == 0)
+                throw Poco::SystemException("cannot create mutex");
+}
+
+
+MutexImpl::MutexImpl(bool fast)
+{
+        if (fast)
+        {
+                _sem = semBCreate(SEM_Q_PRIORITY, SEM_FULL);
+        }
+        else
+        {
+                _sem = semMCreate(SEM_INVERSION_SAFE | SEM_Q_PRIORITY);
+        }
+        if (_sem == 0)
+                throw Poco::SystemException("cannot create mutex");
+}
+
+
+MutexImpl::~MutexImpl()
+{
+        semDelete(_sem);
+}
+
+
+bool MutexImpl::tryLockImpl(long milliseconds)
+{
+        int ticks = milliseconds*sysClkRateGet()/1000;
+        return semTake(_sem, ticks) == OK;
+}
+
+
+FastMutexImpl::FastMutexImpl(): MutexImpl(true)
+{
+}
+
+
+FastMutexImpl::~FastMutexImpl()
+{
+}
+
+
+} // namespace Poco