Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 130 insertions, 0 deletions

diff --git a/salhelper/source/condition.cxx b/salhelper/source/condition.cxx
new file mode 100644
index 000000000..9f1408deb
--- /dev/null
+++ b/salhelper/source/condition.cxx
@@ -0,0 +1,130 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <salhelper/condition.hxx>
+#include <osl/time.h>
+#include <osl/mutex.hxx>
+
+using namespace salhelper;
+
+
+/******************************************************************
+ *                                                                *
+ *                     Condition                                  *
+ *                                                                *
+ ******************************************************************/
+
+Condition::Condition(osl::Mutex& aMutex)
+    : m_aMutex(aMutex)
+{
+}
+
+
+Condition::~Condition()
+{
+}
+
+
+/******************************************************************
+ *                                                                *
+ *              ConditionModifier                                 *
+ *                                                                *
+ ******************************************************************/
+
+ConditionModifier::ConditionModifier(Condition& aCond)
+    : m_aCond(aCond)
+{
+    m_aCond.m_aMutex.acquire();
+}
+
+
+ConditionModifier::~ConditionModifier()
+{
+    if(m_aCond.applies())
+        m_aCond.m_aCondition.set();
+
+    m_aCond.m_aMutex.release();
+}
+
+
+/******************************************************************
+ *                                                                *
+ *              ConditionWaiter                                   *
+ *                                                                *
+ ******************************************************************/
+
+ConditionWaiter::timedout::timedout() {}
+
+ConditionWaiter::timedout::timedout(timedout const &) {}
+
+ConditionWaiter::timedout::~timedout() {}
+
+ConditionWaiter::timedout &
+ConditionWaiter::timedout::operator =(timedout const &) { return *this; }
+
+ConditionWaiter::ConditionWaiter(Condition& aCond)
+    : m_aCond(aCond)
+{
+    while(true) {
+        m_aCond.m_aCondition.wait();
+        m_aCond.m_aMutex.acquire();
+
+        if(m_aCond.applies())
+            break;
+        else {
+            m_aCond.m_aCondition.reset();
+            m_aCond.m_aMutex.release();
+        }
+    }
+}
+
+
+ConditionWaiter::ConditionWaiter(Condition& aCond,sal_uInt32 milliSec)
+    : m_aCond(aCond)
+{
+    TimeValue aTime;
+    aTime.Seconds = milliSec / 1000;
+    aTime.Nanosec = 1000000 * ( milliSec % 1000 );
+
+    while(true) {
+        if( m_aCond.m_aCondition.wait(&aTime) ==
+            osl::Condition::result_timeout )
+            throw timedout();
+
+        m_aCond.m_aMutex.acquire();
+
+        if(m_aCond.applies())
+            break;
+        else {
+            m_aCond.m_aCondition.reset();
+            m_aCond.m_aMutex.release();
+        }
+    }
+}
+
+
+ConditionWaiter::~ConditionWaiter()
+{
+    if(! m_aCond.applies())
+        m_aCond.m_aCondition.reset();
+    m_aCond.m_aMutex.release();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */