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, 112 insertions, 0 deletions

diff --git a/salhelper/source/dynload.cxx b/salhelper/source/dynload.cxx
new file mode 100644
index 000000000..d3b8e70fb
--- /dev/null
+++ b/salhelper/source/dynload.cxx
@@ -0,0 +1,112 @@
+/* -*- 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/dynload.hxx>
+
+namespace salhelper
+{
+
+typedef void* (*ApiInitFunction) ();
+
+ORealDynamicLoader::ORealDynamicLoader(ORealDynamicLoader ** ppSetToZeroInDestructor_,
+                       const OUString& moduleName,
+                       const OUString& initFunction,
+                       void* pApi,
+                       oslModule pModule)
+    : m_pApi(pApi)
+    , m_refCount(1)
+    , m_pModule(pModule)
+    , m_strModuleName(moduleName)
+    , m_strInitFunction(initFunction)
+    , ppSetToZeroInDestructor( ppSetToZeroInDestructor_ )
+{
+}
+
+ORealDynamicLoader* ORealDynamicLoader::newInstance(ORealDynamicLoader ** ppSetToZeroInDestructor,
+                                  const OUString& moduleName,
+                                  const OUString& initFunction)
+{
+#ifdef DISABLE_DYNLOADING
+    (void) ppSetToZeroInDestructor;
+    (void) moduleName;
+    (void) initFunction;
+
+    return NULL;
+#else
+    ApiInitFunction initFunc;
+    oslModule pModule = osl_loadModule(moduleName.pData, SAL_LOADMODULE_DEFAULT);
+
+    if ( !pModule )
+    {
+        return nullptr;
+    }
+
+    initFunc = reinterpret_cast<ApiInitFunction>(osl_getFunctionSymbol(
+        pModule, initFunction.pData));
+
+    if ( !initFunc )
+    {
+        osl_unloadModule(pModule);
+        return nullptr;
+    }
+
+    return(new ORealDynamicLoader(ppSetToZeroInDestructor, moduleName,
+                                 initFunction,
+                                 initFunc(),
+                                 pModule));
+#endif
+}
+
+ORealDynamicLoader::~ORealDynamicLoader()
+{
+    // set the address to zero
+    if( ppSetToZeroInDestructor )
+        *ppSetToZeroInDestructor = nullptr;
+
+    if (m_pModule)
+    {
+#ifndef DISABLE_DYNLOADING
+        osl_unloadModule(m_pModule);
+#endif
+        m_pModule = nullptr;
+    }
+}
+
+sal_uInt32 ORealDynamicLoader::acquire()
+{
+    return ++m_refCount;
+}
+
+sal_uInt32 ORealDynamicLoader::release()
+{
+    sal_uInt32 nRet = --m_refCount;
+    if( nRet == 0 )
+        delete this;
+    return nRet;
+}
+
+
+void* ORealDynamicLoader::getApi() const
+{
+    return m_pApi;
+}
+
+} // namespace salhelper
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */