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, 144 insertions, 0 deletions

diff --git a/cppu/source/UnsafeBridge/UnsafeBridge.cxx b/cppu/source/UnsafeBridge/UnsafeBridge.cxx
new file mode 100644
index 000000000..491a888c3
--- /dev/null
+++ b/cppu/source/UnsafeBridge/UnsafeBridge.cxx
@@ -0,0 +1,144 @@
+/* -*- 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 <osl/mutex.hxx>
+#include <osl/thread.h>
+#include <osl/thread.hxx>
+#include <sal/log.hxx>
+
+#include <cppu/Enterable.hxx>
+#include <cppu/helper/purpenv/Environment.hxx>
+#include <cppu/helper/purpenv/Mapping.hxx>
+
+namespace {
+
+class UnsafeBridge : public cppu::Enterable
+{
+    osl::Mutex          m_mutex;
+    sal_Int32           m_count;
+    oslThreadIdentifier m_threadId;
+
+    virtual  ~UnsafeBridge() override;
+
+public:
+    explicit UnsafeBridge();
+
+    virtual void v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam) override;
+    virtual void v_callOut_v (uno_EnvCallee * pCallee, va_list * pParam) override;
+
+    virtual void v_enter() override;
+    virtual void v_leave() override;
+
+    virtual bool v_isValid(OUString * pReason) override;
+};
+
+}
+
+UnsafeBridge::UnsafeBridge()
+    : m_count   (0),
+      m_threadId(0)
+{
+    SAL_INFO("cppu.unsafebridge", "LIFE: UnsafeBridge::UnsafeBridge(uno_Environment * pEnv) -> " << this);
+}
+
+UnsafeBridge::~UnsafeBridge()
+{
+    SAL_INFO("cppu.unsafebridge", "LIFE: UnsafeBridge::~UnsafeBridge() -> " << this);
+
+    SAL_WARN_IF(m_count < 0, "cppu.unsafebridge", "m_count is less than 0");
+}
+
+void UnsafeBridge::v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam)
+{
+    enter();
+    pCallee(pParam);
+    leave();
+}
+
+void UnsafeBridge::v_callOut_v(uno_EnvCallee * pCallee, va_list * pParam)
+{
+    SAL_WARN_IF(m_count <= 0, "cppu.unsafebridge", "m_count is less than or equal to 0");
+
+    -- m_count;
+    pCallee(pParam);
+    ++ m_count;
+
+    if (!m_threadId)
+        m_threadId = osl::Thread::getCurrentIdentifier();
+}
+
+void UnsafeBridge::v_enter()
+{
+    m_mutex.acquire();
+
+    SAL_WARN_IF(m_count < 0, "cppu.unsafebridge", "m_count is less than 0");
+
+    if (m_count == 0)
+        m_threadId = osl::Thread::getCurrentIdentifier();
+
+    ++ m_count;
+}
+
+void UnsafeBridge::v_leave()
+{
+    SAL_WARN_IF(m_count <= 0, "cppu.unsafebridge", "m_count is less than or equal to 0");
+
+    -- m_count;
+    if (!m_count)
+        m_threadId = 0;
+
+
+    m_mutex.release();
+}
+
+bool UnsafeBridge::v_isValid(OUString * pReason)
+{
+    bool result = m_count > 0;
+    if (!result)
+    {
+        *pReason = "not entered";
+    }
+    else
+    {
+        result = m_threadId == osl::Thread::getCurrentIdentifier();
+
+        if (!result)
+            *pReason = "wrong thread";
+    }
+
+    if (result)
+        *pReason = "OK";
+
+    return result;
+}
+
+extern "C" void SAL_DLLPUBLIC_EXPORT uno_initEnvironment(uno_Environment * pEnv)
+    SAL_THROW_EXTERN_C()
+{
+    cppu::helper::purpenv::Environment_initWithEnterable(pEnv, new UnsafeBridge());
+}
+
+extern "C" void SAL_DLLPUBLIC_EXPORT uno_ext_getMapping(uno_Mapping     ** ppMapping,
+                                   uno_Environment  * pFrom,
+                                   uno_Environment  * pTo )
+{
+    cppu::helper::purpenv::createMapping(ppMapping, pFrom, pTo);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */