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, 210 insertions, 0 deletions

diff --git a/o3tl/qa/cow_wrapper_clients.hxx b/o3tl/qa/cow_wrapper_clients.hxx
new file mode 100644
index 000000000..d0e416c96
--- /dev/null
+++ b/o3tl/qa/cow_wrapper_clients.hxx
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+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_O3TL_QA_COW_WRAPPER_CLIENTS_HXX
+#define INCLUDED_O3TL_QA_COW_WRAPPER_CLIENTS_HXX
+
+#include <o3tl/cow_wrapper.hxx>
+#include <assert.h>
+#include <iostream>
+
+/* Definition of Cow_Wrapper_Clients classes */
+
+namespace o3tltests {
+
+/** This is a header and a separate compilation unit on purpose -
+    cow_wrapper needs destructor, copy constructor and assignment
+    operator to be outline, when pimpl idiom is used
+ */
+
+/// test non-opaque impl type
+class cow_wrapper_client1
+{
+public:
+    cow_wrapper_client1() : maImpl() {}
+    explicit cow_wrapper_client1( int nVal ) : maImpl(nVal) {}
+
+    void modify( int nVal ) { *maImpl = nVal; }
+    int  queryUnmodified() const { return *maImpl; }
+
+    void makeUnique() { maImpl.make_unique(); }
+    bool is_unique() const { return maImpl.is_unique(); }
+    oslInterlockedCount use_count() const { return maImpl.use_count(); }
+    void swap( cow_wrapper_client1& r ) { o3tl::swap(maImpl, r.maImpl); }
+
+    bool operator==( const cow_wrapper_client1& rRHS ) const { return maImpl == rRHS.maImpl; }
+    bool operator!=( const cow_wrapper_client1& rRHS ) const { return maImpl != rRHS.maImpl; }
+    bool operator<( const cow_wrapper_client1& rRHS ) const { return maImpl < rRHS.maImpl; }
+
+private:
+    o3tl::cow_wrapper< int > maImpl;
+};
+
+
+class cow_wrapper_client2_impl;
+
+/** test opaque impl type - need to explicitly declare lifetime
+    methods
+ */
+class cow_wrapper_client2
+{
+public:
+    cow_wrapper_client2();
+    explicit cow_wrapper_client2( int nVal );
+    ~cow_wrapper_client2();
+
+    cow_wrapper_client2( const cow_wrapper_client2& );
+    cow_wrapper_client2(cow_wrapper_client2&&) noexcept;
+    cow_wrapper_client2& operator=( const cow_wrapper_client2& );
+    cow_wrapper_client2& operator=(cow_wrapper_client2&&) noexcept;
+
+    void modify( int nVal );
+    int  queryUnmodified() const;
+
+    void makeUnique();
+    bool is_unique() const;
+    oslInterlockedCount use_count() const;
+    void swap( cow_wrapper_client2& r );
+
+    bool operator==( const cow_wrapper_client2& rRHS ) const;
+    bool operator!=( const cow_wrapper_client2& rRHS ) const;
+    bool operator<( const cow_wrapper_client2& rRHS ) const;
+
+private:
+    o3tl::cow_wrapper< cow_wrapper_client2_impl > maImpl;
+};
+
+/** test MT-safe cow_wrapper - basically the same as
+    cow_wrapper_client2, only with different refcounting policy
+ */
+class cow_wrapper_client3
+{
+public:
+    cow_wrapper_client3();
+    explicit cow_wrapper_client3( int nVal );
+    ~cow_wrapper_client3();
+
+    cow_wrapper_client3( const cow_wrapper_client3& );
+    cow_wrapper_client3(cow_wrapper_client3&&) noexcept;
+    cow_wrapper_client3& operator=( const cow_wrapper_client3& );
+    cow_wrapper_client3& operator=(cow_wrapper_client3&&) noexcept;
+
+    void modify( int nVal );
+    int  queryUnmodified() const;
+
+    void makeUnique();
+    bool is_unique() const;
+    oslInterlockedCount use_count() const;
+    void swap( cow_wrapper_client3& r );
+
+    bool operator==( const cow_wrapper_client3& rRHS ) const;
+    bool operator!=( const cow_wrapper_client3& rRHS ) const;
+    bool operator<( const cow_wrapper_client3& rRHS ) const;
+
+private:
+    o3tl::cow_wrapper< cow_wrapper_client2_impl, o3tl::ThreadSafeRefCountingPolicy > maImpl;
+};
+
+/** test default-object comparison - have default-stored-client4 share
+    the same static impl instance, check if isDefault does the right
+    thing
+ */
+class cow_wrapper_client4
+{
+public:
+    cow_wrapper_client4();
+    explicit cow_wrapper_client4(int);
+    ~cow_wrapper_client4();
+
+    cow_wrapper_client4( const cow_wrapper_client4& );
+    cow_wrapper_client4& operator=( const cow_wrapper_client4& );
+
+    bool is_default() const;
+
+    bool operator==( const cow_wrapper_client4& rRHS ) const;
+    bool operator!=( const cow_wrapper_client4& rRHS ) const;
+    bool operator<( const cow_wrapper_client4& rRHS ) const;
+
+private:
+    o3tl::cow_wrapper< int > maImpl;
+};
+
+// singleton ref-counting policy used to keep track of when
+// incrementing and decrementing occurs
+struct BogusRefCountPolicy
+{
+    static bool s_bShouldIncrement;
+    static bool s_bShouldDecrement;
+    static sal_uInt32 s_nEndOfScope;
+    typedef sal_uInt32 ref_count_t;
+    static void incrementCount( ref_count_t& rCount ) {
+        assert(s_bShouldIncrement && "Ref-counting policy incremented when it should not have.");
+        ++rCount;
+        s_bShouldIncrement = false;
+    }
+    static bool decrementCount( ref_count_t& rCount ) {
+        assert((s_nEndOfScope || s_bShouldDecrement) && "Ref-counting policy decremented when it should not have.");
+        if(s_nEndOfScope)
+        {
+            --rCount;
+            --s_nEndOfScope;
+        }
+        else if(s_bShouldDecrement)
+        {
+            --rCount;
+            s_bShouldDecrement = false;
+        }
+        return rCount != 0;
+    }
+};
+
+class cow_wrapper_client5
+{
+public:
+    cow_wrapper_client5();
+    explicit cow_wrapper_client5(int);
+    ~cow_wrapper_client5();
+
+    cow_wrapper_client5( const cow_wrapper_client5& );
+    cow_wrapper_client5(cow_wrapper_client5&&) noexcept;
+    cow_wrapper_client5& operator=( const cow_wrapper_client5& );
+    cow_wrapper_client5& operator=(cow_wrapper_client5&&) noexcept;
+
+    int queryUnmodified() const { return *maImpl; }
+    sal_uInt32 use_count() const { return maImpl.use_count(); }
+
+    bool operator==( const cow_wrapper_client5& rRHS ) const;
+    bool operator!=( const cow_wrapper_client5& rRHS ) const;
+
+private:
+    o3tl::cow_wrapper< int, BogusRefCountPolicy > maImpl;
+};
+
+template< typename charT, typename traits >
+inline std::basic_ostream<charT, traits> & operator <<(
+    std::basic_ostream<charT, traits> & stream, const cow_wrapper_client5& client )
+{
+    return stream << client.queryUnmodified();
+}
+
+} // namespace o3tltests
+
+#endif // INCLUDED_O3TL_QA_COW_WRAPPER_CLIENTS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */