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, 246 insertions, 0 deletions

diff --git a/sal/rtl/byteseq.cxx b/sal/rtl/byteseq.cxx
new file mode 100644
index 000000000..3c4967d54
--- /dev/null
+++ b/sal/rtl/byteseq.cxx
@@ -0,0 +1,246 @@
+/* -*- 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 <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <osl/diagnose.h>
+#include <osl/interlck.h>
+
+#include <rtl/byteseq.h>
+
+/* static data to be referenced by all empty strings
+ * the refCount is predefined to 1 and must never become 0 !
+ */
+static sal_Sequence aEmpty_rtl_ByteSeq =
+{
+    1,      /* sal_Int32    refCount;   */
+    0,      /* sal_Int32    length;     */
+    { 0 }   /* sal_Unicode  buffer[1];  */
+};
+
+void SAL_CALL rtl_byte_sequence_reference2One(
+    sal_Sequence ** ppSequence ) SAL_THROW_EXTERN_C()
+{
+    sal_Sequence * pSequence;
+
+    OSL_ENSURE( ppSequence, "### null ptr!" );
+    pSequence = *ppSequence;
+
+    if (pSequence->nRefCount > 1)
+    {
+        sal_Sequence *pNew;
+        sal_Int32 nElements = pSequence->nElements;
+        if (nElements)
+        {
+            pNew = static_cast<sal_Sequence *>(malloc( SAL_SEQUENCE_HEADER_SIZE + nElements ));
+
+            if ( pNew != nullptr )
+                memcpy( pNew->elements, pSequence->elements, nElements );
+
+            if (! osl_atomic_decrement( &pSequence->nRefCount ))
+                free( pSequence );
+        }
+        else
+        {
+            pNew = static_cast<sal_Sequence *>(malloc( SAL_SEQUENCE_HEADER_SIZE ));
+        }
+
+        if ( pNew != nullptr )
+        {
+            pNew->nRefCount = 1;
+            pNew->nElements = nElements;
+        }
+
+        *ppSequence = pNew;
+    }
+}
+
+void SAL_CALL rtl_byte_sequence_realloc(
+    sal_Sequence ** ppSequence, sal_Int32 nSize ) SAL_THROW_EXTERN_C()
+{
+    sal_Sequence * pSequence;
+    sal_Int32 nElements;
+
+    assert(ppSequence && "### null ptr!");
+    pSequence = *ppSequence;
+    nElements = pSequence->nElements;
+
+    if (nElements == nSize)
+        return;
+
+    if (pSequence->nRefCount > 1) // split
+    {
+        sal_Sequence *pNew = static_cast<sal_Sequence *>(malloc( SAL_SEQUENCE_HEADER_SIZE + nSize ));
+
+        if ( pNew != nullptr )
+        {
+            if (nSize > nElements)
+            {
+                memcpy( pNew->elements, pSequence->elements, nElements );
+                memset( pNew->elements + nElements, 0, nSize - nElements );
+            }
+            else
+            {
+                memcpy( pNew->elements, pSequence->elements, nSize );
+            }
+        }
+
+        if (! osl_atomic_decrement( &pSequence->nRefCount ))
+            free( pSequence );
+        pSequence = pNew;
+    }
+    else
+    {
+        pSequence = static_cast<sal_Sequence *>(realloc(
+            pSequence, SAL_SEQUENCE_HEADER_SIZE + nSize ));
+    }
+
+    if ( pSequence != nullptr )
+    {
+        pSequence->nRefCount = 1;
+        pSequence->nElements = nSize;
+    }
+
+    *ppSequence = pSequence;
+}
+
+void SAL_CALL rtl_byte_sequence_acquire( sal_Sequence *pSequence )
+    SAL_THROW_EXTERN_C()
+{
+    OSL_ASSERT( pSequence );
+    osl_atomic_increment( &(pSequence->nRefCount) );
+}
+
+void SAL_CALL rtl_byte_sequence_release( sal_Sequence *pSequence )
+    SAL_THROW_EXTERN_C()
+{
+    if ( pSequence != nullptr )
+    {
+        if (! osl_atomic_decrement( &(pSequence->nRefCount )) )
+        {
+            free( pSequence );
+        }
+    }
+}
+
+void SAL_CALL rtl_byte_sequence_construct( sal_Sequence **ppSequence , sal_Int32 nLength )
+    SAL_THROW_EXTERN_C()
+{
+    OSL_ASSERT( ppSequence );
+    if( *ppSequence )
+    {
+        rtl_byte_sequence_release( *ppSequence );
+        *ppSequence = nullptr;
+    }
+
+    if( nLength )
+    {
+        *ppSequence = static_cast<sal_Sequence *>(rtl_allocateZeroMemory( SAL_SEQUENCE_HEADER_SIZE + nLength ));
+
+        if ( *ppSequence != nullptr )
+        {
+            (*ppSequence)->nRefCount = 1;
+            (*ppSequence)->nElements = nLength;
+        }
+    }
+    else
+    {
+        *ppSequence = &aEmpty_rtl_ByteSeq;
+        rtl_byte_sequence_acquire( *ppSequence );
+    }
+}
+
+void SAL_CALL rtl_byte_sequence_constructNoDefault( sal_Sequence **ppSequence , sal_Int32 nLength )
+    SAL_THROW_EXTERN_C()
+{
+    OSL_ASSERT( ppSequence );
+    if( *ppSequence )
+    {
+        rtl_byte_sequence_release( *ppSequence );
+        *ppSequence = nullptr;
+    }
+
+    *ppSequence = static_cast<sal_Sequence *>(malloc( SAL_SEQUENCE_HEADER_SIZE + nLength ));
+
+    if ( *ppSequence != nullptr )
+    {
+        (*ppSequence)->nRefCount = 1;
+        (*ppSequence)->nElements = nLength;
+    }
+}
+
+void SAL_CALL rtl_byte_sequence_constructFromArray(
+    sal_Sequence **ppSequence, const sal_Int8 *pData , sal_Int32 nLength )
+    SAL_THROW_EXTERN_C()
+{
+    rtl_byte_sequence_constructNoDefault( ppSequence , nLength );
+    if ( *ppSequence != nullptr && nLength != 0 )
+        memcpy( (*ppSequence)->elements, pData, nLength );
+}
+
+void SAL_CALL rtl_byte_sequence_assign( sal_Sequence **ppSequence , sal_Sequence *pSequence )
+    SAL_THROW_EXTERN_C()
+{
+    if ( *ppSequence != pSequence)
+    {
+        if( *ppSequence )
+        {
+            rtl_byte_sequence_release( *ppSequence );
+        }
+        *ppSequence = pSequence;
+        rtl_byte_sequence_acquire( *ppSequence );
+    }
+//  else
+//      nothing to do
+
+}
+
+sal_Bool SAL_CALL rtl_byte_sequence_equals( sal_Sequence *pSequence1 , sal_Sequence *pSequence2 )
+    SAL_THROW_EXTERN_C()
+{
+    assert(pSequence1 && pSequence2);
+    if (pSequence1 == pSequence2)
+    {
+        return true;
+    }
+    if (pSequence1->nElements != pSequence2->nElements)
+    {
+        return false;
+    }
+    return
+        memcmp(
+            pSequence1->elements, pSequence2->elements, pSequence1->nElements )
+        == 0;
+}
+
+const sal_Int8 *SAL_CALL rtl_byte_sequence_getConstArray( sal_Sequence *pSequence )
+    SAL_THROW_EXTERN_C()
+{
+    return reinterpret_cast<sal_Int8*>(pSequence->elements);
+}
+
+sal_Int32 SAL_CALL rtl_byte_sequence_getLength( sal_Sequence *pSequence )
+    SAL_THROW_EXTERN_C()
+{
+    return pSequence->nElements;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */