Added Xerces-C++ 3.1.2

2015-12-01 10:23:50 +01:00
parent 65d3f3bc31
commit 1b478d3159
815 changed files with 262638 additions and 0 deletions
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+/*
+ * 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
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * $Id: XMLBuffer.cpp 932887 2010-04-11 13:04:59Z borisk $
+ */
+
+
+// ---------------------------------------------------------------------------
+//  Includes
+// ---------------------------------------------------------------------------
+#include <xercesc/framework/XMLBuffer.hpp>
+#include <xercesc/util/XMLString.hpp>
+#include <xercesc/util/RuntimeException.hpp>
+
+XERCES_CPP_NAMESPACE_BEGIN
+
+// ---------------------------------------------------------------------------
+//  XMLBuffer: Buffer management
+// ---------------------------------------------------------------------------
+
+void XMLBuffer::ensureCapacity(const XMLSize_t extraNeeded)
+{    
+    // If we can't handle it, try doubling the buffer size.
+    XMLSize_t newCap = (fIndex + extraNeeded) * 2;
+
+    // If a maximum size is set, and double the current buffer size exceeds that
+    // maximum, first check if the maximum size will accomodate the extra needed.
+    if (fFullHandler && (newCap > fFullSize))
+    {
+        // If the maximum buffer size accomodates the extra needed, resize to
+        // the maximum
+        if (fIndex + extraNeeded <= fFullSize) 
+        {
+            newCap = fFullSize;
+        }
+
+        // Otherwise, allow the registered full-handler to try to empty the buffer.
+        // If it claims success, and we can accommodate the extra needed in the buffer
+        // to be expanded, resize to the maximum
+        // Note the order of evaluation: bufferFull() has the intentional side-effect
+        // of modifying fIndex.
+        else if (fFullHandler->bufferFull(*this) && (fIndex + extraNeeded <= fFullSize))
+        {
+            newCap = fFullSize;
+        }
+
+        // Finally, if the full-handler failed, or the buffer (of maximum size) 
+        // still can't accomodate the extra needed, we must fail.
+        else
+            ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::Array_BadNewSize, fMemoryManager);
+    }
+
+    // Note the previous if block can modify newCap, so we may not need to allocate
+    // at all.
+    if (newCap > fCapacity)
+    {
+        // Allocate new buffer
+        XMLCh* newBuf = (XMLCh*) fMemoryManager->allocate((newCap+1) * sizeof(XMLCh)); //new XMLCh[newCap+1];
+ 
+        // Copy over the old stuff
+        memcpy(newBuf, fBuffer, fIndex * sizeof(XMLCh));
+
+        // Clean up old buffer and store new stuff
+        fMemoryManager->deallocate(fBuffer); //delete [] fBuffer;
+        fBuffer = newBuf;
+        fCapacity = newCap;
+    }
+}
+
+XERCES_CPP_NAMESPACE_END
+