1 files changed, 141 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsUnicharBuffer.cpp b/src/libs/xpcom18a4/xpcom/ds/nsUnicharBuffer.cpp
new file mode 100644
index 00000000..12033da0
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/ds/nsUnicharBuffer.cpp
@@ -0,0 +1,141 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Pierre Phaneuf <pp@ludusdesign.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsUnicharBuffer.h"
+#include "nsCRT.h"
+
+#define MIN_BUFFER_SIZE 32
+
+UnicharBufferImpl::UnicharBufferImpl()
+  : mBuffer(NULL), mSpace(0), mLength(0)
+{
+}
+
+NS_METHOD
+UnicharBufferImpl::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
+{
+  if (aOuter)
+    return NS_ERROR_NO_AGGREGATION;
+
+  UnicharBufferImpl* it = new UnicharBufferImpl();
+  if (it == nsnull) 
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  NS_ADDREF(it);
+  nsresult rv = it->QueryInterface(aIID, aResult);
+  NS_RELEASE(it);
+  return rv;
+}
+
+NS_IMETHODIMP
+UnicharBufferImpl::Init(PRUint32 aBufferSize)
+{
+  if (aBufferSize < MIN_BUFFER_SIZE) {
+    aBufferSize = MIN_BUFFER_SIZE;
+  }
+  mSpace = aBufferSize;
+  mLength = 0;
+  mBuffer = new PRUnichar[aBufferSize];
+  return mBuffer ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+}
+
+NS_IMPL_ISUPPORTS1(UnicharBufferImpl, nsIUnicharBuffer)
+
+UnicharBufferImpl::~UnicharBufferImpl()
+{
+  if (nsnull != mBuffer) {
+    delete[] mBuffer;
+    mBuffer = nsnull;
+  }
+  mLength = 0;
+}
+
+NS_IMETHODIMP_(PRInt32)
+UnicharBufferImpl::GetLength() const
+{
+  return mLength;
+}
+
+NS_IMETHODIMP_(PRInt32)
+UnicharBufferImpl::GetBufferSize() const
+{
+  return mSpace;
+}
+
+NS_IMETHODIMP_(PRUnichar*)
+UnicharBufferImpl::GetBuffer() const
+{
+  return mBuffer;
+}
+
+NS_IMETHODIMP_(PRBool)
+UnicharBufferImpl::Grow(PRInt32 aNewSize)
+{
+  if (PRUint32(aNewSize) < MIN_BUFFER_SIZE) {
+    aNewSize = MIN_BUFFER_SIZE;
+  }
+  PRUnichar* newbuf = new PRUnichar[aNewSize];
+  if (nsnull != newbuf) {
+    if (0 != mLength) {
+      memcpy(newbuf, mBuffer, mLength * sizeof(PRUnichar));
+    }
+    delete[] mBuffer;
+    mBuffer = newbuf;
+    return PR_TRUE;
+  }
+  return PR_FALSE;
+}
+
+NS_COM nsresult
+NS_NewUnicharBuffer(nsIUnicharBuffer** aInstancePtrResult,
+                    nsISupports* aOuter,
+                    PRUint32 aBufferSize)
+{
+  nsresult rv;
+  nsIUnicharBuffer* buf;
+  rv = UnicharBufferImpl::Create(aOuter, NS_GET_IID(nsIUnicharBuffer), 
+                                 (void**)&buf);
+  if (NS_FAILED(rv)) return rv;
+  rv = buf->Init(aBufferSize);
+  if (NS_FAILED(rv)) {
+    NS_RELEASE(buf);
+    return rv;
+  }
+  *aInstancePtrResult = buf;
+  return rv;
+}