QPID-139. Initial (re)port of MINA's bytebuffer abstraction. Now includes the autoexpand feature. References to java.nio.Buffer were replaced with FixedByteBuffer and necessary methods added and implemented. FixedByteBuffer delegates to our existing HeapByteBuffer.

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@486248 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 50 insertions, 0 deletions

diff --git a/dotnet/Qpid.Buffer/ByteBufferAllocator.cs b/dotnet/Qpid.Buffer/ByteBufferAllocator.cs
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+++ b/dotnet/Qpid.Buffer/ByteBufferAllocator.cs
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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.
+ *
+ */
+using Qpid.Buffer;
+
+namespace Qpid.Buffer
+{
+    /**
+     * Allocates {@link ByteBuffer}s and manages them.  Please implement this
+     * interface if you need more advanced memory management scheme.
+     */
+    public interface ByteBufferAllocator
+    {
+        /**
+         * Returns the buffer which is capable of the specified size.
+         * 
+         * @param capacity the capacity of the buffer
+         * @param direct <tt>true</tt> to get a direct buffer,
+         *               <tt>false</tt> to get a heap buffer.
+         */
+        ByteBuffer allocate(int capacity, bool direct);
+
+        /**
+         * Wraps the specified NIO {@link FixedByteBuffer} into MINA buffer.
+         */
+        ByteBuffer wrap(FixedByteBuffer nioBuffer);
+
+        /**
+         * Dispose of this allocator.
+         */
+        void dispose();
+    }
+}
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