Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/1907#discussion_r16139683
--- Diff:
core/src/main/scala/org/apache/spark/network/netty/ReferenceCountedBuffer.scala
---
@@ -17,15 +17,25 @@
package org.apache.spark.network.netty
-import io.netty.channel.ChannelInitializer
-import io.netty.channel.socket.SocketChannel
-import io.netty.handler.codec.string.StringEncoder
+import java.io.InputStream
+import java.nio.ByteBuffer
+import io.netty.buffer.{ByteBufInputStream, ByteBuf}
-class FileClientChannelInitializer(handler: FileClientHandler)
- extends ChannelInitializer[SocketChannel] {
- def initChannel(channel: SocketChannel) {
- channel.pipeline.addLast("encoder", new
StringEncoder).addLast("handler", handler)
- }
+/**
+ * A buffer abstraction based on Netty's ByteBuf.
+ *
+ * The buffer's life cycle is NOT managed by the JVM, and thus requiring
explicit declaration of
+ * reference by the retain method and release method.
+ */
+class ReferenceCountedBuffer(underlying: ByteBuf) {
--- End diff --
good idea
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