netty5/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyHeaderBlockEncoder.java
Norman Maurer 65686b6c83 Reduce memory copies in spdy compression implementation.
Motivation:

Currently we do more memory copies then needed.

Modification:

- Directly use heap buffers to reduce memory copy
- Correctly release buffers to fix buffer leak

Result:

Less memory copies and no leaks
2014-08-21 11:27:32 +02:00

39 lines
1.4 KiB
Java

/*
* Copyright 2013 The Netty Project
*
* The Netty Project 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.
*/
package io.netty.handler.codec.spdy;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.util.internal.PlatformDependent;
abstract class SpdyHeaderBlockEncoder {
static SpdyHeaderBlockEncoder newInstance(
SpdyVersion version, int compressionLevel, int windowBits, int memLevel) {
if (PlatformDependent.javaVersion() >= 7) {
return new SpdyHeaderBlockZlibEncoder(
version, compressionLevel);
} else {
return new SpdyHeaderBlockJZlibEncoder(
version, compressionLevel, windowBits, memLevel);
}
}
abstract ByteBuf encode(ByteBufAllocator alloc, SpdyHeadersFrame frame) throws Exception;
abstract void end();
}