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java/org/apache/tomcat/util/net/SendfileKeepAliveState.java

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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.
+ */
+package org.apache.tomcat.util.net;
+
+public enum SendfileKeepAliveState {
+
+    /**
+     * Keep-alive is not in use. The socket can be closed when the response has
+     * been written.
+     */
+    NONE,
+
+    /**
+     * Keep-alive is in use and there is pipelined data in the input buffer to
+     * be read as soon as the current response has been written.
+     */
+    PIPELINED,
+
+    /**
+     * Keep-alive is in use. The socket should be added to the poller (or
+     * equivalent) to await more data as soon as the current response has been
+     * written.
+     */
+    OPEN
+}