/* * 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.coyote;
/** * This class is only for internal use in the protocol implementation. All reading from Tomcat (or adapter) should be * done using Request.doRead().
*/ publicinterface InputBuffer {
/** * Read from the input stream into the ByteBuffer provided by the ApplicationBufferHandler. IMPORTANT: the current * model assumes that the protocol will 'own' the ByteBuffer and return a pointer to it. * * @param handler ApplicationBufferHandler that provides the buffer to read data into. * * @return The number of bytes that have been added to the buffer or -1 for end of stream * * @throws IOException If an I/O error occurs reading from the input stream
*/ int doRead(ApplicationBufferHandler handler) throws IOException;
/** * Obtain an estimate of the number of bytes that can be read without blocking. Typically, this will be the number * of available bytes known to be buffered. * * @return The number of bytes that can be read without blocking
*/ int available();
}
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