109 lines
3.6 KiB
Java
109 lines
3.6 KiB
Java
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/*
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* Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.nio.ch;
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import java.nio.channels.Channel;
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import java.io.FileDescriptor;
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import java.io.IOException;
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import static java.util.concurrent.TimeUnit.NANOSECONDS;
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/**
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* An interface that allows translation (and more!).
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*
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* @since 1.4
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*/
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public interface SelChImpl extends Channel {
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FileDescriptor getFD();
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int getFDVal();
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/**
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* Adds the specified ops if present in interestOps. The specified
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* ops are turned on without affecting the other ops.
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*
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* @return true iff the new value of sk.readyOps() set by this method
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* contains at least one bit that the previous value did not
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* contain
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*/
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public boolean translateAndUpdateReadyOps(int ops, SelectionKeyImpl sk);
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/**
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* Sets the specified ops if present in interestOps. The specified
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* ops are turned on, and all other ops are turned off.
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*
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* @return true iff the new value of sk.readyOps() set by this method
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* contains at least one bit that the previous value did not
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* contain
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*/
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public boolean translateAndSetReadyOps(int ops, SelectionKeyImpl sk);
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void translateAndSetInterestOps(int ops, SelectionKeyImpl sk);
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int validOps();
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void kill() throws IOException;
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/**
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* Disables the current thread for scheduling purposes until this
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* channel is ready for I/O, or asynchronously closed, for up to the
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* specified waiting time.
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*
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* <p> This method does <em>not</em> report which of these caused the
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* method to return. Callers should re-check the conditions which caused
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* the thread to park.
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*
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* @param event the event to poll
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* @param nanos the timeout to wait; {@code <= 0} to wait indefinitely
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*/
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default void park(int event, long nanos) throws IOException {
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long millis;
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if (nanos <= 0) {
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millis = -1;
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} else {
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millis = NANOSECONDS.toMillis(nanos);
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}
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Net.poll(getFD(), event, millis);
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}
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/**
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* Disables the current thread for scheduling purposes until this
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* channel is ready for I/O, or asynchronously closed.
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*
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* <p> This method does <em>not</em> report which of these caused the
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* method to return. Callers should re-check the conditions which caused
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* the thread to park.
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*
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* @param event the event to poll
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*/
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default void park(int event) throws IOException {
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park(event, 0L);
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}
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}
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