65 lines
2.5 KiB
Java
65 lines
2.5 KiB
Java
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/*
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* Copyright (c) 2002, 2013, 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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// Signalling operations on native threads
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//
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// On some operating systems (e.g., Linux), closing a channel while another
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// thread is blocked in an I/O operation upon that channel does not cause that
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// thread to be released. This class provides access to the native threads
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// upon which Java threads are built, and defines a simple signal mechanism
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// that can be used to release a native thread from a blocking I/O operation.
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// On systems that do not require this type of signalling, the current() method
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// always returns -1 and the signal(long) method has no effect.
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public class NativeThread {
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// Returns an opaque token representing the native thread underlying the
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// invoking Java thread. On systems that do not require signalling, this
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// method always returns -1.
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//
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public static native long current();
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// Signals the given native thread so as to release it from a blocking I/O
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// operation. On systems that do not require signalling, this method has
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// no effect.
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//
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public static native void signal(long nt);
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// Android-removed: Code to load native libraries, doesn't make sense on Android.
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/*
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private static native void init();
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static {
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IOUtil.load();
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init();
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}
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*/
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}
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