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45
jdk/src/share/classes/sun/misc/Contended.java
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45
jdk/src/share/classes/sun/misc/Contended.java
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@ -0,0 +1,45 @@
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/*
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* Copyright (c) 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.misc;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* This annotation marks classes and fields as considered to be contended.
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* @since 1.8
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*/
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@Retention(RetentionPolicy.RUNTIME)
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@Target({ElementType.FIELD, ElementType.TYPE})
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public @interface Contended {
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/**
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Defines the contention group tag.
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*/
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String value() default "";
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}
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2000, 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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@ -147,37 +147,53 @@ class ISO_8859_1
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private final Surrogate.Parser sgp = new Surrogate.Parser();
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// JVM may replace this method with intrinsic code.
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private static int encodeISOArray(char[] sa, int sp,
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byte[] da, int dp, int len)
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{
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int i = 0;
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for (; i < len; i++) {
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char c = sa[sp++];
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if (c > '\u00FF')
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break;
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da[dp++] = (byte)c;
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}
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return i;
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}
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private CoderResult encodeArrayLoop(CharBuffer src,
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ByteBuffer dst)
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{
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char[] sa = src.array();
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int sp = src.arrayOffset() + src.position();
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int sl = src.arrayOffset() + src.limit();
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int soff = src.arrayOffset();
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int sp = soff + src.position();
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int sl = soff + src.limit();
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assert (sp <= sl);
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sp = (sp <= sl ? sp : sl);
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byte[] da = dst.array();
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int dp = dst.arrayOffset() + dst.position();
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int dl = dst.arrayOffset() + dst.limit();
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int doff = dst.arrayOffset();
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int dp = doff + dst.position();
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int dl = doff + dst.limit();
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assert (dp <= dl);
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dp = (dp <= dl ? dp : dl);
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int dlen = dl - dp;
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int slen = sl - sp;
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int len = (dlen < slen) ? dlen : slen;
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try {
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while (sp < sl) {
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char c = sa[sp];
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if (c <= '\u00FF') {
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if (dp >= dl)
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return CoderResult.OVERFLOW;
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da[dp++] = (byte)c;
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sp++;
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continue;
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}
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if (sgp.parse(c, sa, sp, sl) < 0)
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int ret = encodeISOArray(sa, sp, da, dp, len);
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sp = sp + ret;
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dp = dp + ret;
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if (ret != len) {
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if (sgp.parse(sa[sp], sa, sp, sl) < 0)
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return sgp.error();
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return sgp.unmappableResult();
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}
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if (len < slen)
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return CoderResult.OVERFLOW;
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return CoderResult.UNDERFLOW;
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} finally {
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src.position(sp - src.arrayOffset());
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dst.position(dp - dst.arrayOffset());
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src.position(sp - soff);
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dst.position(dp - doff);
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}
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}
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@ -221,22 +237,25 @@ class ISO_8859_1
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public int encode(char[] src, int sp, int len, byte[] dst) {
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int dp = 0;
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int sl = sp + Math.min(len, dst.length);
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int slen = Math.min(len, dst.length);
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int sl = sp + slen;
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while (sp < sl) {
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char c = src[sp++];
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if (c <= '\u00FF') {
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dst[dp++] = (byte)c;
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continue;
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}
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if (Character.isHighSurrogate(c) && sp < sl &&
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Character.isLowSurrogate(src[sp])) {
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if (len > dst.length) {
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sl++;
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len--;
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int ret = encodeISOArray(src, sp, dst, dp, slen);
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sp = sp + ret;
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dp = dp + ret;
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if (ret != slen) {
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char c = src[sp++];
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if (Character.isHighSurrogate(c) && sp < sl &&
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Character.isLowSurrogate(src[sp])) {
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if (len > dst.length) {
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sl++;
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len--;
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}
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sp++;
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}
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sp++;
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dst[dp++] = repl;
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slen = Math.min((sl - sp), (dst.length - dp));
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}
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dst[dp++] = repl;
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}
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return dp;
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}
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