/*
* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.oracle.svm.core.threadlocal;
import java.util.Arrays;
import java.util.Collection;
import org.graalvm.compiler.word.ObjectAccess;
import org.graalvm.compiler.word.Word;
import org.graalvm.nativeimage.hosted.Feature;
import org.graalvm.nativeimage.ImageSingletons;
import org.graalvm.nativeimage.IsolateThread;
import org.graalvm.nativeimage.Platform;
import org.graalvm.nativeimage.Platforms;
import org.graalvm.word.Pointer;
import org.graalvm.word.WordBase;
import org.graalvm.word.WordFactory;
import com.oracle.svm.core.SubstrateOptions;
import com.oracle.svm.core.annotate.AutomaticFeature;
import com.oracle.svm.core.annotate.Uninterruptible;
import com.oracle.svm.core.log.Log;
public class VMThreadLocalInfos {
private VMThreadLocalInfo[] infos;
@Platforms(Platform.HOSTED_ONLY.class)
public static boolean setInfos(Collection<VMThreadLocalInfo> infos) {
VMThreadLocalInfos singleton = ImageSingletons.lookup(VMThreadLocalInfos.class);
VMThreadLocalInfo[] array = infos.toArray(new VMThreadLocalInfo[infos.size()]);
if (!Arrays.equals(singleton.infos, array)) {
singleton.infos = array;
return true;
} else {
return false;
}
}
public static void dumpToLog(Log log, IsolateThread thread) {
for (VMThreadLocalInfo info : ImageSingletons.lookup(VMThreadLocalInfos.class).infos) {
log.signed(info.offset).string(" (").signed(info.sizeInBytes).string(" bytes): ").string(info.name).string(" = ");
if (info.threadLocalClass == FastThreadLocalInt.class) {
int value = primitiveData(thread).readInt(WordFactory.signed(info.offset));
log.string("(int) ").signed(value).string(" ").zhex(value);
} else if (info.threadLocalClass == FastThreadLocalLong.class) {
long value = primitiveData(thread).readLong(WordFactory.signed(info.offset));
log.string("(long) ").signed(value).string(" ").zhex(value);
} else if (info.threadLocalClass == FastThreadLocalWord.class) {
WordBase value = primitiveData(thread).readWord(WordFactory.signed(info.offset));
log.string("(Word) ").signed(value).string(" ").zhex(value.rawValue());
} else if (info.threadLocalClass == FastThreadLocalObject.class) {
Object value = ObjectAccess.readObject(objectData(thread), WordFactory.signed(info.offset));
log.string("(Object) ");
if (value == null) {
log.string("null");
} else {
log.string(value.getClass().getName()).string(" ").zhex(Word.objectToUntrackedPointer(value).rawValue());
}
} else if (info.threadLocalClass == FastThreadLocalBytes.class) {
log.string("(bytes) ").indent(true);
log.hexdump(primitiveData(thread).add(WordFactory.signed(info.offset)), 8, info.sizeInBytes / 8);
log.indent(false);
} else {
log.string("unknown class ").string(info.threadLocalClass.getName());
}
log.newline();
}
}
@Uninterruptible(reason = "called from uninterruptible code", mayBeInlined = true)
private static Pointer primitiveData(IsolateThread thread) {
if (SubstrateOptions.MultiThreaded.getValue()) {
return (Pointer) thread;
} else {
return Word.objectToUntrackedPointer(ImageSingletons.lookup(VMThreadLocalSTSupport.class).primitiveThreadLocals);
}
}
@Uninterruptible(reason = "called from uninterruptible code", mayBeInlined = true)
private static Object objectData(IsolateThread thread) {
if (SubstrateOptions.MultiThreaded.getValue()) {
return ((Pointer) thread).toObjectNonNull();
} else {
return ImageSingletons.lookup(VMThreadLocalSTSupport.class).objectThreadLocals;
}
}
public static long getOffset(FastThreadLocal threadLocal) {
VMThreadLocalInfos singleton = ImageSingletons.lookup(VMThreadLocalInfos.class);
for (VMThreadLocalInfo info : singleton.infos) {
if (threadLocal.getLocationIdentity().equals(info.locationIdentity)) {
return info.offset;
}
}
return -1;
}
}
@AutomaticFeature
class VMThreadLocalInfosFeature implements Feature {
@Override
public void afterRegistration(AfterRegistrationAccess access) {
ImageSingletons.add(VMThreadLocalInfos.class, new VMThreadLocalInfos());
}
}