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Adds class preordering. Fixes concurrency issues

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This commit is contained in:
Alexey Andreev 2013-11-20 18:16:48 +04:00
parent cf6c9b1ba6
commit 04e12562a0
5 changed files with 63 additions and 25 deletions
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18
teavm-classlib/src/main/java/org/teavm/classlibgen/ClasslibTestGenerator.java
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@ -2,10 +2,7 @@ package org.teavm.classlibgen;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.*;
import org.apache.commons.io.IOUtils;
import org.teavm.codegen.DefaultAliasProvider;
import org.teavm.codegen.DefaultNamingStrategy;
@ -51,9 +48,7 @@ public class ClasslibTestGenerator {
}
dependencyChecker.checkDependencies();
dependencyChecker.cutUnachievableClasses();
for (String className : dependencyChecker.getAchievableClasses()) {
decompileClass(className);
}
decompileClasses(dependencyChecker.getAchievableClasses());
renderHead();
ClassLoader classLoader = ClasslibTestGenerator.class.getClassLoader();
try (InputStream input = classLoader.getResourceAsStream("org/teavm/classlib/junit-support.js")) {
@ -69,10 +64,11 @@ public class ClasslibTestGenerator {
renderFoot();
}
private static void decompileClass(String className) {
ClassHolder cls = classSource.getClassHolder(className);
ClassNode clsNode = decompiler.decompile(cls);
renderer.render(clsNode);
private static void decompileClasses(Collection<String> classNames) {
List<ClassNode> clsNodes = decompiler.decompile(classNames);
for (ClassNode clsNode : clsNodes) {
renderer.render(clsNode);
}
}
private static void renderHead() {

1
teavm-core/src/main/java/org/teavm/codegen/ConcurrentCachedMapper.java
View File

@ -41,6 +41,7 @@ public class ConcurrentCachedMapper<T, R> implements Mapper<T, R> {
}
} else {
CountDownLatch latch = oldWrapper.latch;
wrapper = oldWrapper;
try {
latch.await();
} catch (InterruptedException e) {

36
teavm-core/src/main/java/org/teavm/dependency/DependencyChecker.java
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@ -18,6 +18,7 @@ package org.teavm.dependency;
import java.util.Collection;
import java.util.HashSet;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicReference;
import org.teavm.codegen.ConcurrentCachedMapper;
import org.teavm.codegen.ConcurrentCachedMapper.KeyListener;
import org.teavm.codegen.Mapper;
@ -36,7 +37,7 @@ public class DependencyChecker {
private ConcurrentCachedMapper<FieldReference, DependencyNode> fieldCache;
private ConcurrentMap<String, Object> achievableClasses = new ConcurrentHashMap<>();
private ConcurrentMap<String, Object> initializedClasses = new ConcurrentHashMap<>();
private volatile RuntimeException exceptionOccured;
private AtomicReference<RuntimeException> exceptionOccured = new AtomicReference<>();
public DependencyChecker(ClassHolderSource classSource) {
this(classSource, Runtime.getRuntime().availableProcessors());
@ -99,21 +100,24 @@ public class DependencyChecker {
}
void schedule(final Runnable runnable) {
executor.execute(new Runnable() {
@Override
public void run() {
try {
runnable.run();
} catch (RuntimeException e) {
exceptionOccured = e;
executor.shutdownNow();
try {
executor.execute(new Runnable() {
@Override public void run() {
try {
runnable.run();
} catch (RuntimeException e) {
exceptionOccured.compareAndSet(null, e);
executor.shutdownNow();
}
}
}
});
});
} catch (RejectedExecutionException e) {
throw exceptionOccured.get();
}
}
public void checkDependencies() {
exceptionOccured = null;
exceptionOccured.set(null);
while (true) {
try {
if (executor.getActiveCount() == 0 || executor.awaitTermination(1, TimeUnit.SECONDS)) {
@ -124,8 +128,9 @@ public class DependencyChecker {
break;
}
}
if (exceptionOccured != null) {
throw exceptionOccured;
RuntimeException e = exceptionOccured.get();
if (e != null) {
throw exceptionOccured.get();
}
}
@ -144,6 +149,9 @@ public class DependencyChecker {
break;
}
ClassHolder cls = classSource.getClassHolder(className);
if (cls == null) {
throw new RuntimeException("Class not found: " + className);
}
if (cls.getMethod(clinitDesc) != null) {
attachMethodGraph(new MethodReference(className, clinitDesc));
}

3
teavm-core/src/main/java/org/teavm/dependency/DependencyGraphBuilder.java
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@ -81,6 +81,9 @@ class DependencyGraphBuilder {
return;
}
MethodGraph targetGraph = checker.attachMethodGraph(methodRef);
if (targetGraph == null) {
throw new RuntimeException("Method not found: " + methodRef);
}
DependencyNode[] targetParams = targetGraph.getVariableNodes();
for (int i = 0; i < parameters.length; ++i) {
parameters[i].connect(targetParams[i]);

30
teavm-core/src/main/java/org/teavm/javascript/Decompiler.java
View File

@ -62,6 +62,36 @@ public class Decompiler {
}
}
public List<ClassNode> decompile(Collection<String> classNames) {
List<String> sequence = new ArrayList<>();
Set<String> visited = new HashSet<>();
for (String className : classNames) {
orderClasses(className, visited, sequence);
}
List<ClassNode> result = new ArrayList<>();
for (String className : sequence) {
result.add(decompile(classSource.getClassHolder(className)));
}
return result;
}
private void orderClasses(String className, Set<String> visited, List<String> order) {
if (!visited.add(className)) {
return;
}
ClassHolder cls = classSource.getClassHolder(className);
if (cls == null) {
throw new IllegalArgumentException("Class not found: " + className);
}
if (cls.getParent() != null) {
orderClasses(cls.getParent(), visited, order);
}
for (String iface : cls.getInterfaces()) {
orderClasses(iface, visited, order);
}
order.add(className);
}
public ClassNode decompile(ClassHolder cls) {
ClassNode clsNode = new ClassNode(cls.getName(), cls.getParent());
for (FieldHolder field : cls.getFields()) {