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package org.graalvm.compiler.hotspot;

import org.graalvm.compiler.serviceprovider.ServiceProvider;

import jdk.vm.ci.hotspot.HotSpotVMEventListener;
import jdk.vm.ci.runtime.JVMCICompilerFactory;
import jdk.vm.ci.services.JVMCIServiceLocator;

@ServiceProvider(JVMCIServiceLocator.class)
public final class HotSpotGraalJVMCIServiceLocator extends JVMCIServiceLocator {

    
Holds the state shared between all HotSpotGraalJVMCIServiceLocator instances. This is necessary as a service provider instance is created each time the service is loaded.
/** * Holds the state shared between all {@link HotSpotGraalJVMCIServiceLocator} instances. This is * necessary as a service provider instance is created each time the service is loaded. */
private static final class Shared { static final Shared SINGLETON = new Shared(); <T> T getProvider(Class<T> service, HotSpotGraalJVMCIServiceLocator locator) { if (service == JVMCICompilerFactory.class) { return service.cast(new HotSpotGraalCompilerFactory(locator)); } else if (service == HotSpotVMEventListener.class) { if (graalRuntime != null) { return service.cast(new HotSpotGraalVMEventListener(graalRuntime)); } } return null; } private HotSpotGraalRuntime graalRuntime;
Notifies this object of the compiler created via HotSpotGraalJVMCIServiceLocator.
/** * Notifies this object of the compiler created via {@link HotSpotGraalJVMCIServiceLocator}. */
void onCompilerCreation(HotSpotGraalCompiler compiler) { assert this.graalRuntime == null : "only expect a single JVMCICompiler to be created"; this.graalRuntime = (HotSpotGraalRuntime) compiler.getGraalRuntime(); } } @Override public <T> T getProvider(Class<T> service) { return Shared.SINGLETON.getProvider(service, this); }
Notifies this object of the compiler created via HotSpotGraalJVMCIServiceLocator.
/** * Notifies this object of the compiler created via {@link HotSpotGraalJVMCIServiceLocator}. */
@SuppressWarnings("static-method") void onCompilerCreation(HotSpotGraalCompiler compiler) { Shared.SINGLETON.onCompilerCreation(compiler); } }