Examples with ContextsListener com.oracle.truffle.api.instrumentation.ContextsListener used on opensource projects

Example 1 with ContextsListener

use of com.oracle.truffle.api.instrumentation.ContextsListener in project graal by oracle.

the class AllocatedBytesInstrument method onCreate.

@Override
protected synchronized void onCreate(Env env) {
    env.getInstrumenter().attachContextsListener(new ContextsListener() {

        @Override
        public void onContextCreated(TruffleContext c) {
        }

        @Override
        public void onLanguageContextCreated(TruffleContext context, LanguageInfo language) {
        }

        @Override
        public void onLanguageContextInitialized(TruffleContext context, LanguageInfo language) {
            try {
                InteropLibrary interopLibrary = InteropLibrary.getUncached();
                Object polyglotBindings = env.getPolyglotBindings();
                if (!interopLibrary.isMemberExisting(polyglotBindings, GET_ALLOCATED_BYTES)) {
                    interopLibrary.writeMember(polyglotBindings, GET_ALLOCATED_BYTES, new GetAllocatedBytesFunction());
                }
            } catch (UnsupportedMessageException | UnknownIdentifierException | UnsupportedTypeException e) {
                throw CompilerDirectives.shouldNotReachHere("Exception during interop.");
            }
        }

        @Override
        public void onLanguageContextFinalized(TruffleContext context, LanguageInfo language) {
        }

        @Override
        public void onLanguageContextDisposed(TruffleContext context, LanguageInfo language) {
        }

        @Override
        public void onContextClosed(TruffleContext context) {
        }
    }, true);
    env.getInstrumenter().attachThreadsListener(new ThreadsListener() {

        @Override
        public void onThreadInitialized(TruffleContext context, Thread thread) {
            synchronized (AllocatedBytesInstrument.this) {
                threads.add(thread);
            }
        }

        @Override
        public void onThreadDisposed(TruffleContext context, Thread thread) {
            synchronized (AllocatedBytesInstrument.this) {
                threads.remove(thread);
            }
        }
    }, true);
}