/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @enablePreview
 * @library ../ /test/lib
 * @requires jdk.foreign.linker != "UNSUPPORTED"
 * @requires jdk.foreign.linker != "FALLBACK"
 * @run testng/othervm --enable-native-access=ALL-UNNAMED TestTrivialUpcall
 */

import org.testng.annotations.Test;

import java.io.IOException;
import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.Linker;
import java.lang.foreign.MemorySegment;
import java.lang.invoke.MethodHandle;

import static org.testng.Assert.fail;

public class TestTrivialUpcall extends UpcallTestHelper {

    @Test
    public void testUpcallFailure() throws IOException, InterruptedException {
        // test to see if we catch a trivial downcall doing an upcall
        runInNewProcess(Runner.class, true).assertStdOutContains("wrong thread state for upcall");
    }

    public static class Runner extends NativeTestHelper {
        public static void main(String[] args) throws Throwable {
            System.loadLibrary("Trivial");

            MethodHandle mh = downcallHandle("do_upcall", FunctionDescriptor.ofVoid(C_POINTER), Linker.Option.isTrivial());
            MemorySegment stub = upcallStub(Runner.class, "target", FunctionDescriptor.ofVoid());
            mh.invokeExact(stub);
        }

        public static void target() {
            fail("Should not get here");
        }
    }
}