Examples with FunctionDescriptor jdk.incubator.foreign.FunctionDescriptor used on opensource projects

Example 81 with FunctionDescriptor

use of jdk.incubator.foreign.FunctionDescriptor in project openj9 by eclipse.

the class PrimitiveTypeTests method test_addLongAndLongFromPointer.

@Test
public void test_addLongAndLongFromPointer() throws Throwable {
    MethodType mt = MethodType.methodType(long.class, MemoryAddress.class, long.class);
    FunctionDescriptor fd = FunctionDescriptor.of(longLayout, C_POINTER, longLayout);
    Symbol functionSymbol = nativeLib.lookup("addLongAndLongFromPointer").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    MemorySegment longSegmt = MemorySegment.allocateNative(longLayout);
    MemoryAccess.setLong(longSegmt, 57424L);
    long result = (long) mh.invokeExact(longSegmt.address(), 698235L);
    longSegmt.close();
    Assert.assertEquals(result, 755659L);
    FunctionDescriptor fd2 = FunctionDescriptor.of(longLayout.withName("long"), C_POINTER.withName("int"), longLayout.withName("long"));
    mh = clinker.downcallHandle(functionSymbol, mt, fd2);
    longSegmt = MemorySegment.allocateNative(longLayout.withName("long"));
    MemoryAccess.setLong(longSegmt, 11111L);
    result = (long) mh.invokeExact(longSegmt.address(), 22222L);
    longSegmt.close();
    Assert.assertEquals(result, 33333L);
}

Example 82 with FunctionDescriptor

use of jdk.incubator.foreign.FunctionDescriptor in project openj9 by eclipse.

the class InvalidDownCallTests method test_mismatchedBoolArgWithShortLayout.

@Test(expectedExceptions = IllegalArgumentException.class, expectedExceptionsMessageRegExp = "Mismatched size .*")
public void test_mismatchedBoolArgWithShortLayout() throws Throwable {
    MethodType mt = MethodType.methodType(boolean.class, boolean.class, boolean.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_SHORT, C_CHAR);
    Addressable functionSymbol = nativeLibLookup.lookup("add2BoolsWithOr").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    fail("Failed to throw out IllegalArgumentException in the case of the mismatched layout");
}

Example 83 with FunctionDescriptor

use of jdk.incubator.foreign.FunctionDescriptor in project openj9 by eclipse.

the class InvalidDownCallTests method test_mismatchedIntArgTypeWithLongLayout.

@Test(expectedExceptions = IllegalArgumentException.class, expectedExceptionsMessageRegExp = "Mismatched size .*")
public void test_mismatchedIntArgTypeWithLongLayout() throws Throwable {
    MethodType mt = MethodType.methodType(long.class, int.class, long.class);
    FunctionDescriptor fd = FunctionDescriptor.of(longLayout, longLayout, longLayout);
    Addressable functionSymbol = nativeLibLookup.lookup("add2Longs").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    fail("Failed to throw out IllegalArgumentException in the case of the mismatched int type");
}

Example 84 with FunctionDescriptor

use of jdk.incubator.foreign.FunctionDescriptor in project openj9 by eclipse.

the class InvalidDownCallTests method test_invalidBooleanTypeOnReturn.

@Test(expectedExceptions = IllegalArgumentException.class, expectedExceptionsMessageRegExp = "The return type must be .*")
public void test_invalidBooleanTypeOnReturn() throws Throwable {
    MethodType mt = MethodType.methodType(Boolean.class, boolean.class, boolean.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_CHAR, C_CHAR, C_CHAR);
    Addressable functionSymbol = nativeLibLookup.lookup("add2BoolsWithOr").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    fail("Failed to throw out IllegalArgumentException in the case of the Boolean return type");
}

Example 85 with FunctionDescriptor

use of jdk.incubator.foreign.FunctionDescriptor in project openj9 by eclipse.

the class InvalidDownCallTests method test_mismatchedCharArgWithCharLayout.

@Test(expectedExceptions = IllegalArgumentException.class, expectedExceptionsMessageRegExp = "Mismatched size .*")
public void test_mismatchedCharArgWithCharLayout() throws Throwable {
    MethodType mt = MethodType.methodType(char.class, char.class, char.class);
    FunctionDescriptor fd = FunctionDescriptor.of(C_SHORT, C_CHAR, C_SHORT);
    Addressable functionSymbol = nativeLibLookup.lookup("createNewCharFrom2Chars").get();
    MethodHandle mh = clinker.downcallHandle(functionSymbol, mt, fd);
    fail("Failed to throw out IllegalArgumentException in the case of the mismatched layout");
}