/*
* Copyright ( c ) 2022 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* 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
* accompanied this code ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
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*/
/*
* @ test
* @ enablePreview
* @ requires ( ( os . arch = = " amd64 " | os . arch = = " x86_64 " ) & sun . arch . data . model = = " 64 " ) | os . arch = = " aarch64 "
* @ requires ! vm . musl
* @ build NativeTestHelper CallGeneratorHelper TestUpcallBase
*
* @ run testng / othervm - XX : + IgnoreUnrecognizedVMOptions - XX : - VerifyDependencies
* - - enable - native - access = ALL - UNNAMED - Dgenerator . sample . factor = 17
* TestUpcallAsync
*/
import java.lang.foreign.Arena;
import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.GroupLayout;
import java.lang.foreign.MemoryLayout;
import java.lang.foreign.MemorySegment;
import org.testng.annotations.Test;
import java.lang.foreign.SegmentScope;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function .Consumer;
public class TestUpcallAsync extends TestUpcallBase {
static {
System.loadLibrary("TestUpcall" );
System.loadLibrary("AsyncInvokers" );
}
@Test(dataProvider="functions" , dataProviderClass=CallGeneratorHelper.class )
public void testUpcallsAsync(int count, String fName, Ret ret, List<ParamType> paramTypes, List<StructFieldType> fields) throws Throwable {
List<Consumer<Object>> returnChecks = new ArrayList<>();
List<Consumer<Object[]>> argChecks = new ArrayList<>();
MemorySegment addr = findNativeOrThrow(fName);
try (Arena arena = Arena.openShared()) {
FunctionDescriptor descriptor = function (ret, paramTypes, fields);
MethodHandle mh = downcallHandle(ABI, addr, arena, descriptor);
Object[] args = makeArgs(SegmentScope.auto(), ret, paramTypes, fields, returnChecks, argChecks);
mh = mh.asSpreader(Object[].class , args.length);
mh = MethodHandles.insertArguments(mh, 0 , (Object) args);
FunctionDescriptor callbackDesc = descriptor.returnLayout()
.map(FunctionDescriptor::of)
.orElse(FunctionDescriptor.ofVoid());
MemorySegment callback = ABI.upcallStub(mh, callbackDesc, arena.scope());
MethodHandle invoker = asyncInvoker(ret, ret == Ret.VOID ? null : paramTypes.get(0 ), fields);
Object res = (descriptor.returnLayout().isPresent() &&
descriptor.returnLayout().get() instanceof GroupLayout)
? invoker.invoke(arena.scope(), callback)
: invoker.invoke(callback);
argChecks.forEach(c -> c.accept(args));
if (ret == Ret.NON_VOID) {
returnChecks.forEach(c -> c.accept(res));
}
}
}
private static final Map<String, MethodHandle> INVOKERS = new HashMap<>();
private MethodHandle asyncInvoker(Ret ret, ParamType returnType, List<StructFieldType> fields) {
if (ret == Ret.VOID ) {
String name = "call_async_V" ;
return INVOKERS.computeIfAbsent(name, symbol ->
ABI.downcallHandle(
findNativeOrThrow(symbol),
FunctionDescriptor.ofVoid(C_POINTER)));
}
String name = "call_async_" + returnType.name().charAt(0 )
+ (returnType == ParamType.STRUCT ? "_" + sigCode(fields) : "" );
return INVOKERS.computeIfAbsent(name, symbol -> {
MemorySegment invokerSymbol = findNativeOrThrow(symbol);
MemoryLayout returnLayout = returnType.layout(fields);
FunctionDescriptor desc = FunctionDescriptor.of(returnLayout, C_POINTER);
return ABI.downcallHandle(invokerSymbol, desc);
});
}
}
Messung V0.5 in Prozent C=96 H=91 G=93
¤ Dauer der Verarbeitung: 0.19 Sekunden
(vorverarbeitet am 2026-10-11)
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