/*
 * Copyright (c) 2025, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

// Generated by jextract

package jdk.internal.ffi.generated.errno;

import java.lang.foreign.*;
import java.lang.invoke.*;
import java.util.*;
import java.util.stream.*;

import static java.lang.foreign.ValueLayout.*;

@SuppressWarnings("restricted")
public class errno_h$shared {

    errno_h$shared() {
        // Should not be called directly
    }

    public static final OfBoolean C_BOOL = (OfBoolean) Linker.nativeLinker().canonicalLayouts().get("bool");
    public static final OfByte C_CHAR =(OfByte)Linker.nativeLinker().canonicalLayouts().get("char");
    public static final OfShort C_SHORT = (OfShort) Linker.nativeLinker().canonicalLayouts().get("short");
    public static final OfInt C_INT = (OfInt) Linker.nativeLinker().canonicalLayouts().get("int");
    public static final OfLong C_LONG_LONG = (OfLong) Linker.nativeLinker().canonicalLayouts().get("long long");
    public static final OfFloat C_FLOAT = (OfFloat) Linker.nativeLinker().canonicalLayouts().get("float");
    public static final OfDouble C_DOUBLE = (OfDouble) Linker.nativeLinker().canonicalLayouts().get("double");
    public static final AddressLayout C_POINTER = ((AddressLayout) Linker.nativeLinker().canonicalLayouts().get("void*"))
            .withTargetLayout(MemoryLayout.sequenceLayout(Long.MAX_VALUE, C_CHAR));
    public static final OfLong C_LONG = (OfLong) Linker.nativeLinker().canonicalLayouts().get("long");

    static final boolean TRACE_DOWNCALLS = Boolean.getBoolean("jextract.trace.downcalls");

    static void traceDowncall(String name, Object... args) {
         String traceArgs = Arrays.stream(args)
                       .map(Object::toString)
                       .collect(Collectors.joining(", "));
         System.out.printf("%s(%s)\n", name, traceArgs);
    }

    static MethodHandle upcallHandle(Class<?> fi, String name, FunctionDescriptor fdesc) {
        try {
            return MethodHandles.lookup().findVirtual(fi, name, fdesc.toMethodType());
        } catch (ReflectiveOperationException ex) {
            throw new AssertionError(ex);
        }
    }

    static MemoryLayout align(MemoryLayout layout, long align) {
        return switch (layout) {
            case PaddingLayout p -> p;
            case ValueLayout v -> v.withByteAlignment(align);
            case GroupLayout g -> {
                MemoryLayout[] alignedMembers = g.memberLayouts().stream()
                        .map(m -> align(m, align)).toArray(MemoryLayout[]::new);
                yield g instanceof StructLayout ?
                        MemoryLayout.structLayout(alignedMembers) : MemoryLayout.unionLayout(alignedMembers);
            }
            case SequenceLayout s -> MemoryLayout.sequenceLayout(s.elementCount(), align(s.elementLayout(), align));
        };
    }
}