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Java bindings for libayatana-appindicator in 100% pure Java
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// Generated by jextract

package org.purejava.appindicator;

import java.lang.foreign.*;
import java.util.function.Consumer;

import static java.lang.foreign.MemoryLayout.PathElement.groupElement;
import static java.lang.foreign.ValueLayout.OfInt;

/**
 * {@snippet lang=c :
 * struct _GOnce {
 *     volatile GOnceStatus status;
 *     volatile gpointer retval;
 * }
 * }
 */
public class _GOnce {

    _GOnce() {
        // Should not be called directly
    }

    private static final GroupLayout $LAYOUT = MemoryLayout.structLayout(
        app_indicator_h.C_INT.withName("status"),
        MemoryLayout.paddingLayout(4),
        app_indicator_h.C_POINTER.withName("retval")
    ).withName("_GOnce");

    /**
     * The layout of this struct
     */
    public static final GroupLayout layout() {
        return $LAYOUT;
    }

    private static final OfInt status$LAYOUT = (OfInt)$LAYOUT.select(groupElement("status"));

    /**
     * Layout for field:
     * {@snippet lang=c :
     * volatile GOnceStatus status
     * }
     */
    public static final OfInt status$layout() {
        return status$LAYOUT;
    }

    private static final long status$OFFSET = 0;

    /**
     * Offset for field:
     * {@snippet lang=c :
     * volatile GOnceStatus status
     * }
     */
    public static final long status$offset() {
        return status$OFFSET;
    }

    /**
     * Getter for field:
     * {@snippet lang=c :
     * volatile GOnceStatus status
     * }
     */
    public static int status(MemorySegment struct) {
        return struct.get(status$LAYOUT, status$OFFSET);
    }

    /**
     * Setter for field:
     * {@snippet lang=c :
     * volatile GOnceStatus status
     * }
     */
    public static void status(MemorySegment struct, int fieldValue) {
        struct.set(status$LAYOUT, status$OFFSET, fieldValue);
    }

    private static final AddressLayout retval$LAYOUT = (AddressLayout)$LAYOUT.select(groupElement("retval"));

    /**
     * Layout for field:
     * {@snippet lang=c :
     * volatile gpointer retval
     * }
     */
    public static final AddressLayout retval$layout() {
        return retval$LAYOUT;
    }

    private static final long retval$OFFSET = 8;

    /**
     * Offset for field:
     * {@snippet lang=c :
     * volatile gpointer retval
     * }
     */
    public static final long retval$offset() {
        return retval$OFFSET;
    }

    /**
     * Getter for field:
     * {@snippet lang=c :
     * volatile gpointer retval
     * }
     */
    public static MemorySegment retval(MemorySegment struct) {
        return struct.get(retval$LAYOUT, retval$OFFSET);
    }

    /**
     * Setter for field:
     * {@snippet lang=c :
     * volatile gpointer retval
     * }
     */
    public static void retval(MemorySegment struct, MemorySegment fieldValue) {
        struct.set(retval$LAYOUT, retval$OFFSET, fieldValue);
    }

    /**
     * Obtains a slice of {@code arrayParam} which selects the array element at {@code index}.
     * The returned segment has address {@code arrayParam.address() + index * layout().byteSize()}
     */
    public static MemorySegment asSlice(MemorySegment array, long index) {
        return array.asSlice(layout().byteSize() * index);
    }

    /**
     * The size (in bytes) of this struct
     */
    public static long sizeof() { return layout().byteSize(); }

    /**
     * Allocate a segment of size {@code layout().byteSize()} using {@code allocator}
     */
    public static MemorySegment allocate(SegmentAllocator allocator) {
        return allocator.allocate(layout());
    }

    /**
     * Allocate an array of size {@code elementCount} using {@code allocator}.
     * The returned segment has size {@code elementCount * layout().byteSize()}.
     */
    public static MemorySegment allocateArray(long elementCount, SegmentAllocator allocator) {
        return allocator.allocate(MemoryLayout.sequenceLayout(elementCount, layout()));
    }

    /**
     * Reinterprets {@code addr} using target {@code arena} and {@code cleanupAction) (if any).
     * The returned segment has size {@code layout().byteSize()}
     */
    public static MemorySegment reinterpret(MemorySegment addr, Arena arena, Consumer cleanup) {
        return reinterpret(addr, 1, arena, cleanup);
    }

    /**
     * Reinterprets {@code addr} using target {@code arena} and {@code cleanupAction) (if any).
     * The returned segment has size {@code elementCount * layout().byteSize()}
     */
    public static MemorySegment reinterpret(MemorySegment addr, long elementCount, Arena arena, Consumer cleanup) {
        return addr.reinterpret(layout().byteSize() * elementCount, arena, cleanup);
    }
}