org.purejava.appindicator._GQueue Maven / Gradle / Ivy

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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 _GQueue {
 *     GList *head;
 *     GList *tail;
 *     guint length;
 * }
 * }
 */
public class _GQueue {

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

    private static final GroupLayout $LAYOUT = MemoryLayout.structLayout(
        app_indicator_h.C_POINTER.withName("head"),
        app_indicator_h.C_POINTER.withName("tail"),
        app_indicator_h.C_INT.withName("length"),
        MemoryLayout.paddingLayout(4)
    ).withName("_GQueue");

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

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

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

    private static final long head$OFFSET = 0;

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

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

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

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

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

    private static final long tail$OFFSET = 8;

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

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

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

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

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

    private static final long length$OFFSET = 16;

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

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

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