me.bechberger.ebpf.bpf.raw.bpf_link_update_opts Maven / Gradle / Ivy

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Raw Panama bindings for libbpf generated for jextract on 64-bit Linux
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// Generated by jextract

package me.bechberger.ebpf.bpf.raw;

import java.lang.invoke.*;
import java.lang.foreign.*;
import java.nio.ByteOrder;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

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

/**
 * {@snippet lang=c :
 * struct bpf_link_update_opts {
 *     size_t sz;
 *     __u32 flags;
 *     __u32 old_prog_fd;
 *     __u32 old_map_fd;
 * }
 * }
 */
public class bpf_link_update_opts {

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

    private static final GroupLayout $LAYOUT = MemoryLayout.structLayout(
        Lib.C_LONG.withName("sz"),
        Lib.C_INT.withName("flags"),
        Lib.C_INT.withName("old_prog_fd"),
        Lib.C_INT.withName("old_map_fd"),
        MemoryLayout.paddingLayout(4)
    ).withName("bpf_link_update_opts");

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

    private static final OfLong sz$LAYOUT = (OfLong)$LAYOUT.select(groupElement("sz"));

    /**
     * Layout for field:
     * {@snippet lang=c :
     * size_t sz
     * }
     */
    public static final OfLong sz$layout() {
        return sz$LAYOUT;
    }

    private static final long sz$OFFSET = 0;

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

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

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

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

    /**
     * Layout for field:
     * {@snippet lang=c :
     * __u32 flags
     * }
     */
    public static final OfInt flags$layout() {
        return flags$LAYOUT;
    }

    private static final long flags$OFFSET = 8;

    /**
     * Offset for field:
     * {@snippet lang=c :
     * __u32 flags
     * }
     */
    public static final long flags$offset() {
        return flags$OFFSET;
    }

    /**
     * Getter for field:
     * {@snippet lang=c :
     * __u32 flags
     * }
     */
    public static int flags(MemorySegment struct) {
        return struct.get(flags$LAYOUT, flags$OFFSET);
    }

    /**
     * Setter for field:
     * {@snippet lang=c :
     * __u32 flags
     * }
     */
    public static void flags(MemorySegment struct, int fieldValue) {
        struct.set(flags$LAYOUT, flags$OFFSET, fieldValue);
    }

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

    /**
     * Layout for field:
     * {@snippet lang=c :
     * __u32 old_prog_fd
     * }
     */
    public static final OfInt old_prog_fd$layout() {
        return old_prog_fd$LAYOUT;
    }

    private static final long old_prog_fd$OFFSET = 12;

    /**
     * Offset for field:
     * {@snippet lang=c :
     * __u32 old_prog_fd
     * }
     */
    public static final long old_prog_fd$offset() {
        return old_prog_fd$OFFSET;
    }

    /**
     * Getter for field:
     * {@snippet lang=c :
     * __u32 old_prog_fd
     * }
     */
    public static int old_prog_fd(MemorySegment struct) {
        return struct.get(old_prog_fd$LAYOUT, old_prog_fd$OFFSET);
    }

    /**
     * Setter for field:
     * {@snippet lang=c :
     * __u32 old_prog_fd
     * }
     */
    public static void old_prog_fd(MemorySegment struct, int fieldValue) {
        struct.set(old_prog_fd$LAYOUT, old_prog_fd$OFFSET, fieldValue);
    }

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

    /**
     * Layout for field:
     * {@snippet lang=c :
     * __u32 old_map_fd
     * }
     */
    public static final OfInt old_map_fd$layout() {
        return old_map_fd$LAYOUT;
    }

    private static final long old_map_fd$OFFSET = 16;

    /**
     * Offset for field:
     * {@snippet lang=c :
     * __u32 old_map_fd
     * }
     */
    public static final long old_map_fd$offset() {
        return old_map_fd$OFFSET;
    }

    /**
     * Getter for field:
     * {@snippet lang=c :
     * __u32 old_map_fd
     * }
     */
    public static int old_map_fd(MemorySegment struct) {
        return struct.get(old_map_fd$LAYOUT, old_map_fd$OFFSET);
    }

    /**
     * Setter for field:
     * {@snippet lang=c :
     * __u32 old_map_fd
     * }
     */
    public static void old_map_fd(MemorySegment struct, int fieldValue) {
        struct.set(old_map_fd$LAYOUT, old_map_fd$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);
    }
}