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

Go to download
Show more of this group Show more artifacts with this name
Show all versions of rawbpf Show documentation
Raw Panama bindings for libbpf generated for jextract on 64-bit Linux
The newest version!
// 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 btf_var {
 *     __u32 linkage;
 * }
 * }
 */
public class btf_var {

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

    private static final GroupLayout $LAYOUT = MemoryLayout.structLayout(
        Lib.C_INT.withName("linkage")
    ).withName("btf_var");

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

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

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

    private static final long linkage$OFFSET = 0;

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

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

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