me.bechberger.ebpf.bpf.raw.tcp_word_hdr 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 :
 * union tcp_word_hdr {
 *     struct tcphdr hdr;
 *     __be32 words[5];
 * }
 * }
 */
public class tcp_word_hdr {

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

    private static final GroupLayout $LAYOUT = MemoryLayout.unionLayout(
        tcphdr.layout().withName("hdr"),
        MemoryLayout.sequenceLayout(5, Lib.C_INT).withName("words")
    ).withName("tcp_word_hdr");

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

    private static final GroupLayout hdr$LAYOUT = (GroupLayout)$LAYOUT.select(groupElement("hdr"));

    /**
     * Layout for field:
     * {@snippet lang=c :
     * struct tcphdr hdr
     * }
     */
    public static final GroupLayout hdr$layout() {
        return hdr$LAYOUT;
    }

    private static final long hdr$OFFSET = 0;

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

    /**
     * Getter for field:
     * {@snippet lang=c :
     * struct tcphdr hdr
     * }
     */
    public static MemorySegment hdr(MemorySegment union) {
        return union.asSlice(hdr$OFFSET, hdr$LAYOUT.byteSize());
    }

    /**
     * Setter for field:
     * {@snippet lang=c :
     * struct tcphdr hdr
     * }
     */
    public static void hdr(MemorySegment union, MemorySegment fieldValue) {
        MemorySegment.copy(fieldValue, 0L, union, hdr$OFFSET, hdr$LAYOUT.byteSize());
    }

    private static final SequenceLayout words$LAYOUT = (SequenceLayout)$LAYOUT.select(groupElement("words"));

    /**
     * Layout for field:
     * {@snippet lang=c :
     * __be32 words[5]
     * }
     */
    public static final SequenceLayout words$layout() {
        return words$LAYOUT;
    }

    private static final long words$OFFSET = 0;

    /**
     * Offset for field:
     * {@snippet lang=c :
     * __be32 words[5]
     * }
     */
    public static final long words$offset() {
        return words$OFFSET;
    }

    /**
     * Getter for field:
     * {@snippet lang=c :
     * __be32 words[5]
     * }
     */
    public static MemorySegment words(MemorySegment union) {
        return union.asSlice(words$OFFSET, words$LAYOUT.byteSize());
    }

    /**
     * Setter for field:
     * {@snippet lang=c :
     * __be32 words[5]
     * }
     */
    public static void words(MemorySegment union, MemorySegment fieldValue) {
        MemorySegment.copy(fieldValue, 0L, union, words$OFFSET, words$LAYOUT.byteSize());
    }

    private static long[] words$DIMS = { 5 };

    /**
     * Dimensions for array field:
     * {@snippet lang=c :
     * __be32 words[5]
     * }
     */
    public static long[] words$dimensions() {
        return words$DIMS;
    }
    private static final VarHandle words$ELEM_HANDLE = words$LAYOUT.varHandle(sequenceElement());

    /**
     * Indexed getter for field:
     * {@snippet lang=c :
     * __be32 words[5]
     * }
     */
    public static int words(MemorySegment union, long index0) {
        return (int)words$ELEM_HANDLE.get(union, 0L, index0);
    }

    /**
     * Indexed setter for field:
     * {@snippet lang=c :
     * __be32 words[5]
     * }
     */
    public static void words(MemorySegment union, long index0, int fieldValue) {
        words$ELEM_HANDLE.set(union, 0L, index0, 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 union
     */
    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);
    }
}