DataflowMessageHeader.cs

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using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
 
namespace System.Threading.Tasks.Dataflow;
 
[DebuggerDisplay("Id = {Id}")]
public readonly struct DataflowMessageHeader : IEquatable<DataflowMessageHeader>
{
    private readonly long _id;
 
    public bool IsValid => _id != 0;
 
    public long Id => _id;
 
    public DataflowMessageHeader(long id)
    {
        if (id == 0L)
        {
            throw new ArgumentException(System.SR.Argument_InvalidMessageId, "id");
        }
        _id = id;
    }
 
    public bool Equals(DataflowMessageHeader other)
    {
        return this == other;
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        if (obj is DataflowMessageHeader)
        {
            return this == (DataflowMessageHeader)obj;
        }
        return false;
    }
 
    public override int GetHashCode()
    {
        return (int)Id;
    }
 
    public static bool operator ==(DataflowMessageHeader left, DataflowMessageHeader right)
    {
        return left.Id == right.Id;
    }
 
    public static bool operator !=(DataflowMessageHeader left, DataflowMessageHeader right)
    {
        return left.Id != right.Id;
    }
}