/// <summary>递减，原子操作</summary>
/// <param name="key">键</param>
/// <param name="value">变化量</param>
/// <returns></returns>
public override Int64 Decrement(String key, Int64 value)
{
var ms = Pool.MemoryStream.Get();
ms.WriteArray(key.GetBytes());
ms.Write(value.GetBytes());
var rs = Invoke <Packet>(nameof(Decrement), ms.Put(true));
if (rs == null || rs.Total == 0)
{
return(0);
}
return(rs.ReadBytes(0, 8).ToLong());
}
/// <summary>
/// Writes int64 data into internal buffer.
/// </summary>
/// <param name="data">int64 data to write.</param>
protected void Write(Int64 data)
{
this.Write(data.GetBytes());
}
public static IEnumerable <byte> Concat(this IEnumerable <byte> sequence, Int64 value)
{
return(sequence.Concat(value.GetBytes()));
}
public BinaryWriter Write(Int64 value)
{
byteList.AddRange(value.GetBytes());
return(this);
}