/// <summary>
/// 转换为ArraySegment
/// </summary>
/// <param name="mask">是否打码</param>
/// <returns></returns>
public override unsafe ArraySegment <byte> ToArraySegment(bool mask)
{
var builder = new ByteBuilder(Endians.Big);
ByteBits bits = (byte)this.Frame;
bits[0] = this.Fin;
builder.Add(bits);
if (this.Content.Length > UInt16.MaxValue)
{
builder.Add(mask ? byte.MaxValue : (byte)127);
builder.Add((ulong)this.Content.Length);
}
else if (this.Content.Length > 125)
{
builder.Add(mask ? (byte)254 : (byte)126);
builder.Add((ushort)this.Content.Length);
}
else
{
var len = mask ? (byte)(this.Content.Length + 128) : (byte)this.Content.Length;
builder.Add(len);
}
if (mask == true)
{
var maskingKey = ByteConverter.ToBytes(ran.Next(), Endians.Big);
builder.Add(maskingKey);
fixed(byte *pcontent = &this.Content[0], pmask = &maskingKey[0])
{
for (var i = 0; i < this.Content.Length; i++)
{
*(pcontent + i) = (byte)(*(pcontent + i) ^ *(pmask + i % 4));
}
}
}
builder.Add(this.Content);
return(builder.ToArraySegment());
}
/// <summary>
/// 转换为ArraySegment
/// </summary>
/// <returns></returns>
public ArraySegment <byte> ToArraySegment()
{
var apiNameBytes = Encoding.UTF8.GetBytes(this.ApiName);
var headLength = apiNameBytes.Length + 16;
this.TotalBytes = this.Body == null ? headLength : headLength + this.Body.Length;
this.ApiNameLength = (byte)apiNameBytes.Length;
var builder = new ByteBuilder(Endians.Big);
builder.Add(FastPacket.Mark);
builder.Add(this.TotalBytes);
builder.Add(this.ApiNameLength);
builder.Add(apiNameBytes);
builder.Add(this.Id);
builder.Add(this.IsFromClient);
builder.Add(this.IsException);
builder.Add(this.Body);
return(builder.ToArraySegment());
}
/// <summary>
/// 输出内容块
/// </summary>
/// <param name="buffer">内容</param>
/// <param name="offset">偏移量</param>
/// <param name="count">长度</param>
/// <returns></returns>
private bool WirteChunked(byte[] buffer, int offset, int count)
{
if (this.writeEnd == true)
{
return(false);
}
var builder = new ByteBuilder(Endians.Big);
var size = Encoding.ASCII.GetBytes(Convert.ToString(count, 16));
builder.Add(size);
builder.Add(CRLF);
if (buffer != null)
{
builder.Add(buffer, offset, count);
}
builder.Add(CRLF);
if (count == 0)
{
builder.Add(CRLF);
}
return(this.response.WriteContent(builder.ToArraySegment()));
}