/// <summary>
/// Validates buffer capacity before writing into it.
/// </summary>
/// <param name="nextValueLength">Length of next bytes sequence to write into buffer.</param>
private void ValidateBufferSize(int nextValueLength)
{
if (m_Offset + nextValueLength > m_Buffer.Length)
{
L2Buffer.Extend(ref m_Buffer, nextValueLength + m_DefaultOverflowValue);
}
}
/// <summary>
/// Writes array of <see cref="byte"/> into packet buffer.
/// </summary>
/// <param name="v">Array of <see cref="byte"/> values.</param>
public unsafe void WriteBytesArray(byte[] v)
{
int length = v.Length;
ValidateBufferSize(length);
L2Buffer.Copy(v, 0, m_Buffer, m_Offset, length);
m_Offset += length;
}
/// <summary>
/// Returns string representation of current packet.
/// </summary>
/// <returns>String representation of current packet.</returns>
public override string ToString()
{
//System.Text.StringBuilder sb = new System.Text.StringBuilder();
//sb.AppendLine("Packet dump:");
//sb.AppendFormat("1s op: {0}{2}2d op: {1}{2}", FirstOpcode, SecondOpcode, Environment.NewLine);
//sb.Append(L2Buffer.ToString(m_Buffer));
//return sb.ToString();
return(L2Buffer.ToString(m_Buffer));
}
/// <summary>
/// Reads array of <see cref="byte"/> values from packet buffer.
/// </summary>
/// <param name="length">Length of array to read.</param>
/// <returns>Array of <see cref="byte"/> values.</returns>
public unsafe byte[] ReadBytesArray(int length)
{
byte[] dest = new byte[length];
fixed(byte *buf = m_Buffer, dst = dest)
L2Buffer.Copy(buf, length, dst, ref m_Offset);
return(dest);
}
/// <summary>
/// Writes array of <see cref="long"/> values into packet buffer.
/// </summary>
/// <param name="v">Array of <see cref="long"/> values.</param>
public unsafe void WriteLong(params long[] v)
{
int length = v.Length * sizeof(long);
ValidateBufferSize(length);
fixed(byte *buf = m_Buffer)
fixed(long *w = v)
L2Buffer.UnsafeCopy(w, length, buf, ref m_Offset);
}
/// <summary>
/// Writes array of <see cref="double"/> values into packet buffer.
/// </summary>
/// <param name="v">Array of <see cref="double"/> values.</param>
public unsafe void WriteDouble(params double[] v)
{
int length = v.Length * sizeof(double);
ValidateBufferSize(length);
fixed(byte *buf = m_Buffer)
fixed(double *w = v)
L2Buffer.UnsafeCopy(w, length, buf, ref m_Offset);
}
/// <summary>
/// Writes array of <see cref="int"/> values into packet buffer.
/// </summary>
/// <param name="v">Array of <see cref="int"/> values.</param>
public unsafe void WriteInt(params int[] v)
{
int length = v.Length * sizeof(int);
ValidateBufferSize(Length);
fixed(byte *buf = m_Buffer)
fixed(int *w = v)
L2Buffer.UnsafeCopy(w, length, buf, ref m_Offset);
}
/// <summary>
/// Writes <see cref="string"/> object into packet buffer.
/// </summary>
/// <param name="s"><see cref="string"/> value.</param>
public unsafe void WriteString(string s)
{
s += '\0';
int length = s.Length * sizeof(char);
ValidateBufferSize(length);
fixed(byte *buf = m_Buffer)
fixed(char *w = s)
L2Buffer.UnsafeCopy(w, length, buf, ref m_Offset);
}
/// <summary>
/// Writes array of <see cref="string"/> values to packet buffer.
/// </summary>
/// <param name="s">Array of <see cref="string"/> values.</param>
public unsafe void WriteString(params string[] s)
{
string v = String.Empty;
for (int i = 0; i < s.Length; i++)
{
v += s[i] + '\0';
}
int length = v.Length * sizeof(char);
ValidateBufferSize(length);
fixed(byte *buf = m_Buffer)
fixed(char *w = v)
L2Buffer.UnsafeCopy(w, length, buf, ref m_Offset);
}
/// <summary>
/// Resizes <see cref="Packet"/> buffer to it's actual capacity and appends buffer length to the beginning of <see cref="Packet"/> buffer.
/// </summary>
/// <param name="headerSize"><see cref="Packet"/> header (opcodes) capacity.</param>
public unsafe void Prepare(int headerSize)
{
m_Offset += headerSize;
L2Buffer.Extend(ref m_Buffer, headerSize, m_Offset);
fixed(byte *buf = m_Buffer)
{
if (headerSize == sizeof(short))
{
*(( short * )(buf)) = ( short )m_Offset;
}
else
{
*(( int * )(buf)) = m_Offset;
}
}
}
/// <summary>
/// Returns packet buffer.
/// </summary>
/// <param name="skipFirstBytesCount">Amount of first bytes to skip.</param>
/// <returns>Buffer without provided amount of first bytes.</returns>
public byte[] GetBuffer(int skipFirstBytesCount)
{
return(L2Buffer.Copy(m_Buffer, skipFirstBytesCount, new byte[m_Buffer.Length - skipFirstBytesCount], 0, m_Buffer.Length - skipFirstBytesCount));
}
/// <summary>
/// Reads <see cref="string"/> value from packet buffer.
/// </summary>
/// <returns><see cref="string"/> value.</returns>
public unsafe string ReadString()
{
fixed(byte *buf = m_Buffer)
return(L2Buffer.GetTrimmedString(buf, ref m_Offset, m_Buffer.Length));
}
