private static void WriteParameter(ref BinarySpanWriter writer, ReadOnlySpan <byte> parameterName, ReadOnlySpan <byte> parameterValue)
{
if (parameterValue != null)
{
writer.WriteSpan(parameterName);
writer.WriteSpan(parameterValue);
}
}
private static void WriteParameter(ref BinarySpanWriter writer, ReadOnlySpan <byte> parameterName, string parameterValue)
{
if (parameterValue != null)
{
writer.WriteSpan(parameterName);
writer.WriteNullTerminateUtf8String(parameterValue);
}
}
public void Write(Memory <byte> buffer)
{
var w = new BinarySpanWriter(buffer.Span);
w.WriteInt32(16);
w.WriteInt32(CancelRequestCode);
w.WriteInt32(m_processId);
w.WriteInt32(m_secretKey);
}
private int EncodePayload(Span <byte> span, ReadOnlySpan <char> securityToken, DateTime leaseEnd)
{
var writer = new BinarySpanWriter(span);
writer.Write(securityToken, lengthPrefix: true);
writer.WriteInt64(leaseEnd.Ticks);
return(writer.Length);
}
private void Encode(Span <byte> memory)
{
var writer = new BinarySpanWriter(memory, ByteOrder.LittleEndian);
writer.Write(EndPoint.Utf8EncodedValue.Span, lengthPrefix: true);
writer.Write(Module.Name.AsSpan(), lengthPrefix: true);
writer.WriteInt32(Version.MajorVersion);
writer.WriteInt32(Version.MinorVersion);
writer.WriteInt32(Version.Revision);
writer.WriteBool(Version.IsPreRelease);
Assert(memory.Length == writer.Length);
}
public void Write(Memory <byte> buffer)
{
Span <byte> hash = stackalloc byte[PgMD5Helper.PasswordHashLength];
PgMD5Helper.ComputePassword(m_user, m_password, m_salt.Span, hash);
var binaryWriter = new BinarySpanWriter(buffer.Span);
binaryWriter.WriteByte(FrontendMessageCode.Password);
binaryWriter.WriteInt32(sizeof(int) + PgMD5Helper.PasswordHashLength + 1);
hash.CopyTo(binaryWriter.Span);
binaryWriter.Advance(PgMD5Helper.PasswordHashLength);
binaryWriter.WriteByte(0);
}
public void Write(Memory <byte> buffer)
{
var w = new BinarySpanWriter(buffer.Span);
var size = buffer.Length;
w.WriteInt32(size);
w.WriteInt32(ProtocolVersion3);
WriteParameter(ref w, s_databaseParameterName, m_database);
WriteParameter(ref w, s_userParameterName, m_user);
WriteParameter(ref w, s_clientEncodingParameterName, s_clientEncodingDefaultParameterValue);
WriteParameter(ref w, s_applicationNameParameterName, m_applicationName);
WriteParameter(ref w, s_fallbackApplicationNameParameterName, m_fallbackApplicationName);
WriteParameter(ref w, s_searchPathParameterName, m_searchPath);
WriteParameter(ref w, s_timeZoneParameterName, m_timeZone);
w.WriteByte(0);
}
