void IMySqlValue.SkipValue(MySqlStream stream)
{
int len = stream.ReadByte();
stream.SkipBytes(len);
}
void IMySqlValue.SkipValue(MySqlStream stream)
{
stream.ReadByte();
}
IMySqlValue IMySqlValue.ReadValue(MySqlStream stream, long length, bool nullVal)
{
if (nullVal) return new MySqlTimeSpan(true);
if (length >= 0)
{
string value = stream.ReadString(length);
ParseMySql(value, stream.Version.isAtLeast(4, 1, 0));
return this;
}
long bufLength = stream.ReadByte();
int negate = 0;
if (bufLength > 0)
negate = stream.ReadByte();
isNull = false;
if (bufLength == 0)
isNull = true;
else if (bufLength == 5)
mValue = new TimeSpan(stream.ReadInteger(4), 0, 0, 0);
else if (bufLength == 8)
mValue = new TimeSpan(stream.ReadInteger(4),
stream.ReadByte(), stream.ReadByte(), stream.ReadByte());
else
mValue = new TimeSpan(stream.ReadInteger(4),
stream.ReadByte(), stream.ReadByte(), stream.ReadByte(),
stream.ReadInteger(4) / 1000000);
if (negate == 1)
mValue = mValue.Negate();
return this;
}
void IMySqlValue.SkipValue(MySqlStream stream)
{
long len = stream.ReadByte();
stream.SkipBytes((int)len);
}
IMySqlValue IMySqlValue.ReadValue(MySqlStream stream, long length, bool nullVal)
{
if (nullVal)
return new MySqlByte(true);
if (length == -1)
return new MySqlByte((sbyte)stream.ReadByte());
else
{
string s = stream.ReadString(length);
MySqlByte b = new MySqlByte(SByte.Parse(s, NumberStyles.Any, CultureInfo.InvariantCulture));
b.TreatAsBoolean = TreatAsBoolean;
return b;
}
}
public override void Open()
{
base.Open();
// connect to one of our specified hosts
try
{
#if !CF
if (Settings.ConnectionProtocol == MySqlConnectionProtocol.SharedMemory)
{
SharedMemoryStream str = new SharedMemoryStream(Settings.SharedMemoryName);
str.Open(Settings.ConnectionTimeout);
baseStream = str;
}
else
{
#endif
string pipeName = Settings.PipeName;
if (Settings.ConnectionProtocol != MySqlConnectionProtocol.NamedPipe)
pipeName = null;
StreamCreator sc = new StreamCreator(Settings.Server, Settings.Port, pipeName);
baseStream = sc.GetStream(Settings.ConnectionTimeout);
#if !CF
}
#endif
if (baseStream == null)
throw new Exception();
}
catch (Exception ex)
{
throw new MySqlException(Resources.UnableToConnectToHost,
(int) MySqlErrorCode.UnableToConnectToHost, ex);
}
if (baseStream == null)
throw new MySqlException("Unable to connect to any of the specified MySQL hosts");
int maxSinglePacket = 255*255*255;
stream = new MySqlStream(baseStream, encoding, false);
// read off the welcome packet and parse out it's values
stream.OpenPacket();
protocol = stream.ReadByte();
string versionString = stream.ReadString();
version = DBVersion.Parse(versionString);
threadId = stream.ReadInteger(4);
encryptionSeed = stream.ReadString();
if (version.isAtLeast(4, 0, 8))
maxSinglePacket = (256*256*256) - 1;
// read in Server capabilities if they are provided
serverCaps = 0;
if (stream.HasMoreData)
serverCaps = (ClientFlags) stream.ReadInteger(2);
if (version.isAtLeast(4, 1, 1))
{
/* New protocol with 16 bytes to describe server characteristics */
serverCharSetIndex = stream.ReadInteger(1);
serverStatus = (ServerStatusFlags) stream.ReadInteger(2);
stream.SkipBytes(13);
string seedPart2 = stream.ReadString();
encryptionSeed += seedPart2;
}
// based on our settings, set our connection flags
SetConnectionFlags();
stream.StartOutput(0, false);
stream.WriteInteger((int) connectionFlags,
version.isAtLeast(4, 1, 0) ? 4 : 2);
#if !CF
if (connectionString.UseSSL && (serverCaps & ClientFlags.SSL) != 0)
{
stream.Flush();
StartSSL();
stream.StartOutput(0, false);
stream.WriteInteger((int) connectionFlags,
version.isAtLeast(4, 1, 0) ? 4 : 2);
}
#endif
stream.WriteInteger(maxSinglePacket,
version.isAtLeast(4, 1, 0) ? 4 : 3);
if (version.isAtLeast(4, 1, 1))
{
stream.WriteByte(8);
stream.Write(new byte[23]);
}
Authenticate();
// if we are using compression, then we use our CompressedStream class
// to hide the ugliness of managing the compression
if ((connectionFlags & ClientFlags.COMPRESS) != 0)
stream = new MySqlStream(baseStream, encoding, true);
// give our stream the server version we are connected to.
// We may have some fields that are read differently based
// on the version of the server we are connected to.
stream.Version = version;
stream.MaxBlockSize = maxSinglePacket;
isOpen = true;
}
IMySqlValue IMySqlValue.ReadValue(MySqlStream stream, long length, bool nullVal)
{
if (nullVal) return new MySqlDateTime(type, true);
if (length >= 0)
{
string value = stream.ReadString(length);
return ParseMySql(value, stream.Version.isAtLeast(4, 1, 0));
}
long bufLength = stream.ReadByte();
int year = 0, month = 0, day = 0;
int hour = 0, minute = 0, second = 0;
if (bufLength >= 4)
{
year = stream.ReadInteger(2);
month = stream.ReadByte();
day = stream.ReadByte();
}
if (bufLength > 4)
{
hour = stream.ReadByte();
minute = stream.ReadByte();
second = stream.ReadByte();
}
if (bufLength > 7)
stream.ReadInteger(4);
return new MySqlDateTime(type, year, month, day, hour, minute, second);
}
IMySqlValue IMySqlValue.ReadValue(MySqlStream stream, long length, bool nullVal)
{
if (nullVal)
return new MySqlUByte(true);
if (length == -1)
return new MySqlUByte((byte)stream.ReadByte());
else
return new MySqlUByte(Byte.Parse(stream.ReadString(length)));
}
public override void Open()
{
base.Open();
// connect to one of our specified hosts
try
{
#if !CF
if (Settings.ConnectionProtocol == MySqlConnectionProtocol.SharedMemory)
{
SharedMemoryStream str = new SharedMemoryStream(Settings.SharedMemoryName);
str.Open(Settings.ConnectionTimeout);
baseStream = str;
}
else
{
#endif
string pipeName = Settings.PipeName;
if (Settings.ConnectionProtocol != MySqlConnectionProtocol.NamedPipe)
{
pipeName = null;
}
StreamCreator sc = new StreamCreator(Settings.Server, Settings.Port, pipeName);
baseStream = sc.GetStream(Settings.ConnectionTimeout);
#if !CF
}
#endif
if (baseStream == null)
{
throw new Exception();
}
}
catch (Exception ex)
{
throw new MySqlException(Resources.UnableToConnectToHost,
(int)MySqlErrorCode.UnableToConnectToHost, ex);
}
if (baseStream == null)
{
throw new MySqlException("Unable to connect to any of the specified MySQL hosts");
}
int maxSinglePacket = 255 * 255 * 255;
stream = new MySqlStream(baseStream, encoding, false);
// read off the welcome packet and parse out it's values
stream.OpenPacket();
protocol = stream.ReadByte();
string versionString = stream.ReadString();
version = DBVersion.Parse(versionString);
threadId = stream.ReadInteger(4);
encryptionSeed = stream.ReadString();
if (version.isAtLeast(4, 0, 8))
{
maxSinglePacket = (256 * 256 * 256) - 1;
}
// read in Server capabilities if they are provided
serverCaps = 0;
if (stream.HasMoreData)
{
serverCaps = (ClientFlags)stream.ReadInteger(2);
}
if (version.isAtLeast(4, 1, 1))
{
/* New protocol with 16 bytes to describe server characteristics */
serverCharSetIndex = stream.ReadInteger(1);
serverStatus = (ServerStatusFlags)stream.ReadInteger(2);
stream.SkipBytes(13);
string seedPart2 = stream.ReadString();
encryptionSeed += seedPart2;
}
// based on our settings, set our connection flags
SetConnectionFlags();
stream.StartOutput(0, false);
stream.WriteInteger((int)connectionFlags,
version.isAtLeast(4, 1, 0) ? 4 : 2);
#if !CF
if (connectionString.UseSSL && (serverCaps & ClientFlags.SSL) != 0)
{
stream.Flush();
StartSSL();
stream.StartOutput(0, false);
stream.WriteInteger((int)connectionFlags,
version.isAtLeast(4, 1, 0) ? 4 : 2);
}
#endif
stream.WriteInteger(maxSinglePacket,
version.isAtLeast(4, 1, 0) ? 4 : 3);
if (version.isAtLeast(4, 1, 1))
{
stream.WriteByte(8);
stream.Write(new byte[23]);
}
Authenticate();
// if we are using compression, then we use our CompressedStream class
// to hide the ugliness of managing the compression
if ((connectionFlags & ClientFlags.COMPRESS) != 0)
{
stream = new MySqlStream(baseStream, encoding, true);
}
// give our stream the server version we are connected to.
// We may have some fields that are read differently based
// on the version of the server we are connected to.
stream.Version = version;
stream.MaxBlockSize = maxSinglePacket;
isOpen = true;
}
private void ReadOk(bool read)
{
try
{
if (read)
{
stream.OpenPacket();
}
byte marker = (byte)stream.ReadByte();
if (marker != 0)
{
throw new MySqlException("Out of sync with server", true, null);
}
stream.ReadFieldLength(); /* affected rows */
stream.ReadFieldLength(); /* last insert id */
if (stream.HasMoreData)
{
serverStatus = (ServerStatusFlags)stream.ReadInteger(2);
stream.ReadInteger(2); /* warning count */
if (stream.HasMoreData)
{
stream.ReadLenString(); /* message */
}
}
}
catch (MySqlException ex)
{
if (ex.IsFatal)
{
isOpen = false;
Close();
}
throw;
}
}
private void ReadOk(bool read)
{
try
{
if (read)
{
stream.OpenPacket();
}
byte marker = (byte)stream.ReadByte();
if (marker != 0)
{
throw new MySqlException("Out of sync with server", true, null);
}
long affectedRows = stream.ReadFieldLength();
long lastInsertId = stream.ReadFieldLength();
if (stream.HasMoreData)
{
serverStatus = (ServerStatusFlags)stream.ReadInteger(2);
int warningCount = stream.ReadInteger(2);
if (stream.HasMoreData)
{
string msg = stream.ReadLenString();
}
}
}
catch (MySqlException ex)
{
if (ex.IsFatal)
{
isOpen = false;
Close();
}
throw;
}
}
public IMySqlValue ReadValue(MySqlStream stream, long length, bool isNull)
{
this.isNull = isNull;
if (isNull)
return this;
if (buffer == null)
buffer = new byte[8];
if (length == -1)
{
length = stream.ReadFieldLength();
}
Array.Clear(buffer, 0, buffer.Length);
for (long i = length - 1; i >= 0; i--)
buffer[i] = (byte)stream.ReadByte();
mValue = BitConverter.ToUInt64(buffer, 0);
return this;
}
