| public Read ( byte buffer, int offset, int count ) : void | ||
| buffer | byte | An array of |
| offset | int | The location in buffer to store the received data. |
| count | int | The number of bytes to read. |
| return | void | |
public static GetResponse ReadItem(PooledSocket socket)
{
string description = socket.ReadResponse();
if (String.Compare(description, "END", StringComparison.Ordinal) == 0)
{
return(null);
}
if (description.Length < 6 || String.Compare(description, 0, "VALUE ", 0, 6, StringComparison.Ordinal) != 0)
{
throw new MemcachedClientException("No VALUE response received.\r\n" + description);
}
ulong cas = 0;
string[] parts = description.Split(' ');
// response is:
// VALUE <key> <flags> <bytes> [<cas unique>]
// 0 1 2 3 4
//
// cas only exists in 1.2.4+
//
if (parts.Length == 5)
{
if (!UInt64.TryParse(parts[4], out cas))
{
throw new MemcachedClientException("Invalid CAS VALUE received.");
}
}
else if (parts.Length < 4)
{
throw new MemcachedClientException("Invalid VALUE response received: " + description);
}
ushort flags = UInt16.Parse(parts[2], CultureInfo.InvariantCulture);
int length = Int32.Parse(parts[3], CultureInfo.InvariantCulture);
byte[] allData = new byte[length];
byte[] eod = new byte[2];
socket.Read(allData, 0, length);
socket.Read(eod, 0, 2); // data is terminated by \r\n
GetResponse retval = new GetResponse(parts[1], flags, cas, allData);
if (log.IsDebugEnabled)
{
log.DebugFormat("Received value. Data type: {0}, size: {1}.", retval.Item.Flag, retval.Item.Data.Count);
}
return(retval);
}
public static GetResponse ReadItem(PooledSocket socket)
{
string description = socket.ReadResponse();
if (String.Compare(description, "END", StringComparison.Ordinal) == 0)
return null;
if (description.Length < 6 || String.Compare(description, 0, "VALUE ", 0, 6, StringComparison.Ordinal) != 0)
throw new MemcachedClientException("No VALUE response received.\r\n" + description);
ulong cas = 0;
string[] parts = description.Split(' ');
// response is:
// VALUE <key> <flags> <bytes> [<cas unique>]
// 0 1 2 3 4
//
// cas only exists in 1.2.4+
//
if (parts.Length == 5)
{
if (!UInt64.TryParse(parts[4], out cas))
throw new MemcachedClientException("Invalid CAS VALUE received.");
}
else if (parts.Length < 4)
{
throw new MemcachedClientException("Invalid VALUE response received: " + description);
}
ushort flags = UInt16.Parse(parts[2], CultureInfo.InvariantCulture);
int length = Int32.Parse(parts[3], CultureInfo.InvariantCulture);
byte[] allData = new byte[length];
byte[] eod = new byte[2];
socket.Read(allData, 0, length);
socket.Read(eod, 0, 2); // data is terminated by \r\n
GetResponse retval = new GetResponse(parts[1], flags, cas, allData);
if (log.IsDebugEnabled)
log.DebugFormat("Received value. Data type: {0}, size: {1}.", retval.Item.Flag, retval.Item.Data.Count);
return retval;
}
public unsafe bool Read(PooledSocket socket)
{
this.StatusCode = -1;
if (!socket.IsAlive)
return false;
var header = new byte[HeaderLength];
socket.Read(header, 0, header.Length);
int dataLength, extraLength;
DeserializeHeader(header, out dataLength, out extraLength);
var keyHeader = new byte[4];
socket.Read(keyHeader, 0, 4);
var vbucket = BinaryConverter.DecodeUInt16(keyHeader, 0);
var keylen = BinaryConverter.DecodeUInt16(keyHeader, 2);
var keyData = new byte[keylen];
socket.Read(keyData, 0, keylen);
Key = BinaryConverter.DecodeKey(keyData);
var keyStateData = new byte[1];
socket.Read(keyStateData, 0, keyStateData.Length);
KeyState = (ObserveKeyState)keyStateData[0];
var casData = new byte[8];
socket.Read(casData, 0, casData.Length);
Cas = BinaryConverter.DecodeUInt64(casData, 0);
return this.StatusCode == 0;
}