private void ReceiveEvent()
{
//Log.Info("Receive Event: " + eventArgs.BytesTransferred + "," + dataOffset + "," + dataLength + "," + inHeader);
if (usingSocketTimeout)
{
eventReceived = true;
}
if (eventArgs.BytesTransferred <= 0)
{
ConnectionFailed(new AerospikeException.Connection("Connection closed"));
return;
}
dataOffset += eventArgs.BytesTransferred;
if (dataOffset < dataLength)
{
eventArgs.SetBuffer(dataOffset, dataLength - dataOffset);
Receive();
return;
}
dataOffset = segment.offset;
if (inHeader)
{
long proto = ByteUtil.BytesToLong(dataBuffer, dataOffset);
int length = (int)(proto & 0xFFFFFFFFFFFFL);
if (length <= 0)
{
ReceiveBegin();
return;
}
compressed = ((proto >> 48) & 0xFF) == (long)Command.MSG_TYPE_COMPRESSED;
inHeader = false;
if (length > segment.size)
{
ResizeBuffer(length);
dataBuffer = segment.buffer;
dataOffset = segment.offset;
}
eventArgs.SetBuffer(dataBuffer, dataOffset, length);
dataLength = dataOffset + length;
Receive();
}
else
{
if (inAuthenticate)
{
inAuthenticate = false;
inHeader = true;
int resultCode = dataBuffer[dataOffset + 1];
if (resultCode != 0 && resultCode != ResultCode.SECURITY_NOT_ENABLED)
{
// Authentication failed. Session token probably expired.
// Signal tend thread to perform node login, so future
// transactions do not fail.
node.SignalLogin();
// This is a rare event because the client tracks session
// expiration and will relogin before session expiration.
// Do not try to login on same socket because login can take
// a long time and thousands of simultaneous logins could
// overwhelm server.
throw new AerospikeException(resultCode);
}
ConnectionReady();
return;
}
conn.UpdateLastUsed();
if (compressed)
{
int usize = (int)ByteUtil.BytesToLong(dataBuffer, dataOffset);
dataOffset += 8;
byte[] ubuf = new byte[usize];
ByteUtil.Decompress(dataBuffer, dataOffset, dataLength, ubuf, usize);
dataBuffer = ubuf;
dataOffset = 8;
dataLength = usize;
}
ParseCommand();
}
}
protected internal override void ParseResult(Connection conn)
{
// Read header.
conn.ReadFully(dataBuffer, 8);
long sz = ByteUtil.BytesToLong(dataBuffer, 0);
int receiveSize = (int)(sz & 0xFFFFFFFFFFFFL);
if (receiveSize <= 0)
{
throw new AerospikeException("Invalid receive size: " + receiveSize);
}
SizeBuffer(receiveSize);
conn.ReadFully(dataBuffer, receiveSize);
conn.UpdateLastUsed();
ulong type = (ulong)((sz >> 48) & 0xff);
if (type == Command.AS_MSG_TYPE)
{
dataOffset = 5;
}
else if (type == Command.MSG_TYPE_COMPRESSED)
{
int usize = (int)ByteUtil.BytesToLong(dataBuffer, 0);
byte[] ubuf = new byte[usize];
ByteUtil.Decompress(dataBuffer, 8, receiveSize, ubuf, usize);
dataBuffer = ubuf;
dataOffset = 13;
}
else
{
throw new AerospikeException("Invalid proto type: " + type + " Expected: " + Command.AS_MSG_TYPE);
}
int resultCode = dataBuffer[dataOffset];
dataOffset++;
int generation = ByteUtil.BytesToInt(dataBuffer, dataOffset);
dataOffset += 4;
int expiration = ByteUtil.BytesToInt(dataBuffer, dataOffset);
dataOffset += 8;
int fieldCount = ByteUtil.BytesToShort(dataBuffer, dataOffset);
dataOffset += 2;
int opCount = ByteUtil.BytesToShort(dataBuffer, dataOffset);
dataOffset += 2;
if (resultCode == 0)
{
if (opCount == 0)
{
// Bin data was not returned.
record = new Record(null, generation, expiration);
return;
}
record = ParseRecord(opCount, fieldCount, generation, expiration);
return;
}
if (resultCode == ResultCode.KEY_NOT_FOUND_ERROR)
{
HandleNotFound(resultCode);
return;
}
if (resultCode == ResultCode.FILTERED_OUT)
{
if (policy.failOnFilteredOut)
{
throw new AerospikeException(resultCode);
}
return;
}
if (resultCode == ResultCode.UDF_BAD_RESPONSE)
{
record = ParseRecord(opCount, fieldCount, generation, expiration);
HandleUdfError(resultCode);
return;
}
throw new AerospikeException(resultCode);
}
protected internal sealed override void ParseResult(Connection conn)
{
// Read blocks of records. Do not use thread local receive buffer because each
// block will likely be too big for a cache. Also, scan callbacks can nest
// further database commands which would contend with the thread local receive buffer.
// Instead, use separate heap allocated buffers.
byte[] protoBuf = new byte[8];
byte[] buf = null;
byte[] ubuf = null;
int receiveSize;
while (true)
{
// Read header
conn.ReadFully(protoBuf, 8);
long proto = ByteUtil.BytesToLong(protoBuf, 0);
int size = (int)(proto & 0xFFFFFFFFFFFFL);
if (size <= 0)
{
continue;
}
// Prepare buffer
if (buf == null || size > buf.Length)
{
// Corrupted data streams can result in a huge length.
// Do a sanity check here.
if (size > MAX_BUFFER_SIZE)
{
throw new AerospikeException("Invalid proto size: " + size);
}
int capacity = (size + 16383) & ~16383; // Round up in 16KB increments.
buf = new byte[capacity];
}
// Read remaining message bytes in group.
conn.ReadFully(buf, size);
conn.UpdateLastUsed();
ulong type = (ulong)((proto >> 48) & 0xff);
if (type == Command.AS_MSG_TYPE)
{
dataBuffer = buf;
dataOffset = 0;
receiveSize = size;
}
else if (type == Command.MSG_TYPE_COMPRESSED)
{
int usize = (int)ByteUtil.BytesToLong(buf, 0);
if (ubuf == null || usize > ubuf.Length)
{
if (usize > MAX_BUFFER_SIZE)
{
throw new AerospikeException("Invalid proto size: " + usize);
}
int capacity = (usize + 16383) & ~16383; // Round up in 16KB increments.
ubuf = new byte[capacity];
}
ByteUtil.Decompress(buf, 8, size, ubuf, usize);
dataBuffer = ubuf;
dataOffset = 8;
receiveSize = usize;
}
else
{
throw new AerospikeException("Invalid proto type: " + type + " Expected: " + Command.AS_MSG_TYPE);
}
if (!ParseGroup(receiveSize))
{
break;
}
}
}