internal override void Visit(GetTxEntryRequest req)
{
this.HashId = req.TxId.ToString();
byte[][] keyBytes =
{
Encoding.ASCII.GetBytes(TxTableEntry.STATUS_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.COMMIT_TIME_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.COMMIT_LOWER_BOUND_STRING)
};
this.RedisReq = new RedisRequest(this.HashId, keyBytes, RedisRequestType.HMGet)
{
ParentRequest = req
};
}
internal override void Visit(GetTxEntryRequest req)
{
TxTableEntry txEntry = req.RemoteTxEntry;
if (txEntry == null)
{
txEntry = txTable[req.TxId];
req.RemoteTxEntry = txEntry;
}
TxTableEntry.CopyValue(txEntry, req.LocalTxEntry);
req.Result = req.LocalTxEntry;
req.Finished = true;
}
internal override void Visit(GetTxEntryRequest req)
{
byte[][] valueBytes = req.Result as byte[][];
if (valueBytes == null || valueBytes.Length == 0)
{
req.Result = null;
}
else
{
TxTableEntry txEntry = req.LocalTxEntry;
txEntry.Set(
req.TxId,
(TxStatus)BitConverter.ToInt32(valueBytes[0], 0),
BitConverter.ToInt64(valueBytes[1], 0),
BitConverter.ToInt64(valueBytes[2], 0));
req.Result = txEntry;
}
}
internal override void Visit(GetTxEntryRequest req)
{
string hashId = req.TxId.ToString();
if (this.redisVersionDbMode == RedisVersionDbMode.Cluster)
{
hashId = RedisVersionDb.PACK_KEY(RedisVersionDb.TX_KEY_PREFIX, hashId);
}
byte[][] keyBytes =
{
Encoding.ASCII.GetBytes(TxTableEntry.STATUS_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.COMMIT_TIME_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.COMMIT_LOWER_BOUND_STRING)
};
RedisRequest redisReq = this.NextRedisRequest();
redisReq.Set(hashId, keyBytes, RedisRequestType.HMGet);
redisReq.ParentRequest = req;
}
internal override void Visit(GetTxEntryRequest req)
{
TxTableEntry txEntry = req.RemoteTxEntry;
if (txEntry == null || req.TxId != txEntry.TxId)
{
if (!this.txTable.TryGetValue(req.TxId, out txEntry))
{
throw new TransactionException("The specified tx does not exist.");
}
// return back the txEntry
req.RemoteTxEntry = txEntry;
}
while (Interlocked.CompareExchange(ref txEntry.latch, 1, 0) != 0)
{
;
}
TxTableEntry.CopyValue(txEntry, req.LocalTxEntry);
Interlocked.Exchange(ref txEntry.latch, 0);
req.Result = req.LocalTxEntry;
req.Finished = true;
}
internal virtual void Visit(GetTxEntryRequest req)
{
}