internal override void Visit(RecycleTxRequest req)
{
// RecycleTxRequest will be called at the begining of tx, the remoteEntry is supposed to be null
TxTableEntry txEntry = null;
if (!this.txTable.TryGetValue(req.TxId, out txEntry))
{
txEntry = new TxTableEntry(req.TxId);
if (!this.txTable.TryAdd(req.TxId, txEntry))
{
req.Result = false;
req.Finished = true;
return;
}
}
while (Interlocked.CompareExchange(ref txEntry.latch, 1, 0) != 0)
{
;
}
txEntry.Reset();
Interlocked.Exchange(ref txEntry.latch, 0);
req.RemoteTxEntry = txEntry;
req.Result = true;
req.Finished = true;
}
internal override void Visit(RecycleTxRequest req)
{
string hashId = req.TxId.ToString();
if (this.redisVersionDbMode == RedisVersionDbMode.Cluster)
{
hashId = RedisVersionDb.PACK_KEY(RedisVersionDb.TX_KEY_PREFIX, hashId);
}
byte[][] keysBytes =
{
Encoding.ASCII.GetBytes(TxTableEntry.TXID_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.STATUS_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.COMMIT_TIME_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.COMMIT_LOWER_BOUND_STRING)
};
byte[][] valuesBytes =
{
Encoding.ASCII.GetBytes(hashId),
BitConverter.GetBytes((int)TxStatus.Ongoing),
BitConverter.GetBytes(TxTableEntry.DEFAULT_COMMIT_TIME),
BitConverter.GetBytes(TxTableEntry.DEFAULT_LOWER_BOUND)
};
RedisRequest redisReq = this.NextRedisRequest();
redisReq.Set(hashId, keysBytes, valuesBytes, RedisRequestType.HMSet);
redisReq.ParentRequest = req;
}
internal override void Visit(RecycleTxRequest req)
{
// RecycleTxRequest is supposed to has no remoteTxEntry reference
TxTableEntry txEntry = null;
this.txTable.TryGetValue(req.TxId, out txEntry);
if (txEntry == null)
{
txEntry = new TxTableEntry(req.TxId);
this.txTable.Add(req.TxId, txEntry);
}
else
{
txEntry.Reset();
req.RemoteTxEntry = txEntry;
req.Result = true;
req.Finished = true;
}
}
internal override void Visit(RecycleTxRequest req)
{
this.HashId = req.TxId.ToString();
byte[][] keysBytes =
{
Encoding.ASCII.GetBytes(TxTableEntry.STATUS_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.COMMIT_TIME_STRING),
Encoding.ASCII.GetBytes(TxTableEntry.COMMIT_LOWER_BOUND_STRING)
};
byte[][] valuesBytes =
{
BitConverter.GetBytes((int)TxStatus.Ongoing),
BitConverter.GetBytes(TxTableEntry.DEFAULT_COMMIT_TIME),
BitConverter.GetBytes(TxTableEntry.DEFAULT_LOWER_BOUND)
};
this.RedisReq = new RedisRequest(this.HashId, keysBytes, valuesBytes, RedisRequestType.HMSet)
{
ParentRequest = req
};
}
internal override void Visit(RecycleTxRequest req)
{
// There is no response from HMSet, always set the result as successful
req.Result = true;
}
internal virtual void Visit(RecycleTxRequest req)
{
}