internal override void Visit(UpdateVersionMaxCommitTsRequest req)
{
VersionEntry verEntry = req.RemoteVerEntry;
if (verEntry == null)
{
throw new TransactionException("The version entry should be referenced for main-memory k-v.");
}
if (verEntry.VersionKey != req.VersionKey)
{
throw new TransactionException("The referenced version entry has been recycled for new data.");
}
while (Interlocked.CompareExchange(ref verEntry.latch, 1, 0) != 0)
{
;
}
verEntry.MaxCommitTs = Math.Max(req.MaxCommitTs, verEntry.MaxCommitTs);
VersionEntry.CopyValue(verEntry, req.LocalVerEntry);
Interlocked.Exchange(ref verEntry.latch, 0);
req.Result = req.LocalVerEntry;
req.Finished = true;
}
internal override void Visit(UpdateVersionMaxCommitTsRequest req)
{
VersionEntry verEntry = req.RemoteVerEntry;
if (verEntry == null)
{
ConcurrentDictionary <long, VersionEntry> versionList = null;
if (!this.dict.TryGetValue(req.RecordKey, out versionList))
{
throw new TransactionException("The specified record does not exist.");
}
if (!versionList.TryGetValue(req.VersionKey, out verEntry))
{
throw new TransactionException("The specified version does not exist.");
}
}
Debug.Assert(verEntry.VersionKey == req.VersionKey);
//int ticket = verEntry.EnterQueuedLatch();
verEntry.WriteLock();
Interlocked.Exchange(
ref verEntry.MaxCommitTs,
Math.Max(req.MaxCommitTs, Interlocked.Read(ref verEntry.MaxCommitTs)));
VersionEntry.CopyFromRemote(verEntry, req.LocalVerEntry);
//verEntry.ExitQueuedLatch(ticket);
verEntry.UnWriteLock();
req.Result = req.LocalVerEntry;
req.Finished = true;
}
internal override void Visit(UpdateVersionMaxCommitTsRequest req)
{
this.CQLExecuteWithIfApplied(string.Format(CassandraVersionTable.CQL_UPDATE_MAX_COMMIT_TIMESTAMP,
req.TableId, req.MaxCommitTs, req.RecordKey.ToString(), req.VersionKey));
req.Result = this.GetVersionEntryByKey(req.TableId, req.RecordKey, req.VersionKey);
req.Finished = true;
}
internal override void Visit(UpdateVersionMaxCommitTsRequest req)
{
byte[][] returnBytes = req.Result as byte[][];
req.Result = returnBytes == null || returnBytes.Length < 2 ?
null :
VersionEntry.Deserialize(
req.VersionKey,
returnBytes.ValueBytes(), req.LocalVerEntry);
}
internal override void Visit(UpdateVersionMaxCommitTsRequest req)
{
VersionEntry ve = this.GetVersionEntryByKey(req.TableId, req.RecordKey, req.VersionKey, req.LocalVerEntry);
if (ve.MaxCommitTs < req.MaxCommitTs)
{
this.CQLExecute(string.Format(PartitionedCassandraVersionTable.CQL_UPDATE_MAX_COMMIT_TIMESTAMP,
req.TableId, req.MaxCommitTs, req.RecordKey.ToString(), req.VersionKey));
ve.MaxCommitTs = req.MaxCommitTs;
}
req.Result = ve;
req.Finished = true;
}
internal override void Visit(UpdateVersionMaxCommitTsRequest req)
{
string sha1 = this.redisLuaScriptManager.GetLuaScriptSha1(LuaScriptName.UPDATE_VERSION_MAX_COMMIT_TS);
this.HashId = req.RecordKey as string;
byte[][] keysAndArgs =
{
Encoding.ASCII.GetBytes(this.HashId),
BitConverter.GetBytes(req.VersionKey),
BitConverter.GetBytes(req.MaxCommitTs),
RedisVersionDb.NEGATIVE_ONE_BYTES,
};
this.RedisReq = new RedisRequest(keysAndArgs, sha1, 1, RedisRequestType.EvalSha)
{
ParentRequest = req
};
}
internal override void Visit(UpdateVersionMaxCommitTsRequest req)
{
VersionEntry verEntry = req.RemoteVerEntry;
if (verEntry == null)
{
Dictionary <long, VersionEntry> versionList = null;
if (!this.dict.TryGetValue(req.RecordKey, out versionList) ||
!versionList.TryGetValue(req.VersionKey, out verEntry))
{
throw new TransactionException("The specified version does not exist.");
}
}
// Only update the max commit time when uploaded commit time is larger than the version's
verEntry.MaxCommitTs = Math.Max(verEntry.MaxCommitTs, req.MaxCommitTs);
VersionEntry.CopyValue(verEntry, req.LocalVerEntry);
req.Result = req.LocalVerEntry;
req.Finished = true;
}
internal override void Visit(UpdateVersionMaxCommitTsRequest req)
{
string sha1 = this.redisLuaManager.GetLuaScriptSha1(LuaScriptName.UPDATE_VERSION_MAX_COMMIT_TS);
string hashId = req.RecordKey.ToString();
if (this.redisVersionDbMode == RedisVersionDbMode.Cluster)
{
hashId = RedisVersionDb.PACK_KEY(RedisVersionDb.VER_KEY_PREFIX, hashId);
}
byte[][] keysAndArgs =
{
Encoding.ASCII.GetBytes(hashId),
BitConverter.GetBytes(req.VersionKey),
BitConverter.GetBytes(req.MaxCommitTs),
RedisVersionDb.NEGATIVE_ONE_BYTES,
};
RedisRequest redisReq = this.NextRedisRequest();
redisReq.Set(keysAndArgs, sha1, 1, RedisRequestType.EvalSha);
redisReq.ParentRequest = req;
}
internal virtual void Visit(UpdateVersionMaxCommitTsRequest req)
{
}
