public ByteBuffer Find(ByteBuffer key)
{
using TikvConnection connection = new TikvConnection(Database.DatabaseUrl);
connection.Open();
using TikvTransaction transaction = connection.BeginTransaction();
var result = Tikv.Driver.Get(transaction.TransactionId, WithKeyspace(key));
transaction.Commit();
return(result);
}
public long Walk(Func <byte[], byte[], bool> callback)
{
using TikvConnection connection = new TikvConnection(Database.DatabaseUrl);
connection.Open();
using TikvTransaction transaction = connection.BeginTransaction();
long result = Tikv.Driver.Scan(transaction.TransactionId, KeyPrefix, callback);
transaction.Commit();
return(result);
}
public override void Flush(Checkpoint sync, Action flushAction)
{
try
{
for (int i = 0; i < 60; ++i)
{
using TikvConnection connection = new TikvConnection(DatabaseUrl);
connection.Open();
CheckpointTikvConnection = connection;
var Transaction = connection.BeginTransaction();
try
{
flushAction();
if (null != sync) // null for test
{
CommitReady.Set();
sync.WaitAllReady();
}
Transaction.Commit();
return;
}
catch (Exception ex)
{
CommitReady.Reset();
Transaction.Rollback();
logger.Warn(ex, "Checkpoint error.");
}
Thread.Sleep(1000);
}
logger.Fatal("Checkpoint too many try.");
Environment.Exit(54321);
}
finally
{
CheckpointTikvConnection = null;
}
}
internal TikvTransaction(TikvConnection conn)
{
Connection = conn;
TransactionId = Tikv.Driver.Begin(conn.ClientId);
}
