public void ResizeTable(uint tableID, int szDatum)
{
Assert(Tables[tableID] != null);
Assert(szDatum >= Tables[tableID].DatumSize);
lock (m_lock)
{
IDBTable tbl = GetTable(tableID, true);
if (tbl.DatumSize < szDatum)
{
string tmpFile = Path.GetTempFileName();
using (new AutoReleaser(() => File.Delete(tmpFile)))
using (FileStream fs = File.Create(tmpFile))
{
var tmpWriter = new RawDataWriter(fs, Encoding.UTF8);
IDBTableProvider dp = m_accessPath.GetDataProvider(tableID);
using (dp.Lock())
{
foreach (IDataRow row in dp.Enumerate())
{
row.Write(tmpWriter);
}
var tmpReader = new RawDataReader(fs, Encoding.UTF8);
int count = dp.Count;
BeginTableProcessing?.Invoke(tableID);
using (new AutoReleaser(() => EndTableProcessing?.Invoke(tableID)))
{
uint ver = tbl.Version;
uint tag = tbl.Tag;
dp.Disconnect();
tbl.Disconnect();
File.Delete(tbl.FilePath);
tbl.Create(szDatum, tag);
dp.Connect();
fs.Position = 0;
for (int i = 0; i < count; ++i)
{
IDataRow datum = m_dataFactory.CreateDatum(tableID);
datum.Read(tmpReader);
dp.Insert(datum);
}
tbl.Version = ver;
tbl.Flush();
}
}
}
}
}
}
public IDBTableProvider GetDataProvider(uint idTable)
{
Assert(m_tblManager.Tables[idTable] != null);
IDBTableProvider dp = m_providers.Find(item => item.DataSource.ID == idTable);
if (dp == null)
{
dp = m_tblManager.Tables[idTable].DataProvider;
m_providers.Add(dp);
}
if (!dp.IsConnected)
{
dp.Connect();
}
return(dp);
}