//internal bool IfWriteThread()
//{
// return (_masterTrie.NestedTablesCoordinator.ModificationThreadId == System.Threading.Thread.CurrentThread.ManagedThreadId);
//}
internal NestedTable GetTable <TKey>(TKey key, uint tableIndex, bool insertIsAllowed)
{
byte[] btKey = DataTypesConvertor.ConvertKey <TKey>(key);
LTrieRow row = null;
if (insertIsAllowed) //Insert of table is allowed by calls generation
{
row = table.GetKey(ref btKey, null);
return(table.GetTable(row, ref btKey, tableIndex, this._masterTrie, true, false));
}
//Only selects are allowed
if (_masterTrie.NestedTablesCoordinator.ModificationThreadId == System.Threading.Thread.CurrentThread.ManagedThreadId)
{
//This thread must NOT use cache
row = table.GetKey(ref btKey, null);
return(table.GetTable(row, ref btKey, tableIndex, this._masterTrie, false, false));
}
else
{
LTrieRootNode readRootNode = new LTrieRootNode(table);
row = table.GetKey(ref btKey, readRootNode);
return(table.GetTable(row, ref btKey, tableIndex, this._masterTrie, false, true));
}
}
private void ReadUserLastFileNumber()
{
byte[] btKeyName = Encoding.UTF8.GetBytes(LastFileNumberKeyName);
LTrieRow row = LTrie.GetKey(btKeyName, false, false);
if (row.Exists)
{
byte[] fullValue = row.GetFullValue(true);
LastFileNumber = fullValue.To_UInt64_BigEndian();
}
}
/// <summary>
/// Insert resource
/// </summary>
/// <typeparam name="TValue"></typeparam>
/// <param name="resourceName"></param>
/// <param name="resourceObject"></param>
/// <param name="resourceSettings">resource extra behaviour</param>
public void Insert <TValue>(string resourceName, TValue resourceObject, Settings resourceSettings = null)
{
if (String.IsNullOrEmpty(resourceName))
{
return;
}
if (resourceSettings == null)
{
resourceSettings = _defaultSetting;
}
string rn = _urp + resourceName;
byte[] btKey = DataTypesConvertor.ConvertKey <string>(rn);
byte[] btValue = DataTypesConvertor.ConvertValue <TValue>(resourceObject);
_sync.EnterWriteLock();
try
{
//------- Verification, to prevent storing of the identical value
if (resourceSettings.InsertWithVerification)
{
byte[] btExVal = null;
if (_d.TryGetValue(rn, out btExVal))
{
if (btExVal._ByteArrayEquals(btValue))
{
return;
}
}
else
{
//Grabbing from disk
if (resourceSettings.HoldOnDisk)
{
var row = LTrie.GetKey(btKey, false, false);
if (row.Exists)
{
btExVal = row.GetFullValue(false);
if (btExVal._ByteArrayEquals(btValue))
{
if (resourceSettings.HoldInMemory)
{
_d[rn] = btValue;
}
return;
}
}
}
}
}
//-------
if (resourceSettings.HoldOnDisk)
{
bool cov = LTrie.OverWriteIsAllowed;
if (resourceSettings.FastUpdates)
{
LTrie.OverWriteIsAllowed = false;
}
LTrie.Add(btKey, btValue);
LTrie.Commit();
if (resourceSettings.FastUpdates)
{
LTrie.OverWriteIsAllowed = cov;
}
}
if (resourceSettings.HoldInMemory)
{
_d[rn] = btValue;
}
}
catch (Exception ex)
{
throw DBreezeException.Throw(DBreezeException.eDBreezeExceptions.DBREEZE_RESOURCES_CONCERNING, "in Insert", ex);
}
finally
{
_sync.ExitWriteLock();
}
#region "remark"
// if (holdInMemory)
// {
// _sync.EnterWriteLock();
// try
// {
// _d[resourceName] = btValue;
// }
// catch (Exception ex)
// {
// throw ex;
// }
// finally
// {
// _sync.ExitWriteLock();
// }
// }
// Action a = () =>
// {
// _sync.EnterWriteLock();
// try
// {
// LTrie.Add(btKey, btValue);
// LTrie.Commit();
// }
// catch (Exception ex)
// {
// throw ex;
// }
// finally
// {
// _sync.ExitWriteLock();
// }
// };
//#if NET35 || NETr40 //The same must be use for .NET 4.0
// new System.Threading.Thread(new System.Threading.ThreadStart(() =>
// {
// a();
// })).Start();
//#else
// System.Threading.Tasks.Task.Run(() => {
// a();
// });
//#endif
#endregion
}
