internal View SetView(Table tmp, string nm, mpIndexKey rky)
{
SyncView.WaitOne();
View vw;
if (ViewList.TryGetValue(rky, out vw))
{
vw.Grow();
SyncView.ReleaseMutex();
return(vw);
}
vw = new View();
if (nm == null || nm.Length == 0)
{
nm = Alias + ViewList.Count.ToString();
vw.delete = true;
}
DataFile.Blank(tmp, Struct.RowLength);
if (vw.MustBuild(nm, Struct.LastUpdate, rky, tmp))
{
long r, x;
x = Struct.RowCount;
for (r = 1; r <= x; r++)
{
Read(tmp, r);
vw.AddKey(tmp, r);
}
}
ViewList.Add(rky, vw);
SyncView.ReleaseMutex();
return(vw);
}
public void Open(mpIndexKey getKey, string xName)
{
if (LoTable != null)
{
Close();
}
TableFile.Open(Name, this, getKey, xName);
}
public bool MustBuild(string nm, DateTime udTime, mpIndexKey gk, Table obj)
{
string tk = gk(obj);
index = new Index(nm, (ushort)tk.Length, udTime);
getkey = gk;
count = 1;
return(index.Keys() == 0);
}
internal static void Open(string nm, Table obj, mpIndexKey gkey, string xn)
{
TableFile db;
SyncOpen.WaitOne();
if (OpenList.TryGetValue(nm, out db))
{
db.OpenCount++;
}
else
{
db = new TableFile();
db.Alias = nm;
db.File = DataFile.Open(nm, "Table", FileMode.Open);
db.Struct = new Struct();
int sz = DataFile.GetSize(db.Struct);
db.File.Read(db.Struct, DataFile.coSignatureSz, sz);
db.File.Lock(db.Struct);
db.OpenCount = 1;
db.Data = DataFile.coSignatureSz + sz;
long cz = db.Data + db.Struct.RowLength * db.Struct.RowCount;
long fz = db.File.LoFile.Length;
if (cz != fz)
{
db.Struct.LastUpdate = DateTime.Now;
db.File.Write(db.Struct);
db.File.CopyTo(String.Format("{0}{1:yyyy}{1:MM}{1:dd}{1:HH}{1:mm}{1:ss}", nm, db.Struct.LastUpdate), "BackupTable");
db.File.LoFile.SetLength(cz);
}
OpenList.Add(nm, db);
}
SyncOpen.ReleaseMutex();
obj.LoTable = db;
if (gkey == null)
{
obj.Order = null;
}
else
{
obj.Order = db.SetView(obj, xn, gkey);
}
obj.First();
}
