public static void Do(Db db)
{
try
{
int next = TransJob2.NextNumber();
if (next % 4 == 0)
{
var d = new BinaryData()
{
Id = next,
Value = -next,
Data = BitConverter.GetBytes(next)
};
using (var trans = new LinqdbTransaction())
{
db.Table <BinaryData>(trans).Save(d);
trans.Commit();
}
lock (_lock)
{
numbers.Add(next);
}
}
else if (next % 4 == 1)
{
int to_read = 0;
lock (_lock)
{
if (!numbers.Any())
{
return;
}
to_read = numbers[rg.Next() % numbers.Count];
}
var entity = db.Table <BinaryData>().Where(f => f.Id == to_read).SelectEntity().FirstOrDefault();
if (entity == null)
{
lock (_lock)
{
if (numbers.Contains(to_read))
{
throw new Exception("Assert failure 2");
}
else
{
return;
}
}
}
if (entity.Id != to_read || BitConverter.ToInt32(entity.Data, 0) != to_read || !(entity.Value == -to_read || entity.Value == null))
{
throw new Exception("Assert failure 3");
}
}
else if (next % 4 == 2)
{
int to_delete = 0;
lock (_lock)
{
if (!numbers.Any())
{
return;
}
to_delete = numbers[rg.Next() % numbers.Count];
while (numbers.Contains(to_delete))
{
numbers.Remove(to_delete);
}
}
using (var trans = new LinqdbTransaction())
{
db.Table <BinaryData>(trans).Delete(to_delete);
trans.Commit();
}
}
else
{
int to_update = 0;
lock (_lock)
{
if (!numbers.Any())
{
return;
}
to_update = numbers[rg.Next() % numbers.Count];
}
var val = db.Table <BinaryData>().Where(f => f.Id == to_update).Select(f => new { Value = f.Value }).FirstOrDefault();
if (val == null)
{
lock (_lock)
{
if (numbers.Contains(to_update))
{
throw new Exception("Assert failure 4");
}
else
{
return;
}
}
}
using (var trans = new LinqdbTransaction())
{
db.Table <BinaryData>(trans).Update(f => f.Value, to_update, (int?)null);
trans.Commit();
}
}
}
catch (Exception ex)
{
Console.WriteLine("TransParallel2: " + ex.Message);
lock (_lock)
{
errors++;
}
}
}
