public void CommandCancellationTest()
{
if (GetServerVersion() < new Version("2.5.0.0"))
{
Assert.Inconclusive("Not supported on this version.");
return;
}
bool cancelled = false;
using (FbCommand cmd = Connection.CreateCommand())
{
cmd.CommandText =
@"execute block as
declare variable start_time timestamp;
begin
start_time = cast('now' as timestamp);
while (datediff(second from start_time to cast('now' as timestamp)) <= 10) do
begin
end
end";
cmd.BeginExecuteNonQuery(o =>
{
try
{
cmd.EndExecuteNonQuery(o as IAsyncResult);
}
catch (FbException ex)
{
cancelled = "HY008" == ex.SQLSTATE;
}
}, null);
System.Threading.Thread.Sleep(2000);
cmd.Cancel();
System.Threading.Thread.Sleep(2000);
Assert.IsTrue(cancelled);
}
}