public async Task <bool> ExistsAsync(MyCatRelationalConnection conn, bool retryOnNotExists, CancellationToken cancellationToken)
{
var retryCount = 0;
while (true)
{
try
{
await conn.OpenAsync(cancellationToken);
conn.Close();
return(true);
}
catch (MyCatException e)
{
if (!retryOnNotExists &&
IsDoesNotExist(e))
{
return(false);
}
if (!RetryOnExistsFailure(e, ref retryCount))
{
throw;
}
}
}
}
public bool Exists(MyCatRelationalConnection conn, bool retryOnNotExists = false)
{
var retryCount = 0;
var giveUp = DateTime.UtcNow + TimeSpan.FromMinutes(1);
while (true)
{
try
{
conn.Open();
conn.Close();
return(true);
}
catch (MyCatException e)
{
if (!retryOnNotExists &&
IsDoesNotExist(e))
{
return(false);
}
if (DateTime.UtcNow > giveUp ||
!RetryOnExistsFailure(e, ref retryCount))
{
throw;
}
}
}
}
