public override void Commit()
{
MySqlStorageConnection.AttemptActionReturnObject(() =>
{
_storage.UseTransaction(connection =>
{
connection.EnlistTransaction(Transaction.Current);
foreach (var command in _commandQueue)
{
command(connection);
}
});
return(0);
});
}
private int AcquireLock(string resource, TimeSpan timeout)
{
return(MySqlStorageConnection.AttemptActionReturnObject(() =>
_storage.UseConnection(connection =>
connection
.Execute(
"INSERT INTO DistributedLock (Resource, CreatedAt) " +
" SELECT @resource, @now " +
" FROM dual " +
" WHERE NOT EXISTS ( " +
" SELECT * FROM DistributedLock "+
" WHERE Resource = @resource "+
" AND CreatedAt > @expired)",
new
{
resource,
now = DateTime.UtcNow,
expired = DateTime.UtcNow.Add(timeout.Negate())
}))
));
}
