public async Task Initialize(long headLo, long headHi, long tailLo, long tailHi, SqlConnection conn)
{
if (linkState.Initialized)
{
return; //We ignore duplicate initialize messages.
}
LinkState initialized;
using (var initTransaction = conn.BeginTransaction())
{
initialized = linkState.Initialize(
InboxTable.Left(sourceKey, destinationKey), headLo, headHi,
InboxTable.Right(sourceKey, destinationKey), tailLo, tailHi);
await initialized.HeadSession.CreateConstraint(conn, initTransaction).ConfigureAwait(false);
await initialized.TailSession.CreateConstraint(conn, initTransaction).ConfigureAwait(false);
await linkStateTable.Update(sourceKey, initialized, conn, initTransaction).ConfigureAwait(false);
initTransaction.Commit();
}
UpdateCachedLinkState(initialized);
}
public async Task Uninstall(string sourceKey, SqlConnection conn, SqlTransaction trans)
{
var linkStateTable = new LinkStateTable(destinationKey);
await linkStateTable.Drop(conn, trans).ConfigureAwait(false);
await new InboxTable(InboxTable.Left(sourceKey, destinationKey)).Drop(conn, trans).ConfigureAwait(false);
await new InboxTable(InboxTable.Right(sourceKey, destinationKey)).Drop(conn, trans).ConfigureAwait(false);
}