public static void CommitTransaction()
{
lock (_lock) {
if (Transaction != null)
{
_timer.Dispose();
_timer = null;
if (ManagementUnit.CommitRequested)
{
try {
ManagementUnit.ServerManager.CommitChanges();
}
catch {
AbortTransaction();
throw;
}
}
Transaction = null;
ManagementUnit.Dispose();
ManagementUnit = null;
}
}
}
private async Task ProceedNoTransaction(HttpContext context)
{
using (var mu = new MgmtUnit()) {
context.SetManagementUnit(mu);
try {
await _next(context);
}
finally {
context.SetManagementUnit(null);
}
}
}
public static void AbortTransaction()
{
lock (_lock) {
if (_timer != null)
{
_timer.Dispose();
_timer = null;
}
Transaction = null;
if (ManagementUnit != null)
{
ManagementUnit.Dispose();
ManagementUnit = null;
}
}
}
public static Transaction BeginTransaction()
{
lock (_lock) {
if (Transaction == null)
{
var transaction = new Transaction();
transaction.ExpiresOn = transaction.CreatedOn.AddMilliseconds(TRANSACTION_IDLE_TIMEOUT);
_timer = new Timer(TimeoutCallback, null, TRANSACTION_IDLE_TIMEOUT, Timeout.Infinite);
ManagementUnit = new MgmtUnit();
Transaction = transaction;
}
}
return(Transaction);
}
public async Task Invoke(HttpContext context)
{
bool webServerTargetted = context.Request.Path.StartsWithSegments(WEBSERVER_PATH);
// Don't inject management unit if one already exists or the request isn't targetting the webserver
if (context.GetManagementUnit() != null || !webServerTargetted)
{
await _next(context);
}
else
{
using (var mu = new MgmtUnit()) {
context.SetManagementUnit(mu);
await _next(context);
context.SetManagementUnit(null);
}
}
}
