private ShipHubContext _ephemeralContext; // this is for WithContext only. If you're not WithContext, don't use it.
private async Task WithContext(Func <ShipHubContext, Task> dbWork)
{
if (_borrowedContext != null)
{
// legacy path
await dbWork(_borrowedContext);
}
else if (_ephemeralContext != null)
{
// re-entrant path
await dbWork(_ephemeralContext);
}
else
{
try {
_ephemeralContext = _contextFactory.CreateInstance();
await dbWork(_ephemeralContext);
} finally {
if (_ephemeralContext != null)
{
_ephemeralContext.Dispose();
_ephemeralContext = null;
}
}
}
}