/// <summary>
/// SetAndReleaseItemExclusiveAsync saves the item to db and releases lock.
/// </summary>
/// <remarks>
/// In this implementation, the lock is stored as a separate item in db.
/// If the lock failed to release, db cleaning routine should remove it
/// according to the timestamp and TTL values as soon as possible.
/// </remarks>
public override async Task SetAndReleaseItemExclusiveAsync(
HttpContextBase context,
string id,
SessionStateStoreData item,
object lockId,
bool newItem,
CancellationToken cancellationToken)
{
AssertIdValid(id);
Trace.WriteLine($"SetAndReleaseItemExclusiveAsync. items.Dirty: {item.Items.Dirty}");
var state = item.ExtractDataForStorage();
try
{
await _store.WriteContents(context, id, state, false);
}
finally
{
if (!newItem)
{
await _store.TryReleaseLock(id, lockId);
}
}
}
