public UserDetails GetOrCreateUser(string username, string connectionid)
{
try
{
GroupLock.EnterUpgradeableReadLock();
UserDetails userdetails = null;
if (!Users.TryGetValue(connectionid, out userdetails))
{
try
{
GroupLock.EnterWriteLock();
if (!Users.TryGetValue(connectionid, out userdetails))
{
userdetails = new UserDetails()
{
ConnectionId = connectionid, Code = "", UserName = username, Rating = Single.MaxValue
};
TryElevateUserToOwner(userdetails);
Users.Add(connectionid, userdetails);
}
}
finally
{
GroupLock.ExitWriteLock();
}
}
return(userdetails);
}
finally
{
GroupLock.ExitUpgradeableReadLock();
}
}
public List <UserDetails> GetUsers()
{
try
{
GroupLock.EnterReadLock();
return(Users.Values.ToList());
}
finally
{
GroupLock.ExitReadLock();
}
}
public bool RemoveUser(UserDetails user)
{
try
{
GroupLock.EnterWriteLock();
if (IsOwner(user))
{
Owner = null;
}
return(Users.Remove(user.ConnectionId));
}
finally
{
GroupLock.ExitWriteLock();
}
}
public bool TryGetUser(string connectionid, out UserDetails userdetails)
{
try
{
GroupLock.EnterReadLock();
if (Users.TryGetValue(connectionid, out userdetails))
{
return(true);
}
return(false);
}
finally
{
GroupLock.ExitReadLock();
}
}
public void ClearCodeAndRatings()
{
try
{
GroupLock.EnterReadLock();
foreach (var userdetail in Users.Values)
{
userdetail.Code = "";
userdetail.Rating = Single.MaxValue;
userdetail.Attempts = 0;
}
}
finally
{
GroupLock.ExitReadLock();
}
}
