Initializing LWLock Array from Server Code

Hi,

I have created a shared hash table in partitioned mode inside the postgres server code. In order to guard the partitions, I'm trying to initialize an array of LWLocks. The code that I'm trying to use for that is

void RequestNamedLWLockTranche(const char *tranche_name, int num_lwlocks);

LWLockPadded *GetNamedLWLockTranche(const char *tranche_name);

I'm not sure where exactly should this code be called from the server code. So I had placed it in

void CreateSharedMemoryAndSemaphores(bool makePrivate, int port);

within ipic.c. However, I'm getting the following error message when starting the database:

FATAL:  requested tranche is not registered

So at this point, I'm a little confused as to where the methods should be called from inside the server code. Any pointers would be appreciated.

Thanks,

-SB