Function SHMQueueInit

src/backend/storage/ipc/shmqueue.c:35–40

* ShmemQueueInit -- make the head of a new queue point * to itself */

 *		to itself
 */
void
SHMQueueInit(SHM_QUEUE *queue)
{
	Assert(ShmemAddrIsValid(queue));
	queue->prev = queue->next = queue;
}

/*
 * SHMQueueIsDetached -- true if element is not currently