Function ShmemBackendArrayAdd

src/backend/postmaster/postmaster.c:7253–7261

}

static void
ShmemBackendArrayAdd(Backend *bn)
{
	/* The array slot corresponding to my PMChildSlot should be free */
	int			i = bn->child_slot - 1;

	Assert(ShmemBackendArray[i].pid == 0);
	ShmemBackendArray[i] = *bn;
}

static void
ShmemBackendArrayRemove(Backend *bn)