IPC_PROJ_USAGE
IPC_PROJ_USAGE(perm, service) += 1;
ASSERT(IPC_PROJ_USAGE(perm, service) > 0);
IPC_PROJ_USAGE(perm, service) -= 1;
ASSERT(service->ipcs_count || ((IPC_PROJ_USAGE(perm, service) == 0) &&