Waiter gets timestamp

uint64_t timestamp;
err = NvSciSyncFenceWait(&fence, waitContext, NV_WAIT_INFINITE);
if (err != NvSciError_Success) {
    return err;
}
err = NvSciSyncFenceGetTimestamp(&fence, &timestamp);
if (err != NvSciError_Success) {
    return err;
}