Does devpoll support dynamic add & remove of fd

Question

I am trying o use devpoll interface to improve the program
efficiency. I used devpoll interface to add fds as they
are created and to remove dynamically, since the program I used
creates sockets dynamically. When I ran the program, the
devpoll interface failed to report that sockets have data.
Any idea?
some errors are:
etNextBtsMsg(): Unexpected event rcvd. scktnum =3 revents = 0x 8
getNextBtsMsg(): Unexpected event rcvd. scktnum =4 revents = 0x 8
Thanks
K.Gnanaratne
#### here is teh code that add soocket number to dev poll list
struct pollfd pollBuf;
if ( scktNum >= k_maxScktNum ) {
cout << "addToPollList(): scktNum exceeds the max limit. scktNum =" << scktNum;
cout << " Qname "<< s_QnameSet[qType & 0x01] << endl;
return -1;
// add to poll list
pollBuf.fd = scktNum;
pollBuf.events = POLLIN|POLLRDNORM;
pollBuf.revents = 0;
if ( ::write(m_pfd[qType], &pollBuf, sizeof(pollBuf) ) != sizeof(pollBuf) ) {
cout << "addToPollList(): write to dev/poll failed. scktNum =" << scktNum;
cout << " error = " << strerror( errno );
cout << " Qname "<< s_QnameSet[qType & 0x01] << endl;
return -1;

Answer 1

You say it's not reporting events, but your errors show events being reported. It sounds like your code doesn't know how to handle things like POLLERR and POLLHUP.