libperf: lack of interface

[nakamura.shun@xxxxxxxxxxx]

Hello.

I'm trying to change rdpmc test in perf_event_tests[1] to use libperf, but libperf doesn't have enough interfaces.
Does anyone plan to implement any of these libperf features?

- Interfaces that can run ioctl (PERF_EVENT_IOC_RESET) from userland
- Interfaces that can run fcntl (SIGIO) from userland

[1] https://github.com/deater/perf_event_tests/tree/master/tests/rdpmc


Thanks.
Shunsuke