On 2/23/2019 2:15 PM, Corinna Vinschen wrote: > Below's the NSSTC I used to test my timerfd implementation (based on > another STC to show a problem in POSIX timers). From what I can tell it > works as desired. If you find a problem, please point it out or send a > patch.
Thanks, that saved me a lot of time. I was in the process of creating a test case when your mail arrived. Your test works fine. For example: $ gcc timerfd_test.c -o timerfd_test $ ./timerfd_test.exe 3 1 10 0.000: timer started 52379 2.988: 52379 read: 1; total=1 3.988: 52379 read: 1; total=2 4.989: 52379 read: 1; total=3 5.987: 52379 read: 1; total=4 7.001: 52379 read: 1; total=5 7.987: 52379 read: 1; total=6 9.001: 52379 read: 1; total=7 9.987: 52379 read: 1; total=8 10.987: 52379 read: 1; total=9 11.997: 52379 read: 1; total=10 But if I change CLOCK_MONOTONIC by CLOCK_REALTIME in the call to timerfd_create, then I get the following: $ ./timerfd_test.exe 3 1 10 0.000: timer started 52385 0.006: 52385 read: 1550343072; total=1550343072 In particular, 'select' returns immediately. In the case of emacs, BTW, timerfd is called like this: fd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); Ken
