diff options
| author | Paul Jakma <paul.jakma@sun.com> | 2006-08-27 06:44:02 +0000 |
|---|---|---|
| committer | Paul Jakma <paul.jakma@sun.com> | 2006-08-27 06:44:02 +0000 |
| commit | db9c0df934e62835bc09604a7ae7932693b4254a (patch) | |
| tree | 7e382d6012701e345492756f7716d4f62030e9f8 /lib/ChangeLog | |
| parent | f0894cf8c323a25053e1f5e82be3ea5d88c2aacb (diff) | |
[lib] Bug #134: threads should be more robust against backward time jumps
2006-08-25 Paul Jakma <paul.jakma@sun.com>
* thread.c: (general) Add support for monotonic clock, it may still
jump forward by huge amounts, but should be immune to going
backwards. Fixes bug #134.
(quagga_gettimeofday_relative_adjust) helper, does what name
says - adjusts gettimeofday based relative timer.
(quagga_gettimeofday) helper to keep recent_time up to date.
(quagga_get_relative) helper, update and getch the relative
timer using gettimeofday(). POSIX CLOCK_MONOTONIC is also
supported, but the code is not enabled yet nor tested.
(quagga_real_stabilised) helper, retrieve absolute time but
stabilised so as to never decrease.
(quagga_gettime) Exported interface, analogous to POSIX
clock_gettime() in interface, supporting several clocks.
(quagga_time) Exported interface, analogous to traditional
time(), will never decrease.
(recent_relative_time) Convenience function to retrieve
relative_time timeval, similar to existing recent_time absolute
timeval, for when an approximately recent value will do.
(remainder) Update to use above helpers.
(thread_getrusage) Previously was a macro, but needs to be
a function to twiddle with thread.c private stuff.
* thread.c: Point the GETRUSAGE macro at previous function.
Export quagga_gettime, quagga_time and recent_relative_time for
general use.
Diffstat (limited to 'lib/ChangeLog')
| -rw-r--r-- | lib/ChangeLog | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/ChangeLog b/lib/ChangeLog index 7a744393..01f45ba5 100644 --- a/lib/ChangeLog +++ b/lib/ChangeLog @@ -1,3 +1,30 @@ +2006-08-25 Paul Jakma <paul.jakma@sun.com> + + * thread.c: (general) Add support for monotonic clock, it may still + jump forward by huge amounts, but should be immune to going + backwards. Fixes bug #134. + (quagga_gettimeofday_relative_adjust) helper, does what name + says - adjusts gettimeofday based relative timer. + (quagga_gettimeofday) helper to keep recent_time up to date. + (quagga_get_relative) helper, update and getch the relative + timer using gettimeofday(). POSIX CLOCK_MONOTONIC is also + supported, but the code is not enabled yet nor tested. + (quagga_real_stabilised) helper, retrieve absolute time but + stabilised so as to never decrease. + (quagga_gettime) Exported interface, analogous to POSIX + clock_gettime() in interface, supporting several clocks. + (quagga_time) Exported interface, analogous to traditional + time(), will never decrease. + (recent_relative_time) Convenience function to retrieve + relative_time timeval, similar to existing recent_time absolute + timeval, for when an approximately recent value will do. + (remainder) Update to use above helpers. + (thread_getrusage) Previously was a macro, but needs to be + a function to twiddle with thread.c private stuff. + * thread.c: Point the GETRUSAGE macro at previous function. + Export quagga_gettime, quagga_time and recent_relative_time for + general use. + 2006-07-25 Paul Jakma <paul.jakma@sun.com> * thread.h: (struct thread) Add a cache pointer to the struct |