| Message ID | 20181212203723.18810-1-rafael.tinoco@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v3,1/6] tst_timer.h: add tst_timespect_rem_us() function | expand |
Hi! > Expand tst_timer.h functionality by having a function to also remove > given microseconds from a given timespec. > > Signed-off-by: Rafael David Tinoco <rafael.tinoco@linaro.org> > --- > include/tst_timer.h | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/include/tst_timer.h b/include/tst_timer.h > index 577bc88ef..b1c9ceeba 100644 > --- a/include/tst_timer.h > +++ b/include/tst_timer.h > @@ -151,6 +151,23 @@ static inline struct timespec tst_timespec_add_us(struct timespec t, > return t; > } > > +/* > + * Removes us microseconds to t. > + */ > +static inline struct timespec tst_timespec_rem_us(struct timespec t, > + long long us) ^ This is very minor but better name would be sub as in substract > +{ > + t.tv_sec -= us / 1000000; > + t.tv_nsec -= (us % 1000000) * 1000; > + > + if (t.tv_nsec < 0) { > + t.tv_sec--; > + t.tv_nsec += 1000000000; > + } > + > + return t; > +} > + > /* > * Returns difference between two timespec structures. > */
diff --git a/include/tst_timer.h b/include/tst_timer.h index 577bc88ef..b1c9ceeba 100644 --- a/include/tst_timer.h +++ b/include/tst_timer.h @@ -151,6 +151,23 @@ static inline struct timespec tst_timespec_add_us(struct timespec t, return t; } +/* + * Removes us microseconds to t. + */ +static inline struct timespec tst_timespec_rem_us(struct timespec t, + long long us) +{ + t.tv_sec -= us / 1000000; + t.tv_nsec -= (us % 1000000) * 1000; + + if (t.tv_nsec < 0) { + t.tv_sec--; + t.tv_nsec += 1000000000; + } + + return t; +} + /* * Returns difference between two timespec structures. */
Expand tst_timer.h functionality by having a function to also remove given microseconds from a given timespec. Signed-off-by: Rafael David Tinoco <rafael.tinoco@linaro.org> --- include/tst_timer.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)