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[OPTIM] add compiler hints in tick_is_expired()

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adding those two unlikely() reduces the number of branches taken in
the common path and the size of the code.
This commit is contained in:
Willy Tarreau 2008-09-04 09:00:24 +02:00
parent 3537467679
commit 534c5a2224
1 changed files with 4 additions and 2 deletions
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6
include/common/ticks.h
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@ -82,9 +82,11 @@ static inline int tick_add_ifset(int now, int timeout)
/* return 1 if timer <timer> is expired at date <now>, otherwise zero */ /* return 1 if timer <timer> is expired at date <now>, otherwise zero */
static inline int tick_is_expired(int timer, int now) static inline int tick_is_expired(int timer, int now)
{ {
if (!tick_isset(timer)) if (unlikely(!tick_isset(timer)))
return 0; return 0;
return (timer - now) <= 0; if (unlikely((timer - now) <= 0))
return 1;
return 0;
} }
/* return the first one of the two timers, both of which may be infinite */ /* return the first one of the two timers, both of which may be infinite */