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timeval: add UNLIKELY annotation

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This commit is contained in:
Lennart Poettering 2009-09-18 04:11:02 +02:00
parent 05f6236a83
commit a1da83b206
1 changed files with 3 additions and 3 deletions
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6
src/pulse/timeval.c
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@ -83,7 +83,7 @@ pa_usec_t pa_timeval_diff(const struct timeval *a, const struct timeval *b) {
pa_assert(b); pa_assert(b);
/* Check which whan is the earlier time and swap the two arguments if required. */ /* Check which whan is the earlier time and swap the two arguments if required. */
if (pa_timeval_cmp(a, b) < 0) { if (PA_UNLIKELY(pa_timeval_cmp(a, b) < 0)) {
const struct timeval *c; const struct timeval *c;
c = a; c = a;
a = b; a = b;
@ -95,9 +95,9 @@ pa_usec_t pa_timeval_diff(const struct timeval *a, const struct timeval *b) {
/* Calculate the microsecond difference */ /* Calculate the microsecond difference */
if (a->tv_usec > b->tv_usec) if (a->tv_usec > b->tv_usec)
r += ((pa_usec_t) a->tv_usec - (pa_usec_t) b->tv_usec); r += (pa_usec_t) a->tv_usec - (pa_usec_t) b->tv_usec;
else if (a->tv_usec < b->tv_usec) else if (a->tv_usec < b->tv_usec)
r -= ((pa_usec_t) b->tv_usec - (pa_usec_t) a->tv_usec); r -= (pa_usec_t) b->tv_usec - (pa_usec_t) a->tv_usec;
return r; return r;
} }