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added comment to the tvdiff

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This commit is contained in:
Daniel Stenberg 2001-10-01 22:50:20 +00:00
parent 3298630500
commit f0fa858885
1 changed files with 4 additions and 0 deletions
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4
lib/timeval.c
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@ -65,6 +65,10 @@ struct timeval Curl_tvnow (void)
return now; return now;
} }
/*
* Make sure that the first argument is the more recent time, as otherwise
* we'll get a weird negative time-diff back...
*/
double Curl_tvdiff (struct timeval t1, struct timeval t2) double Curl_tvdiff (struct timeval t1, struct timeval t2)
{ {
return (double)(t1.tv_sec - t2.tv_sec) + ((t1.tv_usec-t2.tv_usec)/1000000.0); return (double)(t1.tv_sec - t2.tv_sec) + ((t1.tv_usec-t2.tv_usec)/1000000.0);