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Remove tor_gettimeofday_cached_monotonic as broken and unneeded

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This commit is contained in:
Nick Mathewson 2016-07-13 09:28:46 -04:00
parent c7558c906a
commit 7bc4ca7de9
2 changed files with 0 additions and 31 deletions
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30
src/common/compat_libevent.c
View File

@ -388,33 +388,3 @@ tor_gettimeofday_cache_set(const struct timeval *tv)
#endif
#endif
/**
* As tor_gettimeofday_cached, but can never move backwards in time.
*
* The returned value may diverge from wall-clock time, since wall-clock time
* can trivially be adjusted backwards, and this can't. Don't mix wall-clock
* time with these values in the same calculation.
*
* Depending on implementation, this function may or may not "smooth out" huge
* jumps forward in wall-clock time. It may or may not keep its results
* advancing forward (as opposed to stalling) if the wall-clock time goes
* backwards. The current implementation does neither of of these.
*
* This function is not thread-safe; do not call it outside the main thread.
*
* In future versions of Tor, this may return a time does not have its
* origin at the Unix epoch.
*/
void
tor_gettimeofday_cached_monotonic(struct timeval *tv)
{
struct timeval last_tv = { 0, 0 };
tor_gettimeofday_cached(tv);
if (timercmp(tv, &last_tv, OP_LT)) {
memcpy(tv, &last_tv, sizeof(struct timeval));
} else {
memcpy(&last_tv, tv, sizeof(struct timeval));
}
}

1
src/common/compat_libevent.h
View File

@ -70,7 +70,6 @@ void tor_gettimeofday_cache_clear(void);
#ifdef TOR_UNIT_TESTS
void tor_gettimeofday_cache_set(const struct timeval *tv);
#endif
void tor_gettimeofday_cached_monotonic(struct timeval *tv);
#ifdef COMPAT_LIBEVENT_PRIVATE