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Code Issues Releases Wiki Activity

[4075] Added comment in the unit test about the usleep time selection.

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Marcin Siodelski
2015-10-13 21:59:12 +02:00
parent 27266ca374
commit a045551c70
1 changed files with 6 additions and 0 deletions
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6
src/lib/dhcpsrv/tests/alloc_engine_expiration_unittest.cc
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@@ -511,6 +511,12 @@ public:
/// the approximate time that the reclamation of all leases would take and /// the approximate time that the reclamation of all leases would take and
/// test that the timeouts for the leases' reclamation work as expected. /// test that the timeouts for the leases' reclamation work as expected.
/// ///
/// The value of 40ms is relatively high, but it has been selected to
/// mitigate the problems with usleep on some virtual machines. On those
/// machines the wakeup from usleep may take significant amount of time,
/// i.e. usually around 10ms. Thus, the sleep time should be considerably
/// higher than this delay.
///
/// @param callout_handle Callout handle. /// @param callout_handle Callout handle.
/// @return Zero. /// @return Zero.
static int leaseExpireWithDelayCallout(CalloutHandle& callout_handle) { static int leaseExpireWithDelayCallout(CalloutHandle& callout_handle) {