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Merge remote-tracking branch 'public/bug12485'

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Nick Mathewson 2015-01-18 13:49:30 -05:00
commit 79e12da861
2 changed files with 16 additions and 1 deletions
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4
changes/bug12485 Normal file
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@ -0,0 +1,4 @@
o Minor features (Guard nodes):
- Reduce the time delay before saving guard status to disk from 10
minute to 30 seconds (or from one hour to 10 minutes if
AvoidDiskWrites is set). Closes ticket 12485.

13
src/or/entrynodes.c
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@ -1523,6 +1523,13 @@ entry_guards_parse_state(or_state_t *state, int set, char **msg)
return *msg ? -1 : 0;
}
/** How long will we let a change in our guard nodes stay un-saved
* when we are trying to avoid disk writes? */
#define SLOW_GUARD_STATE_FLUSH_TIME 600
/** How long will we let a change in our guard nodes stay un-saved
* when we are not trying to avoid disk writes? */
#define FAST_GUARD_STATE_FLUSH_TIME 30
/** Our list of entry guards has changed, or some element of one
* of our entry guards has changed. Write the changes to disk within
* the next few minutes.
@ -1533,8 +1540,12 @@ entry_guards_changed(void)
time_t when;
entry_guards_dirty = 1;
if (get_options()->AvoidDiskWrites)
when = time(NULL) + SLOW_GUARD_STATE_FLUSH_TIME;
else
when = time(NULL) + FAST_GUARD_STATE_FLUSH_TIME;
/* or_state_save() will call entry_guards_update_state(). */
when = get_options()->AvoidDiskWrites ? time(NULL) + 3600 : time(NULL)+600;
or_state_mark_dirty(get_or_state(), when);
}