Tweak bug2716 patch a little

Name the magic value "10" rather than re-deriving it.

Comment more.

Use the pattern that works for periodic timers, not the pattern that
doesn't work. ;)
This commit is contained in:
Nick Mathewson 2011-03-12 00:19:52 -05:00
parent 977e396e86
commit 176fde505f
3 changed files with 17 additions and 5 deletions

View File

@ -969,11 +969,17 @@ dirserv_set_router_is_running(routerinfo_t *router, time_t now)
} }
if (!answer && running_long_enough_to_decide_unreachable()) { if (!answer && running_long_enough_to_decide_unreachable()) {
/* not considered reachable. tell rephist. */ /* Not considered reachable. tell rephist about that.
Because we launch a reachability test for each router every
REACHABILITY_TEST_CYCLE_PERIOD seconds, then the router has probably
been down since at least that time after we last successfully reached
it.
*/
time_t when = now; time_t when = now;
if (router->last_reachable && if (router->last_reachable &&
router->last_reachable + REACHABILITY_TEST_PERIOD < now) router->last_reachable + REACHABILITY_TEST_CYCLE_PERIOD < now)
when = router->last_reachable + REACHABILITY_TEST_PERIOD; when = router->last_reachable + REACHABILITY_TEST_CYCLE_PERIOD;
rep_hist_note_router_unreachable(router->cache_info.identity_digest, when); rep_hist_note_router_unreachable(router->cache_info.identity_digest, when);
} }

View File

@ -17,8 +17,12 @@
* test? */ * test? */
#define REACHABILITY_MODULO_PER_TEST 128 #define REACHABILITY_MODULO_PER_TEST 128
/** How often (in seconds) do we launch reachability tests? */
#define REACHABILITY_TEST_INTERVAL 10
/** How many seconds apart are the reachability tests for a given relay? */ /** How many seconds apart are the reachability tests for a given relay? */
#define REACHABILITY_TEST_PERIOD (10*REACHABILITY_MODULO_PER_TEST) #define REACHABILITY_TEST_CYCLE_PERIOD \
(REACHABILITY_TEST_INTERVAL*REACHABILITY_MODULO_PER_TEST)
/** Maximum length of an exit policy summary. */ /** Maximum length of an exit policy summary. */
#define MAX_EXITPOLICY_SUMMARY_LEN 1000 #define MAX_EXITPOLICY_SUMMARY_LEN 1000

View File

@ -872,6 +872,7 @@ run_scheduled_events(time_t now)
static time_t time_to_check_for_expired_networkstatus = 0; static time_t time_to_check_for_expired_networkstatus = 0;
static time_t time_to_write_stats_files = 0; static time_t time_to_write_stats_files = 0;
static time_t time_to_write_bridge_stats = 0; static time_t time_to_write_bridge_stats = 0;
static time_t time_to_launch_reachability_tests = 0;
static int should_init_bridge_stats = 1; static int should_init_bridge_stats = 1;
static time_t time_to_retry_dns_init = 0; static time_t time_to_retry_dns_init = 0;
or_options_t *options = get_options(); or_options_t *options = get_options();
@ -962,9 +963,10 @@ run_scheduled_events(time_t now)
if (accounting_is_enabled(options)) if (accounting_is_enabled(options))
accounting_run_housekeeping(now); accounting_run_housekeeping(now);
if (now % REACHABILITY_TEST_PERIOD/REACHABILITY_MODULO_PER_TEST == 0 && if (time_to_launch_reachability_tests < now &&
(authdir_mode_tests_reachability(options)) && (authdir_mode_tests_reachability(options)) &&
!we_are_hibernating()) { !we_are_hibernating()) {
time_to_launch_reachability_tests = now + REACHABILITY_TEST_INTERVAL;
/* try to determine reachability of the other Tor relays */ /* try to determine reachability of the other Tor relays */
dirserv_test_reachability(now); dirserv_test_reachability(now);
} }