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Reset all main.c state at exit 

This change is part of 24587.
This commit is contained in:
Nick Mathewson 2017-12-11 13:43:48 -05:00
parent 6033538ac3
commit 3809036c63
1 changed files with 46 additions and 15 deletions
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61
src/or/main.c
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@ -1392,6 +1392,7 @@ teardown_periodic_events(void)
for (i = 0; periodic_events[i].name; ++i) {
periodic_event_destroy(&periodic_events[i]);
}
periodic_events_initialized = 0;
}
/**
@ -1859,14 +1860,14 @@ reset_padding_counts_callback(time_t now, const or_options_t *options)
return REPHIST_CELL_PADDING_COUNTS_INTERVAL;
}
static int should_init_bridge_stats = 1;
/**
* Periodic callback: Write bridge statistics to disk if appropriate.
*/
static int
record_bridge_stats_callback(time_t now, const or_options_t *options)
{
static int should_init_bridge_stats = 1;
/* 1h. Check whether we should write bridge statistics to disk.
*/
if (should_record_bridge_info(options)) {
@ -2059,6 +2060,8 @@ expire_old_ciruits_serverside_callback(time_t now, const or_options_t *options)
return 11;
}
static int dns_honesty_first_time = 1;
/**
* Periodic event: if we're an exit, see if our DNS server is telling us
* obvious lies.
@ -2074,10 +2077,9 @@ check_dns_honesty_callback(time_t now, const or_options_t *options)
router_my_exit_policy_is_reject_star())
return PERIODIC_EVENT_NO_UPDATE;
static int first_time = 1;
if (first_time) {
if (dns_honesty_first_time) {
/* Don't launch right when we start */
first_time = 0;
dns_honesty_first_time = 0;
return crypto_rand_int_range(60, 180);
}
@ -2128,6 +2130,8 @@ check_fw_helper_app_callback(time_t now, const or_options_t *options)
return PORT_FORWARDING_CHECK_INTERVAL;
}
static int heartbeat_callback_first_time = 1;
/**
* Periodic callback: write the heartbeat message in the logs.
*
@ -2137,16 +2141,14 @@ check_fw_helper_app_callback(time_t now, const or_options_t *options)
static int
heartbeat_callback(time_t now, const or_options_t *options)
{
static int first = 1;
/* Check if heartbeat is disabled */
if (!options->HeartbeatPeriod) {
return PERIODIC_EVENT_NO_UPDATE;
}
/* Skip the first one. */
if (first) {
first = 0;
if (heartbeat_callback_first_time) {
heartbeat_callback_first_time = 0;
return options->HeartbeatPeriod;
}
@ -2198,6 +2200,8 @@ hs_service_callback(time_t now, const or_options_t *options)
static periodic_timer_t *second_timer = NULL;
/** Number of libevent errors in the last second: we die if we get too many. */
static int n_libevent_errors = 0;
/** Last time that second_elapsed_callback was called. */
static time_t current_second = 0;
/** Libevent callback: invoked once every second. */
static void
@ -2206,7 +2210,6 @@ second_elapsed_callback(periodic_timer_t *timer, void *arg)
/* XXXX This could be sensibly refactored into multiple callbacks, and we
* could use Libevent's timers for this rather than checking the current
* time against a bunch of timeouts every second. */
static time_t current_second = 0;
time_t now;
size_t bytes_written;
size_t bytes_read;
@ -2301,12 +2304,14 @@ systemd_watchdog_callback(periodic_timer_t *timer, void *arg)
/** Timer: used to invoke refill_callback(). */
static periodic_timer_t *refill_timer = NULL;
/** Millisecond when refall_callback was last invoked. */
static struct timeval refill_timer_current_millisecond;
/** Libevent callback: invoked periodically to refill token buckets
* and count r/w bytes. */
static void
refill_callback(periodic_timer_t *timer, void *arg)
{
static struct timeval current_millisecond;
struct timeval now;
size_t bytes_written;
@ -2322,12 +2327,13 @@ refill_callback(periodic_timer_t *timer, void *arg)
tor_gettimeofday(&now);
/* If this is our first time, no time has passed. */
if (current_millisecond.tv_sec) {
long mdiff = tv_mdiff(&current_millisecond, &now);
if (refill_timer_current_millisecond.tv_sec) {
long mdiff = tv_mdiff(&refill_timer_current_millisecond, &now);
if (mdiff > INT_MAX)
mdiff = INT_MAX;
milliseconds_elapsed = (int)mdiff;
seconds_rolled_over = (int)(now.tv_sec - current_millisecond.tv_sec);
seconds_rolled_over = (int)(now.tv_sec -
refill_timer_current_millisecond.tv_sec);
}
bytes_written = stats_prev_global_write_bucket - global_write_bucket;
@ -2344,7 +2350,8 @@ refill_callback(periodic_timer_t *timer, void *arg)
stats_prev_global_read_bucket = global_read_bucket;
stats_prev_global_write_bucket = global_write_bucket;
current_millisecond = now; /* remember what time it is, for next time */
/* remember what time it is, for next time */
refill_timer_current_millisecond = now;
}
#ifndef _WIN32
@ -3384,6 +3391,30 @@ tor_free_all(int postfork)
periodic_timer_free(second_timer);
teardown_periodic_events();
periodic_timer_free(refill_timer);
#ifdef HAVE_SYSTEMD_209
periodic_timer_free(systemd_watchdog_timer);
#endif
global_read_bucket = global_write_bucket = 0;
global_relayed_read_bucket = global_relayed_write_bucket = 0;
stats_prev_global_read_bucket = stats_prev_global_write_bucket = 0;
stats_prev_n_read = stats_prev_n_written = 0;
stats_n_bytes_read = stats_n_bytes_written = 0;
time_of_process_start = 0;
time_of_last_signewnym = 0;
signewnym_is_pending = 0;
newnym_epoch = 0;
called_loop_once = 0;
main_loop_should_exit = 0;
main_loop_exit_value = 0;
can_complete_circuits = 0;
quiet_level = 0;
should_init_bridge_stats = 1;
dns_honesty_first_time = 1;
heartbeat_callback_first_time = 1;
n_libevent_errors = 0;
current_second = 0;
memset(&refill_timer_current_millisecond, 0, sizeof(struct timeval));
if (!postfork) {
release_lockfile();