/** Called when hibernate_end_time has arrived. */
static void
hibernate_end_time_elapsed(time_t now)
{
char buf[ISO_TIME_LEN+1];
/* The interval has ended, or it is wakeup time. Find out which. */
accounting_run_housekeeping(now);
if (interval_wakeup_time <= now) {
/* The interval hasn't changed, but interval_wakeup_time has passed.
* It's time to wake up and start being a server. */
hibernate_end(HIBERNATE_STATE_LIVE);
return;
} else {
/* The interval has changed, and it isn't time to wake up yet. */
hibernate_end_time = interval_wakeup_time;
format_iso_time(buf,interval_wakeup_time);
if (hibernate_state != HIBERNATE_STATE_DORMANT) {
/* We weren't sleeping before; we should sleep now. */
log_notice(LD_ACCT,
"Accounting period ended. Commencing hibernation until "
"%s GMT", buf);
hibernate_go_dormant(now);
} else {
log_notice(LD_ACCT,
"Accounting period ended. This period, we will hibernate"
" until %s GMT",buf);
}
}
}
/** Write the persistent state to disk. Return 0 for success, <0 on failure. */
int
or_state_save(time_t now)
{
char *state, *contents;
char tbuf[ISO_TIME_LEN+1];
char *fname;
tor_assert(global_state);
if (global_state->next_write > now)
return 0;
/* Call everything else that might dirty the state even more, in order
* to avoid redundant writes. */
entry_guards_update_state(global_state);
rep_hist_update_state(global_state);
circuit_build_times_update_state(&circ_times, global_state);
if (accounting_is_enabled(get_options()))
accounting_run_housekeeping(now);
global_state->LastWritten = now;
tor_free(global_state->TorVersion);
tor_asprintf(&global_state->TorVersion, "Tor %s", get_version());
state = config_dump(&state_format, NULL, global_state, 1, 0);
format_local_iso_time(tbuf, now);
tor_asprintf(&contents,
"# Tor state file last generated on %s local time\n"
"# Other times below are in GMT\n"
"# You *do not* need to edit this file.\n\n%s",
tbuf, state);
tor_free(state);
fname = get_datadir_fname("state");
if (write_str_to_file(fname, contents, 0)<0) {
log_warn(LD_FS, "Unable to write state to file \"%s\"; "
"will try again later", fname);
last_state_file_write_failed = 1;
tor_free(fname);
tor_free(contents);
/* Try again after STATE_WRITE_RETRY_INTERVAL (or sooner, if the state
* changes sooner). */
global_state->next_write = now + STATE_WRITE_RETRY_INTERVAL;
return -1;
}
last_state_file_write_failed = 0;
log_info(LD_GENERAL, "Saved state to \"%s\"", fname);
tor_free(fname);
tor_free(contents);
if (server_mode(get_options()))
global_state->next_write = now + STATE_RELAY_CHECKPOINT_INTERVAL;
else
global_state->next_write = TIME_MAX;
return 0;
}