def fill_remote_cache(cache):
    remote_cache_time_start = get_remote_cache_time()
    remote_cache_requests_start = get_remote_cache_requests()
    items_for_remote_cache = {} # type: Dict[str, Any]
    (objects, items_filler, timeout, batch_size) = cache_fillers[cache]
    count = 0
    for obj in objects():
        items_filler(items_for_remote_cache, obj)
        count += 1
        if (count % batch_size == 0):
            cache_set_many(items_for_remote_cache, timeout=3600*24)
            items_for_remote_cache = {}
    cache_set_many(items_for_remote_cache, timeout=3600*24*7)
    logging.info("Succesfully populated %s cache!  Consumed %s remote cache queries (%s time)" % \
                     (cache, get_remote_cache_requests() - remote_cache_requests_start,
                      round(get_remote_cache_time() - remote_cache_time_start, 2)))

def record_request_restart_data(log_data):
    if settings.PROFILE_ALL_REQUESTS:
        log_data["prof"].enable()
    log_data['time_restarted'] = time.time()
    log_data['remote_cache_time_restarted'] = get_remote_cache_time()
    log_data['remote_cache_requests_restarted'] = get_remote_cache_requests()
    log_data['bugdown_time_restarted'] = get_bugdown_time()
    log_data['bugdown_requests_restarted'] = get_bugdown_requests()

def record_request_stop_data(log_data):
    log_data['time_stopped'] = time.time()
    log_data['remote_cache_time_stopped'] = get_remote_cache_time()
    log_data['remote_cache_requests_stopped'] = get_remote_cache_requests()
    log_data['bugdown_time_stopped'] = get_bugdown_time()
    log_data['bugdown_requests_stopped'] = get_bugdown_requests()
    if settings.PROFILE_ALL_REQUESTS:
        log_data["prof"].disable()

def record_request_start_data(log_data: MutableMapping[str, Any]) -> None:
    if settings.PROFILE_ALL_REQUESTS:
        log_data["prof"] = cProfile.Profile()
        log_data["prof"].enable()

    reset_queries()
    log_data['time_started'] = time.time()
    log_data['remote_cache_time_start'] = get_remote_cache_time()
    log_data['remote_cache_requests_start'] = get_remote_cache_requests()
    log_data['bugdown_time_start'] = get_bugdown_time()
    log_data['bugdown_requests_start'] = get_bugdown_requests()

def write_log_line(log_data, path, method, remote_ip, email, client_name,
                   status_code=200, error_content=None, error_content_iter=None):
    # type: (MutableMapping[str, Any], Text, str, str, Text, Text, int, Optional[AnyStr], Optional[Iterable[AnyStr]]) -> None
    assert error_content is None or error_content_iter is None
    if error_content is not None:
        error_content_iter = (error_content,)

    # For statsd timer name
    if path == '/':
        statsd_path = u'webreq'
    else:
        statsd_path = u"webreq.%s" % (path[1:].replace('/', '.'),)
        # Remove non-ascii chars from path (there should be none, if there are it's
        # because someone manually entered a nonexistant path), as UTF-8 chars make
        # statsd sad when it sends the key name over the socket
        statsd_path = statsd_path.encode('ascii', errors='ignore').decode("ascii")
    blacklisted_requests = ['do_confirm', 'send_confirm',
                            'eventslast_event_id', 'webreq.content', 'avatar', 'user_uploads',
                            'password.reset', 'static', 'json.bots', 'json.users', 'json.streams',
                            'accounts.unsubscribe', 'apple-touch-icon', 'emoji', 'json.bots',
                            'upload_file', 'realm_activity', 'user_activity']
    suppress_statsd = any((blacklisted in statsd_path for blacklisted in blacklisted_requests))

    time_delta = -1
    # A time duration of -1 means the StartLogRequests middleware
    # didn't run for some reason
    optional_orig_delta = ""
    if 'time_started' in log_data:
        time_delta = time.time() - log_data['time_started']
    if 'time_stopped' in log_data:
        orig_time_delta = time_delta
        time_delta = ((log_data['time_stopped'] - log_data['time_started']) +
                      (time.time() - log_data['time_restarted']))
        optional_orig_delta = " (lp: %s)" % (format_timedelta(orig_time_delta),)
    remote_cache_output = ""
    if 'remote_cache_time_start' in log_data:
        remote_cache_time_delta = get_remote_cache_time() - log_data['remote_cache_time_start']
        remote_cache_count_delta = get_remote_cache_requests() - log_data['remote_cache_requests_start']
        if 'remote_cache_requests_stopped' in log_data:
            # (now - restarted) + (stopped - start) = (now - start) + (stopped - restarted)
            remote_cache_time_delta += (log_data['remote_cache_time_stopped'] -
                                        log_data['remote_cache_time_restarted'])
            remote_cache_count_delta += (log_data['remote_cache_requests_stopped'] -
                                         log_data['remote_cache_requests_restarted'])

        if (remote_cache_time_delta > 0.005):
            remote_cache_output = " (mem: %s/%s)" % (format_timedelta(remote_cache_time_delta),
                                                     remote_cache_count_delta)

        if not suppress_statsd:
            statsd.timing("%s.remote_cache.time" % (statsd_path,), timedelta_ms(remote_cache_time_delta))
            statsd.incr("%s.remote_cache.querycount" % (statsd_path,), remote_cache_count_delta)

    startup_output = ""
    if 'startup_time_delta' in log_data and log_data["startup_time_delta"] > 0.005:
        startup_output = " (+start: %s)" % (format_timedelta(log_data["startup_time_delta"]))

    bugdown_output = ""
    if 'bugdown_time_start' in log_data:
        bugdown_time_delta = get_bugdown_time() - log_data['bugdown_time_start']
        bugdown_count_delta = get_bugdown_requests() - log_data['bugdown_requests_start']
        if 'bugdown_requests_stopped' in log_data:
            # (now - restarted) + (stopped - start) = (now - start) + (stopped - restarted)
            bugdown_time_delta += (log_data['bugdown_time_stopped'] -
                                   log_data['bugdown_time_restarted'])
            bugdown_count_delta += (log_data['bugdown_requests_stopped'] -
                                    log_data['bugdown_requests_restarted'])

        if (bugdown_time_delta > 0.005):
            bugdown_output = " (md: %s/%s)" % (format_timedelta(bugdown_time_delta),
                                               bugdown_count_delta)

            if not suppress_statsd:
                statsd.timing("%s.markdown.time" % (statsd_path,), timedelta_ms(bugdown_time_delta))
                statsd.incr("%s.markdown.count" % (statsd_path,), bugdown_count_delta)

    # Get the amount of time spent doing database queries
    db_time_output = ""
    queries = connection.connection.queries if connection.connection is not None else []
    if len(queries) > 0:
        query_time = sum(float(query.get('time', 0)) for query in queries)
        db_time_output = " (db: %s/%sq)" % (format_timedelta(query_time),
                                            len(queries))

        if not suppress_statsd:
            # Log ms, db ms, and num queries to statsd
            statsd.timing("%s.dbtime" % (statsd_path,), timedelta_ms(query_time))
            statsd.incr("%s.dbq" % (statsd_path,), len(queries))
            statsd.timing("%s.total" % (statsd_path,), timedelta_ms(time_delta))

    if 'extra' in log_data:
        extra_request_data = " %s" % (log_data['extra'],)
    else:
        extra_request_data = ""
    logger_client = "(%s via %s)" % (email, client_name)
    logger_timing = ('%5s%s%s%s%s%s %s' %
                     (format_timedelta(time_delta), optional_orig_delta,
                      remote_cache_output, bugdown_output,
                      db_time_output, startup_output, path))
    logger_line = ('%-15s %-7s %3d %s%s %s' %
#.........这里部分代码省略.........