int main(int argc, char** argv) {
    int retval;
    bool one_pass = false;
    int i;
    DB_APP app;

    check_stop_daemons();

    *app.name='\0';
    for (i=1; i<argc; i++) {
        if (is_arg(argv[i], "one_pass")) {
            one_pass = true;
        } else if (is_arg(argv[i], "dont_retry_errors")) {
            dont_retry_errors = true;
        } else if (is_arg(argv[i], "preserve_wu_files")) {
            preserve_wu_files = true;
        } else if (is_arg(argv[i], "preserve_result_files")) {
            preserve_result_files = true;
        } else if (is_arg(argv[i], "app")) {
            strcpy(app.name, argv[++i]);
        } else if (is_arg(argv[i], "appid")) {
            if (!argv[++i]) {
                log_messages.printf(MSG_CRITICAL, "%s requires an argument\n\n", argv[--i]);
                usage(argv[0]);
                exit(1);
            }
            appid = atoi(argv[i]);
        } else if (is_arg(argv[i], "d") || is_arg(argv[i], "debug_level")) {
            if (!argv[++i]) {
                log_messages.printf(MSG_CRITICAL, "%s requires an argument\n\n", argv[--i]);
                usage(argv[0]);
                exit(1);
            }
            int dl = atoi(argv[i]);
            log_messages.set_debug_level(dl);
            if (dl == 4) g_print_queries = true;
        } else if (is_arg(argv[i], "mod")) {
            if (!argv[i+1] || !argv[i+2]) {
                log_messages.printf(MSG_CRITICAL, "%s requires two arguments\n\n", argv[i]);
                usage(argv[0]);
                exit(1);
            }
            id_modulus   = atoi(argv[++i]);
            id_remainder = atoi(argv[++i]);
        } else if (is_arg(argv[i], "dont_delete_antiques")) {
            dont_delete_antiques = true;
        } else if (is_arg(argv[i], "delete_antiques_interval")) {
            antique_interval = atoi(argv[++i]);
        } else if (is_arg(argv[i], "delete_antiques_limit")) {
            antique_limit = atoi(argv[++i]);
        } else if (is_arg(argv[i], "dont_delete_batches")) {
            dont_delete_batches = true;
        } else if (is_arg(argv[i], "delete_antiques_now")) {
            antique_delay = 0;
        } else if (is_arg(argv[i], "input_files_only")) {
            do_output_files = false;
            dont_delete_antiques = true;
        } else if (is_arg(argv[i], "output_files_only")) {
            do_input_files = false;
        } else if (is_arg(argv[i], "sleep_interval")) {
            if (!argv[++i]) {
                log_messages.printf(MSG_CRITICAL, "%s requires an argument\n\n", argv[--i]);
                usage(argv[0]);
                exit(1);
            }
            sleep_interval = atoi(argv[i]);
        } else if (is_arg(argv[i], "h") || is_arg(argv[i], "help")) {
            usage(argv[0]);
            exit(0);
        } else if (is_arg(argv[i], "v") || is_arg(argv[i], "version")) {
            printf("%s\n", SVN_VERSION);
            exit(0);
        } else {
            log_messages.printf(MSG_CRITICAL, "unknown command line argument: %s\n\n", argv[i]);
            usage(argv[0]);
            exit(1);
        }
    }

    if (id_modulus) {
        log_messages.printf(MSG_DEBUG,
                            "Using mod'ed WU/result enumeration.  mod = %d  rem = %d\n",
                            id_modulus, id_remainder
                           );
    }

    retval = config.parse_file();
    if (retval) {
        log_messages.printf(MSG_CRITICAL,
                            "Can't parse config.xml: %s\n", boincerror(retval)
                           );
        exit(1);
    }

    log_messages.printf(MSG_NORMAL, "Starting\n");

    retval = boinc_db.open(config.db_name, config.db_host, config.db_user, config.db_passwd);
    if (retval) {
        log_messages.printf(MSG_CRITICAL, "can't open DB\n");
        exit(1);
    }
    retval = boinc_db.set_isolation_level(READ_UNCOMMITTED);
    if (retval) {
        log_messages.printf(MSG_CRITICAL,
                            "boinc_db.set_isolation_level: %s; %s\n",
                            boincerror(retval), boinc_db.error_string()
                           );
    }

    if (*app.name && !appid) {
        char buf[256];
        sprintf(buf, "where name='%s'", app.name);
        retval = app.lookup(buf);
        if (retval) {
            log_messages.printf(MSG_CRITICAL, "Can't find app\n");
            exit(1);
        }
        appid=app.id;
        log_messages.printf(MSG_DEBUG, "Deleting files of appid %d\n",appid);
    }

    install_stop_signal_handler();

    bool retry_errors_now = !dont_retry_errors;
    double next_error_time=0;
    double next_antique_time = dtime() + antique_delay;
    while (1) {
        bool got_any = do_pass(false);
        if (retry_errors_now) {
            bool got_any_errors = do_pass(true);
            if (got_any_errors) {
                got_any = true;
            } else {
                retry_errors_now = false;
                next_error_time = dtime() + ERROR_INTERVAL;
                log_messages.printf(MSG_DEBUG,
                                    "ending retry of previous errors\n"
                                   );
            }
        }
        if (!got_any) {
            if (one_pass) break;
            sleep(sleep_interval);
        }
        if (!dont_delete_antiques && (dtime() > next_antique_time)) {
            log_messages.printf(MSG_DEBUG,
                                "Doing antique deletion pass\n"
                               );
            do_antique_pass();
            next_antique_time = dtime() + antique_interval;
        }
        if (!dont_retry_errors && !retry_errors_now && (dtime() > next_error_time)) {
            retry_errors_now = true;
            log_messages.printf(MSG_DEBUG,
                                "starting retry of previous errors\n"
                               );
        }
    }
}
int main(int argc, char** argv) {
    int retval;
    bool one_pass = false;
    int i;

    check_stop_daemons();
    for (i=1; i<argc; i++) {
        if (!strcmp(argv[i], "-one_pass")) {
            one_pass = true;
        } else if (!strcmp(argv[i], "-dont_retry_errors")) {
            dont_retry_errors = true;
        } else if (!strcmp(argv[i], "-preserve_wu_files")) {
            preserve_wu_files = true;
        } else if (!strcmp(argv[i], "-preserve_result_files")) {
            preserve_result_files = true;
        } else if (!strcmp(argv[i], "-appid")) {
            appid = atoi(argv[++i]);
        } else if (!strcmp(argv[i], "-d")) {
            log_messages.set_debug_level(atoi(argv[++i]));
        } else if (!strcmp(argv[i], "-mod")) {
            id_modulus   = atoi(argv[++i]);
            id_remainder = atoi(argv[++i]);
        } else if (!strcmp(argv[i], "-dont_delete_antiques")) {
            dont_delete_antiques = true;
        } else if (!strcmp(argv[i], "-dont_delete_batches")) {
            dont_delete_batches = true;
        } else if (!strcmp(argv[i], "-delete_antiques_now")) {
            antique_delay = 0;
        } else if (!strcmp(argv[i], "-input_files_only")) {
            do_output_files = false;
            dont_delete_antiques = true;
        } else if (!strcmp(argv[i], "-output_files_only")) {
            do_input_files = false;
        } else if (!strcmp(argv[i], "-sleep_interval")) {
            sleep_interval = atoi(argv[++i]);
        } else if (!strcmp(argv[i], "-help")) {
            usage();
        } else {
            log_messages.printf(MSG_CRITICAL,
                "Unrecognized arg: %s\n", argv[i]
            );
            usage();
        }
    }

    if (id_modulus) {
        log_messages.printf(MSG_DEBUG,
            "Using mod'ed WU/result enumeration.  mod = %d  rem = %d\n",
            id_modulus, id_remainder
        );
    }

    retval = config.parse_file();
    if (retval) {
        log_messages.printf(MSG_CRITICAL,
            "Can't parse config.xml: %s\n", boincerror(retval)
        );
        exit(1);
    }

    log_messages.printf(MSG_NORMAL, "Starting\n");

    retval = boinc_db.open(config.db_name, config.db_host, config.db_user, config.db_passwd);
    if (retval) {
        log_messages.printf(MSG_CRITICAL, "can't open DB\n");
        exit(1);
    }
    retval = boinc_db.set_isolation_level(READ_UNCOMMITTED);
    if (retval) {
        log_messages.printf(MSG_CRITICAL,
            "boinc_db.set_isolation_level: %d; %s\n", retval, boinc_db.error_string()
        );
    }
    install_stop_signal_handler();

    bool retry_errors_now = !dont_retry_errors;
    double next_error_time=0;
    double next_antique_time = dtime() + antique_delay;
    while (1) {
        bool got_any = do_pass(false);
        if (retry_errors_now) {
            bool got_any_errors = do_pass(true);
            if (got_any_errors) {
                got_any = true;
            } else {
                retry_errors_now = false;
                next_error_time = dtime() + ERROR_INTERVAL;
                log_messages.printf(MSG_DEBUG,
                    "ending retry of previous errors\n"
                );
            }
        }
        if (!got_any) {
            if (one_pass) break;
            sleep(sleep_interval);
        }
        if (!dont_delete_antiques && (dtime() > next_antique_time)) {
            log_messages.printf(MSG_DEBUG,
                "Doing antique deletion pass\n"
            );
            do_antique_pass();
            next_antique_time = dtime() + ANTIQUE_INTERVAL;
        }
        if (!dont_retry_errors && !retry_errors_now && (dtime() > next_error_time)) {
            retry_errors_now = true;
            log_messages.printf(MSG_DEBUG,
                "starting retry of previous errors\n"
            );
        }
    }
}