src/dict/main.c

	main.c revision e59faf65ce864fe95dc00f5d52b8323cdbd0608a
/* Copyright (c) 2005-2010 Dovecot authors, see the included COPYING file */

#include "lib.h"
#include "restrict-access.h"
#include "randgen.h"
#include "env-util.h"
#include "module-dir.h"
#include "master-service.h"
#include "master-service-settings.h"
#include "sql-api.h"
#include "dict.h"
#include "dict-client.h"
#include "dict-connection.h"
#include "dict-settings.h"

static struct module *modules;

static void dict_die(void)
{
    /* hope that other processes relying on us will die first. */
}

static void client_connected(const struct master_service_connection *conn)
{
    dict_connection_create(conn->fd);
}

static void main_preinit(void)
{
    /* Maybe needed. Have to open /dev/urandom before possible
       chrooting. */
    random_init();

    /* Load built-in SQL drivers (if any) */
    sql_drivers_init();
    sql_drivers_register_all();

    restrict_access_by_env(NULL, FALSE);
    restrict_access_allow_coredumps(TRUE);
}

static void main_init(void)
{
    struct module_dir_load_settings mod_set;
    void **sets;

    sets = master_service_settings_get_others(master_service);
    dict_settings = sets[0];

    if (*dict_settings->dict_db_config != '\0') {
        /* for berkeley db library */
        env_put(t_strconcat("DB_CONFIG=", dict_settings->dict_db_config,
                    NULL));
    }

    memset(&mod_set, 0, sizeof(mod_set));
    mod_set.version = master_service_get_version_string(master_service);
    mod_set.require_init_funcs = TRUE;

    modules = module_dir_load(DICT_MODULE_DIR, NULL, &mod_set);
    module_dir_init(modules);

    /* Register only after loading modules. They may contain SQL drivers,
       which we'll need to register. */
    dict_drivers_register_all();
}

static void main_deinit(void)
{
    dict_connections_destroy_all();
    module_dir_unload(&modules);

    dict_drivers_unregister_all();

    sql_drivers_deinit();
    random_deinit();
}

int main(int argc, char *argv[])
{
    const struct setting_parser_info *set_roots[] = {
        &dict_setting_parser_info,
        NULL
    };
    const char *error;

    master_service = master_service_init("dict", 0, &argc, &argv, NULL);
    if (master_getopt(master_service) > 0)
        return FATAL_DEFAULT;

    if (master_service_settings_read_simple(master_service, set_roots,
                        &error) < 0)
        i_fatal("Error reading configuration: %s", error);

    master_service_init_log(master_service, "dict: ");
    main_preinit();
    master_service_init_finish(master_service);
    master_service_set_die_callback(master_service, dict_die);

    main_init();
    master_service_run(master_service, client_connected);

    main_deinit();
    master_service_deinit(&master_service);
        return 0;
}