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/* Copyright (c) 2005-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "restrict-access.h"
#include "ioloop.h"
#include "randgen.h"
#include "str.h"
#include "stats-dist.h"
#include "process-title.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-commands.h"
#include "dict-connection.h"
#include "dict-settings.h"
#include "dict-init-cache.h"
#include "main.h"
#include <math.h>
static struct module *modules;
static struct timeout *to_proctitle;
static bool proctitle_updated;
static struct ioloop *main_ioloop;
static void
add_stats_string(string_t *str, struct stats_dist *stats, const char *name)
{
uint64_t min, max, p95;
double avg;
min = stats_dist_get_min(stats);
avg = stats_dist_get_avg(stats);
p95 = stats_dist_get_95th(stats);
max = stats_dist_get_max(stats);
str_printfa(str, ", %u %s:%llu/%lld/%llu/%llu",
stats_dist_get_count(stats), name,
(unsigned long long)min/1000, llrint(avg/1000),
(unsigned long long)p95/1000,
(unsigned long long)max/1000);
stats_dist_reset(stats);
}
static void dict_proctitle_update(void *context ATTR_UNUSED)
{
string_t *str = t_str_new(128);
if (!proctitle_updated)
timeout_remove(&to_proctitle);
str_printfa(str, "[%u clients", dict_connections_current_count());
add_stats_string(str, cmd_stats.lookups, "lookups");
add_stats_string(str, cmd_stats.iterations, "iters");
add_stats_string(str, cmd_stats.commits, "commits");
str_append_c(str, ']');
process_title_set(str_c(str));
proctitle_updated = FALSE;
}
void dict_proctitle_update_later(void)
{
if (!dict_settings->verbose_proctitle)
return;
if (to_proctitle == NULL)
to_proctitle = timeout_add_to(main_ioloop, 1000, dict_proctitle_update, NULL);
proctitle_updated = TRUE;
}
static void dict_die(void)
{
/* hope that other processes relying on us will die first. */
}
static void client_connected(struct master_service_connection *conn)
{
master_service_client_connection_accept(conn);
(void)dict_connection_create(conn);
}
static void main_preinit(void)
{
/* Load built-in SQL drivers (if any) */
sql_drivers_init();
sql_drivers_register_all();
#ifdef HAVE_CDB
dict_driver_register(&dict_driver_cdb);
#endif
restrict_access_by_env(RESTRICT_ACCESS_FLAG_ALLOW_ROOT, NULL);
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("DB_CONFIG", dict_settings->dict_db_config);
}
i_zero(&mod_set);
mod_set.abi_version = DOVECOT_ABI_VERSION;
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();
dict_commands_init();
dict_connections_init();
if (dict_settings->verbose_proctitle)
dict_proctitle_update(NULL);
}
static void main_deinit(void)
{
/* wait for all dict operations to finish */
dict_init_cache_wait_all();
/* connections should no longer have any extra refcounts */
dict_connections_destroy_all();
dict_init_cache_destroy_all();
dict_drivers_unregister_all();
dict_commands_deinit();
module_dir_unload(&modules);
sql_drivers_deinit();
timeout_remove(&to_proctitle);
}
int main(int argc, char *argv[])
{
const enum master_service_flags service_flags = 0;
const struct setting_parser_info *set_roots[] = {
&dict_setting_parser_info,
NULL
};
const char *error;
master_service = master_service_init("dict", service_flags,
&argc, &argv, "");
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_with_pid(master_service);
main_preinit();
master_service_set_die_callback(master_service, dict_die);
main_ioloop = current_ioloop;
main_init();
master_service_init_finish(master_service);
master_service_run(master_service, client_connected);
/* clean up cached dicts */
main_deinit();
master_service_deinit(&master_service);
return 0;
}
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