daemon.h File Reference

The daemon consists of global settings and a number of workers. More...

#include "util/locks.h"
#include "util/alloc.h"
#include "services/modstack.h"

Data Structures
struct	daemon
	Structure holding worker list. More...
Functions
struct daemon *	daemon_init (void)
	Initialize daemon structure.
int	daemon_open_shared_ports (struct daemon *daemon)
	Open shared listening ports (if needed).
void	daemon_fork (struct daemon *daemon)
	Fork workers and start service.
void	daemon_cleanup (struct daemon *daemon)
	Close off the worker thread information.
void	daemon_delete (struct daemon *daemon)
	Delete workers, close listening ports.
void	daemon_apply_cfg (struct daemon *daemon, struct config_file *cfg)
	Apply config settings.

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Detailed Description

The daemon consists of global settings and a number of workers.

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Function Documentation

struct daemon* daemon_init

(

void

)

[read]

Initialize daemon structure.

Returns:

: The daemon structure, or NULL on error.

References fatal_exit(), signal_handling_record(), comp_meth, ub_systemseed(), daemon::need_to_exit, modstack_init(), daemon::mods, daemon::env, alloc_init(), daemon::superalloc, daemon::acl, acl_list_create(), daemon::time_boot, log_err(), and daemon::time_last_stat.

Referenced by run_daemon(), and service_init().

int daemon_open_shared_ports

(

struct daemon *

daemon

)

Open shared listening ports (if needed).

The cfg member pointer must have been set for the daemon.

Parameters:

daemon,:

the daemon.

Returns:

: false on error.

References log_assert, daemon::cfg, config_file::port, daemon::listening_port, listening_ports_free(), daemon::ports, listening_ports_open(), config_file::remote_control_enable, daemon::rc_port, daemon::rc_ports, config_file::control_port, and daemon_remote_open_ports().

Referenced by run_daemon(), and service_init().

void daemon_fork

(

struct daemon *

daemon

)

Fork workers and start service.

When the routine exits, it is no longer forked.

Parameters:

daemon,:

the daemon.

References log_assert, acl_list_apply_cfg(), daemon::acl, daemon::cfg, fatal_exit(), daemon::local_zones, local_zones_create(), local_zones_apply_cfg(), daemon_setup_modules(), daemon_create_workers(), worker_init(), daemon::workers, daemon::ports, daemon_start_others(), signal_handling_playback(), log_info(), worker_work(), daemon_stop_others(), daemon::need_to_exit, and worker::need_to_exit.

Referenced by run_daemon(), and service_main().

void daemon_cleanup

(

struct daemon *

daemon

)

Close off the worker thread information.

Bring the daemon back into state ready for daemon_fork again.

Parameters:

daemon,:

the daemon.

References log_assert, signal_handling_record(), log_thread_set(), slabhash_clear(), daemon::env, module_env::rrset_cache, rrset_cache::table, module_env::msg_cache, local_zones_delete(), daemon::local_zones, daemon_remote_clear(), daemon::rc, daemon::num, worker_delete(), daemon::workers, and daemon::cfg.

Referenced by run_daemon(), service_deinit(), and service_main().

void daemon_delete

(

struct daemon *

daemon

)

Delete workers, close listening ports.

Parameters:

daemon,:

the daemon.

References modstack_desetup(), daemon::mods, daemon::env, daemon_remote_delete(), daemon::rc, listening_ports_free(), daemon::ports, daemon::rc_ports, slabhash_delete(), module_env::msg_cache, rrset_cache_delete(), module_env::rrset_cache, infra_delete(), module_env::infra_cache, ub_randfree(), daemon::rand, alloc_clear(), daemon::superalloc, acl_list_delete(), daemon::acl, daemon::chroot, daemon::pidfile, daemon::listen_sslctx, ub_c_lex_destroy(), comp_meth, and log_err().

Referenced by run_daemon(), service_init(), and service_deinit().

void daemon_apply_cfg	(	struct daemon *	daemon,
		struct config_file *	cfg
	)

Apply config settings.

Parameters:

daemon,:	the daemon.
cfg,:	new config settings.

References daemon::cfg, config_apply(), daemon::env, module_env::msg_cache, config_file::msg_cache_size, slabhash_get_size(), config_file::msg_cache_slabs, slabhash::size, slabhash_delete(), slabhash_create(), HASH_DEFAULT_STARTARRAY, msgreply_sizefunc(), query_info_compare(), query_entry_delete(), reply_info_delete(), fatal_exit(), module_env::rrset_cache, rrset_cache_adjust(), daemon::superalloc, module_env::infra_cache, and infra_adjust().

Referenced by apply_settings(), and service_init().