#include "all.h"
#include "yajl_utils.h"
#include <ev.h>
#include <fcntl.h>
#include <libgen.h>
#include <locale.h>
#include <stdint.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <yajl/yajl_gen.h>
#include <yajl/yajl_parse.h>

Include dependency graph for ipc.c:

Data Structures
struct	sync_state

Macros
#define	DUMP_PROPERTY(key, prop_name)

#define	DUMP_REGEX(re_name)

#define	YSTR_IF_SET(name)

#define	YSTR_IF_SET(name)

Functions
	TAILQ_HEAD (ipc_client_head, ipc_client)

static void	ipc_client_timeout (EV_P_ ev_timer *w, int revents)

static void	ipc_socket_writeable_cb (EV_P_ struct ev_io *w, int revents)

void	ipc_set_kill_timeout (ev_tstamp new)
	Set the maximum duration that we allow for a connection with an unwriteable socket. More...

static void	ipc_push_pending (ipc_client *client)

static void	ipc_send_client_message (ipc_client client, size_t size, const uint32_t message_type, const uint8_t payload)

static void	free_ipc_client (ipc_client *client, int exempt_fd)

void	ipc_send_event (const char event, uint32_t message_type, const char payload)
	Sends the specified event to all IPC clients which are currently connected and subscribed to this kind of event. More...

static void	ipc_send_shutdown_event (shutdown_reason_t reason)

void	ipc_shutdown (shutdown_reason_t reason, int exempt_fd)
	Calls shutdown() on each socket and closes it. More...

	IPC_HANDLER (run_command)

static void	dump_rect (yajl_gen gen, const char *name, Rect r)

static void	dump_event_state_mask (yajl_gen gen, Binding *bind)

static void	dump_binding (yajl_gen gen, Binding *bind)

void	dump_node (yajl_gen gen, struct Con *con, bool inplace_restart)

static void	dump_bar_bindings (yajl_gen gen, Barconfig *config)

static char *	canonicalize_output_name (char *name)

static void	dump_bar_config (yajl_gen gen, Barconfig *config)

	IPC_HANDLER (tree)

	IPC_HANDLER (get_workspaces)

	IPC_HANDLER (get_outputs)

	IPC_HANDLER (get_marks)

	IPC_HANDLER (get_version)

	IPC_HANDLER (get_bar_config)

	IPC_HANDLER (get_binding_modes)

static int	add_subscription (void extra, const unsigned char s, ylength len)

	IPC_HANDLER (subscribe)

	IPC_HANDLER (get_config)

	IPC_HANDLER (send_tick)

static int	_sync_json_key (void extra, const unsigned char val, size_t len)

static int	_sync_json_int (void *extra, long long val)

	IPC_HANDLER (sync)

	IPC_HANDLER (get_binding_state)

static void	ipc_receive_message (EV_P_ struct ev_io *w, int revents)

static void	ipc_socket_writeable_cb (EV_P_ ev_io *w, int revents)

void	ipc_new_client (EV_P_ struct ev_io *w, int revents)
	Handler for activity on the listening socket, meaning that a new client has just connected and we should accept() him. More...

ipc_client *	ipc_new_client_on_fd (EV_P_ int fd)
	ipc_new_client_on_fd() only sets up the event handler for activity on the new connection and inserts the file descriptor into the list of clients. More...

int	ipc_create_socket (const char *filename)
	Creates the UNIX domain socket at the given path, sets it to non-blocking mode, bind()s and listen()s on it. More...

yajl_gen	ipc_marshal_workspace_event (const char change, Con current, Con *old)
	Generates a json workspace event. More...

void	ipc_send_workspace_event (const char change, Con current, Con *old)
	For the workspace events we send, along with the usual "change" field, also the workspace container in "current". More...

void	ipc_send_window_event (const char property, Con con)
	For the window events we send, along the usual "change" field, also the window container, in "container". More...

void	ipc_send_barconfig_update_event (Barconfig *barconfig)
	For the barconfig update events, we send the serialized barconfig. More...

void	ipc_send_binding_event (const char event_type, Binding bind)
	For the binding events, we send the serialized binding struct. More...

void	ipc_confirm_restart (ipc_client *client)
	Sends a restart reply to the IPC client on the specified fd. More...

Variables
char *	current_socketpath = NULL

static ev_tstamp	kill_timeout = 10.0

handler_t	handlers [13]

Macro Definition Documentation

◆ DUMP_PROPERTY

#define DUMP_PROPERTY	(	key,
		prop_name
	)

Value:

    do {                                      \
        if (con->window->prop_name != NULL) { \
            ystr(key);                        \
            ystr(con->window->prop_name);     \
        }                                     \
    } while (0)

◆ DUMP_REGEX

#define DUMP_REGEX ( re_name )

Value:

    do {                                   \
        if (match->re_name != NULL) {      \
            ystr(#re_name);                \
            ystr(match->re_name->pattern); \
        }                                  \
    } while (0)

◆ YSTR_IF_SET [1/2]

#define YSTR_IF_SET ( name )

Value:

    do {                        \
        if (config->name) {     \
            ystr(#name);        \
            ystr(config->name); \
        }                       \
    } while (0)

◆ YSTR_IF_SET [2/2]

#define YSTR_IF_SET ( name )

Value:

    do {                               \
        if (config->colors.name) {     \
            ystr(#name);               \
            ystr(config->colors.name); \
        }                              \
    } while (0)

Function Documentation

◆ _sync_json_int()

static int _sync_json_int	(	void *	extra,
		long long	val
	)

static

Definition at line 1294 of file ipc.c.

References state.

Referenced by IPC_HANDLER().

◆ _sync_json_key()

static int _sync_json_key	(	void *	extra,
		const unsigned char *	val,
		size_t	len
	)

static

Definition at line 1286 of file ipc.c.

References FREE, scalloc(), and state.

Referenced by IPC_HANDLER().

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◆ add_subscription()

static int add_subscription	(	void *	extra,
		const unsigned char *	s,
		ylength	len
	)

static

Definition at line 1155 of file ipc.c.

References DLOG, ipc_client::events, ipc_client::num_events, scalloc(), and srealloc().

Referenced by IPC_HANDLER().

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◆ canonicalize_output_name()

static char* canonicalize_output_name ( char * name )

static

Definition at line 719 of file ipc.c.

References get_output_by_name(), and output_primary_name().

Referenced by dump_bar_config().

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◆ dump_bar_bindings()

static void dump_bar_bindings	(	yajl_gen	gen,
		Barconfig *	config
	)

static

Definition at line 695 of file ipc.c.

References bindings, Barbinding::command, config, Barbinding::input_code, Barbinding::release, TAILQ_EMPTY, TAILQ_FOREACH, y, and ystr.

Referenced by dump_bar_config().

◆ dump_bar_config()

static void dump_bar_config	(	yajl_gen	gen,
		Barconfig *	config
	)

static

Definition at line 728 of file ipc.c.

References canonicalize_output_name(), config, dump_bar_bindings(), tray_output_t::output, TAILQ_EMPTY, TAILQ_FOREACH, y, ystr, and YSTR_IF_SET.

Referenced by IPC_HANDLER(), and ipc_send_barconfig_update_event().

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◆ dump_binding()

static void dump_binding	(	yajl_gen	gen,
		Binding *	bind
	)

static

Definition at line 326 of file ipc.c.

References B_KEYBOARD, Binding::command, dump_event_state_mask(), Binding::input_type, Binding::keycode, Binding::symbol, y, and ystr.

Referenced by ipc_send_binding_event().

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◆ dump_event_state_mask()

static void dump_event_state_mask	(	yajl_gen	gen,
		Binding *	bind
	)

static

Definition at line 264 of file ipc.c.

References Binding::event_state_mask, I3_XKB_GROUP_MASK_1, I3_XKB_GROUP_MASK_2, I3_XKB_GROUP_MASK_3, I3_XKB_GROUP_MASK_4, y, and ystr.

Referenced by dump_binding().

◆ dump_node()

void dump_node	(	yajl_gen	gen,
		struct Con *	con,
		bool	inplace_restart
	)

Definition at line 354 of file ipc.c.

References Con::border_style, BS_NONE, BS_NORMAL, BS_PIXEL, con_get_output(), con_is_split(), con_orientation(), Con::current_border_width, Con::deco_rect, Con::depth, DLOG, Match::dock, DUMP_PROPERTY, dump_rect(), DUMP_REGEX, Con::floating, focused, Con::fullscreen_mode, Con::geometry, HORIZ, i3string_as_utf8(), Window::id, Match::insert_where, L_DEFAULT, L_DOCKAREA, L_OUTPUT, L_SPLITH, L_SPLITV, L_STACKED, L_TABBED, Con::layout, marks, Window::name, mark_t::name, Con::name, Con::num, Con::percent, previous_workspace_name, Con::rect, Match::restart_mode, Con::scratchpad_state, Con::sticky, TAILQ_FOREACH, Con::title_format, Window::transient_for, Con::type, Con::urgent, Con::window, Con::window_rect, Window::window_type, Con::workspace_layout, y, and ystr.

Referenced by IPC_HANDLER(), ipc_marshal_workspace_event(), ipc_send_window_event(), and store_restart_layout().

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◆ dump_rect()

static void dump_rect	(	yajl_gen	gen,
		const char *	name,
		Rect	r
	)

static

Definition at line 250 of file ipc.c.

References Rect::height, Rect::width, Rect::x, Rect::y, y, and ystr.

Referenced by dump_node().

◆ free_ipc_client()

static void free_ipc_client	(	ipc_client *	client,
		int	exempt_fd
	)

static

Definition at line 133 of file ipc.c.

References ipc_client::buffer, DLOG, ipc_client::events, ipc_client::fd, FREE, main_loop, ipc_client::num_events, ipc_client::read_callback, TAILQ_REMOVE, ipc_client::timeout, and ipc_client::write_callback.

Referenced by ipc_client_timeout(), ipc_receive_message(), and ipc_shutdown().

◆ ipc_client_timeout()

static void ipc_client_timeout	(	EV_P_ ev_timer *	w,
		int	revents
	)

static

Definition at line 1418 of file ipc.c.

References ELOG, ipc_client::fd, free_ipc_client(), and sasprintf().

Referenced by ipc_push_pending().

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◆ ipc_confirm_restart()

void ipc_confirm_restart ( ipc_client * client )

Sends a restart reply to the IPC client on the specified fd.

Definition at line 1708 of file ipc.c.

References DLOG, ipc_client::fd, ipc_push_pending(), and ipc_send_client_message().

Referenced by main().

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◆ ipc_create_socket()

int ipc_create_socket ( const char * filename )

Creates the UNIX domain socket at the given path, sets it to non-blocking mode, bind()s and listen()s on it.

Definition at line 1531 of file ipc.c.

References current_socketpath, DEFAULT_DIR_MODE, DLOG, FREE, mkdirp(), path_exists(), resolve_tilde(), and sstrdup().

Referenced by main().

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◆ IPC_HANDLER() [1/13]

IPC_HANDLER ( get_bar_config )

Definition at line 1072 of file ipc.c.

References barconfigs, config, dump_bar_config(), Barconfig::id, ipc_send_client_message(), LOG, sasprintf(), TAILQ_FOREACH, y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [2/13]

IPC_HANDLER ( get_binding_modes )

Definition at line 1133 of file ipc.c.

References ipc_send_client_message(), modes, Mode::name, SLIST_FOREACH, y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [3/13]

IPC_HANDLER ( get_binding_state )

Definition at line 1339 of file ipc.c.

References current_binding_mode, ipc_send_client_message(), y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [4/13]

IPC_HANDLER ( get_config )

Definition at line 1233 of file ipc.c.

References current_config, ipc_send_client_message(), y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [5/13]

IPC_HANDLER ( get_marks )

Definition at line 1012 of file ipc.c.

References all_cons, ipc_send_client_message(), marks, mark_t::name, TAILQ_FOREACH, y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [6/13]

IPC_HANDLER ( get_outputs )

Definition at line 958 of file ipc.c.

References CF_OUTPUT, con_get_fullscreen_con(), ipc_send_client_message(), Con::name, tray_output_t::output, output_primary_name(), outputs, TAILQ_FOREACH, y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [7/13]

IPC_HANDLER ( get_version )

Definition at line 1038 of file ipc.c.

References current_configpath, i3_version, ipc_send_client_message(), y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [8/13]

IPC_HANDLER ( get_workspaces )

Definition at line 891 of file ipc.c.

References con_get_workspace(), con_is_internal(), croot, focused, ipc_send_client_message(), tray_output_t::output, output_get_content(), TAILQ_FOREACH, Con::type, workspace_is_visible(), y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [9/13]

IPC_HANDLER ( run_command )

Definition at line 225 of file ipc.c.

References command_result_free(), ipc_send_client_message(), LOG, CommandResult::needs_tree_render, parse_command(), sstrndup(), and tree_render().

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◆ IPC_HANDLER() [10/13]

IPC_HANDLER ( send_tick )

Definition at line 1255 of file ipc.c.

References DLOG, ipc_send_client_message(), ipc_send_event(), y, ygenalloc, and ystr.

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◆ IPC_HANDLER() [11/13]

IPC_HANDLER ( subscribe )

Definition at line 1183 of file ipc.c.

References add_subscription(), ELOG, ipc_send_client_message(), and yalloc.

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◆ IPC_HANDLER() [12/13]

IPC_HANDLER ( sync )

Definition at line 1304 of file ipc.c.

References _sync_json_int(), _sync_json_key(), DLOG, ELOG, FREE, ipc_send_client_message(), state, sync_respond(), and yalloc.

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◆ IPC_HANDLER() [13/13]

IPC_HANDLER ( tree )

Definition at line 872 of file ipc.c.

References croot, dump_node(), ipc_send_client_message(), y, and ygenalloc.

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◆ ipc_marshal_workspace_event()

yajl_gen ipc_marshal_workspace_event	(	const char *	change,
		Con *	current,
		Con *	old
	)

Generates a json workspace event.

Returns a dynamically allocated yajl generator. Free with yajl_gen_free().

Definition at line 1581 of file ipc.c.

References dump_node(), y, ygenalloc, and ystr.

Referenced by con_on_remove_child(), ipc_send_workspace_event(), and workspace_show().

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◆ ipc_new_client()

void ipc_new_client	(	EV_P_ struct ev_io *	w,
		int	revents
	)

Handler for activity on the listening socket, meaning that a new client has just connected and we should accept() him.

Sets up the event handler for activity on the new connection and inserts the file descriptor into the list of clients.

Definition at line 1481 of file ipc.c.

References ipc_new_client_on_fd().

Referenced by main().

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◆ ipc_new_client_on_fd()

ipc_client* ipc_new_client_on_fd ( EV_P_ int fd )

ipc_new_client_on_fd() only sets up the event handler for activity on the new connection and inserts the file descriptor into the list of clients.

This variant is useful for the inherited IPC connection when restarting.

Definition at line 1506 of file ipc.c.

References DLOG, ipc_client::fd, ipc_receive_message(), ipc_socket_writeable_cb(), ipc_client::read_callback, scalloc(), TAILQ_INSERT_TAIL, and ipc_client::write_callback.

Referenced by ipc_new_client(), and main().

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◆ ipc_push_pending()

static void ipc_push_pending ( ipc_client * client )

static

Definition at line 61 of file ipc.c.

References ipc_client::buffer, ipc_client::buffer_size, ipc_client::fd, FREE, ipc_client_timeout(), kill_timeout, main_loop, scalloc(), srealloc(), ipc_client::timeout, ipc_client::write_callback, and writeall_nonblock().

Referenced by ipc_confirm_restart(), ipc_send_client_message(), and ipc_socket_writeable_cb().

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◆ ipc_receive_message()

static void ipc_receive_message	(	EV_P_ struct ev_io *	w,
		int	revents
	)

static

Definition at line 1385 of file ipc.c.

References DLOG, ipc_client::fd, FREE, free_ipc_client(), handlers, and ipc_recv_message().

Referenced by ipc_new_client_on_fd().

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◆ ipc_send_barconfig_update_event()

void ipc_send_barconfig_update_event ( Barconfig * barconfig )

For the barconfig update events, we send the serialized barconfig.

Definition at line 1659 of file ipc.c.

References DLOG, dump_bar_config(), Barconfig::id, ipc_send_event(), y, and ygenalloc.

Referenced by cmd_bar_hidden_state(), cmd_bar_mode(), and cmd_reload().

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◆ ipc_send_binding_event()

void ipc_send_binding_event	(	const char *	event_type,
		Binding *	bind
	)

For the binding events, we send the serialized binding struct.

Definition at line 1678 of file ipc.c.

References DLOG, dump_binding(), ipc_send_event(), Binding::keycode, Binding::symbol, y, ygenalloc, and ystr.

Referenced by run_binding().

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◆ ipc_send_client_message()

static void ipc_send_client_message	(	ipc_client *	client,
		size_t	size,
		const uint32_t	message_type,
		const uint8_t *	payload
	)

static

Definition at line 114 of file ipc.c.

References ipc_client::buffer, ipc_client::buffer_size, header, ipc_push_pending(), i3_shmlog_header::size, and srealloc().

Referenced by ipc_confirm_restart(), IPC_HANDLER(), and ipc_send_event().

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◆ ipc_send_event()

void ipc_send_event	(	const char *	event,
		uint32_t	message_type,
		const char *	payload
	)

Sends the specified event to all IPC clients which are currently connected and subscribed to this kind of event.

Definition at line 163 of file ipc.c.

References ipc_client::events, ipc_send_client_message(), ipc_client::num_events, and TAILQ_FOREACH.

Referenced by con_on_remove_child(), handle_screen_change(), IPC_HANDLER(), ipc_send_barconfig_update_event(), ipc_send_binding_event(), ipc_send_shutdown_event(), ipc_send_window_event(), ipc_send_workspace_event(), switch_mode(), and workspace_show().

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◆ ipc_send_shutdown_event()

static void ipc_send_shutdown_event ( shutdown_reason_t reason )

static

Definition at line 178 of file ipc.c.

References ipc_send_event(), SHUTDOWN_REASON_EXIT, SHUTDOWN_REASON_RESTART, y, ygenalloc, and ystr.

Referenced by ipc_shutdown().

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◆ ipc_send_window_event()

void ipc_send_window_event	(	const char *	property,
		Con *	con
	)

For the window events we send, along the usual "change" field, also the window container, in "container".

Definition at line 1630 of file ipc.c.

References DLOG, dump_node(), Window::id, ipc_send_event(), Con::window, y, ygenalloc, and ystr.

Referenced by _con_move_to_con(), con_focus(), con_mark(), con_merge_into(), con_set_fullscreen_mode(), con_set_urgency(), con_unmark(), floating_disable(), floating_enable(), handle_windowname_change(), handle_windowname_change_legacy(), manage_window(), move_to_output_directed(), tree_close_internal(), tree_move(), workspace_defer_update_urgent_hint_cb(), and x_push_changes().

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◆ ipc_send_workspace_event()

void ipc_send_workspace_event	(	const char *	change,
		Con *	current,
		Con *	old
	)

For the workspace events we send, along with the usual "change" field, also the workspace container in "current".

For focus events, we send the previously focused workspace in "old".

Definition at line 1614 of file ipc.c.

References ipc_marshal_workspace_event(), ipc_send_event(), and y.

Referenced by cmd_append_layout(), cmd_reload(), cmd_rename_workspace(), create_workspace_on_output(), workspace_get(), workspace_move_to_output(), workspace_show(), and workspace_update_urgent_flag().

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◆ ipc_set_kill_timeout()

void ipc_set_kill_timeout ( ev_tstamp new )

Set the maximum duration that we allow for a connection with an unwriteable socket.

Definition at line 51 of file ipc.c.

References kill_timeout.

Referenced by CFGFUN().

◆ ipc_shutdown()

void ipc_shutdown	(	shutdown_reason_t	reason,
		int	exempt_fd
	)

Calls shutdown() on each socket and closes it.

This function is to be called when exiting or restarting only!

exempt_fd is never closed. Set to -1 to close all fds.

Definition at line 208 of file ipc.c.

References ipc_client::fd, free_ipc_client(), ipc_send_shutdown_event(), TAILQ_EMPTY, and TAILQ_FIRST.

Referenced by cmd_restart(), i3_exit(), and i3_restart().

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◆ ipc_socket_writeable_cb() [1/2]

static void ipc_socket_writeable_cb	(	EV_P_ ev_io *	w,
		int	revents
	)

static

Definition at line 1464 of file ipc.c.

References DLOG, ipc_push_pending(), and ipc_client::timeout.

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◆ ipc_socket_writeable_cb() [2/2]

static void ipc_socket_writeable_cb	(	EV_P_ struct ev_io *	w,
		int	revents
	)

static

Referenced by ipc_new_client_on_fd().

◆ TAILQ_HEAD()

TAILQ_HEAD	(	ipc_client_head	,
		ipc_client
	)

Definition at line 28 of file ipc.c.

Variable Documentation

◆ current_socketpath

char* current_socketpath = NULL

Definition at line 26 of file ipc.c.

Referenced by ipc_create_socket(), main(), start_application(), and x_set_i3_atoms().

◆ handlers

handler_t handlers[13]

Initial value:

= {
    handle_run_command,
    handle_get_workspaces,
    handle_subscribe,
    handle_get_outputs,
    handle_tree,
    handle_get_marks,
    handle_get_bar_config,
    handle_get_version,
    handle_get_binding_modes,
    handle_get_config,
    handle_send_tick,
    handle_sync,
    handle_get_binding_state,
}

Definition at line 1359 of file ipc.c.

Referenced by ipc_receive_message().

◆ kill_timeout

ev_tstamp kill_timeout = 10.0

static

Definition at line 49 of file ipc.c.

Referenced by ipc_push_pending(), and ipc_set_kill_timeout().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ DUMP_PROPERTY

◆ DUMP_REGEX

◆ YSTR_IF_SET [1/2]

◆ YSTR_IF_SET [2/2]

Function Documentation

◆ _sync_json_int()

◆ _sync_json_key()

◆ add_subscription()

◆ canonicalize_output_name()

◆ dump_bar_bindings()

◆ dump_bar_config()

◆ dump_binding()

◆ dump_event_state_mask()

◆ dump_node()

◆ dump_rect()

◆ free_ipc_client()

◆ ipc_client_timeout()

◆ ipc_confirm_restart()

◆ ipc_create_socket()

◆ IPC_HANDLER() [1/13]

◆ IPC_HANDLER() [2/13]

◆ IPC_HANDLER() [3/13]

◆ IPC_HANDLER() [4/13]

◆ IPC_HANDLER() [5/13]

◆ IPC_HANDLER() [6/13]

◆ IPC_HANDLER() [7/13]

◆ IPC_HANDLER() [8/13]

◆ IPC_HANDLER() [9/13]

◆ IPC_HANDLER() [10/13]

◆ IPC_HANDLER() [11/13]

◆ IPC_HANDLER() [12/13]

◆ IPC_HANDLER() [13/13]

◆ ipc_marshal_workspace_event()

◆ ipc_new_client()

◆ ipc_new_client_on_fd()

◆ ipc_push_pending()

◆ ipc_receive_message()

◆ ipc_send_barconfig_update_event()

◆ ipc_send_binding_event()

◆ ipc_send_client_message()

◆ ipc_send_event()

◆ ipc_send_shutdown_event()

◆ ipc_send_window_event()

◆ ipc_send_workspace_event()

◆ ipc_set_kill_timeout()

◆ ipc_shutdown()

◆ ipc_socket_writeable_cb() [1/2]

◆ ipc_socket_writeable_cb() [2/2]

◆ TAILQ_HEAD()

Variable Documentation

◆ current_socketpath

◆ handlers

◆ kill_timeout