5d301b8aec
Instead of adding matches per device, we now add logind matches per session. This reduces the number of matches considerably and saves resources.
189 lines
4.8 KiB
C
189 lines
4.8 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright (C) 2014 David Herrmann <dh.herrmann@gmail.com>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#pragma once
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#include <inttypes.h>
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#include <libudev.h>
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#include <linux/input.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <systemd/sd-bus.h>
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#include <systemd/sd-event.h>
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#include <xkbcommon/xkbcommon.h>
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#include "hashmap.h"
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#include "idev.h"
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#include "list.h"
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#include "util.h"
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typedef struct idev_link idev_link;
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typedef struct idev_device_vtable idev_device_vtable;
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typedef struct idev_element idev_element;
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typedef struct idev_element_vtable idev_element_vtable;
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/*
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* Evdev Elements
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*/
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bool idev_is_evdev(idev_element *e);
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idev_element *idev_find_evdev(idev_session *s, dev_t devnum);
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int idev_evdev_new(idev_element **out, idev_session *s, struct udev_device *ud);
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/*
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* Keyboard Devices
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*/
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bool idev_is_keyboard(idev_device *d);
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idev_device *idev_find_keyboard(idev_session *s, const char *name);
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int idev_keyboard_new(idev_device **out, idev_session *s, const char *name);
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/*
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* Element Links
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*/
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struct idev_link {
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/* element-to-device connection */
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LIST_FIELDS(idev_link, links_by_element);
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idev_element *element;
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/* device-to-element connection */
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LIST_FIELDS(idev_link, links_by_device);
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idev_device *device;
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};
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/*
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* Devices
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*/
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struct idev_device_vtable {
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void (*free) (idev_device *d);
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void (*attach) (idev_device *d, idev_link *l);
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void (*detach) (idev_device *d, idev_link *l);
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int (*feed) (idev_device *d, idev_data *data);
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};
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struct idev_device {
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const idev_device_vtable *vtable;
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idev_session *session;
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char *name;
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LIST_HEAD(idev_link, links);
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bool public : 1;
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bool enabled : 1;
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};
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#define IDEV_DEVICE_INIT(_vtable, _session) ((idev_device){ \
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.vtable = (_vtable), \
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.session = (_session), \
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})
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idev_device *idev_find_device(idev_session *s, const char *name);
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int idev_device_add(idev_device *d, const char *name);
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idev_device *idev_device_free(idev_device *d);
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DEFINE_TRIVIAL_CLEANUP_FUNC(idev_device*, idev_device_free);
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int idev_device_feed(idev_device *d, idev_data *data);
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void idev_device_feedback(idev_device *d, idev_data *data);
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/*
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* Elements
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*/
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struct idev_element_vtable {
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void (*free) (idev_element *e);
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void (*enable) (idev_element *e);
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void (*disable) (idev_element *e);
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void (*open) (idev_element *e);
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void (*close) (idev_element *e);
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void (*resume) (idev_element *e, int fd);
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void (*pause) (idev_element *e, const char *mode);
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void (*feedback) (idev_element *e, idev_data *data);
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};
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struct idev_element {
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const idev_element_vtable *vtable;
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idev_session *session;
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unsigned long n_open;
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char *name;
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LIST_HEAD(idev_link, links);
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bool enabled : 1;
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bool readable : 1;
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bool writable : 1;
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};
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#define IDEV_ELEMENT_INIT(_vtable, _session) ((idev_element){ \
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.vtable = (_vtable), \
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.session = (_session), \
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})
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idev_element *idev_find_element(idev_session *s, const char *name);
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int idev_element_add(idev_element *e, const char *name);
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idev_element *idev_element_free(idev_element *e);
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DEFINE_TRIVIAL_CLEANUP_FUNC(idev_element*, idev_element_free);
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int idev_element_feed(idev_element *e, idev_data *data);
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void idev_element_feedback(idev_element *e, idev_data *data);
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/*
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* Sessions
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*/
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struct idev_session {
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idev_context *context;
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char *name;
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char *path;
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sd_bus_slot *slot_resume_device;
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sd_bus_slot *slot_pause_device;
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Hashmap *element_map;
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Hashmap *device_map;
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idev_event_fn event_fn;
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void *userdata;
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bool custom : 1;
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bool managed : 1;
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bool enabled : 1;
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};
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idev_session *idev_find_session(idev_context *c, const char *name);
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int idev_session_raise_device_data(idev_session *s, idev_device *d, idev_data *data);
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/*
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* Contexts
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*/
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struct idev_context {
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unsigned long ref;
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sd_event *event;
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sd_bus *sysbus;
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Hashmap *session_map;
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Hashmap *data_map;
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};
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