#include <sys/ioctl.h>
#include <unistd.h>
#include <linux/input.h>
-#include <sys/epoll.h>
+#include "sd-messages.h"
#include "conf-parser.h"
#include "util.h"
-#include "logind-button.h"
#include "special.h"
-#include "dbus-common.h"
+#include "logind-button.h"
Button* button_new(Manager *m, const char *name) {
Button *b;
hashmap_remove(b->manager->buttons, b->name);
+ sd_event_source_unref(b->io_event_source);
+ sd_event_source_unref(b->check_event_source);
+
if (b->fd >= 0) {
- hashmap_remove(b->manager->button_fds, INT_TO_PTR(b->fd + 1));
- assert_se(epoll_ctl(b->manager->epoll_fd, EPOLL_CTL_DEL, b->fd, NULL) == 0);
- close_nointr_nofail(b->fd);
+ /* If the device has been unplugged close() returns
+ * ENODEV, let's ignore this, hence we don't use
+ * close_nointr_nofail() */
+ close(b->fd);
}
free(b->name);
return 0;
}
-int button_open(Button *b) {
- char name[256], *p;
- struct epoll_event ev;
- int r;
+static int button_recheck(sd_event_source *e, void *userdata) {
+ Button *b = userdata;
assert(b);
+ assert(b->lid_closed);
- if (b->fd >= 0) {
- close_nointr_nofail(b->fd);
- b->fd = -1;
- }
+ manager_handle_action(b->manager, INHIBIT_HANDLE_LID_SWITCH, b->manager->handle_lid_switch, b->manager->lid_switch_ignore_inhibited, false);
+ return 1;
+}
- p = strappend("/dev/input/", b->name);
- if (!p)
- return log_oom();
+static int button_install_check_event_source(Button *b) {
+ int r;
+ assert(b);
- b->fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
- free(p);
- if (b->fd < 0) {
- log_warning("Failed to open %s: %m", b->name);
- return -errno;
- }
+ /* Install a post handler, so that we keep rechecking as long as the lid is closed. */
- if (ioctl(b->fd, EVIOCGNAME(sizeof(name)), name) < 0) {
- log_error("Failed to get input name: %m");
- r = -errno;
- goto fail;
- }
+ if (b->check_event_source)
+ return 0;
- zero(ev);
- ev.events = EPOLLIN;
- ev.data.u32 = FD_OTHER_BASE + b->fd;
+ r = sd_event_add_post(b->manager->event, &b->check_event_source, button_recheck, b);
+ if (r < 0)
+ return r;
- if (epoll_ctl(b->manager->epoll_fd, EPOLL_CTL_ADD, b->fd, &ev) < 0) {
- log_error("Failed to add to epoll: %m");
- r = -errno;
- goto fail;
- }
+ return sd_event_source_set_priority(b->check_event_source, SD_EVENT_PRIORITY_IDLE+1);
+}
- r = hashmap_put(b->manager->button_fds, INT_TO_PTR(b->fd + 1), b);
- if (r < 0) {
- log_error("Failed to add to hash map: %s", strerror(-r));
- assert_se(epoll_ctl(b->manager->epoll_fd, EPOLL_CTL_DEL, b->fd, NULL) == 0);
- goto fail;
- }
+static int button_dispatch(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+ Button *b = userdata;
+ struct input_event ev;
+ ssize_t l;
- log_info("Watching system buttons on /dev/input/%s (%s)", b->name, name);
+ assert(s);
+ assert(fd == b->fd);
+ assert(b);
- return 0;
+ l = read(b->fd, &ev, sizeof(ev));
+ if (l < 0)
+ return errno != EAGAIN ? -errno : 0;
+ if ((size_t) l < sizeof(ev))
+ return -EIO;
-fail:
- close_nointr_nofail(b->fd);
- b->fd = -1;
- return r;
-}
+ if (ev.type == EV_KEY && ev.value > 0) {
-static Session *button_get_session(Button *b) {
- Seat *seat;
- assert(b);
+ switch (ev.code) {
- if (!b->seat)
- return NULL;
+ case KEY_POWER:
+ case KEY_POWER2:
+ log_struct(LOG_INFO,
+ "MESSAGE=Power key pressed.",
+ MESSAGE_ID(SD_MESSAGE_POWER_KEY),
+ NULL);
- seat = hashmap_get(b->manager->seats, b->seat);
- if (!seat)
- return NULL;
+ manager_handle_action(b->manager, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true);
+ break;
- return seat->active;
-}
+ /* The kernel is a bit confused here:
-static int button_power_off(Button *b, HandleButton handle) {
- DBusError error;
- int r;
+ KEY_SLEEP = suspend-to-ram, which everybody else calls "suspend"
+ KEY_SUSPEND = suspend-to-disk, which everybody else calls "hibernate"
+ */
- assert(b);
+ case KEY_SLEEP:
+ log_struct(LOG_INFO,
+ "MESSAGE=Suspend key pressed.",
+ MESSAGE_ID(SD_MESSAGE_SUSPEND_KEY),
+ NULL);
- if (handle == HANDLE_OFF)
- return 0;
+ manager_handle_action(b->manager, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true);
+ break;
+
+ case KEY_SUSPEND:
+ log_struct(LOG_INFO,
+ "MESSAGE=Hibernate key pressed.",
+ MESSAGE_ID(SD_MESSAGE_HIBERNATE_KEY),
+ NULL);
- if (handle == HANDLE_NO_SESSION) {
- if (hashmap_size(b->manager->sessions) > 0) {
- log_error("Refusing power-off, user is logged in.");
- warn_melody();
- return -EPERM;
+ manager_handle_action(b->manager, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true);
+ break;
}
- } else if (handle == HANDLE_TTY_SESSION ||
- handle == HANDLE_ANY_SESSION) {
- unsigned n;
- Session *s;
+ } else if (ev.type == EV_SW && ev.value > 0) {
+
+ if (ev.code == SW_LID) {
+ log_struct(LOG_INFO,
+ "MESSAGE=Lid closed.",
+ MESSAGE_ID(SD_MESSAGE_LID_CLOSED),
+ NULL);
- n = hashmap_size(b->manager->sessions);
- s = button_get_session(b);
+ b->lid_closed = true;
+ manager_handle_action(b->manager, INHIBIT_HANDLE_LID_SWITCH, b->manager->handle_lid_switch, b->manager->lid_switch_ignore_inhibited, true);
+ button_install_check_event_source(b);
- /* Silently ignore events of graphical sessions */
- if (handle == HANDLE_TTY_SESSION &&
- s && s->type == SESSION_X11)
- return 0;
+ } else if (ev.code == SW_DOCK) {
+ log_struct(LOG_INFO,
+ "MESSAGE=System docked.",
+ MESSAGE_ID(SD_MESSAGE_SYSTEM_DOCKED),
+ NULL);
- if (n > 1 || (n == 1 && !s)) {
- log_error("Refusing power-off, other user is logged in.");
- warn_melody();
- return -EPERM;
+ b->docked = true;
}
- }
+ } else if (ev.type == EV_SW && ev.value == 0) {
- if (handle != HANDLE_ALWAYS) {
- if (manager_is_inhibited(b->manager, INHIBIT_SHUTDOWN, INHIBIT_BLOCK, NULL)) {
- log_error("Refusing power-off, shutdown is inhibited.");
- warn_melody();
- return -EPERM;
- }
- }
+ if (ev.code == SW_LID) {
+ log_struct(LOG_INFO,
+ "MESSAGE=Lid opened.",
+ MESSAGE_ID(SD_MESSAGE_LID_OPENED),
+ NULL);
- log_info("Powering off...");
+ b->lid_closed = false;
+ b->check_event_source = sd_event_source_unref(b->check_event_source);
- dbus_error_init(&error);
- r = bus_manager_shutdown_or_sleep_now_or_later(b->manager, SPECIAL_POWEROFF_TARGET, INHIBIT_SHUTDOWN, &error);
- if (r < 0) {
- log_error("Failed to power off: %s", bus_error_message(&error));
- dbus_error_free(&error);
+ } else if (ev.code == SW_DOCK) {
+ log_struct(LOG_INFO,
+ "MESSAGE=System undocked.",
+ MESSAGE_ID(SD_MESSAGE_SYSTEM_UNDOCKED),
+ NULL);
+
+ b->docked = false;
+ }
}
- return r;
+ return 0;
}
-static int button_suspend(Button *b, HandleButton handle) {
- DBusError error;
+int button_open(Button *b) {
+ char *p, name[256];
int r;
assert(b);
- if (handle == HANDLE_OFF)
- return 0;
-
- if (handle == HANDLE_NO_SESSION) {
- if (hashmap_size(b->manager->sessions) > 0) {
- log_error("Refusing suspend, user is logged in.");
- warn_melody();
- return -EPERM;
- }
-
- } else if (handle == HANDLE_TTY_SESSION ||
- handle == HANDLE_ANY_SESSION) {
- unsigned n;
- Session *s;
-
- n = hashmap_size(b->manager->sessions);
- s = button_get_session(b);
+ if (b->fd >= 0) {
+ close(b->fd);
+ b->fd = -1;
+ }
- /* Silently ignore events of graphical sessions */
- if (handle == HANDLE_TTY_SESSION &&
- s && s->type == SESSION_X11)
- return 0;
+ p = strappenda("/dev/input/", b->name);
- if (n > 1 || (n == 1 && !s)) {
- log_error("Refusing suspend, other user is logged in.");
- warn_melody();
- return -EPERM;
- }
+ b->fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
+ if (b->fd < 0) {
+ log_warning("Failed to open %s: %m", b->name);
+ return -errno;
}
- if (handle != HANDLE_ALWAYS) {
- if (manager_is_inhibited(b->manager, INHIBIT_SLEEP, INHIBIT_BLOCK, NULL)) {
- log_error("Refusing suspend, sleeping is inhibited.");
- warn_melody();
- return -EPERM;
- }
+ if (ioctl(b->fd, EVIOCGNAME(sizeof(name)), name) < 0) {
+ log_error("Failed to get input name: %m");
+ r = -errno;
+ goto fail;
}
- log_info("Suspending...");
-
- dbus_error_init(&error);
- r = bus_manager_shutdown_or_sleep_now_or_later(b->manager, SPECIAL_SUSPEND_TARGET, INHIBIT_SLEEP, &error);
+ r = sd_event_add_io(b->manager->event, &b->io_event_source, b->fd, EPOLLIN, button_dispatch, b);
if (r < 0) {
- log_error("Failed to suspend: %s", bus_error_message(&error));
- dbus_error_free(&error);
+ log_error("Failed to add button event: %s", strerror(-r));
+ goto fail;
}
+ log_info("Watching system buttons on /dev/input/%s (%s)", b->name, name);
+
+ return 0;
+
+fail:
+ close(b->fd);
+ b->fd = -1;
return r;
}
-int button_process(Button *b) {
- struct input_event ev;
- ssize_t l;
-
+int button_check_switches(Button *b) {
+ uint8_t switches[SW_MAX/8+1] = {};
assert(b);
- l = read(b->fd, &ev, sizeof(ev));
- if (l < 0)
- return errno != EAGAIN ? -errno : 0;
- if ((size_t) l < sizeof(ev))
- return -EIO;
+ if (b->fd < 0)
+ return -EINVAL;
- if (ev.type == EV_KEY && ev.value > 0) {
-
- switch (ev.code) {
-
- case KEY_POWER:
- case KEY_POWER2:
- log_info("Power key pressed.");
- return button_power_off(b, b->manager->handle_power_key);
-
- case KEY_SLEEP:
- case KEY_SUSPEND:
- log_info("Sleep key pressed.");
- return button_suspend(b, b->manager->handle_sleep_key);
-
- }
- } else if (ev.type == EV_SW && ev.value > 0) {
+ if (ioctl(b->fd, EVIOCGSW(sizeof(switches)), switches) < 0)
+ return -errno;
- switch (ev.code) {
+ b->lid_closed = (switches[SW_LID/8] >> (SW_LID % 8)) & 1;
+ b->docked = (switches[SW_DOCK/8] >> (SW_DOCK % 8)) & 1;
- case SW_LID:
- log_info("Lid closed.");
- return button_suspend(b, b->manager->handle_lid_switch);
- }
- }
+ if (b->lid_closed)
+ button_install_check_event_source(b);
return 0;
}
-
-static const char* const handle_button_table[_HANDLE_BUTTON_MAX] = {
- [HANDLE_OFF] = "off",
- [HANDLE_NO_SESSION] = "no-session",
- [HANDLE_TTY_SESSION] = "tty-session",
- [HANDLE_ANY_SESSION] = "any-session",
- [HANDLE_ALWAYS] = "always"
-};
-DEFINE_STRING_TABLE_LOOKUP(handle_button, HandleButton);
-DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_button, handle_button, HandleButton, "Failed to parse handle button setting");
~ianmdlvl / elogind.git / blobdiff