mainnika
/
weston
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

clients: consolidate timer code part 1

Browse Source 
There are multiple copies for the timerfd handling code, and I need a
timer in one more app. Consolidate all the timerfd code into window.c to
reduce the duplication. Many of the copies were also flawed against the
race mentioned in toytimer_fire().

This patch handles clickdot and window.c's tooltip timer and cursor
timer.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Acked-by: Daniel Stone <daniels@collabora.com>
dev
Pekka Paalanen 7 years ago
parent 3f83937414
commit 3f5f3afa81
3 changed files with 135 additions and 78 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 36
      clients/clickdot.c
  2. 150
      clients/window.c
  3. 27
      clients/window.h

36
clients/clickdot.c
Unescape View File

@ -32,9 +32,8 @@
#include <cairo.h>
#include <math.h>
#include <assert.h>
#include <sys/timerfd.h>
#include <sys/epoll.h>
#include <unistd.h>
#include <time.h>
#include <linux/input.h>
#include <wayland-client.h>
@ -62,8 +61,7 @@ struct clickdot {
int reset;
struct input *cursor_timeout_input;
int cursor_timeout_fd;
struct task cursor_timeout_task;
struct toytimer cursor_timeout;
};
static void
@ -224,14 +222,7 @@ button_handler(struct widget *widget,
static void
cursor_timeout_reset(struct clickdot *clickdot)
{
const long cursor_timeout = 500;
struct itimerspec its;
its.it_interval.tv_sec = 0;
its.it_interval.tv_nsec = 0;
its.it_value.tv_sec = cursor_timeout / 1000;
its.it_value.tv_nsec = (cursor_timeout % 1000) * 1000 * 1000;
timerfd_settime(clickdot->cursor_timeout_fd, 0, &its, NULL);
toytimer_arm_once_usec(&clickdot->cursor_timeout, 500 * 1000);
}
static int
@ -271,15 +262,10 @@ leave_handler(struct widget *widget,
}
static void
cursor_timeout_func(struct task *task, uint32_t events)
cursor_timeout_func(struct toytimer *tt)
{
struct clickdot *clickdot =
container_of(task, struct clickdot, cursor_timeout_task);
uint64_t exp;
if (read(clickdot->cursor_timeout_fd, &exp, sizeof (uint64_t)) !=
sizeof(uint64_t))
abort();
container_of(tt, struct clickdot, cursor_timeout);
input_set_pointer_image(clickdot->cursor_timeout_input,
CURSOR_LEFT_PTR);
@ -317,12 +303,8 @@ clickdot_create(struct display *display)
clickdot->line.old_y = -1;
clickdot->reset = 0;
clickdot->cursor_timeout_fd =
timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
clickdot->cursor_timeout_task.run = cursor_timeout_func;
display_watch_fd(window_get_display(clickdot->window),
clickdot->cursor_timeout_fd,
EPOLLIN, &clickdot->cursor_timeout_task);
toytimer_init(&clickdot->cursor_timeout, CLOCK_MONOTONIC,
display, cursor_timeout_func);
return clickdot;
}
@ -330,9 +312,7 @@ clickdot_create(struct display *display)
static void
clickdot_destroy(struct clickdot *clickdot)
{
display_unwatch_fd(window_get_display(clickdot->window),
clickdot->cursor_timeout_fd);
close(clickdot->cursor_timeout_fd);
toytimer_fini(&clickdot->cursor_timeout);
if (clickdot->buffer)
cairo_surface_destroy(clickdot->buffer);
widget_destroy(clickdot->widget);

150
clients/window.c
Unescape View File

@ -349,9 +349,8 @@ struct input {
struct wl_callback *cursor_frame_cb;
uint32_t cursor_timer_start;
uint32_t cursor_anim_current;
int cursor_delay_fd;
struct toytimer cursor_timer;
bool cursor_timer_running;
struct task cursor_task;
struct wl_surface *pointer_surface;
uint32_t modifiers;
uint32_t pointer_enter_serial;
@ -440,8 +439,7 @@ struct tooltip {
struct widget *parent;
struct widget *widget;
char *entry;
struct task tooltip_task;
int tooltip_fd;
struct toytimer timer;
float x, y;
};
@ -2122,21 +2120,17 @@ widget_destroy_tooltip(struct widget *parent)
tooltip->widget = NULL;
}
close(tooltip->tooltip_fd);
toytimer_fini(&tooltip->timer);
free(tooltip->entry);
free(tooltip);
parent->tooltip = NULL;
}
static void
tooltip_func(struct task *task, uint32_t events)
tooltip_func(struct toytimer *tt)
{
struct tooltip *tooltip =
container_of(task, struct tooltip, tooltip_task);
uint64_t exp;
struct tooltip *tooltip = container_of(tt, struct tooltip, timer);
if (read(tooltip->tooltip_fd, &exp, sizeof (uint64_t)) != sizeof (uint64_t))
abort();
window_create_tooltip(tooltip);
}
@ -2144,16 +2138,7 @@ tooltip_func(struct task *task, uint32_t events)
static int
tooltip_timer_reset(struct tooltip *tooltip)
{
struct itimerspec its;
its.it_interval.tv_sec = 0;
its.it_interval.tv_nsec = 0;
its.it_value.tv_sec = TOOLTIP_TIMEOUT / 1000;
its.it_value.tv_nsec = (TOOLTIP_TIMEOUT % 1000) * 1000 * 1000;
if (timerfd_settime(tooltip->tooltip_fd, 0, &its, NULL) < 0) {
fprintf(stderr, "could not set timerfd\n: %m");
return -1;
}
toytimer_arm_once_usec(&tooltip->timer, TOOLTIP_TIMEOUT * 1000);
return 0;
}
@ -2186,15 +2171,8 @@ widget_set_tooltip(struct widget *parent, char *entry, float x, float y)
tooltip->x = x;
tooltip->y = y;
tooltip->entry = strdup(entry);
tooltip->tooltip_fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
if (tooltip->tooltip_fd < 0) {
fprintf(stderr, "could not create timerfd\n: %m");
return -1;
}
tooltip->tooltip_task.run = tooltip_func;
display_watch_fd(parent->window->display, tooltip->tooltip_fd,
EPOLLIN, &tooltip->tooltip_task);
toytimer_init(&tooltip->timer, CLOCK_MONOTONIC,
parent->window->display, tooltip_func);
tooltip_timer_reset(tooltip);
return 0;
@ -2685,19 +2663,12 @@ input_ungrab(struct input *input)
static void
cursor_delay_timer_reset(struct input *input, uint32_t duration)
{
struct itimerspec its;
if (!duration)
input->cursor_timer_running = false;
else
input->cursor_timer_running = true;
its.it_interval.tv_sec = 0;
its.it_interval.tv_nsec = 0;
its.it_value.tv_sec = duration / 1000;
its.it_value.tv_nsec = (duration % 1000) * 1000 * 1000;
if (timerfd_settime(input->cursor_delay_fd, 0, &its, NULL) < 0)
fprintf(stderr, "could not set cursor timerfd\n: %m");
toytimer_arm_once_usec(&input->cursor_timer, duration * 1000);
}
static void cancel_pointer_image_update(struct input *input)
@ -3888,20 +3859,16 @@ pointer_surface_frame_callback(void *data, struct wl_callback *callback,
}
static void
cursor_timer_func(struct task *task, uint32_t events)
cursor_timer_func(struct toytimer *tt)
{
struct input *input = container_of(task, struct input, cursor_task);
struct input *input = container_of(tt, struct input, cursor_timer);
struct timespec tp;
struct wl_cursor *cursor;
uint32_t time;
uint64_t exp;
if (!input->cursor_timer_running)
return;
if (read(input->cursor_delay_fd, &exp, sizeof (uint64_t)) != sizeof (uint64_t))
return;
cursor = input->display->cursors[input->current_cursor];
if (!cursor)
return;
@ -5876,12 +5843,9 @@ display_add_input(struct display *d, uint32_t id, int display_seat_version)
}
input->pointer_surface = wl_compositor_create_surface(d->compositor);
input->cursor_task.run = cursor_timer_func;
input->cursor_delay_fd = timerfd_create(CLOCK_MONOTONIC,
TFD_CLOEXEC | TFD_NONBLOCK);
display_watch_fd(d, input->cursor_delay_fd, EPOLLIN,
&input->cursor_task);
toytimer_init(&input->cursor_timer, CLOCK_MONOTONIC, d,
cursor_timer_func);
set_repeat_info(input, 40, 400);
input->repeat_timer_fd = timerfd_create(CLOCK_MONOTONIC,
@ -5932,7 +5896,7 @@ input_destroy(struct input *input)
wl_list_remove(&input->link);
wl_seat_destroy(input->seat);
close(input->repeat_timer_fd);
close(input->cursor_delay_fd);
toytimer_fini(&input->cursor_timer);
free(input);
}
@ -6562,3 +6526,89 @@ keysym_modifiers_get_mask(struct wl_array *modifiers_map,
return 1 << index;
}
static void
toytimer_fire(struct task *tsk, uint32_t events)
{
uint64_t e;
struct toytimer *tt;
tt = container_of(tsk, struct toytimer, tsk);
if (events != EPOLLIN)
fprintf(stderr, "unexpected timerfd events %x\n", events);
if (!(events & EPOLLIN))
return;
if (read(tt->fd, &e, sizeof e) != sizeof e) {
/* If we change the timer between the fd becoming
* readable and getting here, there'll be nothing to
* read and we get EAGAIN. */
if (errno != EAGAIN)
fprintf(stderr, "timer read failed: %m\n");
return;
}
tt->callback(tt);
}
void
toytimer_init(struct toytimer *tt, clockid_t clock, struct display *display,
toytimer_cb callback)
{
memset(tt, 0, sizeof *tt);
tt->fd = timerfd_create(clock, TFD_CLOEXEC | TFD_NONBLOCK);
if (tt->fd == -1) {
fprintf(stderr, "creating timer failed: %m\n");
abort();
}
tt->display = display;
tt->callback = callback;
tt->tsk.run = toytimer_fire;
display_watch_fd(display, tt->fd, EPOLLIN, &tt->tsk);
}
void
toytimer_fini(struct toytimer *tt)
{
display_unwatch_fd(tt->display, tt->fd);
close(tt->fd);
tt->fd = -1;
}
void
toytimer_arm(struct toytimer *tt, const struct itimerspec *its)
{
int ret;
ret = timerfd_settime(tt->fd, 0, its, NULL);
if (ret < 0) {
fprintf(stderr, "timer setup failed: %m\n");
abort();
}
}
#define USEC_PER_SEC 1000000
void
toytimer_arm_once_usec(struct toytimer *tt, uint32_t usec)
{
struct itimerspec its;
its.it_interval.tv_sec = 0;
its.it_interval.tv_nsec = 0;
its.it_value.tv_sec = usec / USEC_PER_SEC;
its.it_value.tv_nsec = (usec % USEC_PER_SEC) * 1000;
toytimer_arm(tt, &its);
}
void
toytimer_disarm(struct toytimer *tt)
{
struct itimerspec its = {};
toytimer_arm(tt, &its);
}

27
clients/window.h
Unescape View File

@ -27,6 +27,7 @@
#include "config.h"
#include <stdint.h>
#include <time.h>
#include <xkbcommon/xkbcommon.h>
#include <wayland-client.h>
#include <cairo.h>
@ -713,4 +714,30 @@ xkb_mod_mask_t
keysym_modifiers_get_mask(struct wl_array *modifiers_map,
const char *name);
struct toytimer;
typedef void (*toytimer_cb)(struct toytimer *);
struct toytimer {
struct display *display;
struct task tsk;
int fd;
toytimer_cb callback;
};
void
toytimer_init(struct toytimer *tt, clockid_t clock, struct display *display,
toytimer_cb callback);
void
toytimer_fini(struct toytimer *tt);
void
toytimer_arm(struct toytimer *tt, const struct itimerspec *its);
void
toytimer_arm_once_usec(struct toytimer *tt, uint32_t usec);
void
toytimer_disarm(struct toytimer *tt);
#endif

Write Preview
Loading…
Cancel
Save