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render: don’t create/destroy the title update timer each time

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Create it once when instantiating the terminal. Add a boolean to track
whether the timer is running or not.
This commit is contained in:
Daniel Eklöf 2021-06-18 15:53:47 +02:00
parent 535c82d628
commit 07b455e882
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GPG key ID: 5BBD4992C116573F
3 changed files with 45 additions and 37 deletions
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32
render.c
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@ -3501,26 +3501,10 @@ fdm_hook_refresh_pending_terminals(struct fdm *fdm, void *data)
}
}
static bool
fdm_title_update(struct fdm *fdm, int fd, int events, void *data)
{
struct terminal *term = data;
fdm_del(fdm, fd);
term->render.title.timer_fd = -1;
render_update_title(term);
struct timeval now;
if (gettimeofday(&now, NULL) == 0)
term->render.title.last_update = now;
return true;
}
void
render_refresh_title(struct terminal *term)
{
if (term->render.title.timer_fd >= 0)
if (term->render.title.is_armed)
return;
struct timeval now;
@ -3531,23 +3515,11 @@ render_refresh_title(struct terminal *term)
timersub(&now, &term->render.title.last_update, &diff);
if (diff.tv_sec == 0 && diff.tv_usec < 8333) {
int fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC | TFD_NONBLOCK);
if (fd < 0)
return;
const struct itimerspec timeout = {
.it_value = {.tv_nsec = 8333 * 1000 - diff.tv_usec * 1000},
};
if (timerfd_settime(fd, 0, &timeout, NULL) < 0) {
close(fd);
return;
}
if (!fdm_add(term->fdm, fd, EPOLLIN, &fdm_title_update, term))
close(fd);
else
term->render.title.timer_fd = fd;
timerfd_settime(term->render.title.timer_fd, 0, &timeout, NULL);
} else {
term->render.title.last_update = now;
render_update_title(term);