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term: ptmx: cancel, and don't re-arm, delay timers when refresh has been disabled

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Daniel Eklöf 2020-01-12 12:23:29 +01:00
parent 7b27fa857f
commit 84f836c0c8
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GPG key ID: 5BBD4992C116573F
1 changed files with 39 additions and 27 deletions
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66
terminal.c
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@ -186,36 +186,48 @@ fdm_ptmx(struct fdm *fdm, int fd, int events, void *data)
* has any effect when the renderer is idle.
*/
if (term->window->frame_callback == NULL) {
/* First timeout - reset each time we receive input. */
#if PTMX_TIMING
struct timespec now;
clock_gettime(1, &now);
if (last.tv_sec > 0 || last.tv_nsec > 0) {
struct timeval diff;
struct timeval l = {last.tv_sec, last.tv_nsec / 1000};
struct timeval n = {now.tv_sec, now.tv_nsec / 1000};
timersub(&n, &l, &diff);
LOG_INFO("waited %lu µs for more input", diff.tv_usec);
}
last = now;
#endif
timerfd_settime(
term->delayed_render_timer.lower_fd, 0,
&(struct itimerspec){.it_value = {.tv_nsec = 500000}},
NULL);
/* Second timeout - only reset when we render. Set to one
* frame (assuming 60Hz) */
if (!term->delayed_render_timer.is_armed) {
if (term->render.refresh_prohibited) {
timerfd_settime(
term->delayed_render_timer.lower_fd, 0,
&(struct itimerspec){{0}}, NULL);
timerfd_settime(
term->delayed_render_timer.upper_fd, 0,
&(struct itimerspec){.it_value = {.tv_nsec = 16666666 / 2}},
&(struct itimerspec){{0}}, NULL);
term->render.refresh_needed = true;
}
else {
/* First timeout - reset each time we receive input. */
#if PTMX_TIMING
struct timespec now;
clock_gettime(1, &now);
if (last.tv_sec > 0 || last.tv_nsec > 0) {
struct timeval diff;
struct timeval l = {last.tv_sec, last.tv_nsec / 1000};
struct timeval n = {now.tv_sec, now.tv_nsec / 1000};
timersub(&n, &l, &diff);
LOG_INFO("waited %lu µs for more input", diff.tv_usec);
}
last = now;
#endif
timerfd_settime(
term->delayed_render_timer.lower_fd, 0,
&(struct itimerspec){.it_value = {.tv_nsec = 500000}},
NULL);
term->delayed_render_timer.is_armed = true;
/* Second timeout - only reset when we render. Set to one
* frame (assuming 60Hz) */
if (!term->delayed_render_timer.is_armed) {
timerfd_settime(
term->delayed_render_timer.upper_fd, 0,
&(struct itimerspec){.it_value = {.tv_nsec = 16666666 / 2}},
NULL);
term->delayed_render_timer.is_armed = true;
}
}
} else
term->render.pending = true;