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terminal: no need to check for EAGAIN - we don't use non-blocking

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Daniel Eklöf 2019-11-01 20:27:45 +01:00
parent dac1ba18c8
commit 2286bcf23d
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GPG key ID: 5BBD4992C116573F
1 changed files with 10 additions and 18 deletions
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28
terminal.c
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@ -40,9 +40,6 @@ fdm_ptmx(struct fdm *fdm, int fd, int events, void *data)
ssize_t count = read(term->ptmx, buf, sizeof(buf));
if (count < 0) {
if (errno == EAGAIN)
return true;
LOG_ERRNO("failed to read from pseudo terminal");
return false;
}
@ -116,9 +113,6 @@ fdm_flash(struct fdm *fdm, int fd, int events, void *data)
term->flash.fd, &expiration_count, sizeof(expiration_count));
if (ret < 0) {
if (errno == EAGAIN)
return true;
LOG_ERRNO("failed to read flash timer");
return false;
}
@ -144,9 +138,6 @@ fdm_blink(struct fdm *fdm, int fd, int events, void *data)
term->blink.fd, &expiration_count, sizeof(expiration_count));
if (ret < 0) {
if (errno == EAGAIN)
return true;
LOG_ERRNO("failed to read blink timer");
return false;
}
@ -192,17 +183,18 @@ fdm_delayed_render(struct fdm *fdm, int fd, int events, void *data)
if (fd == term->delayed_render_timer.upper_fd)
ret2 = read(term->delayed_render_timer.upper_fd, &unused, sizeof(unused));
if ((ret1 < 0 || ret2 < 0) && errno != EAGAIN)
if ((ret1 < 0 || ret2 < 0)) {
LOG_ERRNO("failed to read timeout timer");
else if (ret1 > 0 || ret2 > 0) {
render_refresh(term);
return false;
}
/* Reset timers */
term->delayed_render_timer.is_armed = false;
timerfd_settime(term->delayed_render_timer.lower_fd, 0, &(struct itimerspec){.it_value = {0}}, NULL);
timerfd_settime(term->delayed_render_timer.upper_fd, 0, &(struct itimerspec){.it_value = {0}}, NULL);
} else
assert(false);
render_refresh(term);
/* Reset timers */
struct itimerspec reset = {{0}};
timerfd_settime(term->delayed_render_timer.lower_fd, 0, &reset, NULL);
timerfd_settime(term->delayed_render_timer.upper_fd, 0, &reset, NULL);
term->delayed_render_timer.is_armed = false;
return true;
}