bool evdevDevice::IsValid() const
{
int current_fd = libevdev_get_fd(m_dev);
if (current_fd == -1)
return false;
libevdev* device;
if (libevdev_new_from_fd(current_fd, &device) != 0)
{
close(current_fd);
return false;
}
libevdev_free(device);
return true;
}
static int
mainloop(struct libevdev *dev, struct measurements *m) {
struct pollfd fds[2];
sigset_t mask;
fds[0].fd = libevdev_get_fd(dev);
fds[0].events = POLLIN;
sigemptyset(&mask);
sigaddset(&mask, SIGINT);
fds[1].fd = signalfd(-1, &mask, SFD_NONBLOCK);
fds[1].events = POLLIN;
sigprocmask(SIG_BLOCK, &mask, NULL);
while (poll(fds, 2, -1)) {
struct input_event ev;
int rc;
if (fds[1].revents)
break;
do {
rc = libevdev_next_event(dev, LIBEVDEV_READ_FLAG_NORMAL, &ev);
if (rc == LIBEVDEV_READ_STATUS_SYNC) {
fprintf(stderr, "Error: cannot keep up\n");
return 1;
} else if (rc != -EAGAIN && rc < 0) {
fprintf(stderr, "Error: %s\n", strerror(-rc));
return 1;
} else if (rc == LIBEVDEV_READ_STATUS_SUCCESS) {
handle_event(m, &ev);
}
} while (rc != -EAGAIN);
}
return 0;
}
int adhoc_get_fd(const struct adhoc *adhoc) {
return libevdev_get_fd(adhoc->dev);
}
