kopia lustrzana https://github.com/FreeSpacenav/spacenavd
167 wiersze
3.7 KiB
C
167 wiersze
3.7 KiB
C
/*
|
|
spacenavd - a free software replacement driver for 6dof space-mice.
|
|
Copyright (C) 2007-2019 John Tsiombikas <nuclear@member.fsf.org>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#if defined(__FreeBSD__) || defined(__APPLE__)
|
|
|
|
#include "config.h"
|
|
|
|
#ifdef USE_X11
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <sys/types.h>
|
|
#include <sys/event.h>
|
|
#include "proto_x11.h"
|
|
#include "spnavd.h"
|
|
|
|
static int kq = -1;
|
|
static int fd_x11 = -1;
|
|
static int fd_tmp = -1;
|
|
|
|
int xdet_start(void)
|
|
{
|
|
struct timespec ts = {0, 0};
|
|
struct kevent kev;
|
|
|
|
if((kq = kqueue()) == -1) {
|
|
logmsg(LOG_ERR, "failed to create kqueue: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if((fd_x11 = open("/tmp/.X11-unix", O_RDONLY)) == -1) {
|
|
if((fd_tmp = open("/tmp", O_RDONLY)) == -1) {
|
|
logmsg(LOG_ERR, "failed to open /tmp: %s\n", strerror(errno));
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
EV_SET(&kev, fd_x11 != -1 ? fd_x11 : fd_tmp, EVFILT_VNODE, EV_ADD | EV_CLEAR, NOTE_WRITE, 0, 0);
|
|
|
|
if(kevent(kq, &kev, 1, 0, 0, &ts) == -1) {
|
|
logmsg(LOG_ERR, "failed to register kqueue event notification: %s\n", strerror(errno));
|
|
goto err;
|
|
}
|
|
|
|
if(verbose) {
|
|
logmsg(LOG_INFO, "waiting for the X socket file to appear\n");
|
|
}
|
|
return kq;
|
|
|
|
err:
|
|
if(fd_x11 != -1)
|
|
close(fd_x11);
|
|
if(fd_tmp != -1)
|
|
close(fd_tmp);
|
|
if(kq != -1)
|
|
close(kq);
|
|
kq = -1;
|
|
return -1;
|
|
}
|
|
|
|
void xdet_stop(void)
|
|
{
|
|
if(kq != -1) {
|
|
if(verbose) {
|
|
logmsg(LOG_INFO, "stopping X watch\n");
|
|
}
|
|
|
|
if(fd_x11 != -1)
|
|
close(fd_x11);
|
|
if(fd_tmp != -1)
|
|
close(fd_tmp);
|
|
|
|
close(kq);
|
|
kq = fd_x11 = fd_tmp = -1;
|
|
}
|
|
}
|
|
|
|
int xdet_get_fd(void)
|
|
{
|
|
return kq;
|
|
}
|
|
|
|
int handle_xdet_events(fd_set *rset)
|
|
{
|
|
struct kevent kev;
|
|
struct timespec ts = {0, 0};
|
|
|
|
if(kq == -1 || !FD_ISSET(kq, rset)) {
|
|
return -1;
|
|
}
|
|
|
|
if(kevent(kq, 0, 0, &kev, 1, &ts) <= 0) {
|
|
return -1;
|
|
}
|
|
|
|
if(kev.ident == fd_tmp) {
|
|
assert(fd_x11 == -1);
|
|
|
|
/* try to open the socket dir, see if that was what was added to /tmp */
|
|
if((fd_x11 = open("/tmp/.X11-unix", O_RDONLY)) == -1) {
|
|
return -1;
|
|
}
|
|
|
|
EV_SET(&kev, fd_x11, EVFILT_VNODE, EV_ADD | EV_CLEAR, NOTE_WRITE, 0, 0);
|
|
|
|
if(kevent(kq, &kev, 1, 0, 0, &ts) == -1) {
|
|
logmsg(LOG_ERR, "failed to register kqueue event notification for /tmp/.X11-unix: %s\n", strerror(errno));
|
|
close(fd_x11);
|
|
fd_x11 = -1;
|
|
return -1;
|
|
}
|
|
|
|
/* successfully added the notification for /tmp/.X11-unix, now we
|
|
* don't need the /tmp notification anymore. by closing the fd it's
|
|
* automatically removed from the kqueue.
|
|
*/
|
|
close(fd_tmp);
|
|
fd_tmp = -1;
|
|
|
|
} else if(kev.ident == fd_x11) {
|
|
int i;
|
|
|
|
if(verbose) {
|
|
logmsg(LOG_INFO, "found X socket, will now attempt to connect to the X server\n");
|
|
}
|
|
|
|
/* poll for approximately 30 seconds (well a bit more than that) */
|
|
for(i=0; i<30; i++) {
|
|
sleep(1);
|
|
if(init_x11() != -1) {
|
|
/* done, we don't need the X socket notification any more */
|
|
close(fd_x11);
|
|
fd_x11 = -1;
|
|
|
|
return 0; /* success */
|
|
}
|
|
}
|
|
|
|
logmsg(LOG_ERR, "found X socket yet failed to connect\n");
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
#endif /* USE_X11 */
|
|
|
|
#else
|
|
int spacenavd_xdetect_freebsd_shut_up_empty_source_warning;
|
|
#endif /* __FreeBSD__ */
|