Solaris: Avoid switching to inactive VT's
Fix for OpenSolaris bug 6876992: "[vconsole] Ctrl+Alt+F12 switchs to blank console screen with hotkeys property turned-off" http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6876992 Xorg needs to do sanity test for the VT it is commanded to switch to. If the VT is not opened by any process, discard the switching request. The changes also contain the fix for some flaws discovered when getting the new gdm to run. Signed-off-by: Aaron Zang <Aaron.Zang@Sun.COM> Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
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@ -202,8 +202,16 @@ xf86ProcessActionEvent(ActionEvent action, void *arg)
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vtno--;
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#endif
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#if defined(sun)
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if (vtno == xf86Info.vtno)
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if (vtno == xf86Info.vtno) {
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break;
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} else {
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struct vt_stat state;
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if (ioctl(xf86Info.consoleFd, VT_GETSTATE, &state) < 0)
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break;
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if ((state.v_state & (1 << vtno)) == 0)
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break;
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}
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xf86Info.vtRequestsPending = TRUE;
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xf86Info.vtPendingNum = vtno;
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@ -38,17 +38,27 @@
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* Handle the VT-switching interface for Solaris/OpenSolaris
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*/
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void
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xf86VTRequest(int sig)
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{
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if (xf86Info.vtPendingNum != -1)
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{
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ioctl(xf86Info.consoleFd, VT_RELDISP, 1);
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xf86Info.vtPendingNum = -1;
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static int xf86VTPruneDoor = 0;
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void
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xf86VTRelease(int sig)
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{
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if (xf86Info.vtPendingNum == -1)
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{
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xf86VTPruneDoor = 1;
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xf86Info.vtRequestsPending = TRUE;
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return;
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}
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ioctl(xf86Info.consoleFd, VT_RELDISP, 1);
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xf86Info.vtPendingNum = -1;
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return;
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}
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void
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xf86VTAcquire(int sig)
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{
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xf86Info.vtRequestsPending = TRUE;
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return;
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}
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@ -68,6 +78,12 @@ xf86VTSwitchAway(void)
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xf86Info.vtRequestsPending = FALSE;
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if (xf86VTPruneDoor) {
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xf86VTPruneDoor = 0;
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ioctl(xf86Info.consoleFd, VT_RELDISP, 1);
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return (TRUE);
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}
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vt_door_arg.vt_ev = VT_EV_HOTKEYS;
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vt_door_arg.vt_num = xf86Info.vtPendingNum;
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door_arg.data_ptr = (char *)&vt_door_arg;
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@ -39,6 +39,8 @@ static Bool Protect0 = FALSE;
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static int VTnum = -1;
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static int xf86StartVT = -1;
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static int vtEnabled = 0;
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extern void xf86VTAcquire(int);
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extern void xf86VTRelease(int);
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#endif
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/* Device to open as xf86Info.consoleFd */
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@ -137,7 +139,8 @@ xf86OpenConsole(void)
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else
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{
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if ((ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0) ||
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(xf86Info.vtno == -1)) {
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(xf86Info.vtno == -1))
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{
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FatalError("xf86OpenConsole: Cannot find a free VT\n");
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}
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}
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@ -146,7 +149,8 @@ xf86OpenConsole(void)
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snprintf(consoleDev, PATH_MAX, "/dev/vt/%d", xf86Info.vtno);
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}
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if (fd != -1) {
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if (fd != -1)
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{
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close(fd);
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}
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@ -178,11 +182,12 @@ xf86OpenConsole(void)
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if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0)
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FatalError("xf86OpenConsole: VT_GETMODE failed\n");
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OsSignal(SIGUSR1, xf86VTRequest);
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OsSignal(SIGUSR1, xf86VTAcquire);
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OsSignal(SIGUSR2, xf86VTRelease);
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VT.mode = VT_PROCESS;
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VT.relsig = SIGUSR1;
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VT.acqsig = SIGUSR1;
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VT.relsig = SIGUSR2;
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if (ioctl(xf86Info.consoleFd, VT_SETMODE, &VT) < 0)
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FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed\n");
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@ -204,7 +209,8 @@ xf86OpenConsole(void)
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else /* serverGeneration != 1 */
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{
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#ifdef HAS_USL_VTS
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if (vtEnabled) {
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if (vtEnabled)
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{
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/*
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* Now re-get the VT
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*/
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@ -285,7 +291,8 @@ xf86CloseConsole(void)
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#endif
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#ifdef HAS_USL_VTS
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if (vtEnabled == 1) {
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if (vtEnabled)
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{
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if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) != -1)
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{
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VT.mode = VT_AUTO; /* Set default vt handling */
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