uterm: vt: put input devices asleep when inactive

There is no need to keep the input-devices around while another VT is
active.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>

diff --git a/src/uterm_vt.c b/src/uterm_vt.c
index 3e77870..ef6b441 100644 (file)
--- a/src/uterm_vt.c
+++ b/src/uterm_vt.c
@@ -159,6 +159,8 @@ static void real_sig_enter(struct uterm_vt *vt, struct signalfd_siginfo *info)
        if (vt->active)
                log_warning("activating VT %d even though it's already active",
                            vt->real_num);
+       else
+               uterm_input_wake_up(vt->input);
 
        log_debug("enter VT %d %p due to VT signal", vt->real_num, vt);
        ioctl(vt->real_fd, VT_RELDISP, VT_ACKACQ);
@@ -188,6 +190,8 @@ static void real_sig_leave(struct uterm_vt *vt, struct signalfd_siginfo *info)
        if (!vt->active)
                log_warning("deactivating VT %d even though it's not active",
                            vt->real_num);
+       else
+               uterm_input_sleep(vt->input);
 
        log_debug("leaving VT %d %p due to VT signal", vt->real_num, vt);
        vt_call(vt, UTERM_VT_DEACTIVATE);
@@ -699,10 +703,10 @@ int uterm_vt_allocate(struct uterm_vt_master *vtm,
                        goto err_input;
        } else {
                vt->mode = UTERM_VT_FAKE;
+               uterm_input_wake_up(vt->input);
        }
 
        uterm_input_ref(vt->input);
-       uterm_input_wake_up(vt->input);
        shl_dlist_link(&vtm->vts, &vt->list);
        *out = vt;
        return 0;
@@ -723,10 +727,12 @@ void uterm_vt_deallocate(struct uterm_vt *vt)
        if (!vt || !vt->vtm)
                return;
 
-       if (vt->mode == UTERM_VT_REAL)
+       if (vt->mode == UTERM_VT_REAL) {
                real_close(vt);
-       else if (vt->mode == UTERM_VT_FAKE)
+       } else if (vt->mode == UTERM_VT_FAKE) {
                vt_call(vt, UTERM_VT_DEACTIVATE);
+               uterm_input_sleep(vt->input);
+       }
 
        ev_eloop_unregister_signal_cb(vt->vtm->eloop, SIGUSR2, vt_sigusr2, vt);
        ev_eloop_unregister_signal_cb(vt->vtm->eloop, SIGUSR1, vt_sigusr1, vt);