[PATCH 1/3] xfree86: add VT owner interface

[Dave Airlie]

This is just a simple interface to avoid accessing x86Screens[0]
directly.

Signed-off-by: Dave Airlie <airlied at gmail.com>
---
 hw/xfree86/common/xf86.h       | 1 +
 hw/xfree86/common/xf86Events.c | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/hw/xfree86/common/xf86.h b/hw/xfree86/common/xf86.h
index 1a20026..eada01c 100644
--- a/hw/xfree86/common/xf86.h
+++ b/hw/xfree86/common/xf86.h
@@ -238,6 +238,7 @@ extern _X_EXPORT void xf86InterceptSigIll(void (*sigillhandler) (void));
 extern _X_EXPORT Bool xf86EnableVTSwitch(Bool new);
 extern _X_EXPORT void xf86ProcessActionEvent(ActionEvent action, void *arg);
 extern _X_EXPORT void xf86PrintBacktrace(void);
+extern _X_EXPORT Bool xf86VTOwner(void);
 
 /* xf86Helper.c */
 
diff --git a/hw/xfree86/common/xf86Events.c b/hw/xfree86/common/xf86Events.c
index 0552233..980f38d 100644
--- a/hw/xfree86/common/xf86Events.c
+++ b/hw/xfree86/common/xf86Events.c
@@ -768,3 +768,12 @@ DDXRingBell(int volume, int pitch, int duration)
 {
     xf86OSRingBell(volume, pitch, duration);
 }
+
+Bool
+xf86VTOwner(void)
+{
+    /* at system startup xf86Screens[0] won't be set - but we will own the VT */
+    if (xf86NumScreens == 0)
+	return TRUE;
+    return xf86Screens[0]->vtSema;
+}
-- 
1.8.2