Add ddxInputThread call from os layer into ddx layer

Allows ddx's to run additional code as necessary to set up the
input thread.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
(cherry picked from commit 4ad21c3247)

hw/dmx/dmxinit.c

@@ -838,6 +838,15 @@ ddxGiveUp(enum ExitCode error)
     AbortDDX(error);
 }
 
+#if INPUTTHREAD
+/** This function is called in Xserver/os/inputthread.c when starting
+    the input thread. */
+void
+ddxInputThreadInit(void)
+{
+}
+#endif
+
 /** This function is called in Xserver/os/osinit.c from \a OsInit(). */
 void
 OsVendorInit(void)

hw/kdrive/ephyr/ephyrinit.c

@@ -100,6 +100,15 @@ CloseInput(void)
     KdCloseInput();
 }
 
+#if INPUTTHREAD
+/** This function is called in Xserver/os/inputthread.c when starting
+    the input thread. */
+void
+ddxInputThreadInit(void)
+{
+}
+#endif
+
 #ifdef DDXBEFORERESET
 void
 ddxBeforeReset(void)

hw/vfb/InitOutput.c

@@ -232,6 +232,15 @@ ddxBeforeReset(void)
 }
 #endif
 
+#if INPUTTHREAD
+/** This function is called in Xserver/os/inputthread.c when starting
+    the input thread. */
+void
+ddxInputThreadInit(void)
+{
+}
+#endif
+
 void
 ddxUseMsg(void)
 {

hw/xfree86/common/xf86Init.c

@@ -1444,3 +1444,12 @@ ddxBeforeReset(void)
 {
 }
 #endif
+
+#if INPUTTHREAD
+/** This function is called in Xserver/os/inputthread.c when starting
+    the input thread. */
+void
+ddxInputThreadInit(void)
+{
+}
+#endif

hw/xnest/Init.c

@@ -169,3 +169,12 @@ ddxBeforeReset(void)
     return;
 }
 #endif
+
+#if INPUTTHREAD
+/** This function is called in Xserver/os/inputthread.c when starting
+    the input thread. */
+void
+ddxInputThreadInit(void)
+{
+}
+#endif

hw/xwayland/xwayland.c

@@ -72,6 +72,15 @@ ddxBeforeReset(void)
 {
     return;
 }
+#endif
+
+#if INPUTTHREAD
+/** This function is called in Xserver/os/inputthread.c when starting
+    the input thread. */
+void
+ddxInputThreadInit(void)
+{
+}
 #endif
 
  _X_NORETURN

hw/xwin/InitOutput.c

@@ -151,6 +151,15 @@ ddxBeforeReset(void)
 }
 #endif
 
+#if INPUTTHREAD
+/** This function is called in Xserver/os/inputthread.c when starting
+    the input thread. */
+void
+ddxInputThreadInit(void)
+{
+}
+#endif
+
 int
 main(int argc, char *argv[], char *envp[])
 {

include/os.h

@@ -556,6 +556,8 @@ extern _X_EXPORT void
 AbortDDX(enum ExitCode error);
 extern _X_EXPORT void
 ddxGiveUp(enum ExitCode error);
+extern _X_EXPORT void
+ddxInputThreadInit(void);
 extern _X_EXPORT int
 TimeSinceLastInputEvent(void);
 

os/inputthread.c

@@ -318,6 +318,8 @@ InputThreadDoWork(void *arg)
     sigfillset(&set);
     pthread_sigmask(SIG_BLOCK, &set, NULL);
 
+    ddxInputThreadInit();
+
     inputThreadInfo->running = TRUE;
 
 #if defined(HAVE_PTHREAD_SETNAME_NP_WITH_TID)