Support XINPUT ABI version 23 (threaded input)

Use input_lock/input_unlock calls instead of SIGIO functions

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

src/emuMB.c

@@ -184,10 +184,13 @@ int
 EvdevMBEmuTimer(InputInfoPtr pInfo)
 {
     EvdevPtr pEvdev = pInfo->private;
-    int	sigstate;
     int id;
 
-    sigstate = xf86BlockSIGIO ();
+#if HAVE_THREADED_INPUT
+    input_lock();
+#else
+    int sigstate = xf86BlockSIGIO();
+#endif
 
     pEvdev->emulateMB.pending = FALSE;
     if ((id = stateTab[pEvdev->emulateMB.state][4][0]) != 0) {
@@ -200,7 +203,11 @@ EvdevMBEmuTimer(InputInfoPtr pInfo)
                     pEvdev->emulateMB.state);
     }
 
-    xf86UnblockSIGIO (sigstate);
+#if HAVE_THREADED_INPUT
+    input_unlock();
+#else
+    xf86UnblockSIGIO(sigstate);
+#endif
     return 0;
 }
 

src/emuThird.c

@@ -89,12 +89,19 @@ Evdev3BEmuTimer(OsTimerPtr timer, CARD32 time, pointer arg)
     InputInfoPtr      pInfo    = (InputInfoPtr)arg;
     EvdevPtr          pEvdev   = pInfo->private;
     struct emulate3B *emu3B    = &pEvdev->emulate3B;
-    int               sigstate = 0;
 
-    sigstate = xf86BlockSIGIO ();
+#if HAVE_THREADED_INPUT
+    input_lock();
+#else
+    int sigstate = xf86BlockSIGIO();
+#endif
     emu3B->state = EM3B_EMULATING;
     Evdev3BEmuPostButtonEvent(pInfo, emu3B->button, BUTTON_PRESS);
-    xf86UnblockSIGIO (sigstate);
+#if HAVE_THREADED_INPUT
+    input_unlock();
+#else
+    xf86UnblockSIGIO(sigstate);
+#endif
     return 0;
 }
 

src/evdev.h

@@ -67,6 +67,10 @@
 #define LogMessageVerbSigSafe xf86MsgVerb
 #endif
 
+#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 23
+#define HAVE_THREADED_INPUT	1
+#endif
+
 #define EVDEV_MAXBUTTONS 32
 #define EVDEV_MAXQUEUE 32