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authorPeter Hutterer <peter.hutterer@who-t.net>2011-10-14 14:51:06 +1000
committerPeter Hutterer <peter.hutterer@who-t.net>2011-11-08 07:24:07 +1000
commitc9c99058b9d98789c0b2d7e78a23443c2b57a047 (patch)
tree5ccc2cada02d1b130e7fcf01ec56fb9ae32f8b10
parentba8a7a19165e30d14bc165f43f67c19b6a115585 (diff)
include: Add GetReqSized() for request buffers of specific size
Some XI2 requests change in size over different versions and libXi would need to hack around GetReq and GetReqExtra. Add a new GetReqSized so the library can explicitly specify the size of the request in 4-byte units. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jamey Sharp <jamey@minilop.net>
-rw-r--r--include/X11/Xlibint.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/X11/Xlibint.h b/include/X11/Xlibint.h
index 01087b8..9d75d06 100644
--- a/include/X11/Xlibint.h
+++ b/include/X11/Xlibint.h
@@ -433,6 +433,18 @@ extern LockInfoPtr _Xglobal_lock;
*/
extern void *_XGetRequest(Display *dpy, CARD8 type, size_t len);
+/* GetReqSized is the same as GetReq but allows the caller to specify the
+ * size in bytes. 'sz' must be a multiple of 4! */
+
+#if !defined(UNIXCPP) || defined(ANSICPP)
+#define GetReqSized(name, sz, req) \
+ req = (x##name##Req *) _XGetRequest(dpy, X_##name, sz)
+#else
+#define GetReqSized(name, sz, req) \
+ req = (x/**/name/**/Req *) _XGetRequest(dpy, X_/**/name, sz)
+#endif
+
+
/*
* GetReq - Get the next available X request packet in the buffer and
* return it.