andreacavalli/xserver-multidpi
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

include: document _XkbErrCode2 macros

Browse Source 
Why sending the number of the (implementation-dependent) error statement to
the client is a good idea is a bit beyond me, but at least document it so we
can all share the despair.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
This commit is contained in:
Peter Hutterer 2012-06-21 11:25:24 +10:00
parent 7100118c8d
commit 191b630656
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/xkbsrv.h
View File

@ -301,6 +301,11 @@ extern _X_EXPORT const char *XkbBinDirectory;
extern _X_EXPORT CARD32 xkbDebugFlags;
#define _XkbLibError(c,l,d) /* Epoch fail */
/* "a" is a "unique" numeric identifier that just defines which error
* code statement it is. _XkbErrCode2(4, foo) means "this is the 4th error
* statement in this function". lovely.
*/
#define _XkbErrCode2(a,b) ((XID)((((unsigned int)(a))<<24)|((b)&0xffffff)))
#define _XkbErrCode3(a,b,c) _XkbErrCode2(a,(((unsigned int)(b))<<16)|(c))
#define _XkbErrCode4(a,b,c,d) _XkbErrCode3(a,b,((((unsigned int)(c))<<8)|(d)))