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DIX/getevents: Document GetMaximumEventsNum() a little better 

Note that the number returned by GMEN can _never_ change, and be a little more
explicit about the figure for repeats.
This commit is contained in:
Daniel Stone 2007-11-06 21:36:13 +00:00
parent 66fe554a59
commit e717409bae
1 changed files with 3 additions and 1 deletions
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4
dix/getevents.c
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@ -207,11 +207,13 @@ updateMotionHistory(DeviceIntPtr pDev, CARD32 ms, int first_valuator,
* *
* Should be used in DIX as: * Should be used in DIX as:
* xEvent *events = xcalloc(sizeof(xEvent), GetMaximumEventsNum()); * xEvent *events = xcalloc(sizeof(xEvent), GetMaximumEventsNum());
*
* This MUST be absolutely constant, from init until exit.
*/ */
_X_EXPORT int _X_EXPORT int
GetMaximumEventsNum(void) { GetMaximumEventsNum(void) {
/* Two base events -- core and device, plus valuator events. Multiply /* Two base events -- core and device, plus valuator events. Multiply
* by two if we're doing key repeats. */ * by two if we're doing non-XKB key repeats. */
int ret = 2 + MAX_VALUATOR_EVENTS; int ret = 2 + MAX_VALUATOR_EVENTS;
#ifdef XKB #ifdef XKB