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comparison src/X_supp.c @ 350:892f4efe2e48

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Prevent applications from hanging by massive mouse motion events. - When massive motion events are send by mouse, the application will busy for processing events. - The motion events are aggregated to prevent applicatin from hanging for massive mouse motion events.
author Thinker K.F. Li <thinker@branda.to>
date Sun, 08 Mar 2009 23:08:51 +0800
parents b391722bf20e
children 16116d84bc5e
comparison
equal deleted inserted replaced
349:700954870cee 350:892f4efe2e48
175 /*! \brief Dispatch all X events in the queue. 175 /*! \brief Dispatch all X events in the queue.
176 */ 176 */
177 static void handle_x_event(X_MB_runtime_t *rt) { 177 static void handle_x_event(X_MB_runtime_t *rt) {
178 Display *display = rt->display; 178 Display *display = rt->display;
179 redraw_man_t *rdman = rt->rdman; 179 redraw_man_t *rdman = rt->rdman;
180 XEvent evt; 180 XEvent evt, peek_evt;
181 XMotionEvent *mevt; 181 XMotionEvent *mevt;
182 XButtonEvent *bevt; 182 XButtonEvent *bevt;
183 XExposeEvent *eevt; 183 XExposeEvent *eevt;
184 XKeyEvent *xkey; 184 XKeyEvent *xkey;
185 co_aix x, y, w, h; 185 co_aix x, y, w, h;
229 x, y, EVT_MOUSE_BUT_RELEASE, 229 x, y, EVT_MOUSE_BUT_RELEASE,
230 state, button); 230 state, button);
231 break; 231 break;
232 232
233 case MotionNotify: 233 case MotionNotify:
234 while(XEventsQueued(display, QueuedAfterReading) > 0) {
235 r = XPeekEvent(display, &peek_evt);
236 if(r == -1)
237 break;
238 if(peek_evt.type != MotionNotify)
239 break;
240 XNextEvent(display, &evt);
241 }
242 if(r == -1)
243 break;
244
234 mevt = (XMotionEvent *)&evt; 245 mevt = (XMotionEvent *)&evt;
235 x = mevt->x; 246 x = mevt->x;
236 y = mevt->y; 247 y = mevt->y;
237 state = get_button_state(mevt->state); 248 state = get_button_state(mevt->state);
238 249