Piotr Caban : mshtml: Limit number of tasks processed in process_timer.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a6fbf560e9d05256a0b2ba5b5c17cc65fb51e00a
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=a6fbf560e9d05256a0b2ba5b5c17cc65fb51e00a

Author: Piotr Caban <piotr at codeweavers.com>
Date:   Fri Apr 26 15:47:36 2013 +0200

mshtml: Limit number of tasks processed in process_timer.

---

 dlls/mshtml/task.c |   20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/dlls/mshtml/task.c b/dlls/mshtml/task.c
index bb8b4e0..f9f12d5 100644
--- a/dlls/mshtml/task.c
+++ b/dlls/mshtml/task.c
@@ -255,17 +255,29 @@ static LRESULT process_timer(void)
     thread_data_t *thread_data;
     IDispatch *disp;
     DWORD tc;
-    task_timer_t *timer;
+    task_timer_t *timer=NULL, *last_timer;
 
     TRACE("\n");
 
     thread_data = get_thread_data(FALSE);
     assert(thread_data != NULL);
 
-    while(!list_empty(&thread_data->timer_list)) {
-        timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
+    if(list_empty(&thread_data->timer_list)) {
+        KillTimer(thread_data->thread_hwnd, TIMER_ID);
+        return 0;
+    }
 
+    last_timer = LIST_ENTRY(list_tail(&thread_data->timer_list), task_timer_t, entry);
+    do {
         tc = GetTickCount();
+        if(timer == last_timer) {
+            timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
+            SetTimer(thread_data->thread_hwnd, TIMER_ID, timer->time>tc ? timer->time-tc : 0, NULL);
+            return 0;
+        }
+
+        timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
+
         if(timer->time > tc) {
             SetTimer(thread_data->thread_hwnd, TIMER_ID, timer->time-tc, NULL);
             return 0;
@@ -284,7 +296,7 @@ static LRESULT process_timer(void)
         call_timer_disp(disp);
 
         IDispatch_Release(disp);
-    }
+    }while(!list_empty(&thread_data->timer_list));
 
     KillTimer(thread_data->thread_hwnd, TIMER_ID);
     return 0;