Torge Matthies : msvcr100: Only wake task collection waiters when finished >= count.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: fc2fa4fb02983d1915e3b2713a2c40ee316955c5
URL:    https://gitlab.winehq.org/wine/wine/-/commit/fc2fa4fb02983d1915e3b2713a2c40e...

Author: Torge Matthies <tmatthies(a)codeweavers.com>
Date:   Tue Mar 28 17:24:38 2023 +0200

msvcr100: Only wake task collection waiters when finished >= count.

Signed-off-by: Torge Matthies <tmatthies(a)codeweavers.com>

---

 dlls/msvcrt/concurrency.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dlls/msvcrt/concurrency.c b/dlls/msvcrt/concurrency.c
index 01ba54308f0..a7447518302 100644
--- a/dlls/msvcrt/concurrency.c
+++ b/dlls/msvcrt/concurrency.c
@@ -2005,7 +2005,7 @@ static void execute_chore(_UnrealizedChore *chore,
 static void CALLBACK chore_wrapper_finally(BOOL normal, void *data)
 {
     _UnrealizedChore *chore = data;
-    LONG prev_finished, new_finished;
+    LONG count, prev_finished, new_finished;
     volatile LONG *ptr;
 
     TRACE("(%u %p)\n", normal, data);
@@ -2013,6 +2013,7 @@ static void CALLBACK chore_wrapper_finally(BOOL normal, void *data)
     if (!chore->task_collection)
         return;
     ptr = &chore->task_collection->finished;
+    count = chore->task_collection->count;
     chore->task_collection = NULL;
 
     do {
@@ -2023,7 +2024,8 @@ static void CALLBACK chore_wrapper_finally(BOOL normal, void *data)
             new_finished = prev_finished + 1;
     } while (InterlockedCompareExchange(ptr, new_finished, prev_finished)
              != prev_finished);
-    RtlWakeAddressSingle((LONG*)ptr);
+    if (new_finished >= count)
+        RtlWakeAddressSingle((LONG*)ptr);
 }
 
 static void __cdecl chore_wrapper(_UnrealizedChore *chore)