Paul Gofman : winhttp: Keep task in queue until completion.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5d2f2797e32f84993e898c18cd422e2a0514ba3d
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=5d2f2797e32f84993e898c18cd422e2a0514ba3d

Author: Paul Gofman <pgofman at codeweavers.com>
Date:   Mon Jun  6 21:49:07 2022 -0500

winhttp: Keep task in queue until completion.

Signed-off-by: Paul Gofman <pgofman at codeweavers.com>

---

 dlls/winhttp/request.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/dlls/winhttp/request.c b/dlls/winhttp/request.c
index fe703c19109..9abe4f45598 100644
--- a/dlls/winhttp/request.c
+++ b/dlls/winhttp/request.c
@@ -135,15 +135,16 @@ void stop_queue( struct queue *queue )
     TRACE("stopped %p\n", queue);
 }
 
-static struct task_header *get_next_task( struct queue *queue )
+static struct task_header *get_next_task( struct queue *queue, struct task_header *prev_task )
 {
     struct list *entry;
 
     AcquireSRWLockExclusive( &queue->lock );
     assert( queue->callback_running );
-    if ((entry = list_head( &queue->queued_tasks )))
-        list_remove( entry );
-    else
+    if (prev_task)
+        list_remove( &prev_task->entry );
+
+    if (!(entry = list_head( &queue->queued_tasks )))
         queue->callback_running = FALSE;
     ReleaseSRWLockExclusive( &queue->lock );
     if (!entry) return NULL;
@@ -157,12 +158,12 @@ static void CALLBACK task_callback( TP_CALLBACK_INSTANCE *instance, void *ctx )
 
     TRACE( "instance %p.\n", instance );
 
-    task = get_next_task( queue );
+    task = get_next_task( queue, NULL );
     while (task)
     {
         task->callback( task );
         /* Queue object may be freed by release_object() unless there is another task referencing it. */
-        next_task = get_next_task( queue );
+        next_task = get_next_task( queue, task );
         release_object( task->obj );
         free( task );
         task = next_task;