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concrt140: Use atomic write for releasing threadsafe_queue spin lock.

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This fixes data race in ARM/ARM64 platforms, and prevents potential
memory access reordering by the compiler.
This commit is contained in:
Jinoh Kang 2022-09-18 23:31:19 +09:00 committed by Alexandre Julliard
parent d1e23696df
commit 94512ecc12
1 changed files with 2 additions and 2 deletions
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4
dlls/concrt140/details.c
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@ -225,7 +225,7 @@ static void threadsafe_queue_push(threadsafe_queue *queue, size_t id,
queue->tail = p; queue->tail = p;
if(!queue->head) if(!queue->head)
queue->head = p; queue->head = p;
queue->lock = 0; WriteRelease(&queue->lock, 0);
} }
else else
{ {
@ -275,7 +275,7 @@ static BOOL threadsafe_queue_pop(threadsafe_queue *queue, size_t id,
queue->head = p->_Next; queue->head = p->_Next;
if(!queue->head) if(!queue->head)
queue->tail = NULL; queue->tail = NULL;
queue->lock = 0; WriteRelease(&queue->lock, 0);
/* TODO: Add exception handling */ /* TODO: Add exception handling */
call__Concurrent_queue_base_v4__Deallocate_page(parent, p); call__Concurrent_queue_base_v4__Deallocate_page(parent, p);