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List: wine-devel
Subject: [PATCH 4/4] strmbase: Swap the lock order in IPin::EndFlush().
From: Zebediah Figura <z.figura12 () gmail ! com>
Date: 2019-11-28 23:35:41
Message-ID: 20191128233541.432357-4-z.figura12 () gmail ! com
[Download RAW message or body]
This more closely resembles the threading model prescribed by the DirectX SDK
documentation. In particular, the page "Flushing Data" recommends that
IPin::BeginFlush() do the following steps in order:
1. take the filter lock
2. signal the streaming thread to complete
3. take the streaming lock, if necessary
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
---
dlls/strmbase/renderer.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/dlls/strmbase/renderer.c b/dlls/strmbase/renderer.c
index 0ef9c5b225..cacbb90e59 100644
--- a/dlls/strmbase/renderer.c
+++ b/dlls/strmbase/renderer.c
@@ -133,8 +133,8 @@ static HRESULT WINAPI BaseRenderer_InputPin_EndFlush(IPin * iface)
TRACE("iface %p.\n", iface);
- EnterCriticalSection(&pFilter->csRenderLock);
EnterCriticalSection(&pFilter->filter.csFilter);
+ EnterCriticalSection(&pFilter->csRenderLock);
pFilter->eos = FALSE;
hr = BaseInputPinImpl_EndFlush(iface);
if (SUCCEEDED(hr))
@@ -146,8 +146,8 @@ static HRESULT WINAPI BaseRenderer_InputPin_EndFlush(IPin * iface)
if (pFilter->pFuncsTable->pfnEndFlush)
hr = pFilter->pFuncsTable->pfnEndFlush(pFilter);
}
- LeaveCriticalSection(&pFilter->filter.csFilter);
LeaveCriticalSection(&pFilter->csRenderLock);
+ LeaveCriticalSection(&pFilter->filter.csFilter);
return hr;
}
--
2.24.0
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