8000 [2.7] bpo-37025: AddRefActCtx() shouldn't be checked for failure by ZackerySpytz · Pull Request #16897 · python/cpython · GitHub
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[2.7] bpo-37025: AddRefA 8000 ctCtx() shouldn't be checked for failure #16897

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Merged
merged 1 commit into from
Oct 23, 2019
Merged

[2.7] bpo-37025: AddRefActCtx() shouldn't be checked for failure #16897

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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Windows/2019-10-04-03-46-36.bpo-37025.tLheEe.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
``AddRefActCtx()`` was needlessly being checked for failure in
``PC/dl_nt.c``.
15 changes: 10 additions & 5 deletions PC/dl_nt.c
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Original file line number Diff line number Diff line change
Expand Up @@ -33,8 +33,8 @@ const char *PyWin_DLLVersionString = dllVersionBuffer;
typedef BOOL (WINAPI * PFN_GETCURRENTACTCTX)(HANDLE *);
typedef BOOL (WINAPI * PFN_ACTIVATEACTCTX)(HANDLE, ULONG_PTR *);
typedef BOOL (WINAPI * PFN_DEACTIVATEACTCTX)(DWORD, ULONG_PTR);
typedef BOOL (WINAPI * PFN_ADDREFACTCTX)(HANDLE);
typedef BOOL (WINAPI * PFN_RELEASEACTCTX)(HANDLE);
typedef void (WINAPI * PFN_ADDREFACTCTX)(HANDLE);
typedef void (WINAPI * PFN_RELEASEACTCTX)(HANDLE);

// locals and function pointers for this activation context magic.
static HANDLE PyWin_DLLhActivationContext = NULL; // one day it might be public
Expand Down Expand Up @@ -90,9 +90,14 @@ BOOL WINAPI DllMain (HANDLE hInst,
// and capture our activation context for use when loading extensions.
_LoadActCtxPointers();
if (pfnGetCurrentActCtx && pfnAddRefActCtx)
if ((*pfnGetCurrentActCtx)(&PyWin_DLLhActivationContext))
if (!(*pfnAddRefActCtx)(PyWin_DLLhActivationContext))
OutputDebugString("Python failed to load the default activation context\n");
if ((*pfnGetCurrentActCtx)(&PyWin_DLLhActivationContext)) {
(*pfnAddRefActCtx)(PyWin_DLLhActivationContext);
}
else {
OutputDebugString("Python failed to load the default "
"activation context\n");
return FALSE;
}
break;

case DLL_PROCESS_DETACH:
Expand Down
0