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Load GetNamedPipeHandleStateW from Kernel32.dll on the windows games api family #134049

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Merged
merged 1 commit into from
May 15, 2025
Merged

Load GetNamedPipeHandleStateW from Kernel32.dll on the windows games api family #134049

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37 changes: 37 additions & 0 deletions Python/fileutils.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2784,6 +2784,43 @@ _Py_set_blocking(int fd, int blocking)
return -1;
}
#else /* MS_WINDOWS */

// The Windows Games API family doesn't expose GetNamedPipeHandleStateW so attempt
// to load it directly from the Kernel32.dll
#if !defined(MS_WINDOWS_APP) && !defined(MS_WINDOWS_SYSTEM)
BOOL
GetNamedPipeHandleStateW(HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances, LPDWORD lpMaxCollectionCount,
LPDWORD lpCollectDataTimeout, LPWSTR lpUserName, DWORD nMaxUserNameSize)
{
static int initialized = 0;
typedef BOOL(__stdcall* PGetNamedPipeHandleStateW) (
HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances, LPDWORD lpMaxCollectionCount,
LPDWORD lpCollectDataTimeout, LPWSTR lpUserName, DWORD nMaxUserNameSize);
static PGetNamedPipeHandleStateW _GetNamedPipeHandleStateW;

if (initialized == 0) {
HMODULE api = LoadLibraryExW(L"Kernel32.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32);
if (api) {
_GetNamedPipeHandleStateW = (PGetNamedPipeHandleStateW)GetProcAddress(
api, "GetNamedPipeHandleStateW");
}
else {
_GetNamedPipeHandleStateW = NULL;
}
initialized = 1;
}

if (!_GetNamedPipeHandleStateW) {
SetLastError(E_NOINTERFACE);
return FALSE;
}

return _GetNamedPipeHandleStateW(
hNamedPipe, lpState, lpCurInstances, lpMaxCollectionCount, lpCollectDataTimeout, lpUserName, nMaxUserNameSize
);
}
#endif /* !MS_WINDOWS_APP && !MS_WINDOWS_SYSTEM */

int
_Py_get_blocking(int fd)
{
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