diff options
Diffstat (limited to 'Python/fileutils.c')
| -rw-r--r-- | Python/fileutils.c | 89 |
1 files changed, 85 insertions, 4 deletions
diff --git a/Python/fileutils.c b/Python/fileutils.c index 93bee9ee007..4ac759c45a3 100644 --- a/Python/fileutils.c +++ b/Python/fileutils.c @@ -8,7 +8,11 @@ #ifdef MS_WINDOWS # include <malloc.h> # include <windows.h> -# include <pathcch.h> // PathCchCombineEx +# if defined(MS_WINDOWS_GAMES) && !defined(MS_WINDOWS_DESKTOP) +# define PATHCCH_ALLOW_LONG_PATHS 0x01 +# else +# include <pathcch.h> // PathCchCombineEx +# endif extern int winerror_to_errno(int); #endif @@ -77,7 +81,8 @@ _Py_device_encoding(int fd) if (!valid) Py_RETURN_NONE; -#if defined(MS_WINDOWS) +#ifdef MS_WINDOWS +#ifdef HAVE_WINDOWS_CONSOLE_IO UINT cp; if (fd == 0) cp = GetConsoleCP(); @@ -93,6 +98,9 @@ _Py_device_encoding(int fd) return PyUnicode_FromFormat("cp%u", (unsigned int)cp); #else + Py_RETURN_NONE; +#endif /* HAVE_WINDOWS_CONSOLE_IO */ +#else if (_PyRuntime.preconfig.utf8_mode) { _Py_DECLARE_STR(utf_8, "utf-8"); return Py_NewRef(&_Py_STR(utf_8)); @@ -1270,6 +1278,13 @@ _Py_stat(PyObject *path, struct stat *statbuf) #endif } +#ifdef MS_WINDOWS +// For some Windows API partitions, SetHandleInformation() is declared +// but none of the handle flags are defined. +#ifndef HANDLE_FLAG_INHERIT +#define HANDLE_FLAG_INHERIT 0x00000001 +#endif +#endif /* This function MUST be kept async-signal-safe on POSIX when raise=0. */ static int @@ -2096,6 +2111,72 @@ _Py_abspath(const wchar_t *path, wchar_t **abspath_p) #endif } +// The Windows Games API family implements the PathCch* APIs in the Xbox OS, +// but does not expose them yet. Load them dynamically until +// 1) they are officially exposed +// 2) we stop supporting older versions of the GDK which do not expose them +#if defined(MS_WINDOWS_GAMES) && !defined(MS_WINDOWS_DESKTOP) +HRESULT +PathCchSkipRoot(const wchar_t *path, const wchar_t **rootEnd) +{ + static int initialized = 0; + typedef HRESULT(__stdcall *PPathCchSkipRoot) (PCWSTR pszPath, + PCWSTR *ppszRootEnd); + static PPathCchSkipRoot _PathCchSkipRoot; + + if (initialized == 0) { + HMODULE pathapi = LoadLibraryExW(L"api-ms-win-core-path-l1-1-0.dll", NULL, + LOAD_LIBRARY_SEARCH_SYSTEM32); + if (pathapi) { + _PathCchSkipRoot = (PPathCchSkipRoot)GetProcAddress( + pathapi, "PathCchSkipRoot"); + } + else { + _PathCchSkipRoot = NULL; + } + initialized = 1; + } + + if (!_PathCchSkipRoot) { + return E_NOINTERFACE; + } + + return _PathCchSkipRoot(path, rootEnd); +} + +static HRESULT +PathCchCombineEx(wchar_t *buffer, size_t bufsize, const wchar_t *dirname, + const wchar_t *relfile, unsigned long flags) +{ + static int initialized = 0; + typedef HRESULT(__stdcall *PPathCchCombineEx) (PWSTR pszPathOut, + size_t cchPathOut, + PCWSTR pszPathIn, + PCWSTR pszMore, + unsigned long dwFlags); + static PPathCchCombineEx _PathCchCombineEx; + + if (initialized == 0) { + HMODULE pathapi = LoadLibraryExW(L"api-ms-win-core-path-l1-1-0.dll", NULL, + LOAD_LIBRARY_SEARCH_SYSTEM32); + if (pathapi) { + _PathCchCombineEx = (PPathCchCombineEx)GetProcAddress( + pathapi, "PathCchCombineEx"); + } + else { + _PathCchCombineEx = NULL; + } + initialized = 1; + } + + if (!_PathCchCombineEx) { + return E_NOINTERFACE; + } + + return _PathCchCombineEx(buffer, bufsize, dirname, relfile, flags); +} + +#endif /* defined(MS_WINDOWS_GAMES) && !defined(MS_WINDOWS_DESKTOP) */ // The caller must ensure "buffer" is big enough. static int @@ -2491,12 +2572,12 @@ _Py_get_blocking(int fd) success = GetNamedPipeHandleStateW(handle, &mode, NULL, NULL, NULL, NULL, 0); Py_END_ALLOW_THREADS - + if (!success) { PyErr_SetFromWindowsErr(0); return -1; } - + return !(mode & PIPE_NOWAIT); } |