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98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
#ifndef Py_INTERNAL_FILEUTILS_WINDOWS_H
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#define Py_INTERNAL_FILEUTILS_WINDOWS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "Py_BUILD_CORE must be defined to include this header"
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#endif
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#ifdef MS_WINDOWS
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#if !defined(NTDDI_WIN10_NI) || !(NTDDI_VERSION >= NTDDI_WIN10_NI)
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typedef struct _FILE_STAT_BASIC_INFORMATION {
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LARGE_INTEGER FileId;
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LARGE_INTEGER CreationTime;
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LARGE_INTEGER LastAccessTime;
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LARGE_INTEGER LastWriteTime;
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LARGE_INTEGER ChangeTime;
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LARGE_INTEGER AllocationSize;
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LARGE_INTEGER EndOfFile;
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ULONG FileAttributes;
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ULONG ReparseTag;
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ULONG NumberOfLinks;
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ULONG DeviceType;
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ULONG DeviceCharacteristics;
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ULONG Reserved;
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LARGE_INTEGER VolumeSerialNumber;
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FILE_ID_128 FileId128;
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} FILE_STAT_BASIC_INFORMATION;
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typedef enum _FILE_INFO_BY_NAME_CLASS {
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FileStatByNameInfo,
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FileStatLxByNameInfo,
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FileCaseSensitiveByNameInfo,
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FileStatBasicByNameInfo,
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MaximumFileInfoByNameClass
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} FILE_INFO_BY_NAME_CLASS;
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#endif
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typedef BOOL (WINAPI *PGetFileInformationByName)(
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PCWSTR FileName,
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FILE_INFO_BY_NAME_CLASS FileInformationClass,
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PVOID FileInfoBuffer,
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ULONG FileInfoBufferSize
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);
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static inline BOOL _Py_GetFileInformationByName(
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PCWSTR FileName,
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FILE_INFO_BY_NAME_CLASS FileInformationClass,
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PVOID FileInfoBuffer,
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ULONG FileInfoBufferSize
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) {
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static PGetFileInformationByName GetFileInformationByName = NULL;
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static int GetFileInformationByName_init = -1;
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if (GetFileInformationByName_init < 0) {
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HMODULE hMod = LoadLibraryW(L"api-ms-win-core-file-l2-1-4");
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GetFileInformationByName_init = 0;
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if (hMod) {
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GetFileInformationByName = (PGetFileInformationByName)GetProcAddress(
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hMod, "GetFileInformationByName");
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if (GetFileInformationByName) {
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GetFileInformationByName_init = 1;
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} else {
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FreeLibrary(hMod);
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}
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}
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}
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if (GetFileInformationByName_init <= 0) {
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SetLastError(ERROR_NOT_SUPPORTED);
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return FALSE;
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}
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return GetFileInformationByName(FileName, FileInformationClass, FileInfoBuffer, FileInfoBufferSize);
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}
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static inline BOOL _Py_GetFileInformationByName_ErrorIsTrustworthy(int error)
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{
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switch(error) {
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case ERROR_FILE_NOT_FOUND:
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case ERROR_PATH_NOT_FOUND:
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case ERROR_NOT_READY:
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case ERROR_BAD_NET_NAME:
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case ERROR_BAD_NETPATH:
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case ERROR_BAD_PATHNAME:
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case ERROR_INVALID_NAME:
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case ERROR_FILENAME_EXCED_RANGE:
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return TRUE;
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case ERROR_NOT_SUPPORTED:
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return FALSE;
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}
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return FALSE;
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}
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#endif
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#endif
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