def _getfinalpathname_llimpl(path):
if not win32traits.check_GetFinalPathNameByHandle():
raise LLNotImplemented("GetFinalPathNameByHandle not available on "
"this platform")
hFile = win32traits.CreateFile(path, 0, 0, None,
win32traits.OPEN_EXISTING,
win32traits.FILE_FLAG_BACKUP_SEMANTICS,
rwin32.NULL_HANDLE)
if hFile == rwin32.INVALID_HANDLE_VALUE:
raise rwin32.lastSavedWindowsError("CreateFile")
VOLUME_NAME_DOS = rffi.cast(rwin32.DWORD, win32traits.VOLUME_NAME_DOS)
try:
usize = win32traits.GetFinalPathNameByHandle(
hFile,
lltype.nullptr(traits.CCHARP.TO),
rffi.cast(rwin32.DWORD, 0),
VOLUME_NAME_DOS)
if usize == 0:
raise rwin32.lastSavedWindowsError("GetFinalPathNameByHandle")
size = rffi.cast(lltype.Signed, usize)
with rffi.scoped_alloc_unicodebuffer(size + 1) as buf:
result = win32traits.GetFinalPathNameByHandle(
hFile,
buf.raw,
usize,
VOLUME_NAME_DOS)
if result == 0:
raise rwin32.lastSavedWindowsError("GetFinalPathNameByHandle")
return buf.str(rffi.cast(lltype.Signed, result))
finally:
rwin32.CloseHandle(hFile)
def _decode_helper(cp, s, flags, encoding, errors, errorhandler, final, start,
end, res):
if end > len(s):
end = len(s)
piece = s[start:end]
with rffi.scoped_nonmovingbuffer(piece) as dataptr:
# first get the size of the result
outsize = MultiByteToWideChar(cp, flags, dataptr, len(piece),
lltype.nullptr(rffi.CWCHARP.TO), 0)
if outsize == 0:
r, pos = _decode_cp_error(s, errorhandler, encoding, errors, final,
start, end)
res.append(r)
return pos, check_utf8(r, True)
with rffi.scoped_alloc_unicodebuffer(outsize) as buf:
# do the conversion
if MultiByteToWideChar(cp, flags, dataptr, len(piece), buf.raw,
outsize) == 0:
r, pos = _decode_cp_error(s, errorhandler, encoding, errors,
final, start, end)
res.append(r)
return pos, check_utf8(r, True)
buf_as_str = buf.str(outsize)
assert buf_as_str is not None
with rffi.scoped_nonmoving_unicodebuffer(buf_as_str) as dataptr:
conv = _unibuf_to_utf8(dataptr, outsize)
res.append(conv)
return end, codepoints_in_utf8(conv)
def ExpandEnvironmentStrings(source):
with rffi.scoped_unicode2wcharp(source) as src_buf:
size = _ExpandEnvironmentStringsW(src_buf,
lltype.nullptr(rffi.CWCHARP.TO), 0)
if size == 0:
raise rwin32.lastSavedWindowsError("ExpandEnvironmentStrings")
size = intmask(size)
with rffi.scoped_alloc_unicodebuffer(size) as dest_buf:
if _ExpandEnvironmentStringsW(src_buf, dest_buf.raw, size) == 0:
raise rwin32.lastSavedWindowsError("ExpandEnvironmentStrings")
return dest_buf.str(size - 1) # remove trailing \0
def ExpandEnvironmentStrings(source):
with rffi.scoped_unicode2wcharp(source) as src_buf:
size = _ExpandEnvironmentStringsW(src_buf,
lltype.nullptr(rffi.CWCHARP.TO), 0)
if size == 0:
raise rwin32.lastSavedWindowsError("ExpandEnvironmentStrings")
size = intmask(size)
with rffi.scoped_alloc_unicodebuffer(size) as dest_buf:
if _ExpandEnvironmentStringsW(src_buf,
dest_buf.raw, size) == 0:
raise rwin32.lastSavedWindowsError("ExpandEnvironmentStrings")
return dest_buf.str(size - 1) # remove trailing \0
