cpython/Include/internal/pycore_fileutils.h

276 lines
7.1 KiB
C

#ifndef Py_INTERNAL_FILEUTILS_H
#define Py_INTERNAL_FILEUTILS_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_BUILD_CORE
# error "Py_BUILD_CORE must be defined to include this header"
#endif
#include <locale.h> /* struct lconv */
typedef enum {
_Py_ERROR_UNKNOWN=0,
_Py_ERROR_STRICT,
_Py_ERROR_SURROGATEESCAPE,
_Py_ERROR_REPLACE,
_Py_ERROR_IGNORE,
_Py_ERROR_BACKSLASHREPLACE,
_Py_ERROR_SURROGATEPASS,
_Py_ERROR_XMLCHARREFREPLACE,
_Py_ERROR_OTHER
} _Py_error_handler;
PyAPI_FUNC(_Py_error_handler) _Py_GetErrorHandler(const char *errors);
PyAPI_FUNC(int) _Py_DecodeLocaleEx(
const char *arg,
wchar_t **wstr,
size_t *wlen,
const char **reason,
int current_locale,
_Py_error_handler errors);
PyAPI_FUNC(int) _Py_EncodeLocaleEx(
const wchar_t *text,
char **str,
size_t *error_pos,
const char **reason,
int current_locale,
_Py_error_handler errors);
PyAPI_FUNC(char*) _Py_EncodeLocaleRaw(
const wchar_t *text,
size_t *error_pos);
PyAPI_FUNC(PyObject *) _Py_device_encoding(int);
#if defined(MS_WINDOWS) || defined(__APPLE__)
/* On Windows, the count parameter of read() is an int (bpo-9015, bpo-9611).
On macOS 10.13, read() and write() with more than INT_MAX bytes
fail with EINVAL (bpo-24658). */
# define _PY_READ_MAX INT_MAX
# define _PY_WRITE_MAX INT_MAX
#else
/* write() should truncate the input to PY_SSIZE_T_MAX bytes,
but it's safer to do it ourself to have a portable behaviour */
# define _PY_READ_MAX PY_SSIZE_T_MAX
# define _PY_WRITE_MAX PY_SSIZE_T_MAX
#endif
#ifdef MS_WINDOWS
struct _Py_stat_struct {
unsigned long st_dev;
uint64_t st_ino;
unsigned short st_mode;
int st_nlink;
int st_uid;
int st_gid;
unsigned long st_rdev;
__int64 st_size;
time_t st_atime;
int st_atime_nsec;
time_t st_mtime;
int st_mtime_nsec;
time_t st_ctime;
int st_ctime_nsec;
unsigned long st_file_attributes;
unsigned long st_reparse_tag;
};
#else
# define _Py_stat_struct stat
#endif
PyAPI_FUNC(int) _Py_fstat(
int fd,
struct _Py_stat_struct *status);
PyAPI_FUNC(int) _Py_fstat_noraise(
int fd,
struct _Py_stat_struct *status);
PyAPI_FUNC(int) _Py_stat(
PyObject *path,
struct stat *status);
PyAPI_FUNC(int) _Py_open(
const char *pathname,
int flags);
PyAPI_FUNC(int) _Py_open_noraise(
const char *pathname,
int flags);
PyAPI_FUNC(FILE *) _Py_wfopen(
const wchar_t *path,
const wchar_t *mode);
PyAPI_FUNC(Py_ssize_t) _Py_read(
int fd,
void *buf,
size_t count);
PyAPI_FUNC(Py_ssize_t) _Py_write(
int fd,
const void *buf,
size_t count);
PyAPI_FUNC(Py_ssize_t) _Py_write_noraise(
int fd,
const void *buf,
size_t count);
#ifdef HAVE_READLINK
PyAPI_FUNC(int) _Py_wreadlink(
const wchar_t *path,
wchar_t *buf,
/* Number of characters of 'buf' buffer
including the trailing NUL character */
size_t buflen);
#endif
#ifdef HAVE_REALPATH
PyAPI_FUNC(wchar_t*) _Py_wrealpath(
const wchar_t *path,
wchar_t *resolved_path,
/* Number of characters of 'resolved_path' buffer
including the trailing NUL character */
size_t resolved_path_len);
#endif
PyAPI_FUNC(wchar_t*) _Py_wgetcwd(
wchar_t *buf,
/* Number of characters of 'buf' buffer
including the trailing NUL character */
size_t buflen);
PyAPI_FUNC(int) _Py_get_inheritable(int fd);
PyAPI_FUNC(int) _Py_set_inheritable(int fd, int inheritable,
int *atomic_flag_works);
PyAPI_FUNC(int) _Py_set_inheritable_async_safe(int fd, int inheritable,
int *atomic_flag_works);
PyAPI_FUNC(int) _Py_dup(int fd);
#ifndef MS_WINDOWS
PyAPI_FUNC(int) _Py_get_blocking(int fd);
PyAPI_FUNC(int) _Py_set_blocking(int fd, int blocking);
#else /* MS_WINDOWS */
PyAPI_FUNC(void*) _Py_get_osfhandle_noraise(int fd);
PyAPI_FUNC(void*) _Py_get_osfhandle(int fd);
PyAPI_FUNC(int) _Py_open_osfhandle_noraise(void *handle, int flags);
PyAPI_FUNC(int) _Py_open_osfhandle(void *handle, int flags);
#endif /* MS_WINDOWS */
// This is used after getting NULL back from Py_DecodeLocale().
#define DECODE_LOCALE_ERR(NAME, LEN) \
((LEN) == (size_t)-2) \
? _PyStatus_ERR("cannot decode " NAME) \
: _PyStatus_NO_MEMORY()
PyAPI_DATA(int) _Py_HasFileSystemDefaultEncodeErrors;
PyAPI_FUNC(int) _Py_DecodeUTF8Ex(
const char *arg,
Py_ssize_t arglen,
wchar_t **wstr,
size_t *wlen,
const char **reason,
_Py_error_handler errors);
PyAPI_FUNC(int) _Py_EncodeUTF8Ex(
const wchar_t *text,
char **str,
size_t *error_pos,
const char **reason,
int raw_malloc,
_Py_error_handler errors);
PyAPI_FUNC(wchar_t*) _Py_DecodeUTF8_surrogateescape(
const char *arg,
Py_ssize_t arglen,
size_t *wlen);
extern int
_Py_wstat(const wchar_t *, struct stat *);
PyAPI_FUNC(int) _Py_GetForceASCII(void);
/* Reset "force ASCII" mode (if it was initialized).
This function should be called when Python changes the LC_CTYPE locale,
so the "force ASCII" mode can be detected again on the new locale
encoding. */
PyAPI_FUNC(void) _Py_ResetForceASCII(void);
PyAPI_FUNC(int) _Py_GetLocaleconvNumeric(
struct lconv *lc,
PyObject **decimal_point,
PyObject **thousands_sep);
PyAPI_FUNC(void) _Py_closerange(int first, int last);
PyAPI_FUNC(wchar_t*) _Py_GetLocaleEncoding(void);
PyAPI_FUNC(PyObject*) _Py_GetLocaleEncodingObject(void);
#ifdef HAVE_NON_UNICODE_WCHAR_T_REPRESENTATION
extern int _Py_LocaleUsesNonUnicodeWchar(void);
extern wchar_t* _Py_DecodeNonUnicodeWchar(
const wchar_t* native,
Py_ssize_t size);
extern int _Py_EncodeNonUnicodeWchar_InPlace(
wchar_t* unicode,
Py_ssize_t size);
#endif
extern int _Py_isabs(const wchar_t *path);
extern int _Py_abspath(const wchar_t *path, wchar_t **abspath_p);
#ifdef MS_WINDOWS
extern int _PyOS_getfullpathname(const wchar_t *path, wchar_t **abspath_p);
#endif
extern wchar_t * _Py_join_relfile(const wchar_t *dirname,
const wchar_t *relfile);
extern int _Py_add_relfile(wchar_t *dirname,
const wchar_t *relfile,
size_t bufsize);
extern size_t _Py_find_basename(const wchar_t *filename);
PyAPI_FUNC(wchar_t *) _Py_normpath(wchar_t *path, Py_ssize_t size);
// Macros to protect CRT calls against instant termination when passed an
// invalid parameter (bpo-23524). IPH stands for Invalid Parameter Handler.
// Usage:
//
// _Py_BEGIN_SUPPRESS_IPH
// ...
// _Py_END_SUPPRESS_IPH
#if defined _MSC_VER && _MSC_VER >= 1900
# include <stdlib.h> // _set_thread_local_invalid_parameter_handler()
extern _invalid_parameter_handler _Py_silent_invalid_parameter_handler;
# define _Py_BEGIN_SUPPRESS_IPH \
{ _invalid_parameter_handler _Py_old_handler = \
_set_thread_local_invalid_parameter_handler(_Py_silent_invalid_parameter_handler);
# define _Py_END_SUPPRESS_IPH \
_set_thread_local_invalid_parameter_handler(_Py_old_handler); }
#else
# define _Py_BEGIN_SUPPRESS_IPH
# define _Py_END_SUPPRESS_IPH
#endif /* _MSC_VER >= 1900 */
#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_FILEUTILS_H */