mirror of
https://github.com/python/cpython.git
synced 2025-10-30 18:07:37 +00:00
f8290df63f
The module itself is a thin wrapper around calls to functions in `Python/codecs.c`, so that's where the meaningful changes happened: - Move codecs-related state that lives on `PyInterpreterState` to a struct declared in `pycore_codecs.h`. - In free-threaded builds, add a mutex to `codecs_state` to synchronize operations on `search_path`. Because `search_path_mutex` is used as a normal mutex and not a critical section, we must be extremely careful with operations called while holding it. - The codec registry is explicitly initialized as part of `_PyUnicode_InitEncodings` to simplify thread-safety.
86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
#ifndef Py_INTERNAL_CODECS_H
|
|
#define Py_INTERNAL_CODECS_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifndef Py_BUILD_CORE
|
|
# error "this header requires Py_BUILD_CORE define"
|
|
#endif
|
|
|
|
#include "pycore_lock.h" // PyMutex
|
|
|
|
/* Initialize codecs-related state for the given interpreter, including
|
|
registering the first codec search function. Must be called before any other
|
|
PyCodec-related functions, and while only one thread is active. */
|
|
extern PyStatus _PyCodec_InitRegistry(PyInterpreterState *interp);
|
|
|
|
/* Finalize codecs-related state for the given interpreter. No PyCodec-related
|
|
functions other than PyCodec_Unregister() may be called after this. */
|
|
extern void _PyCodec_Fini(PyInterpreterState *interp);
|
|
|
|
extern PyObject* _PyCodec_Lookup(const char *encoding);
|
|
|
|
/* Text codec specific encoding and decoding API.
|
|
|
|
Checks the encoding against a list of codecs which do not
|
|
implement a str<->bytes encoding before attempting the
|
|
operation.
|
|
|
|
Please note that these APIs are internal and should not
|
|
be used in Python C extensions.
|
|
|
|
XXX (ncoghlan): should we make these, or something like them, public
|
|
in Python 3.5+?
|
|
|
|
*/
|
|
extern PyObject* _PyCodec_LookupTextEncoding(
|
|
const char *encoding,
|
|
const char *alternate_command);
|
|
|
|
extern PyObject* _PyCodec_EncodeText(
|
|
PyObject *object,
|
|
const char *encoding,
|
|
const char *errors);
|
|
|
|
extern PyObject* _PyCodec_DecodeText(
|
|
PyObject *object,
|
|
const char *encoding,
|
|
const char *errors);
|
|
|
|
/* These two aren't actually text encoding specific, but _io.TextIOWrapper
|
|
* is the only current API consumer.
|
|
*/
|
|
extern PyObject* _PyCodecInfo_GetIncrementalDecoder(
|
|
PyObject *codec_info,
|
|
const char *errors);
|
|
|
|
extern PyObject* _PyCodecInfo_GetIncrementalEncoder(
|
|
PyObject *codec_info,
|
|
const char *errors);
|
|
|
|
// Per-interpreter state used by codecs.c.
|
|
struct codecs_state {
|
|
// A list of callable objects used to search for codecs.
|
|
PyObject *search_path;
|
|
|
|
// A dict mapping codec names to codecs returned from a callable in
|
|
// search_path.
|
|
PyObject *search_cache;
|
|
|
|
// A dict mapping error handling strategies to functions to implement them.
|
|
PyObject *error_registry;
|
|
|
|
#ifdef Py_GIL_DISABLED
|
|
// Used to safely delete a specific item from search_path.
|
|
PyMutex search_path_mutex;
|
|
#endif
|
|
|
|
// Whether or not the rest of the state is initialized.
|
|
int initialized;
|
|
};
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py_INTERNAL_CODECS_H */
|