circuitpython/shared-bindings/atexit/__init__.c

97 lines
4.0 KiB
C

/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 microDev
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "shared-module/atexit/__init__.h"
//| """Atexit Module
//|
//| This module defines functions to register and unregister cleanup functions.
//| Functions thus registered are automatically executed upon normal vm termination.
//|
//| These functions are run in the reverse order in which they were registered;
//| if you register ``A``, ``B``, and ``C``, they will be run in the order ``C``, ``B``, ``A``.
//|
//| |see_cpython_module| :mod:`cpython:atexit`.
//| """
//| ...
//|
//| def register(
//| func: Callable[..., Any], *args: Optional[Any], **kwargs: Optional[Any]
//| ) -> Callable[..., Any]:
//| """Register func as a function to be executed at termination.
//|
//| Any optional arguments that are to be passed to func must be passed as arguments to `register()`.
//| It is possible to register the same function and arguments more than once.
//|
//| At normal program termination (for instance, if `sys.exit()` is called or the vm execution completes),
//| all functions registered are called in last in, first out order.
//|
//| If an exception is raised during execution of the exit handler,
//| a traceback is printed (unless `SystemExit` is raised) and the execution stops.
//|
//| This function returns func, which makes it possible to use it as a decorator.
//|
//| """
//| ...
//|
STATIC mp_obj_t atexit_register(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
shared_module_atexit_register(pos_args[0], (n_args - 1), ((n_args > 1) ? &pos_args[1] : NULL), kw_args);
return pos_args[0];
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(atexit_register_obj, 1, atexit_register);
//| def unregister(func: Callable[..., Any]) -> None:
//| """Remove func from the list of functions to be run at termination.
//|
//| `unregister()` silently does nothing if func was not previously registered. If func has been registered more than once,
//| every occurrence of that function in the atexit call stack will be removed.
//|
//| """
//| ...
//|
STATIC mp_obj_t atexit_unregister(const mp_obj_t self_in) {
shared_module_atexit_unregister(&self_in);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(atexit_unregister_obj, atexit_unregister);
STATIC const mp_rom_map_elem_t atexit_module_globals_table[] = {
// module name
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_atexit) },
// module functions
{ MP_ROM_QSTR(MP_QSTR_register), MP_ROM_PTR(&atexit_register_obj) },
{ MP_ROM_QSTR(MP_QSTR_unregister), MP_ROM_PTR(&atexit_unregister_obj) },
};
STATIC MP_DEFINE_CONST_DICT(atexit_module_globals, atexit_module_globals_table);
const mp_obj_module_t atexit_module = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t *)&atexit_module_globals,
};
MP_REGISTER_MODULE(MP_QSTR_atexit, atexit_module);