133 lines
5.5 KiB
C
133 lines
5.5 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include "py/objproperty.h"
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#include "py/runtime.h"
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#include "py/runtime0.h"
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#include "shared-bindings/memorymonitor/AllocationAlarm.h"
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#include "shared-bindings/util.h"
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//| class AllocationAlarm:
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//| def __init__(self, *, minimum_block_count: int = 1) -> None:
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//| """Throw an exception when an allocation of ``minimum_block_count`` or more blocks
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//| occurs while active.
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//|
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//| Track allocations::
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//|
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//| import memorymonitor
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//|
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//| aa = memorymonitor.AllocationAlarm(minimum_block_count=2)
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//| x = 2
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//| # Should not allocate any blocks.
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//| with aa:
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//| x = 5
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//|
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//| # Should throw an exception when allocating storage for the 20 bytes.
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//| with aa:
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//| x = bytearray(20)
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//|
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//| """
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//| ...
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STATIC mp_obj_t memorymonitor_allocationalarm_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *all_args, mp_map_t *kw_args) {
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enum { ARG_minimum_block_count };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_minimum_block_count, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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mp_int_t minimum_block_count =
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mp_arg_validate_int_min(args[ARG_minimum_block_count].u_int, 1, MP_QSTR_minimum_block_count);
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memorymonitor_allocationalarm_obj_t *self =
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mp_obj_malloc(memorymonitor_allocationalarm_obj_t, &memorymonitor_allocationalarm_type);
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common_hal_memorymonitor_allocationalarm_construct(self, minimum_block_count);
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return MP_OBJ_FROM_PTR(self);
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}
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//| def ignore(self, count: int) -> AllocationAlarm:
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//| """Sets the number of applicable allocations to ignore before raising the exception.
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//| Automatically set back to zero at context exit.
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//|
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//| Use it within a ``with`` block::
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//|
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//| # Will not alarm because the bytearray allocation will be ignored.
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//| with aa.ignore(2):
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//| x = bytearray(20)
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//| """
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//| ...
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STATIC mp_obj_t memorymonitor_allocationalarm_obj_ignore(mp_obj_t self_in, mp_obj_t count_obj) {
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mp_int_t count = mp_obj_get_int(count_obj);
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mp_arg_validate_int_min(count, 0, MP_QSTR_count);
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common_hal_memorymonitor_allocationalarm_set_ignore(self_in, count);
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return self_in;
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}
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MP_DEFINE_CONST_FUN_OBJ_2(memorymonitor_allocationalarm_ignore_obj, memorymonitor_allocationalarm_obj_ignore);
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//| def __enter__(self) -> AllocationAlarm:
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//| """Enables the alarm."""
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//| ...
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STATIC mp_obj_t memorymonitor_allocationalarm_obj___enter__(mp_obj_t self_in) {
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common_hal_memorymonitor_allocationalarm_resume(self_in);
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return self_in;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(memorymonitor_allocationalarm___enter___obj, memorymonitor_allocationalarm_obj___enter__);
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//| def __exit__(self) -> None:
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//| """Automatically disables the allocation alarm when exiting a context. See
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//| :ref:`lifetime-and-contextmanagers` for more info."""
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//| ...
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//|
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STATIC mp_obj_t memorymonitor_allocationalarm_obj___exit__(size_t n_args, const mp_obj_t *args) {
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(void)n_args;
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common_hal_memorymonitor_allocationalarm_set_ignore(args[0], 0);
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common_hal_memorymonitor_allocationalarm_pause(args[0]);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(memorymonitor_allocationalarm___exit___obj, 4, 4, memorymonitor_allocationalarm_obj___exit__);
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STATIC const mp_rom_map_elem_t memorymonitor_allocationalarm_locals_dict_table[] = {
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// Methods
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{ MP_ROM_QSTR(MP_QSTR_ignore), MP_ROM_PTR(&memorymonitor_allocationalarm_ignore_obj) },
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{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&memorymonitor_allocationalarm___enter___obj) },
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{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&memorymonitor_allocationalarm___exit___obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(memorymonitor_allocationalarm_locals_dict, memorymonitor_allocationalarm_locals_dict_table);
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MP_DEFINE_CONST_OBJ_TYPE(
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memorymonitor_allocationalarm_type,
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MP_QSTR_AllocationAlarm,
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MP_TYPE_FLAG_NONE,
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make_new, memorymonitor_allocationalarm_make_new,
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locals_dict, &memorymonitor_allocationalarm_locals_dict
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);
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