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// This file is part of the CircuitPython project: https://circuitpython.org

//

// SPDX-FileCopyrightText: Copyright (c) 2020 Scott Shawcroft for Adafruit Industries

//

// SPDX-License-Identifier: MIT

#include <stdint.h>

#include "py/objproperty.h"

#include "py/runtime.h"

#include "py/runtime0.h"

#include "shared-bindings/memorymonitor/AllocationAlarm.h"

#include "shared-bindings/util.h"

//| class AllocationAlarm:

//| def __init__(self, *, minimum_block_count: int = 1) -> None:

//| """Throw an exception when an allocation of ``minimum_block_count`` or more blocks

//| occurs while active.

//|

//| Track allocations::

//|

//| import memorymonitor

//|

//| aa = memorymonitor.AllocationAlarm(minimum_block_count=2)

//| x = 2

//| # Should not allocate any blocks.

//| with aa:

//| x = 5

//|

//| # Should throw an exception when allocating storage for the 20 bytes.

//| with aa:

//| x = bytearray(20)

//|

//| """

//| ...

//|

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) {

enum { ARG_minimum_block_count };

static const mp_arg_t allowed_args[] = {

{ MP_QSTR_minimum_block_count, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },

};

mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];

mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);

mp_int_t minimum_block_count =

mp_arg_validate_int_min(args[ARG_minimum_block_count].u_int, 1, MP_QSTR_minimum_block_count);

memorymonitor_allocationalarm_obj_t *self =

mp_obj_malloc(memorymonitor_allocationalarm_obj_t, &memorymonitor_allocationalarm_type);

common_hal_memorymonitor_allocationalarm_construct(self, minimum_block_count);

return MP_OBJ_FROM_PTR(self);

}

//| def ignore(self, count: int) -> AllocationAlarm:

//| """Sets the number of applicable allocations to ignore before raising the exception.

//| Automatically set back to zero at context exit.

//|

//| Use it within a ``with`` block::

//|

//| # Will not alarm because the bytearray allocation will be ignored.

//| with aa.ignore(2):

//| x = bytearray(20)

//| """

//| ...

//|

static mp_obj_t memorymonitor_allocationalarm_obj_ignore(mp_obj_t self_in, mp_obj_t count_obj) {

mp_int_t count = mp_obj_get_int(count_obj);

mp_arg_validate_int_min(count, 0, MP_QSTR_count);

common_hal_memorymonitor_allocationalarm_set_ignore(self_in, count);

return self_in;

}

MP_DEFINE_CONST_FUN_OBJ_2(memorymonitor_allocationalarm_ignore_obj, memorymonitor_allocationalarm_obj_ignore);

//| def __enter__(self) -> AllocationAlarm:

//| """Enables the alarm."""

//| ...

//|

static mp_obj_t memorymonitor_allocationalarm_obj___enter__(mp_obj_t self_in) {

common_hal_memorymonitor_allocationalarm_resume(self_in);

return self_in;

}

MP_DEFINE_CONST_FUN_OBJ_1(memorymonitor_allocationalarm___enter___obj, memorymonitor_allocationalarm_obj___enter__);

//| def __exit__(self) -> None:

//| """Automatically disables the allocation alarm when exiting a context. See

//| :ref:`lifetime-and-contextmanagers` for more info."""

//| ...

//|

//|

static mp_obj_t memorymonitor_allocationalarm_obj___exit__(size_t n_args, const mp_obj_t *args) {

(void)n_args;

common_hal_memorymonitor_allocationalarm_set_ignore(args[0], 0);

common_hal_memorymonitor_allocationalarm_pause(args[0]);

return mp_const_none;

}

static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(memorymonitor_allocationalarm___exit___obj, 4, 4, memorymonitor_allocationalarm_obj___exit__);

static const mp_rom_map_elem_t memorymonitor_allocationalarm_locals_dict_table[] = {

// Methods

{ MP_ROM_QSTR(MP_QSTR_ignore), MP_ROM_PTR(&memorymonitor_allocationalarm_ignore_obj) },

{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&memorymonitor_allocationalarm___enter___obj) },

{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&memorymonitor_allocationalarm___exit___obj) },

};

static MP_DEFINE_CONST_DICT(memorymonitor_allocationalarm_locals_dict, memorymonitor_allocationalarm_locals_dict_table);

MP_DEFINE_CONST_OBJ_TYPE(

memorymonitor_allocationalarm_type,

MP_QSTR_AllocationAlarm,

MP_TYPE_FLAG_NONE,

make_new, memorymonitor_allocationalarm_make_new,

locals_dict, &memorymonitor_allocationalarm_locals_dict

);