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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
*
* 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 <stdint.h>
#include "py/objproperty.h"
#include "py/runtime.h"
#include "py/runtime0.h"
#include "shared-bindings/memorymonitor/AllocationSize.h"
#include "shared-bindings/util.h"
#include "supervisor/shared/translate.h"
//| class AllocationSize:
//|
//| def __init__(self) -> None:
//| """Tracks the number of allocations in power of two buckets.
//|
//| It will have 16 16-bit buckets to track allocation counts. It is total allocations
//| meaning frees are ignored. Reallocated memory is counted twice, at allocation and when
//| reallocated with the larger size.
//|
//| The buckets are measured in terms of blocks which is the finest granularity of the heap.
//| This means bucket 0 will count all allocations less than or equal to the number of bytes
//| per block, typically 16. Bucket 2 will be less than or equal to 4 blocks. See
//| `bytes_per_block` to convert blocks to bytes.
//|
//| Multiple AllocationSizes can be used to track different code boundaries.
//|
//| Track allocations::
//|
//| import memorymonitor
//|
//| mm = memorymonitor.AllocationSize()
//| with mm:
//| print("hello world" * 3)
//|
//| for bucket, count in enumerate(mm):
//| print("<", 2 ** bucket, count)
//|
//| """
//| ...
//|
STATIC mp_obj_t memorymonitor_allocationsize_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *all_args, mp_map_t *kw_args) {
memorymonitor_allocationsize_obj_t *self = m_new_obj(memorymonitor_allocationsize_obj_t);
self->base.type = &memorymonitor_allocationsize_type;
common_hal_memorymonitor_allocationsize_construct(self);
return MP_OBJ_FROM_PTR(self);
}
//| def __enter__(self) -> AllocationSize:
//| """Clears counts and resumes tracking."""
//| ...
//|
STATIC mp_obj_t memorymonitor_allocationsize_obj___enter__(mp_obj_t self_in) {
common_hal_memorymonitor_allocationsize_clear(self_in);
common_hal_memorymonitor_allocationsize_resume(self_in);
return self_in;
}
MP_DEFINE_CONST_FUN_OBJ_1(memorymonitor_allocationsize___enter___obj, memorymonitor_allocationsize_obj___enter__);
//| def __exit__(self) -> None:
//| """Automatically pauses allocation tracking when exiting a context. See
//| :ref:`lifetime-and-contextmanagers` for more info."""
//| ...
//|
STATIC mp_obj_t memorymonitor_allocationsize_obj___exit__(size_t n_args, const mp_obj_t *args) {
(void)n_args;
common_hal_memorymonitor_allocationsize_pause(args[0]);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(memorymonitor_allocationsize___exit___obj, 4, 4, memorymonitor_allocationsize_obj___exit__);
//| bytes_per_block: int
//| """Number of bytes per block"""
//|
STATIC mp_obj_t memorymonitor_allocationsize_obj_get_bytes_per_block(mp_obj_t self_in) {
memorymonitor_allocationsize_obj_t *self = MP_OBJ_TO_PTR(self_in);
return MP_OBJ_NEW_SMALL_INT(common_hal_memorymonitor_allocationsize_get_bytes_per_block(self));
}
MP_DEFINE_CONST_FUN_OBJ_1(memorymonitor_allocationsize_get_bytes_per_block_obj, memorymonitor_allocationsize_obj_get_bytes_per_block);
MP_PROPERTY_GETTER(memorymonitor_allocationsize_bytes_per_block_obj,
(mp_obj_t)&memorymonitor_allocationsize_get_bytes_per_block_obj);
//| def __len__(self) -> int:
//| """Returns the number of allocation buckets.
//|
//| This allows you to::
//|
//| mm = memorymonitor.AllocationSize()
//| print(len(mm))"""
//| ...
//|
STATIC mp_obj_t memorymonitor_allocationsize_unary_op(mp_unary_op_t op, mp_obj_t self_in) {
memorymonitor_allocationsize_obj_t *self = MP_OBJ_TO_PTR(self_in);
uint16_t len = common_hal_memorymonitor_allocationsize_get_len(self);
switch (op) {
case MP_UNARY_OP_BOOL:
return mp_obj_new_bool(len != 0);
case MP_UNARY_OP_LEN:
return MP_OBJ_NEW_SMALL_INT(len);
default:
return MP_OBJ_NULL; // op not supported
}
}
//| def __getitem__(self, index: int) -> Optional[int]:
//| """Returns the allocation count for the given bucket.
//|
//| This allows you to::
//|
//| mm = memorymonitor.AllocationSize()
//| print(mm[0])"""
//| ...
//|
STATIC mp_obj_t memorymonitor_allocationsize_subscr(mp_obj_t self_in, mp_obj_t index_obj, mp_obj_t value) {
if (value == mp_const_none) {
// delete item
mp_raise_AttributeError(translate("Cannot delete values"));
} else {
memorymonitor_allocationsize_obj_t *self = MP_OBJ_TO_PTR(self_in);
if (mp_obj_is_type(index_obj, &mp_type_slice)) {
mp_raise_NotImplementedError(translate("Slices not supported"));
} else {
size_t index = mp_get_index(&memorymonitor_allocationsize_type, common_hal_memorymonitor_allocationsize_get_len(self), index_obj, false);
if (value == MP_OBJ_SENTINEL) {
// load
return MP_OBJ_NEW_SMALL_INT(common_hal_memorymonitor_allocationsize_get_item(self, index));
} else {
mp_raise_AttributeError(translate("Read-only"));
}
}
}
return mp_const_none;
}
STATIC const mp_rom_map_elem_t memorymonitor_allocationsize_locals_dict_table[] = {
// Methods
{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&memorymonitor_allocationsize___enter___obj) },
{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&memorymonitor_allocationsize___exit___obj) },
// Properties
{ MP_ROM_QSTR(MP_QSTR_bytes_per_block), MP_ROM_PTR(&memorymonitor_allocationsize_bytes_per_block_obj) },
};
STATIC MP_DEFINE_CONST_DICT(memorymonitor_allocationsize_locals_dict, memorymonitor_allocationsize_locals_dict_table);
const mp_obj_type_t memorymonitor_allocationsize_type = {
{ &mp_type_type },
.name = MP_QSTR_AllocationSize,
.make_new = memorymonitor_allocationsize_make_new,
.subscr = memorymonitor_allocationsize_subscr,
.unary_op = memorymonitor_allocationsize_unary_op,
.getiter = mp_obj_new_generic_iterator,
.locals_dict = (mp_obj_dict_t *)&memorymonitor_allocationsize_locals_dict,
};
|
