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