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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 "shared-bindings/memorymonitor/AllocationSize.h"

#include "py/gc.h"

#include "py/mpstate.h"

#include "py/runtime.h"

void common_hal_memorymonitor_allocationsize_construct(memorymonitor_allocationsize_obj_t *self) {

common_hal_memorymonitor_allocationsize_clear(self);

self->next = NULL;

self->previous = NULL;

}

void common_hal_memorymonitor_allocationsize_pause(memorymonitor_allocationsize_obj_t *self) {

*self->previous = self->next;

self->next = NULL;

self->previous = NULL;

}

void common_hal_memorymonitor_allocationsize_resume(memorymonitor_allocationsize_obj_t *self) {

if (self->previous != NULL) {

mp_raise_RuntimeError(translate("Already running"));

}

self->next = MP_STATE_VM(active_allocationsizes);

self->previous = (memorymonitor_allocationsize_obj_t **)&MP_STATE_VM(active_allocationsizes);

if (self->next != NULL) {

self->next->previous = &self->next;

}

MP_STATE_VM(active_allocationsizes) = self;

}

void common_hal_memorymonitor_allocationsize_clear(memorymonitor_allocationsize_obj_t *self) {

for (size_t i = 0; i < ALLOCATION_SIZE_BUCKETS; i++) {

self->buckets[i] = 0;

}

}

uint16_t common_hal_memorymonitor_allocationsize_get_len(memorymonitor_allocationsize_obj_t *self) {

return ALLOCATION_SIZE_BUCKETS;

}

size_t common_hal_memorymonitor_allocationsize_get_bytes_per_block(memorymonitor_allocationsize_obj_t *self) {

return BYTES_PER_BLOCK;

}

uint16_t common_hal_memorymonitor_allocationsize_get_item(memorymonitor_allocationsize_obj_t *self, int16_t index) {

return self->buckets[index];

}

void memorymonitor_allocationsizes_track_allocation(size_t block_count) {

memorymonitor_allocationsize_obj_t *as = MP_OBJ_TO_PTR(MP_STATE_VM(active_allocationsizes));

size_t power_of_two = 0;

block_count >>= 1;

while (block_count != 0) {

power_of_two++;

block_count >>= 1;

}

while (as != NULL) {

as->buckets[power_of_two]++;

as = as->next;

}

}

void memorymonitor_allocationsizes_reset(void) {

MP_STATE_VM(active_allocationsizes) = NULL;

}