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/*

* This file is part of the Micro Python project, http://micropython.org/

*

* The MIT License (MIT)

*

* Copyright (c) 2013, 2014 Damien P. George

*

* 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.

*/

#ifndef __MICROPY_INCLUDED_PY_GC_H__

#define __MICROPY_INCLUDED_PY_GC_H__

#include <stdint.h>

#include "py/mpconfig.h"

#include "py/misc.h"

void gc_init(void *start, void *end);

// These lock/unlock functions can be nested.

// They can be used to prevent the GC from allocating/freeing.

void gc_lock(void);

void gc_unlock(void);

bool gc_is_locked(void);

// A given port must implement gc_collect by using the other collect functions.

void gc_collect(void);

void gc_collect_start(void);

void gc_collect_root(void **ptrs, size_t len);

void gc_collect_end(void);

void *gc_alloc(size_t n_bytes, bool has_finaliser);

void gc_free(void *ptr); // does not call finaliser

size_t gc_nbytes(const void *ptr);

void *gc_realloc(void *ptr, size_t n_bytes, bool allow_move);

typedef struct _gc_info_t {

size_t total;

size_t used;

size_t free;

size_t num_1block;

size_t num_2block;

size_t max_block;

} gc_info_t;

void gc_info(gc_info_t *info);

void gc_dump_info(void);

void gc_dump_alloc_table(void);

#endif // __MICROPY_INCLUDED_PY_GC_H__