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120 lines
3.8 KiB
120 lines
3.8 KiB
/*
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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) 2013, 2014 Damien P. George
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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 "mpconfig.h"
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#include "misc.h"
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#include "qstr.h"
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#include "obj.h"
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#include "runtime.h"
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#include "gc.h"
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#if MICROPY_PY_GC && MICROPY_ENABLE_GC
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/// \module gc - control the garbage collector
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extern uint gc_collected;
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/// \function collect()
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/// Run a garbage collection.
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STATIC mp_obj_t py_gc_collect(void) {
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gc_collect();
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#if MICROPY_PY_GC_COLLECT_RETVAL
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return MP_OBJ_NEW_SMALL_INT(gc_collected);
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#else
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return mp_const_none;
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#endif
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}
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MP_DEFINE_CONST_FUN_OBJ_0(gc_collect_obj, py_gc_collect);
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/// \function disable()
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/// Disable the garbage collector.
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STATIC mp_obj_t gc_disable(void) {
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gc_auto_collect_enabled = 0;
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_0(gc_disable_obj, gc_disable);
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/// \function enable()
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/// Enable the garbage collector.
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STATIC mp_obj_t gc_enable(void) {
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gc_auto_collect_enabled = 1;
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_0(gc_enable_obj, gc_enable);
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STATIC mp_obj_t gc_isenabled(void) {
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return MP_BOOL(gc_auto_collect_enabled);
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}
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MP_DEFINE_CONST_FUN_OBJ_0(gc_isenabled_obj, gc_isenabled);
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/// \function mem_free()
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/// Return the number of bytes of available heap RAM.
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STATIC mp_obj_t gc_mem_free(void) {
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gc_info_t info;
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gc_info(&info);
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return MP_OBJ_NEW_SMALL_INT(info.free);
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}
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MP_DEFINE_CONST_FUN_OBJ_0(gc_mem_free_obj, gc_mem_free);
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/// \function mem_alloc()
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/// Return the number of bytes of heap RAM that are allocated.
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STATIC mp_obj_t gc_mem_alloc(void) {
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gc_info_t info;
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gc_info(&info);
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return MP_OBJ_NEW_SMALL_INT(info.used);
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}
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MP_DEFINE_CONST_FUN_OBJ_0(gc_mem_alloc_obj, gc_mem_alloc);
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STATIC const mp_map_elem_t mp_module_gc_globals_table[] = {
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{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_gc) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_collect), (mp_obj_t)&gc_collect_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_disable), (mp_obj_t)&gc_disable_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_enable), (mp_obj_t)&gc_enable_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_isenabled), (mp_obj_t)&gc_isenabled_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_mem_free), (mp_obj_t)&gc_mem_free_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_mem_alloc), (mp_obj_t)&gc_mem_alloc_obj },
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};
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STATIC const mp_obj_dict_t mp_module_gc_globals = {
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.base = {&mp_type_dict},
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.map = {
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.all_keys_are_qstrs = 1,
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.table_is_fixed_array = 1,
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.used = MP_ARRAY_SIZE(mp_module_gc_globals_table),
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.alloc = MP_ARRAY_SIZE(mp_module_gc_globals_table),
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.table = (mp_map_elem_t*)mp_module_gc_globals_table,
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},
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};
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const mp_obj_module_t mp_module_gc = {
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.base = { &mp_type_module },
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.name = MP_QSTR_gc,
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.globals = (mp_obj_dict_t*)&mp_module_gc_globals,
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};
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#endif
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