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Expose memory stats functions via "micropython" module. 

These are micropython.mem_total(), .mem_current(), .mem_peak(). These are 3
individual functions with simple scalar return value to make sure that
calls to these functions themselves have minimal (hopefully zero) impact on
memory allocation.
This commit is contained in:
Paul Sokolovsky 2014-01-20 01:53:15 +02:00
parent 164774c1c1
commit 440cc3f028
4 changed files with 45 additions and 5 deletions
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4
py/builtin.h
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@ -26,3 +26,7 @@ MP_DECLARE_CONST_FUN_OBJ(mp_builtin_repr_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_sorted_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_sum_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_str_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_mem_total_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_mem_current_obj);
MP_DECLARE_CONST_FUN_OBJ(mp_builtin_mem_peak_obj);

32
py/builtinmp.c Normal file
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@ -0,0 +1,32 @@
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include "misc.h"
#include "mpconfig.h"
#include "obj.h"
#include "builtin.h"
// Various builtins specific to MicroPython runtime,
// living in micropython module
#if MICROPY_MEM_STATS
static mp_obj_t mem_total() {
return MP_OBJ_NEW_SMALL_INT(m_get_total_bytes_allocated());
}
static mp_obj_t mem_current() {
return MP_OBJ_NEW_SMALL_INT(m_get_current_bytes_allocated());
}
static mp_obj_t mem_peak() {
return MP_OBJ_NEW_SMALL_INT(m_get_peak_bytes_allocated());
}
MP_DEFINE_CONST_FUN_OBJ_0(mp_builtin_mem_total_obj, mem_total);
MP_DEFINE_CONST_FUN_OBJ_0(mp_builtin_mem_current_obj, mem_current);
MP_DEFINE_CONST_FUN_OBJ_0(mp_builtin_mem_peak_obj, mem_peak);
#endif

1
py/py.mk
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@ -101,6 +101,7 @@ PY_O_BASENAME = \
builtin.o \
builtinimport.o \
builtineval.o \
builtinmp.o \
vm.o \
showbc.o \
repl.o \

13
py/runtime.c
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@ -153,15 +153,18 @@ void rt_init(void) {
mp_map_add_qstr(&map_builtins, MP_QSTR_bytearray, (mp_obj_t)&mp_builtin_bytearray_obj);
#if MICROPY_CPYTHON_COMPAT
// Add (empty) micropython module, so it was possible to "import micropython",
// which can be a placeholder module on CPython.
mp_obj_t m_mp = mp_obj_new_module(qstr_from_str_static("micropython"));
rt_store_name(qstr_from_str_static("micropython"), m_mp);
// Precreate sys module, so "import sys" didn't throw exceptions.
mp_obj_new_module(qstr_from_str_static("sys"));
#endif
mp_obj_t m_mp = mp_obj_new_module(qstr_from_str_static("micropython"));
rt_store_name(qstr_from_str_static("micropython"), m_mp);
#if MICROPY_MEM_STATS
rt_store_attr(m_mp, qstr_from_str_static("mem_total"), (mp_obj_t)&mp_builtin_mem_total_obj);
rt_store_attr(m_mp, qstr_from_str_static("mem_current"), (mp_obj_t)&mp_builtin_mem_current_obj);
rt_store_attr(m_mp, qstr_from_str_static("mem_peak"), (mp_obj_t)&mp_builtin_mem_peak_obj);
#endif
next_unique_code_id = 1; // 0 indicates "no code"
unique_codes_alloc = 0;
unique_codes = NULL;