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py: Put mp_sys_path, mp_sys_argv and gc_collected in mp_state_ctx_t.

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Without mp_sys_path and mp_sys_argv in the root pointer section of the
state, their memory was being incorrectly collected by GC.
This commit is contained in:
Damien George 2015-02-07 17:24:10 +00:00
parent 8785645a95
commit e1e359ff59
5 changed files with 17 additions and 21 deletions
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8
py/gc.c
View File

@ -222,13 +222,9 @@ STATIC void gc_deal_with_stack_overflow(void) {
}
}
#if MICROPY_PY_GC_COLLECT_RETVAL
uint gc_collected;
#endif
STATIC void gc_sweep(void) {
#if MICROPY_PY_GC_COLLECT_RETVAL
gc_collected = 0;
MP_STATE_MEM(gc_collected) = 0;
#endif
// free unmarked heads and their tails
int free_tail = 0;
@ -253,7 +249,7 @@ STATIC void gc_sweep(void) {
#endif
free_tail = 1;
#if MICROPY_PY_GC_COLLECT_RETVAL
gc_collected++;
MP_STATE_MEM(gc_collected)++;
#endif
// fall through to free the head

2
py/modgc.c
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@ -39,7 +39,7 @@ extern uint gc_collected;
STATIC mp_obj_t py_gc_collect(void) {
gc_collect();
#if MICROPY_PY_GC_COLLECT_RETVAL
return MP_OBJ_NEW_SMALL_INT(gc_collected);
return MP_OBJ_NEW_SMALL_INT(MP_STATE_MEM(gc_collected));
#else
return mp_const_none;
#endif

12
py/modsys.c
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@ -24,6 +24,7 @@
* THE SOFTWARE.
*/
#include "py/mpstate.h"
#include "py/nlr.h"
#include "py/builtin.h"
#include "py/objlist.h"
@ -42,13 +43,6 @@ extern mp_uint_t mp_sys_stdin_obj;
extern mp_uint_t mp_sys_stdout_obj;
extern mp_uint_t mp_sys_stderr_obj;
// These two lists must be initialised per port (after the call to mp_init).
// TODO document these properly, they aren't constants or functions...
/// \constant path - a mutable list of directories to search for imported modules
mp_obj_list_t mp_sys_path_obj;
/// \constant argv - a mutable list of arguments this program started with
mp_obj_list_t mp_sys_argv_obj;
/// \constant version - Python language version that this implementation conforms to, as a string
STATIC const MP_DEFINE_STR_OBJ(version_obj, "3.4.0");
@ -99,8 +93,8 @@ MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_sys_print_exception_obj, 1, 2, mp_sys_pri
STATIC const mp_map_elem_t mp_module_sys_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_sys) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_path), (mp_obj_t)&mp_sys_path_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_argv), (mp_obj_t)&mp_sys_argv_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_path), (mp_obj_t)&MP_STATE_VM(mp_sys_path_obj) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_argv), (mp_obj_t)&MP_STATE_VM(mp_sys_argv_obj) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_version), (mp_obj_t)&version_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_version_info), (mp_obj_t)&mp_sys_version_info_obj },
#ifdef MICROPY_PY_SYS_PLATFORM

10
py/mpstate.h
View File

@ -32,7 +32,7 @@
#include "py/misc.h"
#include "py/nlr.h"
#include "py/obj.h"
#include "py/objlist.h" // in case port needs mp_obj_list_t in root pointers
#include "py/objlist.h"
#include "py/objexcept.h"
// This file contains structures defining the state of the Micro Python
@ -66,6 +66,10 @@ typedef struct _mp_state_mem_t {
uint16_t gc_auto_collect_enabled;
mp_uint_t gc_last_free_atb_index;
#if MICROPY_PY_GC_COLLECT_RETVAL
mp_uint_t gc_collected;
#endif
} mp_state_mem_t;
// This structure hold runtime and VM information. It includes a section
@ -106,6 +110,10 @@ typedef struct _mp_state_vm_t {
// dictionary for the __main__ module
mp_obj_dict_t dict_main;
// these two lists must be initialised per port, after the call to mp_init
mp_obj_list_t mp_sys_path_obj;
mp_obj_list_t mp_sys_argv_obj;
// dictionary for overridden builtins
#if MICROPY_CAN_OVERRIDE_BUILTINS
mp_obj_dict_t *mp_module_builtins_override_dict;

6
py/runtime.h
View File

@ -125,10 +125,8 @@ mp_obj_t mp_convert_native_to_obj(mp_uint_t val, mp_uint_t type);
mp_obj_t mp_native_call_function_n_kw(mp_obj_t fun_in, mp_uint_t n_args_kw, const mp_obj_t *args);
void mp_native_raise(mp_obj_t o);
extern struct _mp_obj_list_t mp_sys_path_obj;
extern struct _mp_obj_list_t mp_sys_argv_obj;
#define mp_sys_path ((mp_obj_t)&mp_sys_path_obj)
#define mp_sys_argv ((mp_obj_t)&mp_sys_argv_obj)
#define mp_sys_path ((mp_obj_t)&MP_STATE_VM(mp_sys_path_obj))
#define mp_sys_argv ((mp_obj_t)&MP_STATE_VM(mp_sys_argv_obj))
#if MICROPY_WARNINGS
void mp_warning(const char *msg, ...);