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Merge pull request #3454 from cwalther/setnextcode

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Add supervisor.set_next_code_file()
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Scott Shawcroft 2021-06-25 11:00:53 -07:00 committed by GitHub
commit d67fb852a1
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6 changed files with 200 additions and 16 deletions
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6
locale/circuitpython.pot
View File

@ -47,6 +47,10 @@ msgstr ""
msgid " is of type %q\n"
msgstr ""
#: main.c
msgid " not found.\n"
msgstr ""
#: main.c
msgid " output:\n"
msgstr ""
@ -2507,7 +2511,7 @@ msgstr ""
msgid "argsort is not implemented for flattened arrays"
msgstr ""
#: py/runtime.c
#: py/runtime.c shared-bindings/supervisor/__init__.c
msgid "argument has wrong type"
msgstr ""

92
main.c
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@ -290,7 +290,12 @@ STATIC bool run_code_py(safe_mode_t safe_mode) {
result.exception_type = NULL;
result.exception_line = 0;
bool skip_repl;
bool skip_wait = false;
bool found_main = false;
uint8_t next_code_options = 0;
// Collects stickiness bits that apply in the current situation.
uint8_t next_code_stickiness_situation = SUPERVISOR_NEXT_CODE_OPT_NEWLY_SET;
if (safe_mode == NO_SAFE_MODE) {
static const char * const supported_filenames[] = STRING_LIST(
@ -312,25 +317,71 @@ STATIC bool run_code_py(safe_mode_t safe_mode) {
usb_setup_with_vm();
#endif
// This is where the user's python code is actually executed:
found_main = maybe_run_list(supported_filenames, &result);
// If that didn't work, double check the extensions
#if CIRCUITPY_FULL_BUILD
if (!found_main){
found_main = maybe_run_list(double_extension_filenames, &result);
if (found_main) {
serial_write_compressed(translate("WARNING: Your code filename has two extensions\n"));
// Check if a different run file has been allocated
if (next_code_allocation) {
((next_code_info_t*)next_code_allocation->ptr)->options &= ~SUPERVISOR_NEXT_CODE_OPT_NEWLY_SET;
next_code_options = ((next_code_info_t*)next_code_allocation->ptr)->options;
if (((next_code_info_t*)next_code_allocation->ptr)->filename[0] != '\0') {
const char* next_list[] = {((next_code_info_t*)next_code_allocation->ptr)->filename, ""};
// This is where the user's python code is actually executed:
found_main = maybe_run_list(next_list, &result);
if (!found_main) {
serial_write(((next_code_info_t*)next_code_allocation->ptr)->filename);
serial_write_compressed(translate(" not found.\n"));
}
}
}
#else
(void) found_main;
#endif
// Otherwise, default to the standard list of filenames
if (!found_main) {
// This is where the user's python code is actually executed:
found_main = maybe_run_list(supported_filenames, &result);
// If that didn't work, double check the extensions
#if CIRCUITPY_FULL_BUILD
if (!found_main){
found_main = maybe_run_list(double_extension_filenames, &result);
if (found_main) {
serial_write_compressed(translate("WARNING: Your code filename has two extensions\n"));
}
}
#else
(void) found_main;
#endif
}
// Finished executing python code. Cleanup includes a board reset.
cleanup_after_vm(heap);
// If a new next code file was set, that is a reason to keep it (obviously). Stuff this into
// the options because it can be treated like any other reason-for-stickiness bit. The
// source is different though: it comes from the options that will apply to the next run,
// while the rest of next_code_options is what applied to this run.
if (next_code_allocation != NULL && (((next_code_info_t*)next_code_allocation->ptr)->options & SUPERVISOR_NEXT_CODE_OPT_NEWLY_SET)) {
next_code_options |= SUPERVISOR_NEXT_CODE_OPT_NEWLY_SET;
}
if (reload_requested) {
next_code_stickiness_situation |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_RELOAD;
}
else if (result.return_code == 0) {
next_code_stickiness_situation |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_SUCCESS;
if (next_code_options & SUPERVISOR_NEXT_CODE_OPT_RELOAD_ON_SUCCESS) {
skip_repl = true;
skip_wait = true;
}
}
else {
next_code_stickiness_situation |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_ERROR;
// Deep sleep cannot be skipped
// TODO: settings in deep sleep should persist, using a new sleep memory API
if (next_code_options & SUPERVISOR_NEXT_CODE_OPT_RELOAD_ON_ERROR
&& !(result.return_code & PYEXEC_DEEP_SLEEP)) {
skip_repl = true;
skip_wait = true;
}
}
if (result.return_code & PYEXEC_FORCED_EXIT) {
return reload_requested;
skip_repl = reload_requested;
skip_wait = true;
}
if (reload_requested && result.return_code == PYEXEC_EXCEPTION) {
@ -378,12 +429,17 @@ STATIC bool run_code_py(safe_mode_t safe_mode) {
#if CIRCUITPY_ALARM
bool fake_sleeping = false;
#endif
bool skip_repl = false;
while (true) {
while (!skip_wait) {
RUN_BACKGROUND_TASKS;
// If a reload was requested by the supervisor or autoreload, return
if (reload_requested) {
next_code_stickiness_situation |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_RELOAD;
// Should the STICKY_ON_SUCCESS and STICKY_ON_ERROR bits be cleared in
// next_code_stickiness_situation? I can see arguments either way, but I'm deciding
// "no" for now, mainly because it's a bit less code. At this point, we have both a
// success or error and a reload, so let's have both of the respective options take
// effect (in OR combination).
reload_requested = false;
skip_repl = true;
break;
@ -518,6 +574,13 @@ STATIC bool run_code_py(safe_mode_t safe_mode) {
port_idle_until_interrupt();
}
}
// free code allocation if unused
if ((next_code_options & next_code_stickiness_situation) == 0) {
free_memory(next_code_allocation);
next_code_allocation = NULL;
}
// Done waiting, start the board back up.
#if CIRCUITPY_STATUS_LED
if (led_active) {
@ -531,6 +594,7 @@ STATIC bool run_code_py(safe_mode_t safe_mode) {
board_init();
}
#endif
return skip_repl;
}

97
shared-bindings/supervisor/__init__.c
View File

@ -23,9 +23,12 @@
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <string.h>
#include "py/obj.h"
#include "py/runtime.h"
#include "py/reload.h"
#include "py/objstr.h"
#include "lib/utils/interrupt_char.h"
#include "supervisor/shared/autoreload.h"
@ -112,6 +115,98 @@ STATIC mp_obj_t supervisor_set_next_stack_limit(mp_obj_t size_obj) {
}
MP_DEFINE_CONST_FUN_OBJ_1(supervisor_set_next_stack_limit_obj, supervisor_set_next_stack_limit);
//| def set_next_code_file(filename: Optional[str], *, reload_on_success : bool = False, reload_on_error: bool = False, sticky_on_success: bool = False, sticky_on_error: bool = False, sticky_on_reload: bool = False) -> None:
//| """Set what file to run on the next vm run.
//|
//| When not ``None``, the given ``filename`` is inserted at the front of the usual ['code.py',
//| 'main.py'] search sequence.
//|
//| The optional keyword arguments specify what happens after the specified file has run:
//|
//| ``sticky_on_…`` determine whether the newly set filename and options stay in effect: If
//| True, further runs will continue to run that file (unless it says otherwise by calling
//| ``set_next_code_filename()`` itself). If False, the settings will only affect one run and
//| revert to the standard code.py/main.py afterwards.
//|
//| ``reload_on_…`` determine how to continue: If False, wait in the usual "Code done running.
//| Waiting for reload. / Press any key to enter the REPL. Use CTRL-D to reload." state. If
//| True, reload immediately as if CTRL-D was pressed.
//|
//| ``…_on_success`` take effect when the program runs to completion or calls ``sys.exit()``.
//|
//| ``…_on_error`` take effect when the program exits with an exception, including the
//| KeyboardInterrupt caused by CTRL-C.
//|
//| ``…_on_reload`` take effect when the program is interrupted by files being written to the USB
//| drive (auto-reload) or when it calls ``supervisor.reload()``.
//|
//| These settings are stored in RAM, not in persistent memory, and will therefore only affect
//| soft reloads. Powering off or resetting the device will always revert to standard settings.
//|
//| When called multiple times in the same run, only the last call takes effect, replacing any
//| settings made by previous ones. This is the main use of passing ``None`` as a filename: to
//| reset to the standard search sequence."""
//| ...
//|
STATIC mp_obj_t supervisor_set_next_code_file(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_filename, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_rom_obj = mp_const_none} },
{ MP_QSTR_reload_on_success, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_reload_on_error, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_sticky_on_success, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_sticky_on_error, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_sticky_on_reload, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
};
struct {
mp_arg_val_t filename;
mp_arg_val_t reload_on_success;
mp_arg_val_t reload_on_error;
mp_arg_val_t sticky_on_success;
mp_arg_val_t sticky_on_error;
mp_arg_val_t sticky_on_reload;
} args;
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, (mp_arg_val_t *)&args);
if (!mp_obj_is_str_or_bytes(args.filename.u_obj) && args.filename.u_obj != mp_const_none) {
mp_raise_TypeError(translate("argument has wrong type"));
}
if (args.filename.u_obj == mp_const_none) {
args.filename.u_obj = mp_const_empty_bytes;
}
uint8_t options = 0;
if (args.reload_on_success.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_RELOAD_ON_SUCCESS;
}
if (args.reload_on_error.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_RELOAD_ON_ERROR;
}
if (args.sticky_on_success.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_SUCCESS;
}
if (args.sticky_on_error.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_ERROR;
}
if (args.sticky_on_reload.u_bool) {
options |= SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_RELOAD;
}
size_t len;
const char *filename = mp_obj_str_get_data(args.filename.u_obj, &len);
free_memory(next_code_allocation);
if (options != 0 || len != 0) {
next_code_allocation = allocate_memory(align32_size(sizeof(next_code_info_t) + len + 1), false, true);
if (next_code_allocation == NULL) {
m_malloc_fail(sizeof(next_code_info_t) + len + 1);
}
next_code_info_t *next_code = (next_code_info_t *)next_code_allocation->ptr;
next_code->options = options | SUPERVISOR_NEXT_CODE_OPT_NEWLY_SET;
memcpy(&next_code->filename, filename, len);
next_code->filename[len] = '\0';
} else {
next_code_allocation = NULL;
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(supervisor_set_next_code_file_obj, 0, supervisor_set_next_code_file);
STATIC const mp_rom_map_elem_t supervisor_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_supervisor) },
{ MP_ROM_QSTR(MP_QSTR_enable_autoreload), MP_ROM_PTR(&supervisor_enable_autoreload_obj) },
@ -121,7 +216,7 @@ STATIC const mp_rom_map_elem_t supervisor_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_reload), MP_ROM_PTR(&supervisor_reload_obj) },
{ MP_ROM_QSTR(MP_QSTR_RunReason), MP_ROM_PTR(&supervisor_run_reason_type) },
{ MP_ROM_QSTR(MP_QSTR_set_next_stack_limit), MP_ROM_PTR(&supervisor_set_next_stack_limit_obj) },
{ MP_ROM_QSTR(MP_QSTR_set_next_code_file), MP_ROM_PTR(&supervisor_set_next_code_file_obj) },
};
STATIC MP_DEFINE_CONST_DICT(supervisor_module_globals, supervisor_module_globals_table);

1
supervisor/shared/autoreload.c
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@ -30,6 +30,7 @@
#include "py/reload.h"
#include "supervisor/shared/tick.h"
supervisor_allocation *next_code_allocation;
#include "shared-bindings/supervisor/Runtime.h"
static volatile uint32_t autoreload_delay_ms = 0;

18
supervisor/shared/autoreload.h
View File

@ -29,6 +29,24 @@
#include <stdbool.h>
#include "supervisor/memory.h"
enum {
SUPERVISOR_NEXT_CODE_OPT_RELOAD_ON_SUCCESS = 0x1,
SUPERVISOR_NEXT_CODE_OPT_RELOAD_ON_ERROR = 0x2,
SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_SUCCESS = 0x4,
SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_ERROR = 0x8,
SUPERVISOR_NEXT_CODE_OPT_STICKY_ON_RELOAD = 0x10,
SUPERVISOR_NEXT_CODE_OPT_NEWLY_SET = 0x20,
};
typedef struct {
uint8_t options;
char filename[];
} next_code_info_t;
extern supervisor_allocation *next_code_allocation;
extern volatile bool reload_requested;
void autoreload_tick(void);

2
supervisor/shared/memory.c
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@ -36,6 +36,8 @@ enum {
CIRCUITPY_SUPERVISOR_IMMOVABLE_ALLOC_COUNT =
// stack + heap
2
// next_code_allocation
+ 1
#if INTERNAL_FLASH_FILESYSTEM == 0
+ 1