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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
* Copyright (c) 2015 Daniel Campora
*
* 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.
*/
#include <stdint.h>
#include <string.h>
#include "py/mpstate.h"
#include "mpexception.h"
/******************************************************************************
DECLARE PRIVATE FUNCTIONS
******************************************************************************/
STATIC void mpexception_set_user_interrupt (int chr, void *data);
/******************************************************************************
DECLARE EXPORTED DATA
******************************************************************************/
const char mpexception_os_resource_not_avaliable[] = "resource not available";
const char mpexception_os_operation_failed[] = "the requested operation failed";
const char mpexception_os_request_not_possible[] = "the requested operation is not possible";
const char mpexception_value_invalid_arguments[] = "invalid argument(s) value";
const char mpexception_num_type_invalid_arguments[] = "invalid argument(s) num/type";
const char mpexception_uncaught[] = "uncaught exception";
int user_interrupt_char = -1;
/******************************************************************************
DECLARE PRIVATE DATA
******************************************************************************/
STATIC void *user_interrupt_data = NULL;
/******************************************************************************
DEFINE PUBLIC FUNCTIONS
******************************************************************************/
void mpexception_init0 (void) {
// Create an exception object for interrupting through the stdin uart
MP_STATE_PORT(mp_const_user_interrupt) = mp_obj_new_exception(&mp_type_KeyboardInterrupt);
mpexception_set_user_interrupt (-1, MP_STATE_PORT(mp_const_user_interrupt));
}
void mpexception_set_interrupt_char (int c) {
if (c != -1) {
mp_obj_exception_clear_traceback(MP_STATE_PORT(mp_const_user_interrupt));
}
mpexception_set_user_interrupt(c, MP_STATE_PORT(mp_const_user_interrupt));
}
// Call this function to raise a pending exception during an interrupt.
// It will try to raise the exception "softly" by setting the
// mp_pending_exception variable hoping that the VM will notice it.
void mpexception_nlr_jump (void *o) {
if (MP_STATE_PORT(mp_pending_exception) == MP_OBJ_NULL) {
MP_STATE_PORT(mp_pending_exception) = o;
}
}
void mpexception_keyboard_nlr_jump (void) {
mpexception_nlr_jump (user_interrupt_data);
}
/******************************************************************************
DEFINE PRIVATE FUNCTIONS
******************************************************************************/
STATIC void mpexception_set_user_interrupt (int chr, void *data) {
user_interrupt_char = chr;
user_interrupt_data = data;
}