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