127 lines
3.7 KiB
C
127 lines
3.7 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) 2015 Damien P. George
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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 <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include "py/mpstate.h"
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#include "py/mphal.h"
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#ifndef _WIN32
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#include <signal.h>
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STATIC void sighandler(int signum) {
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if (signum == SIGINT) {
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if (MP_STATE_VM(mp_pending_exception) == MP_STATE_VM(keyboard_interrupt_obj)) {
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// this is the second time we are called, so die straight away
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exit(1);
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}
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mp_obj_exception_clear_traceback(MP_STATE_VM(keyboard_interrupt_obj));
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MP_STATE_VM(mp_pending_exception) = MP_STATE_VM(keyboard_interrupt_obj);
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}
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}
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#endif
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void mp_hal_set_interrupt_char(char c) {
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// configure terminal settings to (not) let ctrl-C through
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if (c == CHAR_CTRL_C) {
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#ifndef _WIN32
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// enable signal handler
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struct sigaction sa;
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sa.sa_handler = sighandler;
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sigemptyset(&sa.sa_mask);
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sigaction(SIGINT, &sa, NULL);
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#endif
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} else {
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#ifndef _WIN32
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// disable signal handler
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struct sigaction sa;
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sa.sa_handler = SIG_DFL;
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sigemptyset(&sa.sa_mask);
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sigaction(SIGINT, &sa, NULL);
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#endif
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}
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}
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#if MICROPY_USE_READLINE == 1
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#include <termios.h>
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static struct termios orig_termios;
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void mp_hal_stdio_mode_raw(void) {
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// save and set terminal settings
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tcgetattr(0, &orig_termios);
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static struct termios termios;
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termios = orig_termios;
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termios.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
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termios.c_cflag = (termios.c_cflag & ~(CSIZE | PARENB)) | CS8;
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termios.c_lflag = 0;
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termios.c_cc[VMIN] = 1;
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termios.c_cc[VTIME] = 0;
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tcsetattr(0, TCSAFLUSH, &termios);
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}
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void mp_hal_stdio_mode_orig(void) {
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// restore terminal settings
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tcsetattr(0, TCSAFLUSH, &orig_termios);
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}
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#endif
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int mp_hal_stdin_rx_chr(void) {
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unsigned char c;
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int ret = read(0, &c, 1);
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if (ret == 0) {
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c = 4; // EOF, ctrl-D
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} else if (c == '\n') {
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c = '\r';
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}
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return c;
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}
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void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
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int ret = write(1, str, len);
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(void)ret; // to suppress compiler warning
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}
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// cooked is same as uncooked because the terminal does some postprocessing
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void mp_hal_stdout_tx_strn_cooked(const char *str, mp_uint_t len) {
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mp_hal_stdout_tx_strn(str, len);
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}
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void mp_hal_stdout_tx_str(const char *str) {
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mp_hal_stdout_tx_strn(str, strlen(str));
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}
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mp_uint_t mp_hal_ticks_ms(void) {
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv.tv_sec * 1000 + tv.tv_usec / 1000;
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}
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