99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
/** Minimal terminal using pollcat - main loop
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*
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* This file is part of the Pollcat Library.
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* Copyright (C) 2022 Expatria Technologies Inc.
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* Contact: Morgan Hughes <morgan@expatria.ca>
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*
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* The Pollcat Library is free software: you can redistribute it and/or modify it under
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* the terms of the the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 3 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received copies of the GNU General Public License and the GNU Lesser
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* General Public License along with the Pollcat Library. If not, see
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* https://www.gnu.org/licenses/
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*
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* vim:ts=4:noexpandtab
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <signal.h>
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#include <pollcat.h>
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#include "terminal.h"
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char *opt_node = "/dev/ttyUSB0";
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char *opt_speed = "115200N81";
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static void signal_fatal (int signum)
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{
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fprintf(stderr, "Fatal signal %d, exit loop\n", signum);
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pollcat_loop_exit();
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}
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extern char *__progname;
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static void usage (void)
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{
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printf("Usage: %s [-t timeout] [-b speed] [node]\n"
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"-t timeout Timeout for poll() calls (ms)\n"
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"-b speed Speed/parity/data/stop bits (default 115200N81)\n"
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"node should be a serial device, such as /dev/ttyS0 or /dev/ttyUSB0\n",
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__progname);
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exit(1);
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}
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int main (int argc, char **argv)
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{
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int opt;
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while ( (opt = getopt(argc, argv, "t:b:")) != -1 )
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switch ( opt )
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{
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case 't':
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pollcat_time_base = atoi(optarg);
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break;
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case 'b':
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opt_speed = optarg;
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break;
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default:
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usage();
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}
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if ( optind < argc )
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opt_node = argv[optind];
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if ( serial_init(opt_node, opt_speed) )
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{
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perror(opt_node);
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return 1;
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}
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if ( tty_init() )
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{
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perror("tty_init");
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return 1;
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}
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signal(SIGTERM, signal_fatal);
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signal(SIGINT, signal_fatal);
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while ( pollcat_loop(NULL) )
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;
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tty_done();
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serial_done();
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return 0;
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}
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