Initial commit of Pollcat library

2022-06-28 15:25:57 -07:00
commit bbd4625d43
26 changed files with 3534 additions and 0 deletions
--- a/example/main.c
+++ b/example/main.c
@@ -0,0 +1,98 @@
+/** Minimal terminal using pollcat - main loop
+ *
+ *  This file is part of the Pollcat Library.
+ *  Copyright (C) 2022 Expatria Technologies Inc.
+ *  Contact: Morgan Hughes <morgan@expatria.ca>
+ *
+ *  The Pollcat Library is free software: you can redistribute it and/or modify it under
+ *  the terms of the the GNU Lesser General Public License as published by the Free
+ *  Software Foundation; either version 3 of the License, or (at your option) any later
+ *  version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY
+ *  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ *  PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received copies of the GNU General Public License and the GNU Lesser
+ *  General Public License along with the Pollcat Library.  If not, see
+ *  https://www.gnu.org/licenses/
+ *
+ *  vim:ts=4:noexpandtab
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+
+#include <pollcat.h>
+
+#include "terminal.h"
+
+
+char *opt_node  = "/dev/ttyUSB0";
+char *opt_speed = "115200N81";
+
+
+static void signal_fatal (int signum)
+{
+	fprintf(stderr, "Fatal signal %d, exit loop\n", signum);
+	pollcat_loop_exit();
+}
+
+extern char *__progname;
+static void usage (void)
+{
+	printf("Usage: %s [-t timeout] [-b speed] [node]\n"
+	       "-t timeout    Timeout for poll() calls (ms)\n"
+	       "-b speed      Speed/parity/data/stop bits (default 115200N81)\n"
+	       "node should be a serial device, such as /dev/ttyS0 or /dev/ttyUSB0\n",
+	       __progname);
+	exit(1);
+}
+
+int main (int argc, char **argv)
+{
+	int opt;
+	while ( (opt = getopt(argc, argv, "t:b:")) != -1 )
+		switch ( opt )
+		{
+			case 't':
+				pollcat_time_base = atoi(optarg);
+				break;
+
+			case 'b':
+				opt_speed = optarg;
+				break;
+
+			default:
+				usage();
+		}
+
+	if ( optind < argc )
+		opt_node = argv[optind];
+
+	if ( serial_init(opt_node, opt_speed) )
+	{
+		perror(opt_node);
+		return 1;
+	}
+
+	if ( tty_init() )
+	{
+		perror("tty_init");
+		return 1;
+	}
+
+	signal(SIGTERM, signal_fatal);
+	signal(SIGINT,  signal_fatal);
+
+	while ( pollcat_loop(NULL) )
+		;
+
+	tty_done();
+	serial_done();
+
+	return 0;
+}
+