Replace autotools with meson

To introduce much simpler build configuration which is also easier to
maintain.

src/misc.c

@@ -0,0 +1,65 @@
+/*
+ * tio - a simple TTY terminal I/O application
+ *
+ * Copyright (c) 2014-2017  Martin Lund
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * 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 a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sys/time.h>
+#include "error.h"
+#include "print.h"
+
+// "YYYY-MM-DDThh:mm:ss.sss" (ISO-8601 format).
+#define TIME_STRING_SIZE 24
+
+char * current_time(void)
+{
+    static char time_string[TIME_STRING_SIZE];
+    struct tm *tmp;
+
+    struct timeval tv;
+    gettimeofday(&tv,NULL);
+
+    tmp = localtime(&tv.tv_sec);
+    if (tmp == NULL)
+    {
+        error_printf("Retrieving local time failed");
+        exit(EXIT_FAILURE);
+    }
+
+    size_t len = strftime(time_string, sizeof(time_string), "%Y-%m-%dT%H:%M:%S", tmp);
+    if (len) {
+        len = snprintf(time_string + len, TIME_STRING_SIZE - len, ".%03ld", (long)tv.tv_usec / 1000);
+    }
+
+    return (len < TIME_STRING_SIZE) ? time_string : NULL;
+}
+
+void delay(long ms)
+{
+    struct timespec ts;
+
+    ts.tv_sec = ms / 1000;
+    ts.tv_nsec = (ms % 1000) * 1000000;
+
+    nanosleep(&ts, NULL);
+}