1 files changed, 108 insertions, 0 deletions
diff --git a/gnuradio-runtime/lib/gr_preferences.cc b/gnuradio-runtime/lib/gr_preferences.cc
new file mode 100644
index 0000000000..a0f5616603
--- /dev/null
+++ b/gnuradio-runtime/lib/gr_preferences.cc
@@ -0,0 +1,108 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2003,2010,2011 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gr_preferences.h>
+#include <gr_sys_paths.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/path.hpp>
+namespace fs = boost::filesystem;
+
+/*
+ * The simplest thing that could possibly work:
+ *  the key is the filename; the value is the file contents.
+ */
+
+static const char *
+pathname (const char *key)
+{
+  static fs::path path;
+  path = fs::path(gr_appdata_path()) / ".gnuradio" / "prefs" / key;
+  return path.string().c_str();
+}
+
+static void
+ensure_dir_path ()
+{
+  fs::path path = fs::path(gr_appdata_path()) / ".gnuradio";
+  if (!fs::is_directory(path)) fs::create_directory(path);
+
+  path = path / "prefs";
+  if (!fs::is_directory(path)) fs::create_directory(path);
+}
+
+const char *
+gr_preferences::get (const char *key)
+{
+  static char buf[1024];
+
+  FILE 	*fp = fopen (pathname (key), "r");
+  if (fp == 0) {
+    perror (pathname (key));
+    return 0;
+  }
+
+  memset (buf, 0, sizeof (buf));
+  size_t ret = fread (buf, 1, sizeof (buf) - 1, fp);
+  if(ret == 0) {
+    if(ferror(fp) != 0) {
+      perror (pathname (key));
+      fclose (fp);
+      return 0;
+    }
+  }
+  fclose (fp);
+  return buf;
+}
+
+void
+gr_preferences::set (const char *key, const char *value)
+{
+  ensure_dir_path ();
+
+  FILE *fp = fopen (pathname (key), "w");
+  if (fp == 0){
+    perror (pathname (key));
+    return;
+  }
+
+  size_t ret = fwrite (value, 1, strlen (value), fp);
+  if(ret == 0) {
+    if(ferror(fp) != 0) {
+      perror (pathname (key));
+      fclose (fp);
+      return;
+    }
+  }
+  fclose (fp);
+};