+ g_rmdir (dir.c_str());
+}
+
+string
+tmp_writable_directory (const char* domain, const string& prefix)
+{
+ std::string tmp_dir = Glib::build_filename (g_get_tmp_dir(), domain);
+ std::string dir_name;
+ std::string new_test_dir;
+ do {
+ ostringstream oss;
+ oss << prefix;
+ oss << g_random_int ();
+ dir_name = oss.str();
+ new_test_dir = Glib::build_filename (tmp_dir, dir_name);
+ if (Glib::file_test (new_test_dir, Glib::FILE_TEST_EXISTS)) continue;
+ } while (g_mkdir_with_parents (new_test_dir.c_str(), 0755) != 0);
+ return new_test_dir;
+}
+
+int
+toggle_file_existence (string const & path)
+{
+ if (Glib::file_test (path, Glib::FILE_TEST_IS_REGULAR)) {
+ return g_unlink (path.c_str());
+ }
+
+ PBD::ScopedFileDescriptor fd = g_open (path.c_str(), O_CREAT|O_TRUNC|O_RDWR, 0666);
+ return !((int) fd >= 0);