1 files changed, 46 insertions, 0 deletions

diff --git a/src/include/gnunet_io_lib.h b/src/include/gnunet_io_lib.h
new file mode 100644
index 000000000..3d04a2317
--- /dev/null
+++ b/src/include/gnunet_io_lib.h
@@ -0,0 +1,46 @@
+/*
+     This file is part of GNUnet.
+     (C) 2009 Christian Grothoff (and other contributing authors)
+
+     GNUnet 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, or (at your
+     option) any later version.
+
+     GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file include/gnunet_io_lib.h
+ * @brief Helper functions for abstract IO handles
+ * @author Nils Durner
+ */
+
+#ifndef IO_HANDLE_H_
+#define IO_HANDLE_H_
+
+struct GNUNET_IO_Handle;
+
+/**
+ * Checks whether a handle is invalid
+ * @param h handle to check
+ * @return GNUNET_YES if invalid, GNUNET_NO if valid
+ */
+int GNUNET_IO_handle_invalid (const struct GNUNET_IO_Handle *h);
+
+/**
+ * Mark a handle as invalid
+ * @param h file handle
+ */
+void GNUNET_IO_handle_invalidate (struct GNUNET_IO_Handle *h);
+
+
+#endif /* IO_HANDLE_H_ */