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-rw-r--r--libdiskfs/io-stubs.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/libdiskfs/io-stubs.c b/libdiskfs/io-stubs.c
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+/*
+ Copyright (C) 1994 Free Software Foundation
+
+ 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "priv.h"
+
+/* Unimplemented stubs. */
+
+/* Implement io_readsleep as described in <hurd/io.defs>
+ Semantics of ordinary files say this shouldn't happen, because
+ we never set use_read_size in the shared data. */
+error_t
+S_io_readsleep (struct protid *cred)
+{
+ if (!cred)
+ return EOPNOTSUPP;
+
+ return 0;
+}
+
+/* Implement io_eofnotify as described in <hurd/io.defs>.
+ We don't use this feature. */
+error_t
+S_io_eofnotify (struct protid *cred)
+{
+ if (!cred)
+ return EOPNOTSUPP;
+
+ return 0;
+}
+
+/* Implement io_sigio as described in <hurd/io.defs>.
+ We do this (in theory) but async IO is implemented here yet. */
+error_t
+S_io_sigio (struct protid *cred)
+{
+ if (!cred)
+ return EOPNOTSUPP;
+
+ return 0;
+}