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-rw-r--r--libtrivfs/io-select.c39
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diff --git a/libtrivfs/io-select.c b/libtrivfs/io-select.c
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+/* Stub io_select RPC for trivfs library.
+ Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+
+This file is part of the GNU Hurd.
+
+The GNU Hurd 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.
+
+The GNU Hurd 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 the GNU Hurd; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Written by Michael I. Bushnell. */
+
+#include "priv.h"
+#include "io_S.h"
+#include <assert.h>
+
+kern_return_t
+trivfs_S_io_select (struct trivfs_protid *cred,
+ mach_port_t reply,
+ mach_msg_type_name_t replytype,
+ int *seltype)
+{
+ if (!cred)
+ return EOPNOTSUPP;
+ if (*seltype & (SELECT_READ|SELECT_URG))
+ assert (!trivfs_support_read);
+ if (*seltype & (SELECT_WRITE|SELECT_URG))
+ assert (!trivfs_support_write);
+ return EOPNOTSUPP;
+}