[PATCH 2/7] libnetfs: improve the netfs_demuxer function

[Justus Winter]

Handle multiple request types as recommended by the Mach Server
Writer's Guide section 4, subsection "Handling Multiple Request
Types".  This avoids initializing the reply message in every X_server
function.  The reply message has already been properly initialized in
libports, so there is no need to call mig_reply_setup.

* libnetfs/demuxer.c (netfs_demuxer): Improve the demuxer function.
---
 libnetfs/demuxer.c |   31 ++++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/libnetfs/demuxer.c b/libnetfs/demuxer.c
index 8b6d1b2..8ef4d86 100644
--- a/libnetfs/demuxer.c
+++ b/libnetfs/demuxer.c
@@ -1,5 +1,5 @@
 /* 
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 2013 Free Software Foundation, Inc.
    Written by Michael I. Bushnell, p/BSG.
 
    This file is part of the GNU Hurd.
@@ -24,15 +24,24 @@ int
 netfs_demuxer (mach_msg_header_t *inp,
               mach_msg_header_t *outp)
 {
-  int netfs_fs_server (mach_msg_header_t *, mach_msg_header_t *);
-  int netfs_io_server (mach_msg_header_t *, mach_msg_header_t *);
-  int netfs_fsys_server (mach_msg_header_t *, mach_msg_header_t *);
-  int netfs_ifsock_server (mach_msg_header_t *, mach_msg_header_t *);
+  mig_routine_t netfs_io_server_routine (mach_msg_header_t *);
+  mig_routine_t netfs_fs_server_routine (mach_msg_header_t *);
+  mig_routine_t ports_notify_server_routine (mach_msg_header_t *);
+  mig_routine_t netfs_fsys_server_routine (mach_msg_header_t *);
+  mig_routine_t ports_interrupt_server_routine (mach_msg_header_t *);
+  mig_routine_t netfs_ifsock_server_routine (mach_msg_header_t *);
 
-  return (netfs_io_server (inp, outp)
-          || netfs_fs_server (inp, outp)
-          || ports_notify_server (inp, outp)
-          || netfs_fsys_server (inp, outp)
-          || ports_interrupt_server (inp, outp)
-          || netfs_ifsock_server (inp, outp));
+  mig_routine_t routine;
+  if ((routine = netfs_io_server_routine (inp)) ||
+      (routine = netfs_fs_server_routine (inp)) ||
+      (routine = ports_notify_server_routine (inp)) ||
+      (routine = netfs_fsys_server_routine (inp)) ||
+      (routine = ports_interrupt_server_routine (inp)) ||
+      (routine = netfs_ifsock_server_routine (inp)))
+    {
+      (*routine) (inp, outp);
+      return TRUE;
+    }
+  else
+    return FALSE;
 }
-- 
1.7.10.4