libpager: fix receiver lookups

Previously, the receiver lookup was done manually in all the server
functions.  Use mig translator functions instead.

* libpager/mig-decls.h: New file.
* libpager/mig-mutate.h: Likewise.
* libpager/Makefile (MIGSFLAGS): Include mig-mutate.h.
* libpager/chg-compl.c: Fix receiver lookups.
* libpager/data-request.c: Likewise.
* libpager/data-return.c: Likewise.
* libpager/data-unlock.c: Likewise.
* libpager/lock-completed.c: Likewise.
* libpager/object-init.c: Likewise.
* libpager/object-terminate.c: Likewise.
* libpager/stubs.c: Likewise.
* libpager/seqnos.c (_pager_update_seqno): Move the actual
functionality...
(_pager_update_seqno_p): ... into a new function that can be called
with a pointer to struct pager.
* libpager/priv.h (_pager_update_seqno_p): New declaration.

1 files changed, 42 insertions, 0 deletions

diff --git a/libpager/mig-decls.h b/libpager/mig-decls.h
new file mode 100644
index 00000000..0c7b402f
--- /dev/null
+++ b/libpager/mig-decls.h
@@ -0,0 +1,42 @@
+/*
+   Copyright (C) 2014 Free Software Foundation, Inc.
+   Written by Justus Winter.
+
+   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.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef __LIBPAGER_MIG_DECLS_H__
+#define __LIBPAGER_MIG_DECLS_H__
+
+#include "priv.h"
+
+typedef struct pager *pager_t;
+
+/* Called by server stub functions.  */
+
+static inline struct pager * __attribute__ ((unused))
+begin_using_pager (mach_port_t port)
+{
+  return ports_lookup_port (0, port, _pager_class);
+}
+
+static inline void __attribute__ ((unused))
+end_using_pager (struct pager *p)
+{
+  if (p)
+    ports_port_deref (p);
+}
+
+#endif /* __LIBPAGER_MIG_DECLS_H__ */