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Diffstat (limited to 'libmachdevdde/mig-decls.h')
-rw-r--r-- | libmachdevdde/mig-decls.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/libmachdevdde/mig-decls.h b/libmachdevdde/mig-decls.h new file mode 100644 index 000000000..8302029d2 --- /dev/null +++ b/libmachdevdde/mig-decls.h @@ -0,0 +1,50 @@ +/* + 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 __LIBMACHDEV_MIG_DECLS_H__ +#define __LIBMACHDEV_MIG_DECLS_H__ + +#include <hurd/ports.h> +#include "dev_hdr.h" + +extern struct port_bucket *device_bucket; +extern struct port_class *dev_class; + +/* Called by server stub functions. */ + +static inline struct mach_device * __attribute__ ((unused)) +begin_using_device_port (mach_port_t port) +{ + return ports_lookup_port (device_bucket, port, dev_class); +} + +static inline struct mach_device * __attribute__ ((unused)) +begin_using_device_payload (unsigned long payload) +{ + return ports_lookup_payload (device_bucket, payload, dev_class); +} + +static inline void __attribute__ ((unused)) +end_using_device (struct mach_device *p) +{ + if (p) + ports_port_deref (p); +} + +#endif /* __LIBMACHDEV_MIG_DECLS_H__ */ |