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/* Translation functions for mig.
Copyright (C) 2013 Free Software Foundation, Inc.
Written by Justus Winter <4winter@informatik.uni-hamburg.de>
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 __MIG_DECLS_H__
#define __MIG_DECLS_H__
#include "proc.h"
/* Find the process corresponding to a given request port. */
static inline struct proc * __attribute__ ((unused))
begin_using_proc_port (mach_port_t port)
{
struct proc *p;
p = ports_lookup_port (proc_bucket, port, proc_class);
if (p && p->p_dead)
ports_port_deref (p);
return (!p || p->p_dead) ? NULL : p;
}
static inline struct proc * __attribute__ ((unused))
begin_using_proc_payload (unsigned long payload)
{
struct proc *p;
p = ports_lookup_payload (proc_bucket, payload, proc_class);
if (p && p->p_dead)
ports_port_deref (p);
return (!p || p->p_dead) ? 0 : p;
}
static inline void __attribute__ ((unused))
end_using_proc (struct proc *p)
{
if (p)
ports_port_deref (p);
}
typedef struct exc* exc_t;
static inline exc_t __attribute__ ((unused))
begin_using_exc_port (mach_port_t port)
{
return ports_lookup_port (NULL, port, exc_class);
}
static inline exc_t __attribute__ ((unused))
begin_using_exc_payload (unsigned long payload)
{
return ports_lookup_payload (NULL, payload, exc_class);
}
static inline void __attribute__ ((unused))
end_using_exc (exc_t exc)
{
if (exc != NULL)
ports_port_deref (exc);
}
#endif
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