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/* Demuxer for pager library
Copyright (C) 1994, 1995, 2002 Free Software Foundation
This program 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
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "priv.h"
#include "memory_object_S.h"
#include "notify_S.h"
/* Demultiplex a single message directed at a pager port; INP is the
message received; fill OUTP with the reply. */
int
pager_demuxer (mach_msg_header_t *inp,
mach_msg_header_t *outp)
{
extern int _pager_seqnos_memory_object_server (mach_msg_header_t *inp,
mach_msg_header_t *outp);
extern int _pager_seqnos_notify_server (mach_msg_header_t *inp,
mach_msg_header_t *outp);
int result = _pager_seqnos_memory_object_server (inp, outp)
|| _pager_seqnos_notify_server (inp, outp);
if (!result)
{
struct pager *p;
p = ports_lookup_port (0, inp->msgh_remote_port, _pager_class);
if (p)
{
/* Synchronize our bookkeeping of the port's seqno with
the one consumed by this bogus message. */
mutex_lock (&p->interlock);
_pager_wait_for_seqno (p, inp->msgh_seqno);
_pager_release_seqno (p, inp->msgh_seqno);
mutex_unlock (&p->interlock);
ports_port_deref (p);
}
}
return result;
}
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