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Languguage OS 2
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Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO
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gnu
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glibc108.zip
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glibc108
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hurd
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hurdports.c
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1994-02-03
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/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <hurd.h>
#include <hurd/port.h>
static inline mach_port_t
get (const size_t idx)
{
mach_port_t result;
error_t err = HURD_PORT_USE (&_hurd_ports[idx],
__mach_port_mod_refs (__mach_task_self (),
(result = port),
MACH_PORT_RIGHT_SEND,
1));
if (err)
{
errno = err;
return MACH_PORT_NULL;
}
else
return result;
}
#define GET(type, what, idx) \
type get##what (void) { return get (INIT_PORT_##idx); }
static inline int
set (const size_t idx, mach_port_t new)
{
error_t err;
if (err = __mach_port_mod_refs (__mach_task_self (), new,
MACH_PORT_RIGHT_SEND, 1))
{
errno = EINVAL;
return -1;
}
_hurd_port_set (&_hurd_ports[idx], new);
return 0;
}
#define SET(type, what, idx) \
int set##what (type new) { return set (INIT_PORT_##idx, new); }
#define GETSET(type, what, idx) \
GET (type, what, idx) SET (type, what, idx)
GETSET (process_t, proc, PROC)
GETSET (file_t, cwdir, CWDIR)
GETSET (file_t, crdir, CRDIR)
/* setauth is nontrivial; see __setauth.c. */
GET (auth_t, auth, AUTH)