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/*
Copyright (C) 1995, 1996, 2001, 2003 Free Software Foundation, Inc.
Written by Michael I. Bushnell.
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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "ports.h"
#include <hurd/ihash.h>
#include <assert.h>
void
ports_reallocate_port (void *portstruct)
{
struct port_info *pi = portstruct;
error_t err;
int dropref = 0;
pthread_mutex_lock (&_ports_lock);
assert (pi->port_right);
err = mach_port_mod_refs (mach_task_self (), pi->port_right,
MACH_PORT_RIGHT_RECEIVE, -1);
assert_perror (err);
pthread_rwlock_wrlock (&_ports_htable_lock);
hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
pthread_rwlock_unlock (&_ports_htable_lock);
err = mach_port_allocate (mach_task_self (), MACH_PORT_RIGHT_RECEIVE,
&pi->port_right);
assert_perror (err);
if (pi->flags & PORT_HAS_SENDRIGHTS)
{
pi->flags &= ~PORT_HAS_SENDRIGHTS;
dropref = 1;
}
pi->cancel_threshold = 0;
pi->mscount = 0;
pthread_rwlock_wrlock (&_ports_htable_lock);
err = hurd_ihash_add (&_ports_htable, pi->port_right, pi);
assert_perror (err);
err = hurd_ihash_add (&pi->bucket->htable, pi->port_right, pi);
pthread_rwlock_unlock (&_ports_htable_lock);
pthread_mutex_unlock (&_ports_lock);
assert_perror (err);
/* This is an optimization. It may fail. */
mach_port_set_protected_payload (mach_task_self (), pi->port_right,
(unsigned long) pi);
err = mach_port_move_member (mach_task_self (), pi->port_right,
pi->bucket->portset);
assert_perror (err);
if (dropref)
ports_port_deref (pi);
}
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