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/*
Copyright (C) 1994, 1995, 1996, 1997 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
your option) any later version.
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"
struct trivfs_protid *
trivfs_begin_using_protid (mach_port_t port)
{
if (trivfs_protid_nportclasses + trivfs_num_dynamic_protid_port_classes> 1)
{
struct port_info *pi = ports_lookup_port (0, port, 0);
int i;
for (i = 0; i < trivfs_protid_nportclasses; i++)
if (pi->class == trivfs_protid_portclasses[i])
return (struct trivfs_protid *) pi;
for (i = 0; i < trivfs_num_dynamic_protid_port_classes; i++)
if (pi->class == trivfs_dynamic_protid_port_classes[i])
return (struct trivfs_protid *) pi;
ports_port_deref ((void *)port);
return 0;
}
else if (trivfs_protid_nportclasses == 1)
return ports_lookup_port (0, port, trivfs_protid_portclasses[0]);
else
return ports_lookup_port (0, port, trivfs_dynamic_protid_port_classes[0]);
}
void
trivfs_end_using_protid (struct trivfs_protid *cred)
{
if (cred)
ports_port_deref (cred);
}
struct trivfs_control *
trivfs_begin_using_control (mach_port_t port)
{
if (trivfs_cntl_nportclasses + trivfs_num_dynamic_control_port_classes > 1)
{
struct port_info *pi = ports_lookup_port (0, port, 0);
int i;
for (i = 0; i < trivfs_cntl_nportclasses; i++)
if (pi->class == trivfs_cntl_portclasses[i])
return (struct trivfs_control *) pi;
for (i = 0; i < trivfs_num_dynamic_control_port_classes; i++)
if (pi->class == trivfs_dynamic_control_port_classes[i])
return (struct trivfs_control *) pi;
ports_port_deref ((void *)port);
return 0;
}
else if (trivfs_cntl_nportclasses == 1)
return ports_lookup_port (0, port, trivfs_cntl_portclasses[0]);
else
return ports_lookup_port (0, port, trivfs_dynamic_control_port_classes[0]);
}
void
trivfs_end_using_control (struct trivfs_control *cred)
{
if (cred)
ports_port_deref (cred);
}
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