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/*
Copyright (C) 1994, 1995, 1996 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"
/* Clean pointers in a struct trivfs_protid when its last reference vanishes
before it's freed. */
void
trivfs_clean_protid (void *arg)
{
struct trivfs_protid *cred = arg;
struct trivfs_control *cntl = cred->po->cntl;
if (trivfs_protid_destroy_hook && cred->realnode != MACH_PORT_NULL)
/* Allow the user to clean up; If the realnode field is null, then CRED
wasn't initialized to the point of needing user cleanup. */
(*trivfs_protid_destroy_hook) (cred);
/* If we hold the only reference to the peropen, try to get rid of it. */
if (trivfs_peropen_destroy_hook)
{
if (refcount_deref (&cred->po->refcnt) == 0)
{
/* Reacquire a reference while we call the hook. */
refcount_unsafe_ref (&cred->po->refcnt);
(*trivfs_peropen_destroy_hook) (cred->po);
if (refcount_deref (&cred->po->refcnt) == 0)
{
ports_port_deref (cntl);
free (cred->po);
}
}
}
else
if (refcount_deref (&cred->po->refcnt) == 0)
{
ports_port_deref (cntl);
free (cred->po);
}
iohelp_free_iouser (cred->user);
if (cred->realnode != MACH_PORT_NULL)
mach_port_deallocate (mach_task_self (), cred->realnode);
}
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