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/* Pager shutdown in pager library
Copyright (C) 1994 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"
#include <mach/notify.h>
/* Shutdown pager P and prevent any future paging activity on it. */
void
pager_shutdown (struct pager *p)
{
mach_port_t port;
/* Sync and flush pager */
pager_sync (p, 1);
pager_flush (p, 1);
mutex_lock (&p->interlock);
p->pager_state = SHUTDOWN;
/* Cancel the pending no-senders notification. */
mach_port_request_notification (mach_task_self (), p->port.port,
MACH_NOTIFY_NO_SENDERS, 0, MACH_PORT_NULL,
MACH_MSG_TYPE_MAKE_SEND_ONCE, &port);
mutex_unlock (&p->interlock);
if (port)
{
done_with_port (p); /* pretend send right has died */
mach_port_deallocate (mach_task_self (), port);
}
}
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