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/* Locks to inhibit termination races for 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"
/* Prevent this memory object from being terminated. */
/* Must be called with interlock held. */
void
_pager_block_termination (struct pager *p)
{
p->noterm++;
}
/* Allow termination again. */
/* Must be called with interlock held. */
void
_pager_allow_termination (struct pager *p)
{
if (!--p->noterm && p->termwaiting)
condition_broadcast (&p->wakeup);
}
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