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/* $arla: /afs/stacken.kth.se/src/SourceRepository/arla/lwp/preempt.h,v 1.3 2002/06/02 11:59:54 lha Exp $ */
/* $arla: /afs/stacken.kth.se/src/SourceRepository/arla/lwp/preempt.h,v $ */
#if !defined(lint) && !defined(LOCORE) && defined(RCS_HDRS)
static char *rcsidpreempt = "$arla: /afs/stacken.kth.se/src/SourceRepository/arla/lwp/preempt.h,v 1.3 2002/06/02 11:59:54 lha Exp $";
#endif
/*
****************************************************************************
* Copyright IBM Corporation 1988, 1989 - All Rights Reserved *
* *
* Permission to use, copy, modify, and distribute this software and its *
* documentation for any purpose and without fee is hereby granted, *
* provided that the above copyright notice appear in all copies and *
* that both that copyright notice and this permission notice appear in *
* supporting documentation, and that the name of IBM not be used in *
* advertising or publicity pertaining to distribution of the software *
* without specific, written prior permission. *
* *
* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL *
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL IBM *
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY *
* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER *
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING *
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. *
****************************************************************************
*/
/*******************************************************************\
* *
* Information Technology Center *
* Carnegie-Mellon University *
* *
* Bradley White and M. Satyanarayanan *
\*******************************************************************/
#define PRE_PreemptMe() lwp_cpptr->level = 0
#define PRE_BeginCritical() lwp_cpptr->level++
#define PRE_EndCritical() lwp_cpptr->level--
#define DEFAULTSLICE 10
int PRE_InitPreempt(struct timeval *);
int PRE_EndPreempt(void);
extern sig_atomic_t PRE_Block;
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