zfs/include/sys/signal.h

51 lines
1.7 KiB
C

/*
* This file is part of the SPL: Solaris Porting Layer.
*
* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
* Produced at Lawrence Livermore National Laboratory
* Written by:
* Brian Behlendorf <behlendorf1@llnl.gov>,
* Herb Wartens <wartens2@llnl.gov>,
* Jim Garlick <garlick@llnl.gov>
* UCRL-CODE-235197
*
* This 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 of the License, or
* (at your option) any later version.
*
* This 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _SPL_SIGNAL_H
#define _SPL_SIGNAL_H
#define FORREAL 0 /* Usual side-effects */
#define JUSTLOOKING 1 /* Don't stop the process */
/* The "why" argument indicates the allowable side-effects of the call:
*
* FORREAL: Extract the next pending signal from p_sig into p_cursig;
* stop the process if a stop has been requested or if a traced signal
* is pending.
*
* JUSTLOOKING: Don't stop the process, just indicate whether or not
* a signal might be pending (FORREAL is needed to tell for sure).
*/
static __inline__ int
issig(int why)
{
ASSERT(why == FORREAL || why == JUSTLOOKING);
return signal_pending(current);
}
#endif /* SPL_SIGNAL_H */