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    1: /*      $OpenBSD: selinfo.h,v 1.3 2007/07/25 23:11:53 art Exp $      */
    2: 
    3: /*-
    4:  * Copyright (c) 1992, 1993
    5:  *      The Regents of the University of California.  All rights reserved.
    6:  *
    7:  * Redistribution and use in source and binary forms, with or without
    8:  * modification, are permitted provided that the following conditions
    9:  * are met:
   10:  * 1. Redistributions of source code must retain the above copyright
   11:  *    notice, this list of conditions and the following disclaimer.
   12:  * 2. Redistributions in binary form must reproduce the above copyright
   13:  *    notice, this list of conditions and the following disclaimer in the
   14:  *    documentation and/or other materials provided with the distribution.
   15:  * 3. Neither the name of the University nor the names of its contributors
   16:  *    may be used to endorse or promote products derived from this software
   17:  *    without specific prior written permission.
   18:  *
   19:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29:  * SUCH DAMAGE.
   30:  *
   31:  *      @(#)select.h 8.2 (Berkeley) 1/4/94
   32:  */
   33: 
   34: #ifndef _SYS_SELINFO_H_
   35: #define _SYS_SELINFO_H_
   36: 
   37: #include <sys/event.h>                  /* for struct klist */
   38: 
   39: /*
   40:  * Used to maintain information about processes that wish to be
   41:  * notified when I/O becomes possible.
   42:  */
   43: struct selinfo {
   44:         pid_t  si_selpid;       /* process to be notified */
   45:         struct klist si_note;  /* kernel note list */
   46:         short  si_flags;        /* see below */
   47: };
   48: #define SI_COLL 0x0001          /* collision occurred */
   49: 
   50: #ifdef _KERNEL
   51: struct proc;
   52: 
   53: void    selrecord(struct proc *selector, struct selinfo *);
   54: void    selwakeup(struct selinfo *);
   55: #endif
   56: 
   57: #endif /* !_SYS_SELINFO_H_ */