include/sys/select.h

   1 /*      $NetBSD: select.h,v 1.36 2009/11/11 09:48:51 rmind 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_SELECT_H_
  35 #define _SYS_SELECT_H_
  36
  37 #include <sys/cdefs.h>
  38 #include <sys/featuretest.h>
  39 #include <sys/fd_set.h>
  40
  41 #ifdef _KERNEL
  42 #include <sys/selinfo.h>                /* for struct selinfo */
  43 #include <sys/signal.h>                 /* for sigset_t */
  44
  45 struct lwp;
  46 struct proc;
  47 struct timespec;
  48 struct cpu_info;
  49 struct socket;
  50
  51 int     selcommon(register_t *, int, fd_set *, fd_set *, fd_set *,
  52     struct timespec *, sigset_t *);
  53 void    selrecord(struct lwp *selector, struct selinfo *);
  54 void    selnotify(struct selinfo *, int, long);
  55 void    selsysinit(struct cpu_info *);
  56 void    selinit(struct selinfo *);
  57 void    seldestroy(struct selinfo *);
  58 int     pollsock(struct socket *, const struct timespec *, int);
  59
  60 #else /* _KERNEL */
  61
  62 #include <sys/sigtypes.h>
  63 #include <time.h>
  64
  65 __BEGIN_DECLS
  66 #ifndef __LIBC12_SOURCE__
  67 #ifndef __minix
  68 int     pselect(int, fd_set * __restrict, fd_set * __restrict,
  69     fd_set * __restrict, const struct timespec * __restrict,
  70     const sigset_t * __restrict) __RENAME(__pselect50);
  71 #endif /* !__minix */
  72 int     select(int, fd_set * __restrict, fd_set * __restrict,
  73     fd_set * __restrict, struct timeval * __restrict) __RENAME(__select50);
  74 #endif /* __LIBC12_SOURCE__ */
  75 __END_DECLS
  76 #endif /* _KERNEL */
  77
  78 #ifdef _MINIX
  79 /* possible select() operation types; read, write, errors */
  80 /* (FS/driver internal use only) */
  81 #define SEL_RD          (1 << 0)
  82 #define SEL_WR          (1 << 1)
  83 #define SEL_ERR         (1 << 2)
  84 #define SEL_NOTIFY      (1 << 3) /* not a real select operation */
  85 #endif
  86
  87 #endif /* !_SYS_SELECT_H_ */