bsd/sys/_select.h

   1 /*
   2  * Copyright (c) 2005, 2007 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 /*
  30  * This is called from sys/select.h and sys/time.h for the common prototype
  31  * of select().  Setting _DARWIN_C_SOURCE or _DARWIN_UNLIMITED_SELECT uses
  32  * the version of select() that does not place a limit on the first argument
  33  * (nfds).  In the UNIX conformance case, values of nfds greater than
  34  * FD_SETSIZE will return an error of EINVAL.
  35  */
  36 #ifndef _SYS__SELECT_H_
  37 #define _SYS__SELECT_H_
  38
  39 #include <sys/cdefs.h> /* __DARWIN_EXTSN_C, __DARWIN_1050, __DARWIN_ALIAS_C */
  40 #include <sys/_types/_fd_def.h> /* fd_set */
  41 #include <sys/_types/_timeval.h> /* struct timeval */
  42
  43 int      select(int, fd_set * __restrict, fd_set * __restrict,
  44     fd_set * __restrict, struct timeval * __restrict)
  45
  46 #if defined(_DARWIN_C_SOURCE) || defined(_DARWIN_UNLIMITED_SELECT)
  47 __DARWIN_EXTSN_C(select)
  48 #else /* !_DARWIN_C_SOURCE && !_DARWIN_UNLIMITED_SELECT */
  49 #  if defined(__LP64__) && !__DARWIN_NON_CANCELABLE
  50 __DARWIN_1050(select)
  51 #  else /* !__LP64__ || __DARWIN_NON_CANCELABLE */
  52 __DARWIN_ALIAS_C(select)
  53 #  endif /* __LP64__ && !__DARWIN_NON_CANCELABLE */
  54 #endif /* _DARWIN_C_SOURCE || _DARWIN_UNLIMITED_SELECT */
  55 ;
  56
  57 #endif /* !_SYS__SELECT_H_ */