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_ */