xref: /xnu-12377.81.4/bsd/sys/_select.h (revision 043036a2b3718f7f0be807e2870f8f47d3fa0796)
1*043036a2SApple OSS Distributions /*
2*043036a2SApple OSS Distributions  * Copyright (c) 2005, 2007 Apple Inc. All rights reserved.
3*043036a2SApple OSS Distributions  *
4*043036a2SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*043036a2SApple OSS Distributions  *
6*043036a2SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*043036a2SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*043036a2SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*043036a2SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*043036a2SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*043036a2SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*043036a2SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*043036a2SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*043036a2SApple OSS Distributions  *
15*043036a2SApple OSS Distributions  * Please obtain a copy of the License at
16*043036a2SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*043036a2SApple OSS Distributions  *
18*043036a2SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*043036a2SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*043036a2SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*043036a2SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*043036a2SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*043036a2SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*043036a2SApple OSS Distributions  * limitations under the License.
25*043036a2SApple OSS Distributions  *
26*043036a2SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*043036a2SApple OSS Distributions  */
28*043036a2SApple OSS Distributions 
29*043036a2SApple OSS Distributions /*
30*043036a2SApple OSS Distributions  * This is called from sys/select.h and sys/time.h for the common prototype
31*043036a2SApple OSS Distributions  * of select().  Setting _DARWIN_C_SOURCE or _DARWIN_UNLIMITED_SELECT uses
32*043036a2SApple OSS Distributions  * the version of select() that does not place a limit on the first argument
33*043036a2SApple OSS Distributions  * (nfds).  In the UNIX conformance case, values of nfds greater than
34*043036a2SApple OSS Distributions  * FD_SETSIZE will return an error of EINVAL.
35*043036a2SApple OSS Distributions  */
36*043036a2SApple OSS Distributions #ifndef _SYS__SELECT_H_
37*043036a2SApple OSS Distributions #define _SYS__SELECT_H_
38*043036a2SApple OSS Distributions 
39*043036a2SApple OSS Distributions #include <sys/cdefs.h> /* __DARWIN_EXTSN_C, __DARWIN_1050, __DARWIN_ALIAS_C */
40*043036a2SApple OSS Distributions #include <sys/_types/_fd_def.h> /* fd_set */
41*043036a2SApple OSS Distributions #include <sys/_types/_timeval.h> /* struct timeval */
42*043036a2SApple OSS Distributions 
43*043036a2SApple OSS Distributions int      select(int, fd_set * __restrict, fd_set * __restrict,
44*043036a2SApple OSS Distributions     fd_set * __restrict, struct timeval * __restrict)
45*043036a2SApple OSS Distributions 
46*043036a2SApple OSS Distributions #if defined(_DARWIN_C_SOURCE) || defined(_DARWIN_UNLIMITED_SELECT)
47*043036a2SApple OSS Distributions __DARWIN_EXTSN_C(select)
48*043036a2SApple OSS Distributions #else /* !_DARWIN_C_SOURCE && !_DARWIN_UNLIMITED_SELECT */
49*043036a2SApple OSS Distributions #  if defined(__LP64__) && !__DARWIN_NON_CANCELABLE
50*043036a2SApple OSS Distributions __DARWIN_1050(select)
51*043036a2SApple OSS Distributions #  else /* !__LP64__ || __DARWIN_NON_CANCELABLE */
52*043036a2SApple OSS Distributions __DARWIN_ALIAS_C(select)
53*043036a2SApple OSS Distributions #  endif /* __LP64__ && !__DARWIN_NON_CANCELABLE */
54*043036a2SApple OSS Distributions #endif /* _DARWIN_C_SOURCE || _DARWIN_UNLIMITED_SELECT */
55*043036a2SApple OSS Distributions ;
56*043036a2SApple OSS Distributions 
57*043036a2SApple OSS Distributions #endif /* !_SYS__SELECT_H_ */
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