xref: /xnu-8020.121.3/bsd/sys/_select.h (revision fdd8201d7b966f0c3ea610489d29bd841d358941)
1*fdd8201dSApple OSS Distributions /*
2*fdd8201dSApple OSS Distributions  * Copyright (c) 2005, 2007 Apple Inc. All rights reserved.
3*fdd8201dSApple OSS Distributions  *
4*fdd8201dSApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*fdd8201dSApple OSS Distributions  *
6*fdd8201dSApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*fdd8201dSApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*fdd8201dSApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*fdd8201dSApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*fdd8201dSApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*fdd8201dSApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*fdd8201dSApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*fdd8201dSApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*fdd8201dSApple OSS Distributions  *
15*fdd8201dSApple OSS Distributions  * Please obtain a copy of the License at
16*fdd8201dSApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*fdd8201dSApple OSS Distributions  *
18*fdd8201dSApple OSS Distributions  * The Original Code and all software distributed under the License are
19*fdd8201dSApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*fdd8201dSApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*fdd8201dSApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*fdd8201dSApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*fdd8201dSApple OSS Distributions  * Please see the License for the specific language governing rights and
24*fdd8201dSApple OSS Distributions  * limitations under the License.
25*fdd8201dSApple OSS Distributions  *
26*fdd8201dSApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*fdd8201dSApple OSS Distributions  */
28*fdd8201dSApple OSS Distributions 
29*fdd8201dSApple OSS Distributions /*
30*fdd8201dSApple OSS Distributions  * This is called from sys/select.h and sys/time.h for the common prototype
31*fdd8201dSApple OSS Distributions  * of select().  Setting _DARWIN_C_SOURCE or _DARWIN_UNLIMITED_SELECT uses
32*fdd8201dSApple OSS Distributions  * the version of select() that does not place a limit on the first argument
33*fdd8201dSApple OSS Distributions  * (nfds).  In the UNIX conformance case, values of nfds greater than
34*fdd8201dSApple OSS Distributions  * FD_SETSIZE will return an error of EINVAL.
35*fdd8201dSApple OSS Distributions  */
36*fdd8201dSApple OSS Distributions #ifndef _SYS__SELECT_H_
37*fdd8201dSApple OSS Distributions #define _SYS__SELECT_H_
38*fdd8201dSApple OSS Distributions 
39*fdd8201dSApple OSS Distributions #include <sys/cdefs.h> /* __DARWIN_EXTSN_C, __DARWIN_1050, __DARWIN_ALIAS_C */
40*fdd8201dSApple OSS Distributions #include <sys/_types/_fd_def.h> /* fd_set */
41*fdd8201dSApple OSS Distributions #include <sys/_types/_timeval.h> /* struct timeval */
42*fdd8201dSApple OSS Distributions 
43*fdd8201dSApple OSS Distributions int      select(int, fd_set * __restrict, fd_set * __restrict,
44*fdd8201dSApple OSS Distributions     fd_set * __restrict, struct timeval * __restrict)
45*fdd8201dSApple OSS Distributions 
46*fdd8201dSApple OSS Distributions #if defined(_DARWIN_C_SOURCE) || defined(_DARWIN_UNLIMITED_SELECT)
47*fdd8201dSApple OSS Distributions __DARWIN_EXTSN_C(select)
48*fdd8201dSApple OSS Distributions #else /* !_DARWIN_C_SOURCE && !_DARWIN_UNLIMITED_SELECT */
49*fdd8201dSApple OSS Distributions #  if defined(__LP64__) && !__DARWIN_NON_CANCELABLE
50*fdd8201dSApple OSS Distributions __DARWIN_1050(select)
51*fdd8201dSApple OSS Distributions #  else /* !__LP64__ || __DARWIN_NON_CANCELABLE */
52*fdd8201dSApple OSS Distributions __DARWIN_ALIAS_C(select)
53*fdd8201dSApple OSS Distributions #  endif /* __LP64__ && !__DARWIN_NON_CANCELABLE */
54*fdd8201dSApple OSS Distributions #endif /* _DARWIN_C_SOURCE || _DARWIN_UNLIMITED_SELECT */
55*fdd8201dSApple OSS Distributions ;
56*fdd8201dSApple OSS Distributions 
57*fdd8201dSApple OSS Distributions #endif /* !_SYS__SELECT_H_ */
58