xref: /xnu-8019.80.24/bsd/sys/_select.h (revision a325d9c4a84054e40bbe985afedcb50ab80993ea)
1*a325d9c4SApple OSS Distributions /*
2*a325d9c4SApple OSS Distributions  * Copyright (c) 2005, 2007 Apple Inc. All rights reserved.
3*a325d9c4SApple OSS Distributions  *
4*a325d9c4SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*a325d9c4SApple OSS Distributions  *
6*a325d9c4SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*a325d9c4SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*a325d9c4SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*a325d9c4SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*a325d9c4SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*a325d9c4SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*a325d9c4SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*a325d9c4SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*a325d9c4SApple OSS Distributions  *
15*a325d9c4SApple OSS Distributions  * Please obtain a copy of the License at
16*a325d9c4SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*a325d9c4SApple OSS Distributions  *
18*a325d9c4SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*a325d9c4SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*a325d9c4SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*a325d9c4SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*a325d9c4SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*a325d9c4SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*a325d9c4SApple OSS Distributions  * limitations under the License.
25*a325d9c4SApple OSS Distributions  *
26*a325d9c4SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*a325d9c4SApple OSS Distributions  */
28*a325d9c4SApple OSS Distributions 
29*a325d9c4SApple OSS Distributions /*
30*a325d9c4SApple OSS Distributions  * This is called from sys/select.h and sys/time.h for the common prototype
31*a325d9c4SApple OSS Distributions  * of select().  Setting _DARWIN_C_SOURCE or _DARWIN_UNLIMITED_SELECT uses
32*a325d9c4SApple OSS Distributions  * the version of select() that does not place a limit on the first argument
33*a325d9c4SApple OSS Distributions  * (nfds).  In the UNIX conformance case, values of nfds greater than
34*a325d9c4SApple OSS Distributions  * FD_SETSIZE will return an error of EINVAL.
35*a325d9c4SApple OSS Distributions  */
36*a325d9c4SApple OSS Distributions #ifndef _SYS__SELECT_H_
37*a325d9c4SApple OSS Distributions #define _SYS__SELECT_H_
38*a325d9c4SApple OSS Distributions 
39*a325d9c4SApple OSS Distributions #include <sys/cdefs.h> /* __DARWIN_EXTSN_C, __DARWIN_1050, __DARWIN_ALIAS_C */
40*a325d9c4SApple OSS Distributions #include <sys/_types/_fd_def.h> /* fd_set */
41*a325d9c4SApple OSS Distributions #include <sys/_types/_timeval.h> /* struct timeval */
42*a325d9c4SApple OSS Distributions 
43*a325d9c4SApple OSS Distributions int      select(int, fd_set * __restrict, fd_set * __restrict,
44*a325d9c4SApple OSS Distributions     fd_set * __restrict, struct timeval * __restrict)
45*a325d9c4SApple OSS Distributions 
46*a325d9c4SApple OSS Distributions #if defined(_DARWIN_C_SOURCE) || defined(_DARWIN_UNLIMITED_SELECT)
47*a325d9c4SApple OSS Distributions __DARWIN_EXTSN_C(select)
48*a325d9c4SApple OSS Distributions #else /* !_DARWIN_C_SOURCE && !_DARWIN_UNLIMITED_SELECT */
49*a325d9c4SApple OSS Distributions #  if defined(__LP64__) && !__DARWIN_NON_CANCELABLE
50*a325d9c4SApple OSS Distributions __DARWIN_1050(select)
51*a325d9c4SApple OSS Distributions #  else /* !__LP64__ || __DARWIN_NON_CANCELABLE */
52*a325d9c4SApple OSS Distributions __DARWIN_ALIAS_C(select)
53*a325d9c4SApple OSS Distributions #  endif /* __LP64__ && !__DARWIN_NON_CANCELABLE */
54*a325d9c4SApple OSS Distributions #endif /* _DARWIN_C_SOURCE || _DARWIN_UNLIMITED_SELECT */
55*a325d9c4SApple OSS Distributions ;
56*a325d9c4SApple OSS Distributions 
57*a325d9c4SApple OSS Distributions #endif /* !_SYS__SELECT_H_ */
58