xref: /xnu-11215.81.4/bsd/sys/_select.h (revision d4514f0bc1d3f944c22d92e68b646ac3fb40d452)
1*d4514f0bSApple OSS Distributions /*
2*d4514f0bSApple OSS Distributions  * Copyright (c) 2005, 2007 Apple Inc. All rights reserved.
3*d4514f0bSApple OSS Distributions  *
4*d4514f0bSApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*d4514f0bSApple OSS Distributions  *
6*d4514f0bSApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*d4514f0bSApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*d4514f0bSApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*d4514f0bSApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*d4514f0bSApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*d4514f0bSApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*d4514f0bSApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*d4514f0bSApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*d4514f0bSApple OSS Distributions  *
15*d4514f0bSApple OSS Distributions  * Please obtain a copy of the License at
16*d4514f0bSApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*d4514f0bSApple OSS Distributions  *
18*d4514f0bSApple OSS Distributions  * The Original Code and all software distributed under the License are
19*d4514f0bSApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*d4514f0bSApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*d4514f0bSApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*d4514f0bSApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*d4514f0bSApple OSS Distributions  * Please see the License for the specific language governing rights and
24*d4514f0bSApple OSS Distributions  * limitations under the License.
25*d4514f0bSApple OSS Distributions  *
26*d4514f0bSApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*d4514f0bSApple OSS Distributions  */
28*d4514f0bSApple OSS Distributions 
29*d4514f0bSApple OSS Distributions /*
30*d4514f0bSApple OSS Distributions  * This is called from sys/select.h and sys/time.h for the common prototype
31*d4514f0bSApple OSS Distributions  * of select().  Setting _DARWIN_C_SOURCE or _DARWIN_UNLIMITED_SELECT uses
32*d4514f0bSApple OSS Distributions  * the version of select() that does not place a limit on the first argument
33*d4514f0bSApple OSS Distributions  * (nfds).  In the UNIX conformance case, values of nfds greater than
34*d4514f0bSApple OSS Distributions  * FD_SETSIZE will return an error of EINVAL.
35*d4514f0bSApple OSS Distributions  */
36*d4514f0bSApple OSS Distributions #ifndef _SYS__SELECT_H_
37*d4514f0bSApple OSS Distributions #define _SYS__SELECT_H_
38*d4514f0bSApple OSS Distributions 
39*d4514f0bSApple OSS Distributions #include <sys/cdefs.h> /* __DARWIN_EXTSN_C, __DARWIN_1050, __DARWIN_ALIAS_C */
40*d4514f0bSApple OSS Distributions #include <sys/_types/_fd_def.h> /* fd_set */
41*d4514f0bSApple OSS Distributions #include <sys/_types/_timeval.h> /* struct timeval */
42*d4514f0bSApple OSS Distributions 
43*d4514f0bSApple OSS Distributions int      select(int, fd_set * __restrict, fd_set * __restrict,
44*d4514f0bSApple OSS Distributions     fd_set * __restrict, struct timeval * __restrict)
45*d4514f0bSApple OSS Distributions 
46*d4514f0bSApple OSS Distributions #if defined(_DARWIN_C_SOURCE) || defined(_DARWIN_UNLIMITED_SELECT)
47*d4514f0bSApple OSS Distributions __DARWIN_EXTSN_C(select)
48*d4514f0bSApple OSS Distributions #else /* !_DARWIN_C_SOURCE && !_DARWIN_UNLIMITED_SELECT */
49*d4514f0bSApple OSS Distributions #  if defined(__LP64__) && !__DARWIN_NON_CANCELABLE
50*d4514f0bSApple OSS Distributions __DARWIN_1050(select)
51*d4514f0bSApple OSS Distributions #  else /* !__LP64__ || __DARWIN_NON_CANCELABLE */
52*d4514f0bSApple OSS Distributions __DARWIN_ALIAS_C(select)
53*d4514f0bSApple OSS Distributions #  endif /* __LP64__ && !__DARWIN_NON_CANCELABLE */
54*d4514f0bSApple OSS Distributions #endif /* _DARWIN_C_SOURCE || _DARWIN_UNLIMITED_SELECT */
55*d4514f0bSApple OSS Distributions ;
56*d4514f0bSApple OSS Distributions 
57*d4514f0bSApple OSS Distributions #endif /* !_SYS__SELECT_H_ */
58