_select.h (2468B) - Raw
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_ */