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1 /*
2 * Copyright (c) 2000-2005 Apple Computer, 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 * Copyright (c) 1992, 1993
30 * The Regents of the University of California. All rights reserved.
31 *
32 * Redistribution and use in source and binary forms, with or without
33 * modification, are permitted provided that the following conditions
34 * are met:
35 * 1. Redistributions of source code must retain the above copyright
36 * notice, this list of conditions and the following disclaimer.
37 * 2. Redistributions in binary form must reproduce the above copyright
38 * notice, this list of conditions and the following disclaimer in the
39 * documentation and/or other materials provided with the distribution.
40 * 3. All advertising materials mentioning features or use of this software
41 * must display the following acknowledgement:
42 * This product includes software developed by the University of
43 * California, Berkeley and its contributors.
44 * 4. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)select.h 8.2 (Berkeley) 1/4/94
61 */
62
63 #ifndef _SYS_SELECT_H_
64 #define _SYS_SELECT_H_
65
66 #include <sys/appleapiopts.h>
67 #include <sys/cdefs.h>
68 #include <sys/_types.h>
69
70 /*
71 * [XSI] The <sys/select.h> header shall define the fd_set type as a structure.
72 * The timespec structure shall be defined as described in <time.h>
73 * The <sys/select.h> header shall define the timeval structure.
74 */
75 #include <sys/_types/_fd_def.h>
76 #include <sys/_types/_timespec.h>
77 #include <sys/_types/_timeval.h>
78
79 /*
80 * The time_t and suseconds_t types shall be defined as described in
81 * <sys/types.h>
82 * The sigset_t type shall be defined as described in <signal.h>
83 */
84 #include <sys/_types/_time_t.h>
85 #include <sys/_types/_suseconds_t.h>
86 #include <sys/_types/_sigset_t.h>
87
88 /*
89 * [XSI] FD_CLR, FD_ISSET, FD_SET, FD_ZERO may be declared as a function, or
90 * defined as a macro, or both
91 * [XSI] FD_SETSIZE shall be defined as a macro
92 */
93
94 /*
95 * Select uses bit masks of file descriptors in longs. These macros
96 * manipulate such bit fields (the filesystem macros use chars). The
97 * extra protection here is to permit application redefinition above
98 * the default size.
99 */
100 #include <sys/_types/_fd_setsize.h>
101 #include <sys/_types/_fd_set.h>
102 #include <sys/_types/_fd_clr.h>
103 #include <sys/_types/_fd_isset.h>
104 #include <sys/_types/_fd_zero.h>
105
106 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
107 #include <sys/_types/_fd_copy.h>
108 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
109
110 #ifdef KERNEL
111 #include <sys/kernel_types.h>
112 #include <kern/waitq.h>
113 #include <sys/event.h>
114
115 /*
116 * Used to maintain information about processes that wish to be
117 * notified when I/O becomes possible.
118 */
119 #ifdef KERNEL_PRIVATE
120 struct selinfo {
121 struct waitq si_waitq; /* waitq for wait/wakeup */
122 struct klist si_note; /* JMM - temporary separation */
123 u_int si_flags; /* see below */
124 };
125
126 #define SI_COLL 0x0001 /* collision occurred */
127 #define SI_RECORDED 0x0004 /* select has been recorded */
128 #define SI_INITED 0x0008 /* selinfo has been inited */
129 #define SI_CLEAR 0x0010 /* selinfo has been cleared */
130 #define SI_KNPOSTING 0x0020 /* posting to knotes */
131
132 #else
133 struct selinfo;
134 #endif
135
136 __BEGIN_DECLS
137
138 extern int selwait;
139 void selrecord(proc_t selector, struct selinfo *, void *);
140 void selwakeup(struct selinfo *);
141 void selthreadclear(struct selinfo *);
142
143 __END_DECLS
144
145 #else /* !KERNEL */
146
147 __BEGIN_DECLS
148
149 #ifndef __MWERKS__
150 int pselect(int, fd_set * __restrict, fd_set * __restrict,
151 fd_set * __restrict, const struct timespec * __restrict,
152 const sigset_t * __restrict)
153 #if defined(_DARWIN_C_SOURCE) || defined(_DARWIN_UNLIMITED_SELECT)
154 __DARWIN_EXTSN_C(pselect)
155 #else /* !_DARWIN_C_SOURCE && !_DARWIN_UNLIMITED_SELECT */
156 # if defined(__LP64__) && !__DARWIN_NON_CANCELABLE
157 __DARWIN_1050(pselect)
158 # else /* !__LP64__ || __DARWIN_NON_CANCELABLE */
159 __DARWIN_ALIAS_C(pselect)
160 # endif /* __LP64__ && !__DARWIN_NON_CANCELABLE */
161 #endif /* _DARWIN_C_SOURCE || _DARWIN_UNLIMITED_SELECT */
162 ;
163 #endif /* __MWERKS__ */
164
165 #include <sys/_select.h> /* select() prototype */
166
167 __END_DECLS
168
169 #endif /* ! KERNEL */
170
171 #endif /* !_SYS_SELECT_H_ */