/* * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)select.h 8.2 (Berkeley) 1/4/94 */ #ifndef _SYS_SELECT_H_ #define _SYS_SELECT_H_ #include <sys/appleapiopts.h> #include <sys/cdefs.h> #include <sys/_types.h> /* * The time_t and suseconds_t types shall be defined as described in * <sys/types.h> * The sigset_t type shall be defined as described in <signal.h> * The timespec structure shall be defined as described in <time.h> */ #ifndef _TIME_T #define _TIME_T typedef __darwin_time_t time_t; #endif #ifndef _SUSECONDS_T #define _SUSECONDS_T typedef __darwin_suseconds_t suseconds_t; #endif #ifndef _SIGSET_T #define _SIGSET_T typedef __darwin_sigset_t sigset_t; #endif #ifndef _TIMESPEC #define _TIMESPEC struct timespec { time_t tv_sec; long tv_nsec; }; #endif /* * [XSI] The <sys/select.h> header shall define the fd_set type as a structure. * [XSI] FD_CLR, FD_ISSET, FD_SET, FD_ZERO may be declared as a function, or * defined as a macro, or both * [XSI] FD_SETSIZE shall be defined as a macro * * Note: We use _FD_SET to protect all select related * types and macros */ #ifndef _FD_SET #define _FD_SET /* * Select uses bit masks of file descriptors in longs. These macros * manipulate such bit fields (the filesystem macros use chars). The * extra protection here is to permit application redefinition above * the default size. */ #ifndef FD_SETSIZE #define FD_SETSIZE 1024 #endif #define __DARWIN_NBBY 8 /* bits in a byte */ #define __DARWIN_NFDBITS (sizeof(__int32_t) * __DARWIN_NBBY) /* bits per mask */ #define __DARWIN_howmany(x, y) (((x) + ((y) - 1)) / (y)) /* # y's == x bits? */ typedef struct fd_set { __int32_t fds_bits[__DARWIN_howmany(FD_SETSIZE, __DARWIN_NFDBITS)]; } fd_set; #define FD_SET(n, p) ((p)->fds_bits[(n)/__DARWIN_NFDBITS] |= (1<<((n) % __DARWIN_NFDBITS))) #define FD_CLR(n, p) ((p)->fds_bits[(n)/__DARWIN_NFDBITS] &= ~(1<<((n) % __DARWIN_NFDBITS))) #define FD_ISSET(n, p) ((p)->fds_bits[(n)/__DARWIN_NFDBITS] & (1<<((n) % __DARWIN_NFDBITS))) #if __GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 3 /* * Use the built-in bzero function instead of the library version so that * we do not pollute the namespace or introduce prototype warnings. */ #define FD_ZERO(p) __builtin_bzero(p, sizeof(*(p))) #else #define FD_ZERO(p) bzero(p, sizeof(*(p))) #endif #ifndef _POSIX_C_SOURCE #define FD_COPY(f, t) bcopy(f, t, sizeof(*(f))) #endif /* !_POSIX_C_SOURCE */ #endif /* !_FD_SET */ #ifdef KERNEL #ifdef KERNEL_PRIVATE #include <kern/wait_queue.h> #endif #include <sys/kernel_types.h> #include <sys/event.h> /* * Used to maintain information about processes that wish to be * notified when I/O becomes possible. */ #ifdef KERNEL_PRIVATE struct selinfo { struct wait_queue si_wait_queue; /* wait_queue for wait/wakeup */ struct klist si_note; /* JMM - temporary separation */ u_int si_flags; /* see below */ }; #define SI_COLL 0x0001 /* collision occurred */ #define SI_RECORDED 0x0004 /* select has been recorded */ #define SI_INITED 0x0008 /* selinfo has been inited */ #define SI_CLEAR 0x0010 /* selinfo has been cleared */ #else struct selinfo; #endif __BEGIN_DECLS void selrecord(proc_t selector, struct selinfo *, void *); void selwakeup(struct selinfo *); void selthreadclear(struct selinfo *); __END_DECLS #endif /* KERNEL */ #ifndef KERNEL #ifndef _POSIX_C_SOURCE #include <sys/types.h> #ifndef __MWERKS__ #include <signal.h> #endif /* __MWERKS__ */ #include <sys/time.h> #endif /* !_POSIX_C_SOURCE */ __BEGIN_DECLS #ifndef __MWERKS__ int pselect(int, fd_set * __restrict, fd_set * __restrict, fd_set * __restrict, const struct timespec * __restrict, const sigset_t * __restrict); #endif /* __MWERKS__ */ int select(int, fd_set * __restrict, fd_set * __restrict, fd_set * __restrict, struct timeval * __restrict); __END_DECLS #endif /* ! KERNEL */ #endif /* !_SYS_SELECT_H_ */