X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..8ad349bb6ed4a0be06e34c92be0d98b92e078db4:/bsd/sys/select.h diff --git a/bsd/sys/select.h b/bsd/sys/select.h index 10cf8b78c..628c3867a 100644 --- a/bsd/sys/select.h +++ b/bsd/sys/select.h @@ -1,23 +1,31 @@ /* - * Copyright (c) 2000 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. + * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved. * - * 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_OSREFERENCE_HEADER_START@ * - * @APPLE_LICENSE_HEADER_END@ + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the + * License may not be used to create, or enable the creation or + * redistribution of, unlawful or unlicensed copies of an Apple operating + * system, or to circumvent, violate, or enable the circumvention or + * violation of, any terms of an Apple operating system software license + * agreement. + * + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this + * file. + * + * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. + * + * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ */ /* * Copyright (c) 1992, 1993 @@ -57,22 +65,144 @@ #ifndef _SYS_SELECT_H_ #define _SYS_SELECT_H_ +#include +#include +#include + +/* + * The time_t and suseconds_t types shall be defined as described in + * + * The sigset_t type shall be defined as described in + * The timespec structure shall be defined as described in + */ +#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 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 +#endif +#include + +#include + /* * Used to maintain information about processes that wish to be * notified when I/O becomes possible. */ +#ifdef KERNEL_PRIVATE struct selinfo { - void *si_thread; /* thread to be notified */ - short si_flags; /* see below */ + 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 */ -#ifdef KERNEL -struct proc; +#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 */ -void selrecord __P((struct proc *selector, struct selinfo *)); -void selwakeup __P((struct selinfo *)); -void selthreadclear __P((struct selinfo *)); +#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 +#ifndef __MWERKS__ +#include +#endif /* __MWERKS__ */ +#include +#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_ */