Rewrite types(5) as per perry@'s suggestion from few years back ("XXX this
document is rather musty. It needs a general update."). Also move it to the right section from section 5. Ok wiz@. To minimize maintenance costs, the content is mostly jargon around The Standard. Only few NetBSD-specific types are mentioned as an example.
This commit is contained in:
jruoho
parent
9f8746b55e
commit
526aa19c52
@ -1,4 +1,4 @@
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# $NetBSD: mi,v 1.1434 2010/04/21 18:04:38 jruoho Exp $
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# $NetBSD: mi,v 1.1435 2010/04/22 06:48:28 jruoho Exp $
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#
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# Note: don't delete entries from here - mark them as "obsolete" instead.
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#
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@ -8219,6 +8219,7 @@
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./usr/share/man/cat3/ttyslot.0 comp-c-catman .cat
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./usr/share/man/cat3/ttyunlock.0 comp-c-catman .cat
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./usr/share/man/cat3/twalk.0 comp-c-catman .cat
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./usr/share/man/cat3/types.0 comp-c-catman .cat
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./usr/share/man/cat3/tzset.0 comp-c-catman .cat
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./usr/share/man/cat3/tzsetwall.0 comp-c-catman .cat
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./usr/share/man/cat3/ualarm.0 comp-c-catman .cat
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@ -13946,6 +13947,7 @@
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./usr/share/man/html3/ttyslot.html comp-c-htmlman html
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./usr/share/man/html3/ttyunlock.html comp-c-htmlman html
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./usr/share/man/html3/twalk.html comp-c-htmlman html
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./usr/share/man/html3/types.html comp-c-htmlman html
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./usr/share/man/html3/tzset.html comp-c-htmlman html
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./usr/share/man/html3/tzsetwall.html comp-c-htmlman html
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./usr/share/man/html3/ualarm.html comp-c-htmlman html
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@ -19743,6 +19745,7 @@
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./usr/share/man/man3/ttyslot.3 comp-c-man .man
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./usr/share/man/man3/ttyunlock.3 comp-c-man .man
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./usr/share/man/man3/twalk.3 comp-c-man .man
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./usr/share/man/man3/types.3 comp-c-man .man
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./usr/share/man/man3/tzset.3 comp-c-man .man
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./usr/share/man/man3/tzsetwall.3 comp-c-man .man
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./usr/share/man/man3/ualarm.3 comp-c-man .man
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@ -1,4 +1,4 @@
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# $NetBSD: mi,v 1.1203 2010/04/10 20:52:14 pooka Exp $
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# $NetBSD: mi,v 1.1204 2010/04/22 06:48:28 jruoho Exp $
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#
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# Note: don't delete entries from here - mark them as "obsolete" instead.
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#
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@ -1896,7 +1896,7 @@
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./usr/share/man/cat5/transport.0 man-postfix-catman postfix,.cat
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./usr/share/man/cat5/ttyaction.0 man-sys-catman .cat
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./usr/share/man/cat5/ttys.0 man-sys-catman .cat
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./usr/share/man/cat5/types.0 man-c-catman .cat
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./usr/share/man/cat5/types.0 man-obsolete obsolete
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./usr/share/man/cat5/tzfile.0 man-sys-catman .cat
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./usr/share/man/cat5/ucontext.0 man-obsolete obsolete
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./usr/share/man/cat5/usermgmt.conf.0 man-sys-catman .cat
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@ -4456,7 +4456,7 @@
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./usr/share/man/html5/transport.html man-postfix-htmlman postfix,html
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./usr/share/man/html5/ttyaction.html man-sys-htmlman html
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./usr/share/man/html5/ttys.html man-sys-htmlman html
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./usr/share/man/html5/types.html man-c-htmlman html
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./usr/share/man/html5/types.html man-obsolete obsolete
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./usr/share/man/html5/tzfile.html man-sys-htmlman html
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./usr/share/man/html5/usermgmt.conf.html man-sys-htmlman html
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./usr/share/man/html5/utmp.html man-sys-htmlman html
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@ -6986,7 +6986,7 @@
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./usr/share/man/man5/transport.5 man-postfix-man postfix,.man
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./usr/share/man/man5/ttyaction.5 man-sys-man .man
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./usr/share/man/man5/ttys.5 man-sys-man .man
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./usr/share/man/man5/types.5 man-c-man .man
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./usr/share/man/man5/types.5 man-obsolete obsolete
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./usr/share/man/man5/tzfile.5 man-sys-man .man
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./usr/share/man/man5/ucontext.5 man-obsolete obsolete
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./usr/share/man/man5/usermgmt.conf.5 man-sys-man .man
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@ -1,11 +1,11 @@
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# $NetBSD: Makefile,v 1.48 2010/04/21 18:04:38 jruoho Exp $
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# $NetBSD: Makefile,v 1.49 2010/04/22 06:48:29 jruoho Exp $
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# @(#)Makefile 8.2 (Berkeley) 12/13/93
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MAN= _DIAGASSERT.3 __CONCAT.3 __UNCONST.3 CMSG_DATA.3 \
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__arraycount.3 assert.3 bits.3 bitstring.3 dlfcn.3 end.3 \
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fast_divide32.3 gcq.3 intro.3 inttypes.3 iso646.3 offsetof.3 queue.3 \
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rb.3 stdarg.3 stdbool.3 stddef.3 stdint.3 stdlib.3 sysexits.3 \
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tgmath.3 timeradd.3 tree.3 varargs.3
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tgmath.3 timeradd.3 tree.3 types.3 varargs.3
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USETBL= # used by queue.3
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222
share/man/man3/types.3
Normal file
222
share/man/man3/types.3
Normal file
@ -0,0 +1,222 @@
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.\" $NetBSD: types.3,v 1.1 2010/04/22 06:48:29 jruoho Exp $
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.\"
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.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Jukka Ruohonen.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
|
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.\" 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.
|
||||
.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION 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.
|
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.\"
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.\" Copyright (c) 1980, 1991, 1993
|
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.\" 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. 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.
|
||||
.\"
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||||
.\" @(#)types.5 8.1 (Berkeley) 6/5/93
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.\"
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.Dd March 22, 2010
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.Dt TYPES 3
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.Os
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.Sh NAME
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.Nm types
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.Nd standard system data types
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.Sh SYNOPSIS
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.In sys/types.h
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.Sh DESCRIPTION
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The
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.In sys/types.h
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header contains the common data types used in the system.
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Although these are meant to be used within the kernel,
|
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most of the system data types are accessible also to user code.
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A companion header
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.In sys/param.h ,
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typically used in the kernel,
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includes
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.In sys/types.h
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and provides additional types as well as other facilities.
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.Ss Standard Types
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The following standards-compliant data types are defined:
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.Pp
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.Bl -column -offset indent \
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"suseconds_t " "file system block counts " "clock_settime(3) "
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.It Sy Type Ta Sy Typical use Ta Sy Example
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.It Va blkcnt_t Ta file block counts Ta Xr stat 2
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.It Va blksize_t Ta block sizes Ta Xr stat 2
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.It Va clock_t Ta system clock ticks Ta Xr clock 3
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.It Va clockid_t Ta clock IDs Ta Xr clock_settime 2
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.It Va dev_t Ta device IDs Ta Xr devname 3
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.It Va fsblkcnt_t Ta file system block counts Ta -
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.It Va fsfilcnt_t Ta file system file counts Ta -
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.It Va gid_t Ta group IDs Ta Xr getgid 2
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.It Va id_t Ta general identifier Ta Xr pset 3
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.It Va ino_t Ta file serial numbers Ta Xr fs 5
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.It Va key_t Ta interprocess communication Ta Xr ftok 3
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.It Va mode_t Ta file attributes Ta Xr stat 2
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.It Va nlink_t Ta link counts Ta Xr stat 2
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.It Va off_t Ta file sizes Ta Xr fseek 3
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.It Va pid_t Ta process and group IDs Ta Xr getpid 2
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.It Va size_t Ta size of objects Ta Xr stddef 3
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.It Va ssize_t Ta a count of bytes Ta Xr write 2
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.It Va suseconds_t Ta microseconds Ta Xr gettimeofday 2
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.It Va time_t Ta time in seconds Ta Xr time 3
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.It Va timer_t Ta timer IDs Ta Xr timer_create 2
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.\"
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.\" XXX: Following are undefined in NetBSD at the time of writing:
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.\"
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.\".It Va trace_attr_t Ta trace stream attributes Ta -
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.\".It Va trace_event_id_t Ta trace event type Ta -
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.\".It Va trace_event_set_t Ta trace event type set Ta -
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.\".It Va trace_id_t Ta trace stream ID Ta -
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.It Va uid_t Ta user IDs Ta Xr setuid 2
|
||||
.It Va useconds_t Ta time in microseconds Ta Xr usleep 3
|
||||
.El
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||||
.Pp
|
||||
In addition, when included in user applications,
|
||||
.In sys/types.h
|
||||
includes
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||||
.In pthread.h ,
|
||||
and thus it defines also the types used in the
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.Tn POSIX
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Threads Library,
|
||||
.Xr pthread 3 .
|
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.Pp
|
||||
Each described type may vary across machines and operating systems.
|
||||
Only the following properties are guaranteed by the
|
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.St -p1003.1-2001
|
||||
standard:
|
||||
.Bl -enum -offset indent
|
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.It
|
||||
The type
|
||||
.Em ssize_t
|
||||
is capable of storing integer values at least in the range [ -1,
|
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.Dv SSIZE_MAX
|
||||
].
|
||||
.It
|
||||
The type
|
||||
.Em useconds_t
|
||||
is an unsigned integer capable of storing
|
||||
values at least in the range [ 0, 1000000 ].
|
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.It
|
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The type
|
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.Em suseconds_t
|
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is a signed integer capable of storing
|
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values at least in the range [ -1, 1000000 ].
|
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.It
|
||||
The
|
||||
.Em time_t
|
||||
and
|
||||
.Em clock_t
|
||||
types are either integers or real-floating types.
|
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.It
|
||||
The following types are integers:
|
||||
.Em gid_t ,
|
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.Em id_t ,
|
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.Em mode_t ,
|
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.Em nlink_t ,
|
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and
|
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.Em uid_t .
|
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.It
|
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The following types are signed integers:
|
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.Em blkcnt_t ,
|
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.Em blksize_t ,
|
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.Em off_t ,
|
||||
.Em pid_t ,
|
||||
and
|
||||
.Em ssize_t .
|
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.It
|
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The following types are unsigned integers:
|
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.Em fsblkcnt_t ,
|
||||
.Em fsfilcnt_t ,
|
||||
.Em ino_t ,
|
||||
and
|
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.Em size_t .
|
||||
.El
|
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.Sh NetBSD-specific Types
|
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In addition to the standard types, the
|
||||
.In sys/types.h
|
||||
defines some data types specific to
|
||||
.Nx .
|
||||
These are mostly used in the kernel.
|
||||
A portable implementation should not rely
|
||||
on these types to be available in other systems.
|
||||
Examples include:
|
||||
.Bl -column -offset indent \
|
||||
"suseconds_t " "file system block counts " "clock_settime(3) "
|
||||
.It Sy Type Ta Sy Typical use Ta Sy Example
|
||||
.It Va cpuid_t Ta CPU ID Ta Xr cpuset 3
|
||||
.It Va daddr_t Ta disk address Ta Xr buffercache 9
|
||||
.It Va devmajor_t Ta major device number Ta Xr getdevmajor 3
|
||||
.It Va lwp_t Ta typedef of Va struct lwp Ta Xr kthread 9
|
||||
.It Va u_quad_t Ta synonym for Va uint64_t Ta Xr strtouq 3
|
||||
.El
|
||||
.Pp
|
||||
It can be noted that the standard
|
||||
.Dq C99 types
|
||||
described in
|
||||
.Xr stdint 3
|
||||
are preferred to the older fixed size integer types prefixed with an
|
||||
.Dq u_
|
||||
(in another words,
|
||||
.Va uint32_t
|
||||
should be used instead of
|
||||
.Va u_int32_t ) .
|
||||
.Sh SEE ALSO
|
||||
.Xr stdbool 3 ,
|
||||
.Xr stddef 3 ,
|
||||
.Xr stdint 3 ,
|
||||
.Xr stdlib 3
|
||||
.Sh STANDARDS
|
||||
The
|
||||
.In sys/types.h
|
||||
header conforms to
|
||||
.St -p1003.1-2001
|
||||
with respect to the described standard types.
|
||||
.Sh HISTORY
|
||||
The
|
||||
.In sys/types.h
|
||||
header first appeared in
|
||||
.At v7 .
|
||||
In the current form the header appeared in
|
||||
.Nx 0.9 .
|
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@ -1,4 +1,4 @@
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||||
# $NetBSD: Makefile,v 1.62 2009/07/25 16:20:11 mbalmer Exp $
|
||||
# $NetBSD: Makefile,v 1.63 2010/04/22 06:48:28 jruoho Exp $
|
||||
# @(#)Makefile 8.1 (Berkeley) 6/5/93
|
||||
|
||||
# missing: dump.5 plot.5
|
||||
@ -15,7 +15,7 @@ MAN= a.out.5 acct.5 ar.5 boot.cfg.5 \
|
||||
printcap.5 protocols.5 ranlib.5 rc.conf.5 remote.5 \
|
||||
resolv.conf.5 route.conf.5 rpc.5 \
|
||||
security.conf.5 services.5 shells.5 \
|
||||
stab.5 statvfs.5 sysctl.conf.5 ttyaction.5 types.5 \
|
||||
stab.5 statvfs.5 sysctl.conf.5 ttyaction.5 \
|
||||
utmp.5 utmpx.5 veriexec.5 weekly.conf.5 wscons.conf.5
|
||||
|
||||
MLINKS= dir.5 dirent.5 fs.5 inode.5 hosts.equiv.5 rhosts.5
|
||||
|
||||
@ -1,180 +0,0 @@
|
||||
.\" $NetBSD: types.5,v 1.13 2010/03/22 18:58:32 joerg Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 1980, 1991, 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. 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.
|
||||
.\"
|
||||
.\" @(#)types.5 8.1 (Berkeley) 6/5/93
|
||||
.\"
|
||||
.Dd December 26, 2005
|
||||
.Dt TYPES 5
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm types
|
||||
.Nd system data types
|
||||
.Sh SYNOPSIS
|
||||
.In sys/types.h
|
||||
.Sh DESCRIPTION
|
||||
The file
|
||||
.In sys/types.h
|
||||
contains the defined data types used in the kernel (most are
|
||||
used throughout the system).
|
||||
.Pp
|
||||
Note that in
|
||||
.Nx
|
||||
code, when an integer of a specific width is needed, the C99
|
||||
style
|
||||
.Vt int8_t, uint8_t, int16_t, uint16_t, int32_t, uint32_t, int64_t, uint64_t
|
||||
should be used.
|
||||
The old
|
||||
.Bx
|
||||
style
|
||||
.Vt u_int8_t, u_int16_t, u_int32_t, u_int64_t
|
||||
are deprecated.
|
||||
.Bd -literal
|
||||
#ifndef _SYS_TYPES_H_
|
||||
#define _SYS_TYPES_H_
|
||||
|
||||
/* Machine type dependent parameters. */
|
||||
#include \*[Lt]machine/types.h\*[Gt]
|
||||
|
||||
#include \*[Lt]machine/ansi.h\*[Gt]
|
||||
#include \*[Lt]machine/endian.h\*[Gt]
|
||||
|
||||
#if !defined(_POSIX_SOURCE) \*[Am]\*[Am] !defined(_XOPEN_SOURCE)
|
||||
typedef unsigned char u_char;
|
||||
typedef unsigned short u_short;
|
||||
typedef unsigned int u_int;
|
||||
typedef unsigned long u_long;
|
||||
|
||||
typedef unsigned char unchar; /* Sys V compatibility */
|
||||
typedef unsigned short ushort; /* Sys V compatibility */
|
||||
typedef unsigned int uint; /* Sys V compatibility */
|
||||
typedef unsigned long ulong; /* Sys V compatibility */
|
||||
#endif
|
||||
|
||||
typedef uint64_t u_quad_t; /* quads */
|
||||
typedef int64_t quad_t;
|
||||
typedef quad_t * qaddr_t;
|
||||
|
||||
typedef char * caddr_t; /* core address */
|
||||
typedef int32_t daddr_t; /* disk address */
|
||||
typedef int32_t dev_t; /* device number */
|
||||
typedef uint32_t fixpt_t; /* fixed point number */
|
||||
typedef uint32_t gid_t; /* group id */
|
||||
typedef uint32_t ino_t; /* inode number */
|
||||
typedef long key_t; /* IPC key (for Sys V IPC) */
|
||||
typedef uint16_t mode_t; /* permissions */
|
||||
typedef uint16_t nlink_t; /* link count */
|
||||
typedef quad_t off_t; /* file offset */
|
||||
typedef int32_t pid_t; /* process id */
|
||||
typedef quad_t rlim_t; /* resource limit */
|
||||
typedef int32_t segsz_t; /* segment size */
|
||||
typedef int32_t swblk_t; /* swap offset */
|
||||
typedef uint32_t uid_t; /* user id */
|
||||
|
||||
#if !defined(_POSIX_SOURCE) \*[Am]\*[Am] !defined(_XOPEN_SOURCE)
|
||||
/* Major, minor numbers, dev_t's. */
|
||||
#define major(x) ((int32_t)(((uint32_t)(x) \*[Gt]\*[Gt] 8) \*[Am] 0xff))
|
||||
#define minor(x) ((int32_t)((x) \*[Am] 0xff))
|
||||
#define makedev(x,y) ((dev_t)(((x) \*[Lt]\*[Lt] 8) | (y)))
|
||||
#endif
|
||||
|
||||
#ifdef _BSD_CLOCK_T_
|
||||
typedef _BSD_CLOCK_T_ clock_t;
|
||||
#undef _BSD_CLOCK_T_
|
||||
#endif
|
||||
|
||||
#ifdef _BSD_SIZE_T_
|
||||
typedef _BSD_SIZE_T_ size_t;
|
||||
#undef _BSD_SIZE_T_
|
||||
#endif
|
||||
|
||||
#ifdef _BSD_SSIZE_T_
|
||||
typedef _BSD_SSIZE_T_ ssize_t;
|
||||
#undef _BSD_SSIZE_T_
|
||||
#endif
|
||||
|
||||
#ifdef _BSD_TIME_T_
|
||||
typedef _BSD_TIME_T_ time_t;
|
||||
#undef _BSD_TIME_T_
|
||||
#endif
|
||||
|
||||
#ifdef _BSD_CLOCKID_T_
|
||||
typedef _BSD_CLOCKID_T_ clockid_t;
|
||||
#undef _BSD_CLOCKID_T_
|
||||
#endif
|
||||
|
||||
#ifdef _BSD_TIMER_T_
|
||||
typedef _BSD_TIMER_T_ timer_t;
|
||||
#undef _BSD_TIMER_T_
|
||||
#endif
|
||||
|
||||
#if !defined(_POSIX_SOURCE) \*[Am]\*[Am] !defined(_XOPEN_SOURCE)
|
||||
#define NBBY 8 /* number of bits in a byte */
|
||||
|
||||
/*
|
||||
* Select uses bit masks of file descriptors in longs. These macros
|
||||
* manipulate such bit fields (the filesystem macros use chars).
|
||||
* FD_SETSIZE may be defined by the user, but the default here should
|
||||
* be enough for most uses.
|
||||
*/
|
||||
#ifndef FD_SETSIZE
|
||||
#define FD_SETSIZE 256
|
||||
#endif
|
||||
|
||||
typedef int32_t fd_mask;
|
||||
#define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */
|
||||
|
||||
#ifndef howmany
|
||||
#define howmany(x, y) (((x) + ((y) - 1)) / (y))
|
||||
#endif
|
||||
|
||||
typedef struct fd_set {
|
||||
fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
|
||||
} fd_set;
|
||||
|
||||
#define FD_SET(n, p) ((p)-\*[Gt]fds_bits[(n)/NFDBITS] |= (1 \*[Lt]\*[Lt] ((n) % NFDBITS)))
|
||||
#define FD_CLR(n, p) ((p)-\*[Gt]fds_bits[(n)/NFDBITS] \*[Am]= ~(1 \*[Lt]\*[Lt] ((n) % NFDBITS)))
|
||||
#define FD_ISSET(n, p) ((p)-\*[Gt]fds_bits[(n)/NFDBITS] \*[Am] (1 \*[Lt]\*[Lt] ((n) % NFDBITS)))
|
||||
#define FD_COPY(f, t) memcpy(t, f, sizeof(*(f)))
|
||||
#define FD_ZERO(p) memset(p, 0, sizeof(*(p)))
|
||||
|
||||
#endif /* !defined(_POSIX_SOURCE) ... */
|
||||
#endif /* !_SYS_TYPES_H_ */
|
||||
.Ed
|
||||
.Sh SEE ALSO
|
||||
.Xr lseek 2 ,
|
||||
.Xr select 2 ,
|
||||
.Xr truncate 2 ,
|
||||
.Xr byteorder 3 ,
|
||||
.Xr time 3 ,
|
||||
.Xr fs 5
|
||||
.Sh HISTORY
|
||||
A
|
||||
.Nm
|
||||
file appeared in
|
||||
.At v7 .
|
||||
Loading…
Reference in New Issue
Block a user