From 4aeb1c05fbe992cf7d9af2b316e897928efb207c Mon Sep 17 00:00:00 2001 From: Paul Saab Date: Wed, 19 Jul 2000 08:38:18 +0000 Subject: [PATCH] Add fsync(8). This becomes useful with the advent of MAP_NOSYNC etc. Reviewed by: peter --- usr.bin/Makefile | 1 + usr.bin/fsync/Makefile | 6 ++++ usr.bin/fsync/fsync.1 | 55 +++++++++++++++++++++++++++++++++++++ usr.bin/fsync/fsync.c | 62 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 124 insertions(+) create mode 100644 usr.bin/fsync/Makefile create mode 100644 usr.bin/fsync/fsync.1 create mode 100644 usr.bin/fsync/fsync.c diff --git a/usr.bin/Makefile b/usr.bin/Makefile index 79ad977d311f..ecad800b2897 100644 --- a/usr.bin/Makefile +++ b/usr.bin/Makefile @@ -49,6 +49,7 @@ SUBDIR= apply \ fold \ from \ fstat \ + fsync \ ftp \ genassym \ gencat \ diff --git a/usr.bin/fsync/Makefile b/usr.bin/fsync/Makefile new file mode 100644 index 000000000000..23229fed2af3 --- /dev/null +++ b/usr.bin/fsync/Makefile @@ -0,0 +1,6 @@ +# $FreeBSD$ + +PROG= fsync +MAN8= fsync.8 + +.include diff --git a/usr.bin/fsync/fsync.1 b/usr.bin/fsync/fsync.1 new file mode 100644 index 000000000000..ee193f9fac1b --- /dev/null +++ b/usr.bin/fsync/fsync.1 @@ -0,0 +1,55 @@ +.\" Copyright (c) 2000 Paul Saab +.\" 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. +.\" +.\" 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. +.\" +.\" $FreeBSD$ +.\" +.Dd June 15, 2000 +.Dt FSYNC 8 +.Os +.Sh NAME +.Nm fsync +.Nd synchronize a file's in-core state with that on disk +.Sh SYNOPSIS +.Nm fsync +.Ar file ... +.Sh DESCRIPTION +.Nm Fsync +causes all modified data and meta-data of +a file to be written to a permanent storage device. +.Pp +.Nm Fync +utilizes the +.Xr fync 2 +function call. +.Sh SEE ALSO +.Xr fsync 2 , +.Xr sync 2 , +.Xr update 4 , +.Xr halt 8 , +.Xr reboot 8 +.Sh HISTORY +The +.Nm +command first appeared in +.Fx 5.0 . diff --git a/usr.bin/fsync/fsync.c b/usr.bin/fsync/fsync.c new file mode 100644 index 000000000000..e9a115fa838c --- /dev/null +++ b/usr.bin/fsync/fsync.c @@ -0,0 +1,62 @@ +/*- + * Copyright (c) 2000 Paul Saab + * 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. + * + * 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. + * + * $FreeBSD$ + */ + +#include +#include +#include +#include +#include + +void usage(void); + +int +main(int argc, char *argv[]) +{ + int fd; + int i; + + if (argc < 2) + usage(); + + for (i = 1; i < argc; ++i) { + if ((fd = open(argv[i], O_RDONLY)) < 0) + err(1, "open %s", argv[i]); + + if (fsync(fd) != 0) + err(1, "fsync %s", argv[1]); + close(fd); + } + return(0); +} + +void +usage() +{ + fprintf(stderr, "usaged: fsync file ...\n"); + exit(EX_USAGE); +}