From e3cfc8ce61f788739c66445d903f8beacb40c93d Mon Sep 17 00:00:00 2001 From: rgrimes Date: Thu, 26 May 1994 06:18:55 +0000 Subject: BSD 4.4 Lite bin Sources --- bin/sync/Makefile | 6 +++++ bin/sync/sync.8 | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ bin/sync/sync.c | 48 ++++++++++++++++++++++++++++++++++++ 3 files changed, 127 insertions(+) create mode 100644 bin/sync/Makefile create mode 100644 bin/sync/sync.8 create mode 100644 bin/sync/sync.c (limited to 'bin/sync') diff --git a/bin/sync/Makefile b/bin/sync/Makefile new file mode 100644 index 0000000..b3f08be --- /dev/null +++ b/bin/sync/Makefile @@ -0,0 +1,6 @@ +# @(#)Makefile 8.1 (Berkeley) 5/31/93 + +PROG= sync +MAN8= sync.0 + +.include diff --git a/bin/sync/sync.8 b/bin/sync/sync.8 new file mode 100644 index 0000000..049007e --- /dev/null +++ b/bin/sync/sync.8 @@ -0,0 +1,73 @@ +.\" 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. 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. +.\" +.\" @(#)sync.8 8.1 (Berkeley) 5/31/93 +.\" +.Dd May 31, 1993 +.Dt SYNC 8 +.Os BSD 4 +.Sh NAME +.Nm sync +.Nd force completion of pending disk writes (flush cache) +.Sh SYNOPSIS +.Nm sync +.Sh DESCRIPTION +.Nm Sync +can be called to insure that all disk writes have been completed before the +processor is halted in a way not suitably done by +.Xr reboot 8 +or +.Xr halt 8 . +Generally, it is preferable to use +.Xr reboot +or +.Xr halt +to shut down the system, +as they may perform additional actions +such as resynchronizing the hardware clock +and flushing internal caches before performing a final +.Nm sync . +.Pp +.Nm Sync +utilizes the +.Xr sync 2 +function call. +.Sh SEE ALSO +.Xr sync 2 , +.Xr fsync 2 , +.Xr halt 8 , +.Xr reboot 8 , +.Xr update 8 +.Sh HISTORY +A +.Nm sync +command appeared in +.At v6 . diff --git a/bin/sync/sync.c b/bin/sync/sync.c new file mode 100644 index 0000000..dd58649 --- /dev/null +++ b/bin/sync/sync.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 1987, 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. + */ + +#ifndef lint +static char copyright[] = +"@(#) Copyright (c) 1987, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)sync.c 8.1 (Berkeley) 5/31/93"; +#endif /* not lint */ + +main() +{ + sync(); + exit(0); +} -- cgit v1.1