.\" -*- nroff -*-
.\"
.\" Copyright (c) 1992 Drew Eckhardt (drew@cs.colorado.edu), March 28, 1992
.\"
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.\" manual provided the copyright notice and this permission notice are
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.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
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.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
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.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Modified by Michael Haardt <michael@moria.de>
.\" Modified Sat Jul 24 12:02:47 1993 by Rik Faith <faith@cs.unc.edu>
.\" Modified 15 Apr 1995 by Michael Chastain <mec@shell.portal.com>:
.\"   Added reference to `bdflush(2)'.
.\" Modified 960414 by Andries Brouwer <aeb@cwi.nl>:
.\"   Added the fact that since 1.3.20 sync actually waits.
.\" Modified Tue Oct 22 22:27:07 1996 by Eric S. Raymond <esr@thyrsus.com>
.\"
.TH SYNC 2 "15/04/1995" "Linux 1.3.88" "Manual do Programador Linux"
.SH NOME
sync \- transfere o cache do registro para o disk.
.SH SYNOPSIS
.B #include <unistd.h>
.sp
.B int sync(void);
.SH DESCRIÇÃO
.B sync
começa transferindo os inodes para o registro, e então o registro para o disco.
.SH "VALORES RETORNADOS"
.B sync
sempre retorna 0.
.SH "DE ACORDO COM"
SVr4, SVID, X/OPEN, BSD 4.3
.SH PROBLEMAS
De acordo com a especificação padrão (i.e., SVID),
\fBsync()\fP programas as gravações, mas pode retornar antes da gravação atual ser acabada.
De qualquer forma, desde a versão 1.3.20 o Linux faz aguardar realmente.
(Isto ainda não garante integridade de dados: discos modernos tem cachês grandes.)
.SH "VEJA TAMBÉM"
.BR bdflush (2),
.BR fsync (2),
.BR fdatasync (2),
.BR update (8),
.BR sync (8)

.SH TRADUZIDO POR LDP-BR em 21/08/2000.
\&\fR\&\f(CWAndré L. Fassone Canova <lonelywolf@blv.com.br> (tradução)\fR
\&\fR\&\f(CWxxxxxxxxxxxxxxxxxxxxxxxxx <xxx@xxxxxx.xxx.xx> (revisão)\fR