SYNC(P) 						     POSIX Programmer's Manual							   SYNC(P)

NAME

       sync - schedule file system updates

SYNOPSIS

       #include <unistd.h>

       void sync(void);

DESCRIPTION

       The sync() function shall cause all information in memory that updates file systems to be scheduled for writing out to all file systems.

       The writing, although scheduled, is not necessarily complete upon return from sync().

RETURN VALUE

       The sync() function shall not return a value.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       fsync() , the Base Definitions volume of IEEE Std 1003.1-2001, <unistd.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
       and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								   SYNC(P)