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Annotation of 43BSDTahoe/man/man2/fsync.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)fsync.2     6.4 (Berkeley) 5/22/86
        !             6: .\"
        !             7: .TH FSYNC 2 "May 22, 1986"
        !             8: .UC 5
        !             9: .SH NAME
        !            10: fsync \- synchronize a file's in-core state with that on disk
        !            11: .SH SYNOPSIS
        !            12: .ft B
        !            13: fsync(fd)
        !            14: .br
        !            15: int fd;
        !            16: .ft R
        !            17: .SH DESCRIPTION
        !            18: .I Fsync
        !            19: causes all modified data and attributes of \fIfd\fP
        !            20: to be moved to a permanent storage device.
        !            21: This normally results in all in-core modified copies
        !            22: of buffers for the associated file to be written to a disk.
        !            23: .PP
        !            24: .I Fsync
        !            25: should be used by programs that require a file to be
        !            26: in a known state, for example, in building a simple transaction
        !            27: facility.
        !            28: .SH "RETURN VALUE
        !            29: A 0 value is returned on success.  A \-1 value indicates
        !            30: an error.
        !            31: .SH "ERRORS
        !            32: The \fIfsync\fP fails if:
        !            33: .TP 15
        !            34: [EBADF]
        !            35: \fIFd\fP is not a valid descriptor.
        !            36: .TP 15
        !            37: [EINVAL]
        !            38: \fIFd\fP refers to a socket, not to a file.
        !            39: .TP 15
        !            40: [EIO]
        !            41: An I/O error occurred while reading from or writing to the file system.
        !            42: .SH "SEE ALSO"
        !            43: sync(2), sync(8), update(8)

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