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Annotation of cci/usr/src/man/man2/fsync.2, revision 1.1

1.1     ! root        1: .TH FSYNC 2 "12 February 1983"
        !             2: .UC 4
        !             3: .SH NAME
        !             4: fsync \- synchronize a file's in-core state with that on disk
        !             5: .SH SYNOPSIS
        !             6: .ft B
        !             7: fsync(fd)
        !             8: .br
        !             9: int fd;
        !            10: .ft R
        !            11: .SH DESCRIPTION
        !            12: .I Fsync
        !            13: causes all modified data and attributes of \fIfd\fP
        !            14: to be moved to a permanent storage device.
        !            15: This normally results in all in-core modified copies
        !            16: of buffers for the associated file to be written to a disk.
        !            17: .PP
        !            18: .I Fsync
        !            19: should be used by programs which require a file to be
        !            20: in a known state; for example in building a simple transaction
        !            21: facility.
        !            22: .SH "RETURN VALUE
        !            23: A 0 value is returned on success.  A \-1 value indicates
        !            24: an error.
        !            25: .SH "ERRORS
        !            26: The \fIfsync\fP fails if:
        !            27: .TP 15
        !            28: [EBADF]
        !            29: \fIFd\fP is not a valid descriptor.
        !            30: .TP 15
        !            31: [EINVAL]
        !            32: \fIFd\fP refers to a socket, not to a file.
        !            33: .SH "SEE ALSO"
        !            34: sync(2), sync(8), update(8)
        !            35: .SH BUGS
        !            36: The current implementation of this call is expensive for large files.

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