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.TH "MONGOC_GRIDFS_FILE_WRITEV" "3" "Jun 04, 2021" "1.17.6" "libmongoc"
.SH NAME
mongoc_gridfs_file_writev \- mongoc_gridfs_file_writev()
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.SH SYNOPSIS
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ssize_t
mongoc_gridfs_file_writev (mongoc_gridfs_file_t *file,
                           const mongoc_iovec_t *iov,
                           size_t iovcnt,
                           uint32_t timeout_msec);
.ft P
.fi
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.SH PARAMETERS
.INDENT 0.0
.IP \(bu 2
\fBfile\fP: A \fBmongoc_gridfs_file_t\fP\&.
.IP \(bu 2
\fBiov\fP: An array of \fBmongoc_iovec_t\fP\&.
.IP \(bu 2
\fBiovcnt\fP: The number of elements in \fBiov\fP\&.
.IP \(bu 2
\fBtimeout_msec\fP: Unused.
.UNINDENT
.SH DESCRIPTION
.sp
Performs a gathered write to the underlying gridfs file.
.sp
The \fBtimeout_msec\fP parameter is unused.
.sp
Modifying GridFS files is NOT thread\-safe. Only one thread or process can access a GridFS file while it is being modified.
.SH RETURNS
.sp
Returns the number of bytes written, or \-1 on failure. Use \fBmongoc_gridfs_file_error\fP to retrieve error details.
.SH AUTHOR
MongoDB, Inc
.SH COPYRIGHT
2017-present, MongoDB, Inc
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