.\" Man page generated from reStructuredText. . .TH "MONGOC_GRIDFS_FILE_WRITEV" "3" "Jun 04, 2021" "1.17.6" "libmongoc" .SH NAME mongoc_gridfs_file_writev \- mongoc_gridfs_file_writev() . .nr rst2man-indent-level 0 . .de1 rstReportMargin \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .de1 INDENT .\" .rstReportMargin pre: . RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .\" .rstReportMargin post: .. .de UNINDENT . RE .\" indent \\n[an-margin] .\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] .nr rst2man-indent-level -1 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. .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 .UNINDENT .UNINDENT .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 .\" Generated by docutils manpage writer. .