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.TH "MONGOC_GRIDFS_FILE_READV" "3" "Jun 04, 2021" "1.17.6" "libmongoc"
.SH NAME
mongoc_gridfs_file_readv \- mongoc_gridfs_file_readv()
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.SH SYNOPSIS
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.INDENT 3.5
.sp
.nf
.ft C
ssize_t
mongoc_gridfs_file_readv (mongoc_gridfs_file_t *file,
                          mongoc_iovec_t *iov,
                          size_t iovcnt,
                          size_t min_bytes,
                          uint32_t timeout_msec);
.ft P
.fi
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.SH PARAMETERS
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.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
\fBmin_bytes\fP: The minimum number of bytes that must be read or an error will be synthesized.
.IP \(bu 2
\fBtimeout_msec\fP: Unused.
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.SH DESCRIPTION
.sp
This function performs a scattered read from \fBfile\fP, potentially blocking to read from the MongoDB server.
.sp
The \fBtimeout_msec\fP parameter is unused.
.SH RETURNS
.sp
Returns the number of bytes read, 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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