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.TH "MONGOC_STREAM_READV" "3" "May 07, 2024" "1.27.1" "libmongoc"
.SH SYNOPSIS
.INDENT 0.0
.INDENT 3.5
.sp
.EX
ssize_t
mongoc_stream_readv (mongoc_stream_t *stream,
                     mongoc_iovec_t *iov,
                     size_t iovcnt,
                     size_t min_bytes,
                     int32_t timeout_msec);
.EE
.UNINDENT
.UNINDENT
.SH PARAMETERS
.INDENT 0.0
.IP \(bu 2
\fBstream\fP: A \fI\%mongoc_stream_t\fP\&.
.IP \(bu 2
\fBiov\fP: A vector of \fI\%mongoc_iovec_t\fP\&.
.IP \(bu 2
\fBiovcnt\fP: The number of items in \fBiov\fP\&.
.IP \(bu 2
\fBmin_bytes\fP: The minimum number of bytes to read or failure will be indicated.
.IP \(bu 2
\fBtimeout_msec\fP: A timeout in milliseconds, or 0 to indicate non\-blocking. A negative value with use the default timeout.
.UNINDENT
.sp
This function is identical to \fI\%mongoc_stream_read()\fP except that it takes a \fI\%mongoc_iovec_t\fP to perform gathered I/O.
.sp
\fBWARNING:\fP
.INDENT 0.0
.INDENT 3.5
The \(dqdefault timeout\(dq indicated by a negative value is both unspecified and
unrelated to the documented default values for \fB*TimeoutMS\fP URI options.
To specify a default timeout value for a \fB*TimeoutMS\fP URI option, use the
\fBMONGOC_DEFAULT_*\fP constants defined in \fBmongoc\-client.h\fP\&.
.UNINDENT
.UNINDENT
.SH RETURNS
.sp
\fB>= 0\fP on success, \fB\-1\fP on failure and \fBerrno\fP is set.
.sp
\fBSEE ALSO:\fP
.INDENT 0.0
.INDENT 3.5
.nf
\fI\%mongoc_stream_read()\fP
.fi
.sp
.nf
\fI\%mongoc_stream_write()\fP
.fi
.sp
.nf
\fI\%mongoc_stream_writev()\fP
.fi
.sp
.UNINDENT
.UNINDENT
.SH AUTHOR
MongoDB, Inc
.SH COPYRIGHT
2017-present, MongoDB, Inc
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