'\" t
.\"     Title: zmq_msg_more
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 09/06/2020
.\"    Manual: 0MQ Manual
.\"    Source: 0MQ 4.3.1
.\"  Language: English
.\"
.TH "ZMQ_MSG_MORE" "3" "09/06/2020" "0MQ 4\&.3\&.1" "0MQ Manual"
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.SH "NAME"
zmq_msg_more \- indicate if there are more message parts to receive
.SH "SYNOPSIS"
.sp
\fBint zmq_msg_more (zmq_msg_t \fR\fB\fI*message\fR\fR\fB);\fR
.SH "DESCRIPTION"
.sp
The \fIzmq_msg_more()\fR function indicates whether this is part of a multi\-part message, and there are further parts to receive\&. This method can safely be called after \fIzmq_msg_close()\fR\&. This method is identical to \fIzmq_msg_get()\fR with an argument of ZMQ_MORE\&.
.SH "RETURN VALUE"
.sp
The \fIzmq_msg_more()\fR function shall return zero if this is the final part of a multi\-part message, or the only part of a single\-part message\&. It shall return 1 if there are further parts to receive\&.
.SH "EXAMPLE"
.PP
\fBReceiving a multi-part message\fR. 
.sp
.if n \{\
.RS 4
.\}
.nf
zmq_msg_t part;
while (true) {
    //  Create an empty 0MQ message to hold the message part
    int rc = zmq_msg_init (&part);
    assert (rc == 0);
    //  Block until a message is available to be received from socket
    rc = zmq_msg_recv (socket, &part, 0);
    assert (rc != \-1);
    if (zmq_msg_more (&part))
        fprintf (stderr, "more\en");
    else {
        fprintf (stderr, "end\en");
        break;
    }
    zmq_msg_close (&part);
}
.fi
.if n \{\
.RE
.\}
.sp
.SH "SEE ALSO"
.sp
\fBzmq_msg_get\fR(3) \fBzmq_msg_set\fR(3) \fBzmq_msg_init\fR(3) \fBzmq_msg_close\fR(3) \fBzmq\fR(7)
.SH "AUTHORS"
.sp
This page was written by the 0MQ community\&. To make a change please read the 0MQ Contribution Policy at \m[blue]\fBhttp://www\&.zeromq\&.org/docs:contributing\fR\m[]\&.