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'\" t
.\" Title: zmq_close
.\" Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
.\" Date: 04/04/2012
.\" Manual: 0MQ Manual
.\" Source: 0MQ 2.2.0
.\" Language: English
.\"
.TH "ZMQ_CLOSE" "3" "04/04/2012" "0MQ 2\&.2\&.0" "0MQ Manual"
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.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
zmq_close \- close 0MQ socket
.SH "SYNOPSIS"
.sp
\fBint zmq_close (void \fR\fB\fI*socket\fR\fR\fB);\fR
.SH "DESCRIPTION"
.sp
The \fIzmq_close()\fR function shall destroy the socket referenced by the \fIsocket\fR argument\&. Any outstanding messages physically received from the network but not yet received by the application with \fIzmq_recv()\fR shall be discarded\&. The behaviour for discarding messages sent by the application with \fIzmq_send()\fR but not yet physically transferred to the network depends on the value of the \fIZMQ_LINGER\fR socket option for the specified \fIsocket\fR\&.
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
.sp
The default setting of \fIZMQ_LINGER\fR does not discard unsent messages; this behaviour may cause the application to block when calling \fIzmq_term()\fR\&. For details refer to \fBzmq_setsockopt\fR(3) and \fBzmq_term\fR(3)\&.
.sp .5v
.RE
.SH "RETURN VALUE"
.sp
The \fIzmq_close()\fR function shall return zero if successful\&. Otherwise it shall return \-1 and set \fIerrno\fR to one of the values defined below\&.
.SH "ERRORS"
.PP
\fBENOTSOCK\fR
.RS 4
The provided
\fIsocket\fR
was invalid\&.
.RE
.SH "SEE ALSO"
.sp
\fBzmq_socket\fR(3) \fBzmq_term\fR(3) \fBzmq_setsockopt\fR(3) \fBzmq\fR(7)
.SH "AUTHORS"
.sp
This manual page was written by the 0MQ community\&.
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