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							70 lines
						
					
					
						
							2.6 KiB
						
					
					
				'\" t
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.\"     Title: zmq_close
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.\"    Author: [see the "AUTHORS" section]
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.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
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.\"      Date: 09/14/2016
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.\"    Manual: 0MQ Manual
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.\"    Source: 0MQ 4.1.5
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.\"  Language: English
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.\"
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.TH "ZMQ_CLOSE" "3" "09/14/2016" "0MQ 4\&.1\&.5" "0MQ Manual"
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.\" * Define some portability stuff
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el       .ds Aq '
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.\" * set default formatting
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.nh
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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zmq_close \- close 0MQ socket
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.SH "SYNOPSIS"
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.sp
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\fBint zmq_close (void \fR\fB\fI*socket\fR\fR\fB);\fR
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.SH "DESCRIPTION"
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.sp
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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\&.
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.if n \{\
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.sp
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.\}
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.RS 4
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.it 1 an-trap
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.nr an-no-space-flag 1
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.nr an-break-flag 1
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.br
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.ps +1
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\fBNote\fR
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.ps -1
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.br
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.sp
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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)\&.
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.sp .5v
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.RE
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.SH "RETURN VALUE"
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.sp
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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\&.
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.SH "ERRORS"
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.PP
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\fBENOTSOCK\fR
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.RS 4
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The provided
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\fIsocket\fR
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was invalid\&.
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.RE
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.SH "SEE ALSO"
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.sp
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\fBzmq_socket\fR(3) \fBzmq_term\fR(3) \fBzmq_setsockopt\fR(3) \fBzmq\fR(7)
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.SH "AUTHORS"
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.sp
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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[]\&.
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