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130 lines
3.6 KiB
130 lines
3.6 KiB
6 years ago
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'\" t
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.\" Title: zmq_ctx_term
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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_CTX_TERM" "3" "09/14/2016" "0MQ 4\&.1\&.5" "0MQ Manual"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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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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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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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_ctx_term \- destroy a 0MQ context
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.SH "SYNOPSIS"
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.sp
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\fBint zmq_ctx_term (void \fR\fB\fI*context\fR\fR\fB);\fR
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.SH "DESCRIPTION"
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.sp
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The \fIzmq_ctx_term()\fR function shall destroy the 0MQ context \fIcontext\fR\&.
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.sp
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Context termination is performed in the following steps:
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.sp
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.RS 4
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.ie n \{\
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\h'-04' 1.\h'+01'\c
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.\}
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.el \{\
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.sp -1
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.IP " 1." 4.2
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.\}
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Any blocking operations currently in progress on sockets open within
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\fIcontext\fR
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shall return immediately with an error code of ETERM\&. With the exception of
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\fIzmq_close()\fR, any further operations on sockets open within
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\fIcontext\fR
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shall fail with an error code of ETERM\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04' 2.\h'+01'\c
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.\}
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.el \{\
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.sp -1
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.IP " 2." 4.2
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.\}
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After interrupting all blocking calls,
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\fIzmq_ctx_term()\fR
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shall
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\fIblock\fR
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until the following conditions are satisfied:
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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All sockets open within
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\fIcontext\fR
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have been closed with
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\fIzmq_close()\fR\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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For each socket within
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\fIcontext\fR, all messages sent by the application with
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\fIzmq_send()\fR
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have either been physically transferred to a network peer, or the socket\(cqs linger period set with the
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\fIZMQ_LINGER\fR
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socket option has expired\&.
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.RE
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.RE
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.sp
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For further details regarding socket linger behavior refer to the \fIZMQ_LINGER\fR option in \fBzmq_setsockopt\fR(3)\&.
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.sp
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This function replaces the deprecated function \fBzmq_term\fR(3)\&.
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.SH "WARNING"
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.sp
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As \fIZMQ_LINGER\fR defaults to "infinite", by default this function will block indefinitely if there are any pending connects or sends\&. We strongly recommend to (a) set \fIZMQ_LINGER\fR to zero on all sockets and (b) close all sockets, before calling this function\&.
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.SH "RETURN VALUE"
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.sp
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The \fIzmq_ctx_term()\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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\fBEFAULT\fR
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.RS 4
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The provided
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\fIcontext\fR
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was invalid\&.
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.RE
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.PP
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\fBEINTR\fR
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.RS 4
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Termination was interrupted by a signal\&. It can be restarted if needed\&.
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.RE
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.SH "SEE ALSO"
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.sp
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\fBzmq\fR(7) \fBzmq_init\fR(3) \fBzmq_close\fR(3) \fBzmq_setsockopt\fR(3)
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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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