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194 lines
5.0 KiB
194 lines
5.0 KiB
'\" t
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.\" Title: zmq_bind
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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_BIND" "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_bind \- accept incoming connections on a socket
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.SH "SYNOPSIS"
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.sp
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\fBint zmq_bind (void \fR\fB\fI*socket\fR\fR\fB, const char \fR\fB\fI*endpoint\fR\fR\fB);\fR
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.SH "DESCRIPTION"
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.sp
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The \fIzmq_bind()\fR function binds the \fIsocket\fR to a local \fIendpoint\fR and then accepts incoming connections on that endpoint\&.
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.sp
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The \fIendpoint\fR is a string consisting of a \fItransport\fR:// followed by an \fIaddress\fR\&. The \fItransport\fR specifies the underlying protocol to use\&. The \fIaddress\fR specifies the transport\-specific address to bind to\&.
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.sp
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0MQ provides the the following transports:
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.PP
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\fItcp\fR
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.RS 4
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unicast transport using TCP, see
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\fBzmq_tcp\fR(7)
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.RE
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.PP
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\fIipc\fR
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.RS 4
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local inter\-process communication transport, see
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\fBzmq_ipc\fR(7)
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.RE
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.PP
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\fIinproc\fR
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.RS 4
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local in\-process (inter\-thread) communication transport, see
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\fBzmq_inproc\fR(7)
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.RE
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.PP
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\fIpgm\fR, \fIepgm\fR
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.RS 4
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reliable multicast transport using PGM, see
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\fBzmq_pgm\fR(7)
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.RE
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.sp
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Every 0MQ socket type except \fIZMQ_PAIR\fR supports one\-to\-many and many\-to\-one semantics\&. The precise semantics depend on the socket type and are defined in \fBzmq_socket\fR(3)\&.
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.sp
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The \fIipc\fR and \fItcp\fR transports accept wildcard addresses: see \fBzmq_ipc\fR(7) and \fBzmq_tcp\fR(7) for details\&.
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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 address syntax may be different for \fIzmq_bind()\fR and \fIzmq_connect()\fR especially for the \fItcp\fR, \fIpgm\fR and \fIepgm\fR transports\&.
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.sp .5v
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.RE
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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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following a \fIzmq_bind()\fR, the socket enters a \fImute\fR state unless or until at least one incoming or outgoing connection is made, at which point the socket enters a \fIready\fR state\&. In the mute state, the socket blocks or drops messages according to the socket type, as defined in \fBzmq_socket\fR(3)\&. By contrast, following a libzmq:zmq_connect[3], the socket enters the \fIready\fR state\&.
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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_bind()\fR function returns zero if successful\&. Otherwise it returns \-1 and sets \fIerrno\fR to one of the values defined below\&.
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.SH "ERRORS"
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.PP
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\fBEINVAL\fR
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.RS 4
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The endpoint supplied is invalid\&.
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.RE
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.PP
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\fBEPROTONOSUPPORT\fR
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.RS 4
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The requested
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\fItransport\fR
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protocol is not supported\&.
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.RE
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.PP
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\fBENOCOMPATPROTO\fR
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.RS 4
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The requested
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\fItransport\fR
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protocol is not compatible with the socket type\&.
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.RE
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.PP
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\fBEADDRINUSE\fR
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.RS 4
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The requested
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\fIaddress\fR
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is already in use\&.
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.RE
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.PP
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\fBEADDRNOTAVAIL\fR
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.RS 4
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The requested
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\fIaddress\fR
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was not local\&.
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.RE
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.PP
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\fBENODEV\fR
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.RS 4
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The requested
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\fIaddress\fR
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specifies a nonexistent interface\&.
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.RE
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.PP
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\fBETERM\fR
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.RS 4
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The 0MQ
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\fIcontext\fR
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associated with the specified
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\fIsocket\fR
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was terminated\&.
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.RE
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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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.PP
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\fBEMTHREAD\fR
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.RS 4
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No I/O thread is available to accomplish the task\&.
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.RE
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.SH "EXAMPLE"
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.PP
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\fBBinding a publisher socket to an in-process and a TCP transport\fR.
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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/* Create a ZMQ_PUB socket */
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void *socket = zmq_socket (context, ZMQ_PUB);
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assert (socket);
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/* Bind it to a in\-process transport with the address \*(Aqmy_publisher\*(Aq */
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int rc = zmq_bind (socket, "inproc://my_publisher");
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assert (rc == 0);
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/* Bind it to a TCP transport on port 5555 of the \*(Aqeth0\*(Aq interface */
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rc = zmq_bind (socket, "tcp://eth0:5555");
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assert (rc == 0);
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.SH "SEE ALSO"
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.sp
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\fBzmq_connect\fR(3) \fBzmq_socket\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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