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diff --git a/doc/zmq_connect.txt b/doc/zmq_connect.txt new file mode 100644 index 0000000..0061c37 --- /dev/null +++ b/doc/zmq_connect.txt @@ -0,0 +1,85 @@ +zmq_connect(3) +============== + + +NAME +---- +zmq_connect - connect a socket + + +SYNOPSIS +-------- +*int zmq_connect (void '*socket', const char '*endpoint');* + + +DESCRIPTION +----------- +The _zmq_connect()_ function shall connect the socket referenced by the +'socket' argument to the endpoint specified by the 'endpoint' argument. + +The 'endpoint' argument is a string consisting of two parts as follows: +'transport'`://`'address'. The 'transport' part specifies the underlying +transport protocol to use. The meaning of the 'address' part is specific to +the underlying transport protocol selected. + +The following transports are defined: + +'inproc':: local in-process (inter-thread) communication transport, see linkzmq:zmq_inproc[7] +'ipc':: local inter-process communication transport, see linkzmq:zmq_ipc[7] +'tcp':: unicast transport using TCP, see linkzmq:zmq_tcp[7] +'pgm', 'epgm':: reliable multicast transport using PGM, see linkzmq:zmq_pgm[7] + +With the exception of 'ZMQ_PAIR' sockets, a single socket may be connected to +multiple endpoints using _zmq_connect()_, while simultaneously accepting +incoming connections from multiple endpoints bound to the socket using +_zmq_bind()_. Refer to linkzmq:zmq_socket[3] for a description of the exact +semantics involved when connecting or binding a socket to multiple endpoints. + +NOTE: The connection will not be performed immediately but as needed by 0MQ. +Thus a successful invocation of _zmq_connect()_ does not indicate that a +physical connection was or can actually be established. + + +RETURN VALUE +------------ +The _zmq_connect()_ function shall return zero if successful. Otherwise it +shall return `-1` and set 'errno' to one of the values defined below. + + +ERRORS +------ +*EPROTONOSUPPORT*:: +The requested 'transport' protocol is not supported. +*ENOCOMPATPROTO*:: +The requested 'transport' protocol is not compatible with the socket type. +*ETERM*:: +The 0MQ 'context' associated with the specified 'socket' was terminated. + + +EXAMPLE +------- +.Connecting a subscriber socket to an in-process and a TCP transport +---- +/* Create a ZMQ_SUB socket */ +void *socket = zmq_socket (context, ZMQ_SUB); +assert (socket); +/* Connect it to an in-process transport with the address 'my_publisher' */ +int rc = zmq_connect (socket, "inproc://my_publisher"); +assert (rc == 0); +/* Connect it to the host server001, port 5555 using a TCP transport */ +rc = zmq_connect (socket, "tcp://server001:5555"); +assert (rc == 0); +---- + + +SEE ALSO +-------- +linkzmq:zmq_bind[3] +linkzmq:zmq_socket[3] +linkzmq:zmq[7] + + +AUTHORS +------- +The 0MQ documentation was written by Martin Sustrik <sustrik@250bpm.com> and +Martin Lucina <mato@kotelna.sk>. |