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authorMartin Lucina <mato@kotelna.sk>2010-05-28 01:38:43 +0200
committerMartin Lucina <mato@kotelna.sk>2010-05-28 01:38:43 +0200
commitda37c45b0c7200eea96118952e671972b71df4ce (patch)
tree7330c7f9d92621745a3d183ff888e6828b725114
parent74f1a4a579d3b09b3420092d9f076827be31c4e7 (diff)
Clarify zmq_bind/zmq_connect
Use the term 'endpoint' correctly, and drop the nonsense about local/remote addresses which doesn't clearly explain what is going on
-rw-r--r--doc/zmq_bind.txt28
-rw-r--r--doc/zmq_connect.txt26
2 files changed, 29 insertions, 25 deletions
diff --git a/doc/zmq_bind.txt b/doc/zmq_bind.txt
index 983ce93..c76d05a 100644
--- a/doc/zmq_bind.txt
+++ b/doc/zmq_bind.txt
@@ -4,34 +4,36 @@ zmq_bind(3)
NAME
----
-zmq_bind - assign a local address to a socket
+zmq_bind - accept connections on a socket
SYNOPSIS
--------
-*int zmq_bind (void '*socket', const char '*address');*
+*int zmq_bind (void '*socket', const char '*endpoint');*
DESCRIPTION
-----------
-The _zmq_bind()_ function shall assign a local address specified by the
-'address' argument to the socket referenced by the 'socket' argument.
+The _zmq_bind()_ function shall create an endpoint for accepting connections
+and bind it to the socket referenced by the 'socket' argument.
-The 'address' argument is a string consisting of two parts as follows:
-'transport'://'endpoint'. The 'transport' part specifies the underlying
-transport protocol to use. The meaning of the 'endpoint' part is specific to
+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]
-'ipc':: local inter-process communication transport, see linkzmq:zmq_ipc[7]
-'inproc':: local in-process (inter-thread) communication transport, see linkzmq:zmq_inproc[7]
-A single socket may have an arbitrary number of local addresses assigned to it
-using _zmq_bind()_, while also being connected to an arbitrary number of peer
-addresses using _zmq_connect()_.
+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.
RETURN VALUE
@@ -63,7 +65,7 @@ EXAMPLE
/* Create a ZMQ_PUB socket */
void *socket = zmq_socket (context, ZMQ_PUB);
assert (socket);
-/* Bind it to a in-process transport with the endpoint 'my_publisher' */
+/* Bind it to a in-process transport with the address 'my_publisher' */
int rc = zmq_bind (socket, "inproc://my_publisher");
assert (rc == 0);
/* Bind it to a TCP transport on port 5555 of the 'eth0' interface */
diff --git a/doc/zmq_connect.txt b/doc/zmq_connect.txt
index d31b87b..2bc8e4f 100644
--- a/doc/zmq_connect.txt
+++ b/doc/zmq_connect.txt
@@ -4,34 +4,36 @@ zmq_connect(3)
NAME
----
-zmq_connect - connect a socket to a peer address
+zmq_connect - connect a socket
SYNOPSIS
--------
-*int zmq_connect (void '*socket', const char '*address');*
+*int zmq_connect (void '*socket', const char '*endpoint');*
DESCRIPTION
-----------
The _zmq_connect()_ function shall connect the socket referenced by the
-'socket' argument to a peer address specified by the 'address' argument.
+'socket' argument to the endpoint specified by the 'endpoint' argument.
-The 'address' argument is a string consisting of two parts as follows:
-'transport'`://`'endpoint'. The 'transport' part specifies the underlying
-transport protocol to use. The meaning of the 'endpoint' part is specific to
+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]
-'ipc':: local inter-process communication transport, see linkzmq:zmq_ipc[7]
-'inproc':: local in-process (inter-thread) communication transport, see linkzmq:zmq_inproc[7]
-A single socket may be connected to an arbitrary number of peer addresses using
-_zmq_connect()_, while also having an arbitrary number of local addresses
-assigned to it using _zmq_bind()_.
+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
@@ -61,7 +63,7 @@ EXAMPLE
/* Create a ZMQ_SUB socket */
void *socket = zmq_socket (context, ZMQ_SUB);
assert (socket);
-/* Connect it to an in-process transport with the endpoint 'my_publisher' */
+/* 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 */