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Clarified ZMQ_IDENTITY doc for duplicate identities

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This commit is contained in:
Pieter Hintjens 2014-01-01 13:42:49 +01:00
parent f5bc82d9a4
commit 833a3c52d2
1 changed files with 7 additions and 10 deletions
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17
doc/zmq_setsockopt.txt
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@ -129,22 +129,19 @@ Applicable socket types:: ZMQ_SUB
ZMQ_IDENTITY: Set socket identity
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The 'ZMQ_IDENTITY' option shall set the identity of the specified 'socket'.
Socket identity is used only by request/reply pattern. Namely, it can be used
in tandem with ROUTER socket to route messages to the peer with specific
identity.
The 'ZMQ_IDENTITY' option shall set the identity of the specified 'socket'
when connecting to a ROUTER socket. The identity should be from 1 to 255
bytes long and MAY NOT start with binary zero.
Identity should be at least one byte and at most 255 bytes long. Identities
starting with binary zero are reserved for use by 0MQ infrastructure.
If two peers use the same identity when connecting to a third peer, the
results shall be undefined.
If two clients use the same identity when connecting to a ROUTER, the
ROUTER socket shall accept only the first such client and reject the
others.
[horizontal]
Option value type:: binary data
Option value unit:: N/A
Default value:: NULL
Applicable socket types:: all
Applicable socket types:: ZMQ_REQ, ZMQ_REP, ZMQ_ROUTER, ZMQ_DEALER.
ZMQ_RATE: Set multicast data rate