diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/zmq_socket.txt | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/doc/zmq_socket.txt b/doc/zmq_socket.txt index 41e62c5..2156af2 100644 --- a/doc/zmq_socket.txt +++ b/doc/zmq_socket.txt @@ -216,22 +216,24 @@ is connected to at least one _node_. When a pipeline stage is connected to multiple _nodes_ data is load-balanced among all connected _nodes_. -ZMQ_DOWNSTREAM -^^^^^^^^^^^^^^ -A socket of type 'ZMQ_DOWNSTREAM' is used by a pipeline _node_ to send messages +ZMQ_PUSH +^^^^^^^^ +A socket of type 'ZMQ_PUSH' is used by a pipeline _node_ to send messages to downstream pipeline _nodes_. Messages are load-balanced to all connected downstream _nodes_. The _zmq_recv()_ function is not implemented for this socket type. -When a 'ZMQ_DOWNSTREAM' socket enters an exceptional state due to having -reached the high water mark for all downstream _nodes_, or if there are no -downstream _nodes_ at all, then any linkzmq:zmq_send[3] operations on the -socket shall block until the exceptional state ends or at least one downstream -_node_ becomes available for sending; messages are not discarded. +When a 'ZMQ_PUSH' socket enters an exceptional state due to having reached the +high water mark for all downstream _nodes_, or if there are no downstream +_nodes_ at all, then any linkzmq:zmq_send[3] operations on the socket shall +block until the exceptional state ends or at least one downstream _node_ +becomes available for sending; messages are not discarded. + +Deprecated alias: 'ZMQ_DOWNSTREAM'. [horizontal] -.Summary of ZMQ_DOWNSTREAM characteristics -Compatible peer sockets:: 'ZMQ_UPSTREAM' +.Summary of ZMQ_PUSH characteristics +Compatible peer sockets:: 'ZMQ_PULL' Direction:: Unidirectional Send/receive pattern:: Send only Incoming routing strategy:: N/A @@ -239,16 +241,18 @@ Outgoing routing strategy:: Load-balanced ZMQ_HWM option action:: Block -ZMQ_UPSTREAM -^^^^^^^^^^^^ -A socket of type 'ZMQ_UPSTREAM' is used by a pipeline _node_ to receive -messages from upstream pipeline _nodes_. Messages are fair-queued from among -all connected upstream _nodes_. The _zmq_send()_ function is not implemented -for this socket type. +ZMQ_PULL +^^^^^^^^ +A socket of type 'ZMQ_PULL' is used by a pipeline _node_ to receive messages +from upstream pipeline _nodes_. Messages are fair-queued from among all +connected upstream _nodes_. The _zmq_send()_ function is not implemented for +this socket type. + +Deprecated alias: 'ZMQ_UPSTREAM'. [horizontal] -.Summary of ZMQ_UPSTREAM characteristics -Compatible peer sockets:: 'ZMQ_DOWNSTREAM' +.Summary of ZMQ_PULL characteristics +Compatible peer sockets:: 'ZMQ_PUSH' Direction:: Unidirectional Send/receive pattern:: Receive only Incoming routing strategy:: Fair-queued |