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FairMQ/examples/MQ/6-multiple-channels
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Alexey Rybalchenko da10c64800 Enable new callback API 
- OnData() channel data handler.
 - ConditionalRun() for devices without incoming data.
 - Header file with common main(), to be extended with getDevice/addCustomOptions.
 - Update examples (MQ/Tutorial3) to use the new API and config.
 - NewSimpleMessage() for simpler creation of small messages (additional copy).
 - Replace SetProperty/GetProperty with fConfig access.
 - Runtime configurable channel names for common devices.
 - Configurable logging interval per channel.
 - FairMQMultiplier for distributing same data to multiple outputs.
 - Cleanup state machine messages.
 - Cmd option to toggle signal handling.
 - Simpler API for send/receive timeouts.
 - Enable --log-to-file.
 - Fix coverity issues, warnings.
 - Various code cleanup and minor tweaks.
2018-05-02 16:12:57 +02:00
..
CMakeLists.txt Modified the ROOTMacros.cmake to allow GENERATE_EXECUTABLE() 2018-05-02 16:12:57 +02:00
ex6-multiple-channels.json FairMQ: Extend Multipart and messaging API 2018-05-02 16:12:57 +02:00
FairMQExample6Broadcaster.cxx Enable new callback API 2018-05-02 16:12:57 +02:00
FairMQExample6Broadcaster.h Enable new callback API 2018-05-02 16:12:57 +02:00
FairMQExample6Sampler.cxx Enable new callback API 2018-05-02 16:12:57 +02:00
FairMQExample6Sampler.h Enable new callback API 2018-05-02 16:12:57 +02:00
FairMQExample6Sink.cxx Enable new callback API 2018-05-02 16:12:57 +02:00
FairMQExample6Sink.h Rename /example to /examples and move MQ examples in it 2018-05-02 16:12:57 +02:00
README.md Rename /example to /examples and move MQ examples in it 2018-05-02 16:12:57 +02:00
runExample6Broadcaster.cxx Enable new callback API 2018-05-02 16:12:57 +02:00
runExample6Sampler.cxx Enable new callback API 2018-05-02 16:12:57 +02:00
runExample6Sink.cxx Enable new callback API 2018-05-02 16:12:57 +02:00
startMQEx6.sh.in Modified the ROOTMacros.cmake to allow GENERATE_EXECUTABLE() 2018-05-02 16:12:57 +02:00

README.md

Example 6: Multiple Channels

This example demonstrates how to work with multiple channels and multiplex between them.

A topology of three devices - Sampler, Sink and Broadcaster. The Sampler sends data to the Sink via the PUSH-PULL pattern. The Broadcaster device sends a message to both Sampler and Sink containing a string "OK" every second. The Broadcaster sends the message via PUB pattern. Both Sampler and Sink, besides doing their PUSH-PULL job, listen via SUB to the Broadcaster.

The multiplexing between their data channels and the broadcast channels happens with FairMQPoller.