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Dennis Klein 3781495d29 build(examples): Deduplicate code into add_example helper
2023-03-06 15:32:48 +01:00
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CMakeLists.txt build(examples): Deduplicate code into add_example helper 2023-03-06 15:32:48 +01:00
ex-multipart-multiple-endpoints.json Refactor the examples after move from FairRoot 2018-05-02 16:12:57 +02:00
fairmq-start-ex-multipart.sh.in Include empty parts in multipart example/test 2019-10-29 20:06:31 +01:00
Header.h reduce noise in examples 2021-05-13 23:00:35 +02:00
README.md Don't use to-be-deprecated names 2022-01-24 06:40:24 +01:00
sampler.cxx Don't use to-be-deprecated names 2022-01-24 06:40:24 +01:00
sink.cxx Example tests: check exit codes 2023-02-24 14:28:18 +01:00
test-ex-multipart.sh.in feat(ofi)!: Remove ofi transport 2023-03-02 11:20:35 +01:00

README.md

Sending Multipart messages

A topology of two devices - Sampler and Sink, communicating with PUSH-PULL pattern.

The Sampler sends a multipart message to the Sink, consisting of two message parts - header and body.

Each message part is a regular fair::mq::Message. To combine them into a multi-part message use fair::mq::Parts. Add messages to fair::mq::Parts with AddPart method.

All parts are guaranteed to be delivered together. The Receive call in the sink will recive the entire parts structure.

The header contains a simple data structure with one integer. The integer in this structure is used as a stop flag for the sink. As long as its value is 0, the Sink will keep processing the data. Once its value is 1, the data handler method of the Sink will return false, which will exit the RUNNING state of the device.