ipc-sample
note: checkout with submodules.
Inter-Process Communications (IPC)
Aeron is an efficient message transport library for C++ and Java. It supports various channel configuration options including UDP ("udp://...." channels) and shared memory ("aeron:ipc" channel). Each channel can have multiple streams of different data, set up using "stream id".
It requires 3 parts to run
- Driver: broker that often runs in a separate process
- Publisher: sends binary data on a channel and stream id (in this case image data from C++)
- Subscriber: receives binary data (in this case a JavaFX UI)
Testing
- Download this test version of Scope: https://hebifiles.z13.web.core.windows.net/internal/tpac/scope-1.7.5-999-windows-amd64_TPAC.zip
- run
bin/AeronDriver.exe(driver) - run
bin/TfmImageViewer.exe(subscriber) - build and run the cpp main. The image viewer should show a color changing image.
Serialization
For converting the image data to a binary format I'm currently using protobuf v3.2.0. It is a relatively old version, but I didn't have time to figure out an appropriate cmake configuration for a new version (and it doesn't matter for this demo).
The protobuf files can be re-generated using
cd protocol
protoc-3.2.0-win32.exe --cpp_out=. rima.proto