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up-vsomeip-helloworld

up-vsomeip-helloworld

COVESA/uServices HelloWorld example for mechatronics hello world uService and client using vsomeip.

This project provides SOME/IP Hello Service and Client, using a wire format suitable for HelloWorld uservice.

Hello Service is implemented using vsomeip and provides:

  • SayHello request/response method, that echoes back: "Hello " + request string.

  • Timer events, compatible with TimeOfDay proto. Each timer sends SOME/IP event with specified period.

    NOTE: In addition to to hello_world_service definitions, 1ms and 10ms timers are supported.

  • RPC call and event summary is printed upon termination.

Hello examples may be used to simulate AUTOSAR SOME/IP application or compare against another SOME/IP library.

Building Hello Service

Hello service CMakeLists.txt fetches specified vsomeip tag and patches it (as some problems were found).

E.g. to work with AUTOSAR SOME/IP apps, the following patch may be needed.

NOTE: vsomeip v3.1.20.3 is the old stable version, being changed a lot recently, but a recent 3.4.10 version is also supported.

Prerequisites

  • Tested on Ubuntu 20.04,
  • Docker with buildx support (if docker images are needed). How-To
  • C++ build dependencies (local builds):
    sudo apt-get update
    sudo apt-get install -y git cmake g++ build-essential jq
  • boost dev packages (local builds):
    sudo apt-get install -y --no-install-recommends libboost-atomic-dev libboost-system-dev libboost-thread-dev libboost-filesystem-dev
  • QEMU and binfmt-support (if you need to build/run arm64 images):
    docker run --rm --privileged multiarch/qemu-user-static:register
    NOTE: aarch64 vsomeip binaries do not work in QEMU.

Build Docker images

You can use ./docker-build.sh script:

USAGE: ./docker-build.sh [OPTIONS] TARGETS

Standalone build helper for Hello Service/Client container.

OPTIONS:
  -l, --local      local docker import (does not push to ttl.sh)
  -v, --verbose    enable plain docker output and disable cache
      --help       show help

TARGETS:
  amd64|arm64    Target arch to build for (default: amd64)

By default it pushes the image to ttl.sh with 24h validity (could be extended to use github actions if needed)

Building with cmake

mkdir build
cd build/
cmake -DCMAKE_INSTALL_PREFIX=`pwd`/install ..
cmake --build . -j --target install

NOTE: Provided start scripts are meant to be executed from ${CMAKE_INSTALL_PREFIX}/bin

Running Hello examples

vsomeip has local (Unix sockets based) and remote (TCP/UDP) endpoint mode.

To enable remote endpoint mode config files (e.g. hello_service.json) and set host IP as unicast value. This is automatically handled by setup scripts in bin/ (e.g. setup-service.sh).

Host IP is replaced by jq.

For more details about arguments / environment variables you can check ./hello_service --help and ./hello_client --help.

NOTE: Due to lacking APIs to change TCP/UDP setup, hello_service is configured to offer both TCP and UDP ports for its service, otherwise it would need another config or jq replacement.

Running Hello Service/Client in Docker network

You need to build local Docker image or use existing ttl.sh image (valid for 24h). After successful build ./docker-build.sh also shows example client/service startup commands.

Docker image includes both Hello Service and Client to test against each other. By default docker entrypoint sets the environment and passes arguments for Hello Service, but if you supply --client as 1st argument, it sets up the Hello Client.

Example usage (dumped from ./docker-build.sh):

### Image pushed to: ttl.sh/hello_service-amd64-b6c68d18-7ba8-492f-b88e-57a9c3b711a7:24h

- To run Hello Service:
  $ docker run -e DEBUG=0 -it --rm ttl.sh/hello_service-amd64-b6c68d18-7ba8-492f-b88e-57a9c3b711a7:24h --timers 1s:1,1m:1,10ms:1,1ms:1

- To run Hello Client:
  $ docker run -e DEBUG=0 -it --rm ttl.sh/hello_service-amd64-b6c68d18-7ba8-492f-b88e-57a9c3b711a7:24h --client --sub --req 100 DockerClient!

# If you need to connect to external SOME/IP add --network=host after 'docker run'

Running standalone examples

Before running the binaries you can source the setup-*.sh helper scripts in bin/.

Setup scrips set VSOMEIP_* environment for the respective example and modify it's config file unicast with the real host IP.

NOTE: Those scripts get installed from cmake, and it is better to run everything from <INSTALL>/bin directory. Don't forget to source the script again after cmake install, it will also replace config files with default unicast: 127.0.0.1 value.

Running Hello Service

By default only 1min and 1sec timers are enabled, if you want to enable all timers:

cd ./build/install/bin
. setup-service.sh
./hello_service --timers 1m:1,1s:1,10ms:1,1ms:1

Running Hello client

NOTE: Due to vsomeip architecture if you want to run Service and the Client on the same host, you must use a dedicated "proxy" config, so the client routes through the service.

  • Running client on a different host:
    cd ./build/install/bin
    . setup-client.sh
    ./hello_client --req 100 "ClientHost" --sub
  • Running client on a the same host (as hello service):
    cd ./build/install/bin
    . setup-client-proxy.sh
    ./hello_client --req 100 "SharedHost" --sub

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