How to create a C++ gRPC application

Steps to take in creating a gRPC application from an example in the C++ gRPC package.

The application in this case is the reporting to the control plane of the fill level of an ERSAP backend reassembler's fifo

Start by copying the hello world example as it's the simplest and does what we want

cd  /daqfs/gRPC
mkdir  -p  ejfat/cpp
cd  ejfat/cpp
cp  -r  /daqfs/gRPC/grpc/examples/cpp/helloworld  loadBalancerControl


cmake -DgRPC_INSTALL=ON -DgRPC_BUILD_TESTS=OFF -DCMAKE_INSTALL_PREFIX=$GRPC_INSTALL_DIR -DBUILD_SHARED_LIBS=ON ../..
make -j 4
make install
popd

Currently grpc is installed in /daqfs/gRPC/