A couple of things are needed to ensure examples can be built as
external projects.
Change FindWrapgRPCPlugin to look for a cache var in addition to _ROOT
env var, because we can't easily pass env vars to external projects.
Ensure one of the non-Qt test libraries is built with at least C++17
to avoid compilation errors.
Derive a path to absl_ROOT from gRPC_ROOT assuming they are in the
same parent directory.
Use the new QT_EXAMPLE_CMAKE_VARS_TO_PASS variable introduced in
qtbase to allow passing additional cmake variables to all examples
that are built as external projects.
We need to use it for all 3rd party dependencies that have to be
found by the examples.
Make sure to look for GrpcTools package for magic8ball example, to
ensure the public api is available when cross-compiling, but there
is no target native grpc library available.
Task-number: QTBUG-90820
Task-number: QTBUG-96232
Change-Id: I4420b7348c6a3b02b5516f34a96b19cceaccc649
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Add the protobuf example that emulates the work of dummy sensors that
send data to the sensor client. The example uses UDP sockets to send
datagrams that contain protobuf messages. Messages consist of two
layers:
- The Type-Length-Value wrapping message that specifies the the
message type and allows to verify the message size.
- Sensor message that contains a sensor data.
The example intends to show how to generate the code from the protobuf
schema and use it in simple UDP signalling protocol on both sender and
receiver sides.
Both client and emulator have simple UI implemented using QtWidgets.
Task-number: QTBUG-109598
Pick-to: 6.5
Change-Id: I13e2c5bcd995b8aa6d873c495a7bd83f6651a061
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Alexandru Croitor
Tatiana Borisova
Alexey Edelev