libqi

April 25, 2018 · View on GitHub

libqi is a middle-ware framework that provides RPC, type-erasure, cross-language interoperability, OS abstractions, logging facilities, asynchronous task management, dynamic module loading.

Compilation

To compile libqi you need qibuild which give some cmake functions used in libqi's CMakeLists.txt.

.. code-block:: sh

pip2 install --user qibuild

git clone git@github.com:aldebaran/libqi.git cd libqi

mkdir BUILD && cd BUILD cmake .. -DQI_WITH_TESTS=OFF make make install DESTDIR=./output

Example

The following example shows some features of the framework, please refer to the documentation for further details.

.. code-block:: cpp

#include <boost/make_shared.hpp> #include <qi/log.hpp> #include <qi/applicationsession.hpp> #include <qi/anyobject.hpp>

qiLogCategory("myapplication");

class MyService { public: void myFunction(int val) { qiLogInfo() << "myFunction called with " << val; } qi::Signal eventTriggered; qi::Property angle; };

// register the service to the type-system QI_REGISTER_OBJECT(MyService, myFunction, eventTriggered, angle);

void print() { qiLogInfo() << "print was called"; }

int main(int argc, char* argv[]) { qi::ApplicationSession app(argc, argv);

// connect the session included in the app
app.start();

qi::SessionPtr session = app.session();

// register our service
session->registerService("MyService", boost::make_shared<MyService>());

// get our service through the middleware
qi::AnyObject obj = session->service("MyService");

// call myFunction
obj.call<void>("myFunction", 42);

// call print in 2 seconds
qi::async(&print, qi::Seconds(2));

// block until ctrl-c
app.run();

}

You can then run the program with:

.. code-block:: console

./myservice --qi-standalone # for a standalone server ./myservice --qi-url tcp://somemachine:9559 # to connect to another galaxy of sessions

Compilation

Example

Links