Fast Event System

Coverage:

gcc 4.9 / clang 3.6:

MSVC 2015:

quick-start

$ git clone --recursive [e-mail]:makiolo/fast-event-system.git fes
$ cd fes
$ npm install
$ npm test

Very simple to use

Fast event system is a library for resolve observer pattern in a functional way. Is a library very easy to use, only have 3 objects: sync, async_fast and async_delay.

sync

I will explain sync object with minimal examples:

// instanciate 
fes::sync<bool> key_A;

Now, you can connect functors, lambdas ...:

key_A.connect([](bool press)
    {
        if(press)
            std::cout << "pressed key A" << std::endl;
        else
            std::cout << "released key A" << std::endl;
    });

And finally, something notify using operator() and all functors connected will receive this.

key_A(true);  // notify to subscribers 

All objetcs in fes, use variadic templates, new interfaces can be created in compile time:

fes::sync<std::string, int, std::string> civiian;
civiian.connect([](const std::string& name, int age, const std::string& country)
    {
        // process input ... 
        std::cout << "new civiian registered" << std::endl;
    });

async_fast

Works equal than sync but data is saved in buffer.

key_A(true);  // saved in queue 
key_A(true);  // saved in queue 
key_A(true);  // saved in queue 

Now, we have three messages waiting in queue. For dispatching, type:

key_A.update();  // notify to subscribers 

async_delay

Works equal than async_fast but data can send delayed. The time delayed is specified in first parameter of operator() with help of fes::deltatime():

key_A(fes::deltatime(2000), true);  // saved in queue (with your delayed time) 

We can use .update() for dispatching, now have a parameter for config timeout:

// 2000 ms after, message is notify to subscribers 
key_A.update(fes::deltatime(5000));

Previous line, wait 5000 ms or finish when one message is dispatched. For default, timeout is 16ms. For dispatching a fixed time(dispathing multiples messages), you can use .fortime():

key_A.fortime(fes::deltatime(5000));

Documentation under construction