libeem
A set of C macros used to transform any struct into an event emitter!
Why
By programming in an event-driven way, you often need to use some callbacks
and/or fire events in your application.
I created this project in order to make this process easier.
How to use it?
It is REALLY simple.
Just create a struct that contains an eem_t element with the eem name:
struct my_obj {
eem_t eem;
// Your data here.
};
struct my_obj mo;And then init it with:
EEM_INIT(&mo);To subscribe events:
EEM_ON(&mo, EVENT_ID, CALLBACK, ARG);
// or
EEM_ONCE(&mo, EVENT_ID, CALLBACK, ARG);To fire an event:
EEM_EMIT(&mo, EVENT_ID, DATA);The callback must look like this:
void callback(eem_ev_t *ev, void *arg)
{
// Funny event handling code
}Examples
Just see the file programs/example.c. It is self-explaining.