Actor finalize function

[farresti]

Would it be possible to add a finalize actor function symetrically to the init one ?
This function would be called at the end of the programm and could serve to close some file or stuff.

[ahonorat]

Finalize functions are not supported yet.

Workarounds:

• set atexit() of libc in one of the init function
• set preesmStopThreads to 1 in one of the actor function (must be declared in the source code : extern int preesmStopThreads;)

Possible update of the codegen:

Authorize actor functions to return an int and check the value at each execution:

if (actorCode(/* inputs and outputs */) != 0) {
    properExit();
}

The properExit function would call all finalize functions in the graph topological order of the actors having a finalize function.