Configurable Element

In MAUVE Runtime, almost all elements are configurable: the shells, the cores, the finite state machines, the components, the resources and the architectures.

Each configurable element can be in (at least) two states: not configured or configured.

• At first, the element is not configured.
• Calling the method configure() can change its state into configured if success.
• Calling the method cleanup() changes its state into not configured.

The following figure shows the "configurable state machine":

Hooks

The behavior of the configure() and cleanup() can be changed by overriding the corresponding hook: configure_hook() and cleanup_hook().

In the following example, the configure() method of shell MyShell will succeed if and only if the value of the property age is greater or equals to 25. Cleaning up the component will reset its age to 0.

struct MyShell: public Shell {
  Property<int> & age = mk_property<int>("age", 0);

  bool configure_hook() override {
    if (this.age < 25) {
      return false;
    }
    return true;
  }

  void cleanup_hook() override {
    this.age = 0;
  }
};