#201 Signal/Trigger management in QM

[Anonymous]

Came here with a feature request to create/manage signals in QM, just like attributes.
Found a similar request here

But there's no update since 2014?

We can create an attribute with enum_t type, however, we can't set the enum_t elements. (We can with some tweaks)

---

Tweaks: (there's attached files with an example based on Blinky)
- Set a package to manage Signals
- Set two packages for published signals and posted signals
- create signals by adding attributes to said packages of visibility "type" and initializer ","(comma, to avoid the ";" at the end of the declaration)
- call the declare command inside an enum_t

---

Suggestion:
- by class: Use a Class template with enum_t "superclass". We could add attributes to the class and it would be declared as enum_t instead of struct
- by package: adding stereotype "Signals" to packages and enum_t element to attributes. Again, a package could then be declared as enum_t, however, it could only have enum_t element type of attributes

---

Generated file:

#ifndef SHARED_H
#define SHARED_H

enum_t Signals {
    MOD_INIT_SIG = Q_USER_SIG,
/*$declare${MODULE::Signals::Publish_Signals} vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/

/*${MODULE::Signals::Publish_Signals::LED_ON_SIG} ..........................*/
 LED_ON_SIG ,

/*${MODULE::Signals::Publish_Signals::LED_OFF_SIG} .........................*/
 LED_OFF_SIG ,
/*$enddecl${MODULE::Signals::Publish_Signals} ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
    MAX_PUB_SIG,/* the last published signal */
/*$declare${MODULE::Signals::Post_Signals} vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/
/*$enddecl${MODULE::Signals::Post_Signals} ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
    MAX_SIG /* the last signal (keep always last) */
}

/*$declare${MODULE::Events} vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/

/*${MODULE::Events::Blink_Status_Evt} ......................................*/
typedef struct {
/* protected: */
    QEvt super;

/* public: */
    uint8_t status;
} Blink_Status_Evt;
/*$enddecl${MODULE::Events} ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/

#endif /* SHARED_H */

[Quantum Leaps]

Enumerations with initialization can be modeled in QM by using visibility "type".
For example, you can open the qpc.qm model and paste-link to the following element: ${QS::QSpyPre}