| 1 | #ifndef HOOK_H |
| 2 | #define HOOK_H |
| 3 | |
| 4 | #include <glib.h> |
| 5 | |
| 6 | /* A hook is a function to call with the supplied hook data, and with |
| 7 | call site specific data (e.g., hooks for events are called with a |
| 8 | pointer to the current event). */ |
| 9 | |
| 10 | typedef void (*lttv_hook)(void *hook_data, void *call_data); |
| 11 | |
| 12 | |
| 13 | /* A list of hooks allows registering hooks to be called later. */ |
| 14 | |
| 15 | typedef GArray _lttv_hooks; |
| 16 | typedef _lttv_hooks lttv_hooks; |
| 17 | |
| 18 | lttv_hooks *lttv_hooks_new(); |
| 19 | |
| 20 | void lttv_hooks_destroy(lttv_hooks *h); |
| 21 | |
| 22 | void lttv_hooks_add(lttv_hooks *h, lttv_hook f, void *hook_data); |
| 23 | |
| 24 | void lttv_hooks_call(lttv_hooks *h, void *call_data); |
| 25 | |
| 26 | |
| 27 | /* Sometimes different hooks need to be called based on the case. The |
| 28 | case is represented by an unsigned integer id and may represent different |
| 29 | event types, for instance. */ |
| 30 | |
| 31 | typedef GPtrArray _lttv_hooks_by_id; |
| 32 | typedef _lttv_hooks_by_id lttv_hooks_by_id; |
| 33 | |
| 34 | lttv_hooks_by_id *lttv_hooks_by_id_new(); |
| 35 | |
| 36 | void lttv_hooks_by_id_destroy(lttv_hooks_by_id *h); |
| 37 | |
| 38 | void lttv_hooks_by_id_add(lttv_hooks_by_id *h, lttv_hook f, void *hook_data, |
| 39 | unsigned int id); |
| 40 | |
| 41 | void lttv_hooks_by_id_call(lttv_hooks_by_id *h, void *call_data, unsigned int id); |
| 42 | |
| 43 | #endif // HOOK_H |