The idler functionality in Ecore allows for callbacks to be called when the program isn't handling events, timers or fd handlers. More...
Typedefs | |
typedef struct _Ecore_Factorized_Idle | Ecore_Idler |
A handle for idlers. | |
typedef struct _Ecore_Factorized_Idle | Ecore_Idle_Enterer |
A handle for idle enterers. | |
typedef struct _Ecore_Factorized_Idle | Ecore_Idle_Exiter |
A handle for idle exiters. | |
Ecore_Idler * | ecore_idler_add (Ecore_Task_Cb func, const void *data) |
Add an idler handler. More... | |
void * | ecore_idler_del (Ecore_Idler *idler) |
Delete an idler callback from the list to be executed. More... | |
Ecore_Idle_Enterer * | ecore_idle_enterer_add (Ecore_Task_Cb func, const void *data) |
Add an idle enterer handler. More... | |
Ecore_Idle_Enterer * | ecore_idle_enterer_before_add (Ecore_Task_Cb func, const void *data) |
Add an idle enterer handler at the start of the list so it gets called earlier than others. More... | |
void * | ecore_idle_enterer_del (Ecore_Idle_Enterer *idle_enterer) |
Delete an idle enterer callback. More... | |
Ecore_Idle_Exiter * | ecore_idle_exiter_add (Ecore_Task_Cb func, const void *data) |
Add an idle exiter handler. More... | |
void * | ecore_idle_exiter_del (Ecore_Idle_Exiter *idle_exiter) |
Delete an idle exiter handler from the list to be run on exiting idle state. More... | |
The idler functionality in Ecore allows for callbacks to be called when the program isn't handling events, timers or fd handlers.
There are three types of idlers: Enterers, Idlers(proper) and Exiters. They are called, respectively, when the program is about to enter an idle state, when the program is in an idle state and when the program has just left an idle state and will begin processing events, timers or fd handlers.
Enterer callbacks are good for updating your program's state, if it has a state engine. Once all of the enterer handlers are called, the program will enter a "sleeping" state.
Idler callbacks are called when the main loop has called all enterer handlers. They are useful for interfaces that require polling and timers would be too slow to use.
Exiter callbacks are called when the main loop wakes up from an idle state.
If no idler callbacks are specified, then the process literally goes to sleep. Otherwise, the idler callbacks are called continuously while the loop is "idle", using as much CPU as is available to the process.
Example with functions that deal with idle state:
Ecore_Idler* ecore_idler_add | ( | Ecore_Task_Cb | func, |
const void * | data | ||
) |
Add an idler handler.
func | The function to call when idling. |
data | The data to be passed to this func call. |
NULL
otherwise.Add an idler handle to the event loop, returning a handle on success and NULL
otherwise. The function func
will be called repeatedly while no other events are ready to be processed, as long as it returns 1
(or ECORE_CALLBACK_RENEW). A return of 0
(or ECORE_CALLBACK_CANCEL) deletes the idler.
Idlers are useful for progressively prossessing data without blocking.
void* ecore_idler_del | ( | Ecore_Idler * | idler | ) |
Delete an idler callback from the list to be executed.
idler | The handle of the idler callback to delete |
NULL
otherwise. References eo_data_scope_get().
Referenced by eldbus_service_object_manager_attach().
Ecore_Idle_Enterer* ecore_idle_enterer_add | ( | Ecore_Task_Cb | func, |
const void * | data | ||
) |
Add an idle enterer handler.
func | The function to call when entering an idle state. |
data | The data to be passed to the func call |
Referenced by ecore_evas_init().
Ecore_Idle_Enterer* ecore_idle_enterer_before_add | ( | Ecore_Task_Cb | func, |
const void * | data | ||
) |
Add an idle enterer handler at the start of the list so it gets called earlier than others.
func | The function to call when entering an idle state. |
data | The data to be passed to the func call |
References EO_CALLBACK_PRIORITY_BEFORE.
void* ecore_idle_enterer_del | ( | Ecore_Idle_Enterer * | idle_enterer | ) |
Delete an idle enterer callback.
idle_enterer | The idle enterer to delete |
Referenced by ecore_wl_server_mode_set(), and ecore_x_double_click_time_get().
Ecore_Idle_Exiter* ecore_idle_exiter_add | ( | Ecore_Task_Cb | func, |
const void * | data | ||
) |
Add an idle exiter handler.
func | The function to call when exiting an idle state. |
data | The data to be passed to the func call |
void* ecore_idle_exiter_del | ( | Ecore_Idle_Exiter * | idle_exiter | ) |
Delete an idle exiter handler from the list to be run on exiting idle state.
idle_exiter | The idle exiter to delete |