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eina: add a function to free Eina_Promise attached data when the promise is destroyed. 

Reviewed-by: Lauro Neto <Lauro Moura <lauromoura@expertisesolutions.com.br>>
Differential Revision: https://phab.enlightenment.org/D7491
This commit is contained in:
Cedric BAIL 2018-12-19 16:25:38 -08:00
parent 1305f28bc1
commit ce56f32270
2 changed files with 26 additions and 3 deletions
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21
src/lib/eina/eina_promise.c
View File

@ -103,6 +103,7 @@ struct _Eina_Promise {
Eina_Future *future;
Eina_Future_Scheduler *scheduler;
Eina_Promise_Cancel_Cb cancel;
Eina_Free_Cb free_cb;
const void *data;
};
@ -305,13 +306,20 @@ _eina_promise_link(Eina_Promise *p, Eina_Future *f)
DBG("Linking future %p with promise %p", f, p);
}
static void
_eina_promise_free(Eina_Promise *p)
{
if (p->free_cb) p->free_cb((void*) p->data);
eina_mempool_free(_promise_mp, p);
}
static void
_eina_promise_cancel(Eina_Promise *p)
{
DBG("Cancelling promise: %p, data: %p, future: %p", p, p->data, p->future);
_eina_promise_unlink(p);
p->cancel((void *)p->data, p);
eina_mempool_free(_promise_mp, p);
_eina_promise_free(p);
}
static void
@ -516,7 +524,7 @@ _eina_promise_deliver(Eina_Promise *p,
DBG("Promise %p has no future", p);
eina_value_flush(&value);
}
eina_mempool_free(_promise_mp, p);
_eina_promise_free(p);
}
Eina_Bool
@ -635,7 +643,7 @@ _eina_promise_clean_dispatch(Eina_Promise *p, Eina_Value v)
// This function is called on a promise created with a scheduler, not a continue one.
_eina_future_dispatch(p->scheduler, f, v);
}
eina_mempool_free(_promise_mp, p);
_eina_promise_free(p);
}
static Eina_Value
@ -1111,6 +1119,13 @@ eina_promise_data_set(Eina_Promise *p,
p->data = data;
}
EAPI void
eina_promise_data_free_cb_set(Eina_Promise *p,
Eina_Free_Cb free_cb)
{
EINA_SAFETY_ON_NULL_RETURN(p);
p->free_cb = free_cb;
}
static Eina_Value
_eina_future_cb_easy(void *data, const Eina_Value value,

8
src/lib/eina/eina_promise.h
View File

@ -628,6 +628,14 @@ EAPI void *eina_promise_data_get(const Eina_Promise *p) EINA_ARG_NONNULL(1);
*/
EAPI void eina_promise_data_set(Eina_Promise *p, void *data) EINA_ARG_NONNULL(1);
/**
* Sets the free callback used when the data attached on the promise is freed just before the destruction of the promise itself.
*
* @param[in] p The promise to set the free callback on.
* @param[in] free_cb The free callback.
*/
EAPI void eina_promise_data_free_cb_set(Eina_Promise *p, Eina_Free_Cb free_cb);
/**
* Resolves a promise.
*