forked from enlightenment/efl
912 lines
26 KiB
C
912 lines
26 KiB
C
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <Eina.h>
|
|
|
|
#include <eina_private.h>
|
|
|
|
#include <assert.h>
|
|
|
|
static int _eina_promise_log_dom = -1;
|
|
|
|
#ifdef ERR
|
|
#undef ERR
|
|
#endif
|
|
#define ERR(...) EINA_LOG_DOM_ERR(_eina_promise_log_dom, __VA_ARGS__)
|
|
|
|
typedef struct _Eina_Promise_Then_Cb _Eina_Promise_Then_Cb;
|
|
typedef struct _Eina_Promise_Progress_Cb _Eina_Promise_Progress_Cb;
|
|
typedef struct _Eina_Promise_Cancel_Cb _Eina_Promise_Cancel_Cb;
|
|
typedef struct _Eina_Promise_Owner_Progress_Notify_Data _Eina_Promise_Owner_Progress_Notify_Data;
|
|
typedef struct _Eina_Promise_Default _Eina_Promise_Default;
|
|
typedef struct _Eina_Promise_Default_Owner _Eina_Promise_Default_Owner;
|
|
typedef struct _Eina_Promise_Iterator _Eina_Promise_Iterator;
|
|
typedef struct _Eina_Promise_Success_Iterator _Eina_Promise_Success_Iterator;
|
|
|
|
struct _Eina_Promise_Then_Cb
|
|
{
|
|
EINA_INLIST;
|
|
|
|
Eina_Promise_Cb callback;
|
|
Eina_Promise_Error_Cb error_cb;
|
|
void* data;
|
|
};
|
|
|
|
struct _Eina_Promise_Progress_Cb
|
|
{
|
|
EINA_INLIST;
|
|
|
|
Eina_Promise_Progress_Cb callback;
|
|
Eina_Promise_Free_Cb free;
|
|
void* data;
|
|
};
|
|
|
|
struct _Eina_Promise_Cancel_Cb
|
|
{
|
|
EINA_INLIST;
|
|
|
|
Eina_Promise_Default_Cancel_Cb callback;
|
|
Eina_Promise_Free_Cb free;
|
|
void* data;
|
|
};
|
|
|
|
struct _Eina_Promise_Owner_Progress_Notify_Data
|
|
{
|
|
EINA_INLIST;
|
|
|
|
Eina_Promise_Progress_Notify_Cb callback;
|
|
Eina_Promise_Free_Cb free_cb;
|
|
void* data;
|
|
};
|
|
|
|
struct _Eina_Promise_Default
|
|
{
|
|
Eina_Promise vtable;
|
|
Eina_Error error;
|
|
size_t value_size;
|
|
|
|
Eina_Inlist *then_callbacks;
|
|
Eina_Inlist *progress_callbacks;
|
|
Eina_Inlist *cancel_callbacks;
|
|
Eina_Inlist *progress_notify_callbacks;
|
|
Eina_Promise_Free_Cb value_free_cb;
|
|
|
|
int ref;
|
|
|
|
Eina_Bool has_finished : 1;
|
|
Eina_Bool has_errored : 1;
|
|
Eina_Bool is_cancelled : 1;
|
|
Eina_Bool is_manual_then : 1;
|
|
Eina_Bool is_first_then : 1;
|
|
};
|
|
|
|
struct _Eina_Promise_Default_Owner
|
|
{
|
|
Eina_Promise_Owner owner_vtable;
|
|
_Eina_Promise_Default promise;
|
|
|
|
char value[];
|
|
};
|
|
|
|
#define EINA_PROMISE_GET_OWNER(p) (_Eina_Promise_Default_Owner*)((unsigned char*)p - offsetof(struct _Eina_Promise_Default_Owner, promise))
|
|
|
|
struct _Eina_Promise_Iterator
|
|
{
|
|
Eina_Iterator* success_iterator;
|
|
struct _Eina_Promise_Success_Iterator
|
|
{
|
|
Eina_Iterator success_iterator_impl;
|
|
unsigned int promise_index;
|
|
unsigned int num_promises;
|
|
unsigned int promises_finished;
|
|
Eina_Promise* promises[];
|
|
} data;
|
|
};
|
|
|
|
typedef struct _Eina_Promise_Race_Value_Type _Eina_Promise_Race_Value_Type;
|
|
struct _Eina_Promise_Race_Value_Type
|
|
{
|
|
void* value;
|
|
unsigned int promise_index;
|
|
unsigned int num_promises;
|
|
struct _Eina_Promise_Race_Information
|
|
{
|
|
Eina_Promise* promise;
|
|
_Eina_Promise_Default_Owner* self;
|
|
} promises[];
|
|
};
|
|
|
|
static void _eina_promise_free_progress_callback_node(void* node)
|
|
{
|
|
_Eina_Promise_Progress_Cb *progress_cb = node;
|
|
if(progress_cb->free)
|
|
progress_cb->free(progress_cb->data);
|
|
free(progress_cb);
|
|
}
|
|
|
|
static void _eina_promise_free_progress_notify_callback_node(void* node)
|
|
{
|
|
_Eina_Promise_Owner_Progress_Notify_Data *progress_notify_cb = node;
|
|
if(progress_notify_cb->free_cb)
|
|
progress_notify_cb->free_cb(progress_notify_cb->data);
|
|
free(progress_notify_cb);
|
|
}
|
|
|
|
static void _eina_promise_finish(_Eina_Promise_Default_Owner* promise);
|
|
static void _eina_promise_ref(_Eina_Promise_Default* promise);
|
|
static void _eina_promise_unref(_Eina_Promise_Default* promise);
|
|
|
|
static void _eina_promise_iterator_setup(_Eina_Promise_Iterator* iterator, Eina_Array* promises);
|
|
|
|
static void _eina_promise_free_callback_list(Eina_Inlist** list, void(*free_cb)(void* node))
|
|
{
|
|
struct node
|
|
{
|
|
EINA_INLIST;
|
|
} *node;
|
|
Eina_Inlist *list2;
|
|
|
|
EINA_INLIST_FOREACH_SAFE(*list, list2, node)
|
|
{
|
|
free_cb(node);
|
|
}
|
|
*list = NULL;
|
|
}
|
|
|
|
static void
|
|
_eina_promise_then_calls(_Eina_Promise_Default_Owner* promise)
|
|
{
|
|
_Eina_Promise_Then_Cb* callback;
|
|
Eina_Bool error;
|
|
|
|
_eina_promise_ref(&promise->promise);
|
|
error = promise->promise.has_errored;
|
|
|
|
EINA_INLIST_FREE(promise->promise.then_callbacks, callback)
|
|
{
|
|
promise->promise.then_callbacks = eina_inlist_remove(promise->promise.then_callbacks, EINA_INLIST_GET(callback));
|
|
if (error)
|
|
{
|
|
if (callback->error_cb)
|
|
(*callback->error_cb)(callback->data, &promise->promise.error);
|
|
}
|
|
else if (callback->callback)
|
|
{
|
|
(*callback->callback)(callback->data, &promise->value[0]);
|
|
}
|
|
free(callback);
|
|
_eina_promise_unref(&promise->promise);
|
|
}
|
|
_eina_promise_unref(&promise->promise);
|
|
}
|
|
|
|
static void
|
|
_eina_promise_cancel_calls(_Eina_Promise_Default_Owner* promise, Eina_Bool call_cancel EINA_UNUSED)
|
|
{
|
|
_Eina_Promise_Cancel_Cb* callback;
|
|
|
|
EINA_INLIST_FREE(promise->promise.cancel_callbacks, callback)
|
|
{
|
|
promise->promise.cancel_callbacks = eina_inlist_remove(promise->promise.cancel_callbacks, EINA_INLIST_GET(callback));
|
|
if (callback->callback)
|
|
{
|
|
(*callback->callback)(callback->data, (Eina_Promise_Owner*)promise);
|
|
}
|
|
free(callback);
|
|
}
|
|
|
|
if (!promise->promise.is_manual_then)
|
|
{
|
|
_eina_promise_then_calls(promise);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_del(_Eina_Promise_Default_Owner* promise)
|
|
{
|
|
if (!promise->promise.has_finished)
|
|
{
|
|
ERR("Promise is being deleted, despite not being finished yet. This will cause intermitent crashes");
|
|
}
|
|
|
|
if (promise->promise.value_free_cb)
|
|
promise->promise.value_free_cb((void*)&promise->value[0]);
|
|
|
|
_eina_promise_free_callback_list(&promise->promise.progress_callbacks,
|
|
&_eina_promise_free_progress_callback_node);
|
|
_eina_promise_free_callback_list(&promise->promise.progress_notify_callbacks,
|
|
&_eina_promise_free_progress_notify_callback_node);
|
|
free(promise);
|
|
}
|
|
|
|
static void *
|
|
_eina_promise_owner_buffer_get(_Eina_Promise_Default_Owner* promise)
|
|
{
|
|
return &promise->value[0];
|
|
}
|
|
|
|
static void *
|
|
_eina_promise_value_get(_Eina_Promise_Default const* p)
|
|
{
|
|
_Eina_Promise_Default_Owner const* promise = EINA_PROMISE_GET_OWNER(p);
|
|
if (promise->promise.has_finished && !promise->promise.has_errored)
|
|
{
|
|
return (void*)&promise->value[0];
|
|
}
|
|
else
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_owner_value_set(_Eina_Promise_Default_Owner* promise, void* data, Eina_Promise_Free_Cb free)
|
|
{
|
|
if (data && promise->promise.value_size)
|
|
{
|
|
memcpy(&promise->value[0], data, promise->promise.value_size);
|
|
}
|
|
|
|
promise->promise.value_free_cb = free;
|
|
|
|
_eina_promise_finish(promise);
|
|
}
|
|
|
|
static void
|
|
_eina_promise_then(_Eina_Promise_Default* p, Eina_Promise_Cb callback,
|
|
Eina_Promise_Error_Cb error_cb, void* data)
|
|
{
|
|
_Eina_Promise_Default_Owner* promise;
|
|
_Eina_Promise_Then_Cb* cb;
|
|
_Eina_Promise_Owner_Progress_Notify_Data* notify_data;
|
|
|
|
promise = EINA_PROMISE_GET_OWNER(p);
|
|
|
|
cb = malloc(sizeof(struct _Eina_Promise_Then_Cb));
|
|
|
|
cb->callback = callback;
|
|
cb->error_cb = error_cb;
|
|
cb->data = data;
|
|
promise->promise.then_callbacks = eina_inlist_append(promise->promise.then_callbacks, EINA_INLIST_GET(cb));
|
|
|
|
EINA_INLIST_FOREACH(promise->promise.progress_notify_callbacks, notify_data)
|
|
{
|
|
(*notify_data->callback)(notify_data->data, &promise->owner_vtable);
|
|
}
|
|
_eina_promise_free_callback_list(&promise->promise.progress_notify_callbacks, &free);
|
|
|
|
if (!promise->promise.is_first_then)
|
|
{
|
|
_eina_promise_ref(p);
|
|
}
|
|
else
|
|
promise->promise.is_first_then = EINA_FALSE;
|
|
if (promise->promise.has_finished)
|
|
{
|
|
_eina_promise_then_calls(promise);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_owner_error_set(_Eina_Promise_Default_Owner* promise, Eina_Error error)
|
|
{
|
|
promise->promise.error = error;
|
|
promise->promise.has_errored = EINA_TRUE;
|
|
|
|
_eina_promise_finish(promise);
|
|
}
|
|
|
|
static void
|
|
_eina_promise_finish(_Eina_Promise_Default_Owner* promise)
|
|
{
|
|
promise->promise.has_finished = EINA_TRUE;
|
|
if (!promise->promise.is_manual_then)
|
|
{
|
|
_eina_promise_then_calls(promise);
|
|
}
|
|
if(promise->promise.ref == 0)
|
|
{
|
|
_eina_promise_del(promise);
|
|
}
|
|
}
|
|
|
|
static Eina_Error
|
|
_eina_promise_error_get(_Eina_Promise_Default const* promise)
|
|
{
|
|
if (promise->has_errored)
|
|
{
|
|
return promise->error;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static Eina_Bool
|
|
_eina_promise_pending_is(_Eina_Promise_Default const* promise)
|
|
{
|
|
return !promise->has_finished;
|
|
}
|
|
|
|
static Eina_Bool
|
|
_eina_promise_owner_pending_is(_Eina_Promise_Default_Owner const* promise)
|
|
{
|
|
return !promise->promise.has_finished;
|
|
}
|
|
|
|
static Eina_Bool
|
|
_eina_promise_owner_cancelled_is(_Eina_Promise_Default_Owner const* promise)
|
|
{
|
|
return promise->promise.is_cancelled;
|
|
}
|
|
|
|
static void
|
|
_eina_promise_progress_cb_add(_Eina_Promise_Default* promise, Eina_Promise_Progress_Cb callback, void* data,
|
|
Eina_Promise_Free_Cb free_cb)
|
|
{
|
|
_Eina_Promise_Progress_Cb* cb;
|
|
_Eina_Promise_Owner_Progress_Notify_Data* notify_data;
|
|
_Eina_Promise_Default_Owner* owner = EINA_PROMISE_GET_OWNER(promise);
|
|
|
|
cb = malloc(sizeof(struct _Eina_Promise_Progress_Cb));
|
|
cb->callback = callback;
|
|
cb->data = data;
|
|
cb->free = free_cb;
|
|
promise->progress_callbacks = eina_inlist_append(promise->progress_callbacks, EINA_INLIST_GET(cb));
|
|
|
|
EINA_INLIST_FOREACH(owner->promise.progress_notify_callbacks, notify_data)
|
|
{
|
|
(*notify_data->callback)(notify_data->data, &owner->owner_vtable);
|
|
}
|
|
_eina_promise_free_callback_list(&owner->promise.progress_notify_callbacks,
|
|
&_eina_promise_free_progress_notify_callback_node);
|
|
}
|
|
|
|
static void
|
|
_eina_promise_cancel(_Eina_Promise_Default* promise)
|
|
{
|
|
_Eina_Promise_Default_Owner* owner = EINA_PROMISE_GET_OWNER(promise);
|
|
|
|
if (!owner->promise.is_cancelled)
|
|
{
|
|
owner->promise.is_cancelled = EINA_TRUE;
|
|
owner->promise.has_finished = EINA_TRUE;
|
|
owner->promise.has_errored = EINA_TRUE;
|
|
_eina_promise_cancel_calls(owner, EINA_TRUE);
|
|
}
|
|
}
|
|
|
|
static size_t
|
|
_eina_promise_value_size_get(_Eina_Promise_Default_Owner const* promise)
|
|
{
|
|
return promise->promise.value_size;
|
|
}
|
|
|
|
static size_t
|
|
_eina_promise_owner_value_size_get(_Eina_Promise_Default_Owner const* promise)
|
|
{
|
|
return promise->promise.value_size;
|
|
}
|
|
|
|
static void
|
|
_eina_promise_ref(_Eina_Promise_Default* p)
|
|
{
|
|
++p->ref;
|
|
}
|
|
|
|
static void
|
|
_eina_promise_unref(_Eina_Promise_Default* p)
|
|
{
|
|
if (p->ref == 1 && p->has_finished)
|
|
{
|
|
_eina_promise_del(EINA_PROMISE_GET_OWNER(p));
|
|
}
|
|
else
|
|
{
|
|
--p->ref;
|
|
}
|
|
}
|
|
|
|
static Eina_Promise *
|
|
_eina_promise_owner_promise_get(_Eina_Promise_Default_Owner* p)
|
|
{
|
|
return &p->promise.vtable;
|
|
}
|
|
|
|
void
|
|
eina_promise_owner_default_cancel_cb_add(Eina_Promise_Owner* p,
|
|
Eina_Promise_Default_Cancel_Cb callback, void* data,
|
|
Eina_Promise_Free_Cb free_cb)
|
|
{
|
|
_Eina_Promise_Default_Owner *promise;
|
|
_Eina_Promise_Cancel_Cb *cb;
|
|
|
|
promise = (_Eina_Promise_Default_Owner *)p;
|
|
|
|
cb = malloc(sizeof(struct _Eina_Promise_Cancel_Cb));
|
|
|
|
cb->callback = callback;
|
|
cb->free = free_cb;
|
|
cb->data = data;
|
|
promise->promise.cancel_callbacks = eina_inlist_append(promise->promise.cancel_callbacks, EINA_INLIST_GET(cb));
|
|
|
|
if (promise->promise.is_cancelled)
|
|
{
|
|
_eina_promise_cancel_calls(promise, EINA_TRUE);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_owner_progress(_Eina_Promise_Default_Owner* promise, void* data)
|
|
{
|
|
_Eina_Promise_Progress_Cb* callback;
|
|
Eina_Inlist* list2;
|
|
|
|
EINA_INLIST_FOREACH_SAFE(promise->promise.progress_callbacks, list2, callback)
|
|
{
|
|
if(callback->callback)
|
|
(*callback->callback)(callback->data, data);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_owner_progress_notify(_Eina_Promise_Default_Owner* promise, Eina_Promise_Progress_Notify_Cb notify,
|
|
void* data, Eina_Promise_Free_Cb free_cb)
|
|
{
|
|
_Eina_Promise_Owner_Progress_Notify_Data* cb
|
|
= malloc(sizeof(struct _Eina_Promise_Owner_Progress_Notify_Data));
|
|
|
|
cb->callback = notify;
|
|
cb->free_cb = free_cb;
|
|
cb->data = data;
|
|
promise->promise.progress_notify_callbacks =
|
|
eina_inlist_append(promise->promise.progress_notify_callbacks, EINA_INLIST_GET(cb));
|
|
}
|
|
|
|
Eina_Promise_Owner *
|
|
eina_promise_default_add(int value_size)
|
|
{
|
|
_Eina_Promise_Default_Owner* p;
|
|
|
|
p = malloc(sizeof(_Eina_Promise_Default_Owner) + value_size);
|
|
p->promise.vtable.version = EINA_PROMISE_VERSION;
|
|
p->promise.vtable.then = EINA_FUNC_PROMISE_THEN(_eina_promise_then);
|
|
p->promise.vtable.value_get = EINA_FUNC_PROMISE_VALUE_GET(_eina_promise_value_get);
|
|
p->promise.vtable.error_get = EINA_FUNC_PROMISE_ERROR_GET(_eina_promise_error_get);
|
|
p->promise.vtable.pending_is = EINA_FUNC_PROMISE_PENDING_IS(_eina_promise_pending_is);
|
|
p->promise.vtable.progress_cb_add = EINA_FUNC_PROMISE_PROGRESS_CB_ADD(_eina_promise_progress_cb_add);
|
|
p->promise.vtable.cancel = EINA_FUNC_PROMISE_CANCEL(_eina_promise_cancel);
|
|
p->promise.vtable.ref = EINA_FUNC_PROMISE_REF(_eina_promise_ref);
|
|
p->promise.vtable.unref = EINA_FUNC_PROMISE_UNREF(_eina_promise_unref);
|
|
p->promise.vtable.value_size_get = EINA_FUNC_PROMISE_VALUE_SIZE_GET(_eina_promise_value_size_get);
|
|
p->promise.has_finished = p->promise.has_errored =
|
|
p->promise.is_cancelled = p->promise.is_manual_then = EINA_FALSE;
|
|
p->promise.is_first_then = EINA_TRUE;
|
|
p->promise.ref = 1;
|
|
memset(&p->promise.then_callbacks, 0, sizeof(p->promise.then_callbacks));
|
|
memset(&p->promise.progress_callbacks, 0, sizeof(p->promise.progress_callbacks));
|
|
memset(&p->promise.progress_notify_callbacks, 0, sizeof(p->promise.progress_notify_callbacks));
|
|
memset(&p->promise.cancel_callbacks, 0, sizeof(p->promise.cancel_callbacks));
|
|
p->promise.value_size = value_size;
|
|
p->promise.value_free_cb = NULL;
|
|
p->promise.error = 0;
|
|
|
|
p->owner_vtable.version = EINA_PROMISE_VERSION;
|
|
p->owner_vtable.value_set = EINA_FUNC_PROMISE_OWNER_VALUE_SET(_eina_promise_owner_value_set);
|
|
p->owner_vtable.error_set = EINA_FUNC_PROMISE_OWNER_ERROR_SET(_eina_promise_owner_error_set);
|
|
p->owner_vtable.buffer_get = EINA_FUNC_PROMISE_OWNER_BUFFER_GET(_eina_promise_owner_buffer_get);
|
|
p->owner_vtable.value_size_get = EINA_FUNC_PROMISE_OWNER_VALUE_SIZE_GET(_eina_promise_owner_value_size_get);
|
|
p->owner_vtable.promise_get = EINA_FUNC_PROMISE_OWNER_PROMISE_GET(_eina_promise_owner_promise_get);
|
|
p->owner_vtable.pending_is = EINA_FUNC_PROMISE_OWNER_PENDING_IS(_eina_promise_owner_pending_is);
|
|
p->owner_vtable.cancelled_is = EINA_FUNC_PROMISE_OWNER_CANCELLED_IS(_eina_promise_owner_cancelled_is);
|
|
p->owner_vtable.progress = EINA_FUNC_PROMISE_OWNER_PROGRESS(_eina_promise_owner_progress);
|
|
p->owner_vtable.progress_notify = EINA_FUNC_PROMISE_OWNER_PROGRESS_NOTIFY(_eina_promise_owner_progress_notify);
|
|
|
|
return &p->owner_vtable;
|
|
}
|
|
|
|
void
|
|
eina_promise_owner_default_manual_then_set(Eina_Promise_Owner* owner, Eina_Bool is_manual)
|
|
{
|
|
_Eina_Promise_Default_Owner* p = (_Eina_Promise_Default_Owner*)owner;
|
|
|
|
p->promise.is_manual_then = is_manual;
|
|
}
|
|
|
|
void
|
|
eina_promise_owner_default_call_then(Eina_Promise_Owner* promise)
|
|
{
|
|
_Eina_Promise_Default_Owner* owner = (_Eina_Promise_Default_Owner*)promise;
|
|
|
|
_eina_promise_then_calls(owner);
|
|
}
|
|
|
|
static void
|
|
_eina_promise_all_compose_then_cb(_Eina_Promise_Default_Owner* promise, void* value EINA_UNUSED)
|
|
{
|
|
_Eina_Promise_Iterator* iterator;
|
|
|
|
if (!promise->promise.has_finished)
|
|
{
|
|
iterator = (_Eina_Promise_Iterator*)promise->value;
|
|
if (++iterator->data.promises_finished == iterator->data.num_promises)
|
|
{
|
|
_eina_promise_finish(promise);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_all_compose_error_then_cb(_Eina_Promise_Default_Owner* promise, Eina_Error const* error)
|
|
{
|
|
if (!promise->promise.has_finished)
|
|
{
|
|
promise->promise.has_finished = promise->promise.has_errored = EINA_TRUE;
|
|
promise->promise.error = *error;
|
|
_eina_promise_finish(promise);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_all_free(_Eina_Promise_Iterator* value)
|
|
{
|
|
unsigned i = 0;
|
|
|
|
eina_iterator_free(value->success_iterator);
|
|
|
|
for (;i != value->data.num_promises; ++i)
|
|
{
|
|
eina_promise_unref(value->data.promises[i]);
|
|
}
|
|
}
|
|
|
|
Eina_Promise *
|
|
eina_promise_all(Eina_Iterator* it)
|
|
{
|
|
_Eina_Promise_Default_Owner *promise;
|
|
Eina_Promise* current;
|
|
Eina_Array* promises;
|
|
Eina_Promise **cur_promise, **last;
|
|
_Eina_Promise_Iterator* internal_it;
|
|
|
|
promises = eina_array_new(20);
|
|
|
|
EINA_ITERATOR_FOREACH(it, current)
|
|
{
|
|
eina_array_push(promises, current);
|
|
}
|
|
|
|
eina_iterator_free(it);
|
|
|
|
promise = (_Eina_Promise_Default_Owner*)
|
|
eina_promise_default_add(sizeof(_Eina_Promise_Iterator) +
|
|
sizeof(_Eina_Promise_Default_Owner*)*eina_array_count_get(promises));
|
|
internal_it = (_Eina_Promise_Iterator*)&promise->value[0];
|
|
_eina_promise_iterator_setup(internal_it, promises);
|
|
eina_array_free(promises);
|
|
|
|
promise->promise.value_free_cb = (Eina_Promise_Free_Cb)&_eina_promise_all_free;
|
|
|
|
cur_promise = internal_it->data.promises;
|
|
last = internal_it->data.promises + internal_it->data.num_promises;
|
|
for (;cur_promise != last; ++cur_promise)
|
|
{
|
|
eina_promise_then(*cur_promise, (Eina_Promise_Cb)&_eina_promise_all_compose_then_cb,
|
|
(Eina_Promise_Error_Cb)&_eina_promise_all_compose_error_then_cb, promise);
|
|
eina_promise_ref(*cur_promise); // We need to keep the value alive until this promise is freed
|
|
}
|
|
|
|
return &promise->promise.vtable;
|
|
}
|
|
|
|
static Eina_Bool
|
|
_eina_promise_iterator_next(_Eina_Promise_Success_Iterator *it, void **data)
|
|
{
|
|
if (it->promise_index == it->num_promises)
|
|
return EINA_FALSE;
|
|
|
|
if (eina_promise_error_get(it->promises[it->promise_index]))
|
|
{
|
|
return EINA_FALSE;
|
|
}
|
|
else
|
|
{
|
|
*data = eina_promise_value_get(it->promises[it->promise_index++]);
|
|
return EINA_TRUE;
|
|
}
|
|
}
|
|
|
|
static void **
|
|
_eina_promise_iterator_get_container(_Eina_Promise_Success_Iterator *it)
|
|
{
|
|
return (void**)it->promises;
|
|
}
|
|
|
|
static void
|
|
_eina_promise_iterator_free(_Eina_Promise_Success_Iterator *it EINA_UNUSED)
|
|
{
|
|
}
|
|
|
|
static void
|
|
_eina_promise_iterator_setup(_Eina_Promise_Iterator* it, Eina_Array* promises_array)
|
|
{
|
|
Eina_Promise** promises;
|
|
|
|
it->success_iterator = &it->data.success_iterator_impl;
|
|
it->data.num_promises = eina_array_count_get(promises_array);
|
|
it->data.promise_index = 0;
|
|
it->data.promises_finished = 0;
|
|
promises = (Eina_Promise**)promises_array->data;
|
|
|
|
memcpy(&it->data.promises[0], promises, it->data.num_promises*sizeof(Eina_Promise*));
|
|
|
|
EINA_MAGIC_SET(&it->data.success_iterator_impl, EINA_MAGIC_ITERATOR);
|
|
|
|
it->data.success_iterator_impl.version = EINA_ITERATOR_VERSION;
|
|
it->data.success_iterator_impl.next = FUNC_ITERATOR_NEXT(_eina_promise_iterator_next);
|
|
it->data.success_iterator_impl.get_container = FUNC_ITERATOR_GET_CONTAINER(
|
|
_eina_promise_iterator_get_container);
|
|
it->data.success_iterator_impl.free = FUNC_ITERATOR_FREE(_eina_promise_iterator_free);
|
|
}
|
|
|
|
static void
|
|
_eina_promise_progress_notify_fulfilled(void* data, Eina_Promise_Owner* p EINA_UNUSED)
|
|
{
|
|
Eina_Promise_Owner* owner = data;
|
|
eina_promise_owner_value_set(owner, NULL, NULL);
|
|
}
|
|
|
|
EAPI Eina_Error EINA_ERROR_PROMISE_NO_NOTIFY;
|
|
EAPI Eina_Error EINA_ERROR_PROMISE_CANCEL;
|
|
|
|
static void
|
|
_eina_promise_progress_notify_failed(void* data)
|
|
{
|
|
Eina_Promise_Owner* owner = data;
|
|
if(eina_promise_owner_pending_is(owner))
|
|
eina_promise_owner_error_set(owner, EINA_ERROR_PROMISE_NO_NOTIFY);
|
|
}
|
|
|
|
EAPI Eina_Promise*
|
|
eina_promise_progress_notification(Eina_Promise_Owner* promise)
|
|
{
|
|
Eina_Promise_Owner* owner;
|
|
|
|
owner = eina_promise_default_add(0);
|
|
|
|
eina_promise_owner_progress_notify(promise, &_eina_promise_progress_notify_fulfilled, owner,
|
|
&_eina_promise_progress_notify_failed);
|
|
|
|
return eina_promise_owner_promise_get(owner);
|
|
}
|
|
|
|
// Race implementation
|
|
static void
|
|
_eina_promise_race_free(_Eina_Promise_Race_Value_Type* value)
|
|
{
|
|
unsigned i = 0;
|
|
for (;i != value->num_promises; ++i)
|
|
{
|
|
eina_promise_unref(value->promises[i].promise);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_race_compose_then_cb(struct _Eina_Promise_Race_Information* info, void* value EINA_UNUSED)
|
|
{
|
|
_Eina_Promise_Default_Owner* race_promise;
|
|
_Eina_Promise_Race_Value_Type *race_value;
|
|
|
|
race_promise = info->self;
|
|
race_value = (_Eina_Promise_Race_Value_Type*)race_promise->value;
|
|
|
|
if (!race_promise->promise.has_finished)
|
|
{
|
|
race_value->value = value;
|
|
race_value->promise_index = info - &race_value->promises[0];
|
|
_eina_promise_finish(race_promise);
|
|
}
|
|
}
|
|
|
|
static void
|
|
_eina_promise_race_compose_error_then_cb(struct _Eina_Promise_Race_Information* info, Eina_Error const* error)
|
|
{
|
|
_Eina_Promise_Default_Owner* race_promise;
|
|
_Eina_Promise_Race_Value_Type *race_value;
|
|
|
|
race_promise = info->self;
|
|
race_value = (_Eina_Promise_Race_Value_Type*)race_promise->value;
|
|
|
|
if (!race_promise->promise.has_finished)
|
|
{
|
|
race_value->promise_index = info - &race_value->promises[0];
|
|
eina_promise_owner_error_set(&race_promise->owner_vtable, *error);
|
|
}
|
|
}
|
|
|
|
Eina_Promise *
|
|
eina_promise_race(Eina_Iterator* it)
|
|
{
|
|
_Eina_Promise_Default_Owner *promise;
|
|
Eina_Promise* current;
|
|
Eina_Array* promises;
|
|
struct _Eina_Promise_Race_Information *cur_promise, *last;
|
|
_Eina_Promise_Race_Value_Type *value;
|
|
int num_promises;
|
|
|
|
promises = eina_array_new(20);
|
|
|
|
EINA_ITERATOR_FOREACH(it, current)
|
|
{
|
|
eina_array_push(promises, current);
|
|
}
|
|
|
|
eina_iterator_free(it);
|
|
|
|
num_promises = eina_array_count_get(promises);
|
|
promise = (_Eina_Promise_Default_Owner*)
|
|
eina_promise_default_add(sizeof(_Eina_Promise_Race_Value_Type) +
|
|
sizeof(struct _Eina_Promise_Race_Information*)*num_promises);
|
|
value = eina_promise_owner_buffer_get((Eina_Promise_Owner*)promise);
|
|
value->value = NULL;
|
|
value->promise_index = -1;
|
|
value->num_promises = num_promises;
|
|
|
|
promise->promise.value_free_cb = (Eina_Promise_Free_Cb)&_eina_promise_race_free;
|
|
|
|
cur_promise = value->promises;
|
|
last = value->promises + value->num_promises;
|
|
for (int i = 0;cur_promise != last; ++cur_promise, ++i)
|
|
{
|
|
cur_promise->promise = eina_array_data_get(promises, i);
|
|
cur_promise->self = promise;
|
|
eina_promise_then(cur_promise->promise, (Eina_Promise_Cb)&_eina_promise_race_compose_then_cb,
|
|
(Eina_Promise_Error_Cb)&_eina_promise_race_compose_error_then_cb, cur_promise);
|
|
eina_promise_ref(cur_promise->promise); // We need to keep the value alive until this promise is freed
|
|
}
|
|
|
|
eina_array_free(promises);
|
|
|
|
return &promise->promise.vtable;
|
|
}
|
|
|
|
// API functions
|
|
EAPI void
|
|
eina_promise_then(Eina_Promise* promise, Eina_Promise_Cb callback,
|
|
Eina_Promise_Error_Cb error_cb, void* data)
|
|
{
|
|
promise->then(promise, callback, error_cb, data);
|
|
}
|
|
|
|
EAPI void
|
|
eina_promise_owner_value_set(Eina_Promise_Owner* promise, void* value, Eina_Promise_Free_Cb free)
|
|
{
|
|
promise->value_set(promise, value, free);
|
|
}
|
|
|
|
EAPI void
|
|
eina_promise_owner_error_set(Eina_Promise_Owner* promise, Eina_Error error)
|
|
{
|
|
promise->error_set(promise, error);
|
|
}
|
|
|
|
EAPI void *
|
|
eina_promise_value_get(Eina_Promise const* promise)
|
|
{
|
|
return promise->value_get(promise);
|
|
}
|
|
|
|
EAPI Eina_Error
|
|
eina_promise_error_get(Eina_Promise const* promise)
|
|
{
|
|
return promise->error_get(promise);
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eina_promise_pending_is(Eina_Promise const* promise)
|
|
{
|
|
return promise->pending_is(promise);
|
|
}
|
|
|
|
EAPI void
|
|
eina_promise_progress_cb_add(Eina_Promise* promise, Eina_Promise_Progress_Cb callback, void* data,
|
|
Eina_Promise_Free_Cb free_cb)
|
|
{
|
|
promise->progress_cb_add(promise, callback, data, free_cb);
|
|
}
|
|
|
|
EAPI void
|
|
eina_promise_cancel(Eina_Promise* promise)
|
|
{
|
|
promise->cancel(promise);
|
|
}
|
|
|
|
EAPI void
|
|
eina_promise_ref(Eina_Promise* promise)
|
|
{
|
|
promise->ref(promise);
|
|
}
|
|
|
|
EAPI void
|
|
eina_promise_unref(Eina_Promise* promise)
|
|
{
|
|
promise->unref(promise);
|
|
}
|
|
|
|
EAPI void *
|
|
eina_promise_owner_buffer_get(Eina_Promise_Owner* promise)
|
|
{
|
|
return promise->buffer_get(promise);
|
|
}
|
|
|
|
EAPI void *
|
|
eina_promise_buffer_get(Eina_Promise* promise)
|
|
{
|
|
return promise->buffer_get(promise);
|
|
}
|
|
|
|
EAPI size_t
|
|
eina_promise_value_size_get(Eina_Promise const* promise)
|
|
{
|
|
return promise->value_size_get(promise);
|
|
}
|
|
|
|
EAPI Eina_Promise *
|
|
eina_promise_owner_promise_get(Eina_Promise_Owner* promise)
|
|
{
|
|
return promise->promise_get(promise);
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eina_promise_owner_pending_is(Eina_Promise_Owner const* promise)
|
|
{
|
|
return promise->pending_is(promise);
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eina_promise_owner_cancelled_is(Eina_Promise_Owner const* promise)
|
|
{
|
|
return promise->cancelled_is(promise);
|
|
}
|
|
|
|
EAPI void
|
|
eina_promise_owner_progress(Eina_Promise_Owner const* promise, void* progress)
|
|
{
|
|
promise->progress(promise, progress);
|
|
}
|
|
|
|
EAPI void
|
|
eina_promise_owner_progress_notify(Eina_Promise_Owner* promise, Eina_Promise_Progress_Notify_Cb progress_cb,
|
|
void* data, Eina_Promise_Free_Cb free_cb)
|
|
{
|
|
promise->progress_notify(promise, progress_cb, data, free_cb);
|
|
}
|
|
|
|
static const char EINA_ERROR_PROMISE_NO_NOTIFY_STR[] = "Out of memory";
|
|
static const char EINA_ERROR_PROMISE_CANCEL_STR[] = "Promise cancelled";
|
|
|
|
Eina_Bool eina_promise_init()
|
|
{
|
|
EINA_ERROR_PROMISE_NO_NOTIFY = eina_error_msg_static_register(EINA_ERROR_PROMISE_NO_NOTIFY_STR);
|
|
EINA_ERROR_PROMISE_CANCEL = eina_error_msg_static_register(EINA_ERROR_PROMISE_CANCEL_STR);
|
|
|
|
_eina_promise_log_dom = eina_log_domain_register("eina_promise",
|
|
EINA_LOG_COLOR_DEFAULT);
|
|
if (_eina_promise_log_dom < 0)
|
|
{
|
|
EINA_LOG_ERR("Could not register log domain: eina_promise");
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
Eina_Bool eina_promise_shutdown()
|
|
{
|
|
eina_log_domain_unregister(_eina_promise_log_dom);
|
|
_eina_promise_log_dom = -1;
|
|
return EINA_TRUE;
|
|
}
|