Generic In-memory buffer of data to be used as I/O.
This class offers both input and output, which can be used at the same time since Efl.Io.Reader.read and Efl.Io.Writer.write use different offsets/position internally.
One can get temporary direct access to internal buffer with Efl.Io.Buffer.slice or steal the buffer with Efl.Io.Buffer.binbuf_steal.
A fixed sized buffer can be implemented by setting Efl.Io.Buffer.limit followed by Efl.Io.Buffer.preallocate
⇒ Efl.Object (class)
Adopt a read-only slice as buffer's backing store.
void efl_io_buffer_adopt_readonly(Eo *obj, const Eina_Slice slice);
Adopt a read-write slice as buffer's backing store.
void efl_io_buffer_adopt_readwrite(Eo *obj, Eina_Rw_Slice slice);
Steals the internal buffer memory and returns it as a binbuf.
Eina_Binbuf *efl_io_buffer_binbuf_steal(Eo *obj);
can_read (get, set) protected set [Overridden from Efl.Io.Reader]
Iftruewill notify Efl.Io.Reader.read can be called without blocking or failing.
Eina_Bool efl_io_reader_can_read_get(const Eo *obj); void efl_io_reader_can_read_set(Eo *obj, Eina_Bool can_read);
can_write (get, set) protected set [Overridden from Efl.Io.Writer]
Iftruewill notify Efl.Io.Writer.write can be called without blocking or failing.
Eina_Bool efl_io_writer_can_write_get(const Eo *obj); void efl_io_writer_can_write_set(Eo *obj, Eina_Bool can_write);
close [Overridden from Efl.Io.Closer]
Closes the Input/Output object.
Eina_Error efl_io_closer_close(Eo *obj);
close_on_exec (get, set) [Overridden from Efl.Io.Closer]
If true will automatically close resources on exec() calls.
Eina_Bool efl_io_closer_close_on_exec_get(const Eo *obj); Eina_Bool efl_io_closer_close_on_exec_set(Eo *obj, Eina_Bool close_on_exec);
close_on_invalidate (get, set) [Overridden from Efl.Io.Closer]
If true will automatically close() on object invalidate.
Eina_Bool efl_io_closer_close_on_invalidate_get(const Eo *obj); void efl_io_closer_close_on_invalidate_set(Eo *obj, Eina_Bool close_on_invalidate);
closed (get) [Overridden from Efl.Io.Closer]
Eina_Bool efl_io_closer_closed_get(const Eo *obj);
destructor [Overridden from Efl.Object]
Implement this method to provide deinitialization code for your object if you need it.
void efl_destructor(Eo *obj);
eos (get, set) protected set [Overridden from Efl.Io.Reader]
Iftruewill notify end of stream.
Eina_Bool efl_io_reader_eos_get(const Eo *obj); void efl_io_reader_eos_set(Eo *obj, Eina_Bool is_eos);
finalize [Overridden from Efl.Object]
Implement this method to finish the initialization of your object after all (if any) user-provided configuration methods have been executed.
Efl_Object *efl_finalize(Eo *obj);
limit (get, set)
Limit how big the buffer can grow.
size_t efl_io_buffer_limit_get(const Eo *obj); void efl_io_buffer_limit_set(Eo *obj, size_t size);
position (get, set) [Overridden from Efl.Io.Positioner]
Position property
uint64_t efl_io_positioner_position_get(const Eo *obj); Eina_Bool efl_io_positioner_position_set(Eo *obj, uint64_t position);
position_read (get, set)
The position used by Efl.Io.Reader.read.
uint64_t efl_io_buffer_position_read_get(const Eo *obj); Eina_Bool efl_io_buffer_position_read_set(Eo *obj, uint64_t position);
position_write (get, set)
The position used by Efl.Io.Writer.write.
uint64_t efl_io_buffer_position_write_get(const Eo *obj); Eina_Bool efl_io_buffer_position_write_set(Eo *obj, uint64_t position);
Immediately pre-allocate a buffer of at least a given size.
void efl_io_buffer_preallocate(Eo *obj, size_t size);
read [Overridden from Efl.Io.Reader]
Reads data into a pre-allocated buffer.
Eina_Error efl_io_reader_read(Eo *obj, Eina_Rw_Slice rw_slice);
resize [Overridden from Efl.Io.Sizer]
Resize object
Eina_Error efl_io_sizer_resize(Eo *obj, uint64_t size);
seek [Overridden from Efl.Io.Positioner]
Seek in data
Eina_Error efl_io_positioner_seek(Eo *obj, int64_t offset, Efl_Io_Positioner_Whence whence);
size (get, set) [Overridden from Efl.Io.Sizer]
Size property
uint64_t efl_io_sizer_size_get(const Eo *obj); Eina_Bool efl_io_sizer_size_set(Eo *obj, uint64_t size);
slice (get)
Eina_Slice efl_io_buffer_slice_get(const Eo *obj);
write [Overridden from Efl.Io.Writer]
Writes data from a pre-populated buffer.
Eina_Error efl_io_writer_write(Eo *obj, Eina_Slice slice, Eina_Slice *remaining);
| Efl.Object | ||
|---|---|---|
| allow_parent_unref (get, set) | Allow an object to be deleted by unref even if it has a parent. | |
| children_iterator_new | Get an iterator on all children. | |
| comment (get, set) | A human readable comment for the object. | |
| composite_attach | Make an object a composite object of another. | |
| composite_detach | Detach a composite object from another object. | |
| composite_part_is | Check if an object is part of a composite object. | |
| constructor | Implement this method to provide optional initialization code for your object. | |
| debug_name_override | Build a read-only name for this object used for debugging. | |
| event_callback_forwarder_del | Remove an event callback forwarder for a specified event and object. | |
| event_callback_forwarder_priority_add | Add an event callback forwarder that will make this object emit an event whenever another object (source) emits it. The event is said to be forwarded from source to this object. |
|
| event_callback_stop | Stop the current callback call. | |
| event_freeze | Freeze events of this object. | |
| event_freeze_count (get) | ||
static | event_global_freeze | Globally freeze events for ALL EFL OBJECTS. |
static | event_global_freeze_count (get) | |
static | event_global_thaw | Globally thaw events for ALL EFL OBJECTS. |
| event_thaw | Thaw events of object. | |
| finalized (get) | ||
| invalidate | Implement this method to perform special actions when your object loses its parent, if you need to. | |
| invalidated (get) | ||
| invalidating (get) | ||
| name (get, set) | The name of the object. | |
| name_find | Find a child object with the given name and return it. | |
| parent (get, set) | The parent of an object. | |
| provider_find | Searches upwards in the object tree for a provider which knows the given class/interface. | |
| provider_register | Will register a manager of a specific class to be answered by Efl.Object.provider_find. | |
| provider_unregister | Will unregister a manager of a specific class that was previously registered and answered by Efl.Object.provider_find. | |
Notifies Efl.Io.Buffer.position_read changed
EFL_IO_BUFFER_EVENT_POSITION_READ_CHANGED(void)
Notifies Efl.Io.Buffer.position_write changed
EFL_IO_BUFFER_EVENT_POSITION_WRITE_CHANGED(void)
Notifies the internal buffer was reallocated, thus whatever was returned by Efl.Io.Buffer.slice becomes invalid.
EFL_IO_BUFFER_EVENT_REALLOCATED(void)
| Efl.Io.Closer | ||
|---|---|---|
| closed | Notifies closed, when property is marked as true | |
| Efl.Io.Positioner | ||
| position,changed | Notifies position changed | |
| Efl.Io.Reader | ||
| can_read,changed | Notifies can_read property changed. | |
| eos | Notifies end of stream, when property is marked as true. | |
| Efl.Io.Sizer | ||
| size,changed | Notifies size changed | |
| Efl.Io.Writer | ||
| can_write,changed | Notifies can_write property changed. | |
| Efl.Object | ||
| del | Object is being deleted. See Efl.Object.destructor. | |
| destruct | Object has been fully destroyed. It can not be used beyond this point. This event should only serve to clean up any reference you keep to the object. | |
| invalidate | Object is being invalidated and losing its parent. See Efl.Object.invalidate. | |
| noref | Object has lost its last reference, only parent relationship is keeping it alive. Advanced usage. | |
| ownership,shared | Object has acquired a second reference. It has multiple owners now. Triggered whenever increasing the refcount from one to two, it will not trigger by further increasing the refcount beyond two. | |
| ownership,unique | Object has lost a reference and only one is left. It has just one owner now. Triggered whenever the refcount goes from two to one. | |