Lines Matching defs:entity

19  * entity */
51 /* Return a boolean value indicating whether an IO entity is valid */
54 	const io_entity_t *entity = (io_entity_t *)handle;
56 	return (entity != NULL) &&
57 			(is_valid_dev((uintptr_t)entity->dev_handle));
83 /* Set a handle to track an entity */
84 static void set_handle(uintptr_t *handle, io_entity_t *entity)
87 	*handle = (uintptr_t)entity;
91 /* Locate an entity in the pool, specified by address */
92 static int find_first_entity(const io_entity_t *entity, unsigned int *index_out)
96 		if (entity_map[index] == entity) {
106 /* Allocate an entity from the pool and return a pointer to it */
107 static int allocate_entity(io_entity_t **entity)
110 	assert(entity != NULL);
116 		*entity = &entity_pool[index];
125 /* Release an entity back to the pool */
126 static int free_entity(const io_entity_t *entity)
130 	assert(entity != NULL);
132 	result = find_first_entity(entity, &index);
208 /* Open an IO entity */
216 	io_entity_t *entity;
218 	result = allocate_entity(&entity);
222 		result = dev->funcs->open(dev, spec, entity);
225 			entity->dev_handle = dev;
226 			set_handle(handle, entity);
228 			free_entity(entity);
234 /* Seek to a specific position in an IO entity */
240 	io_entity_t *entity = (io_entity_t *)handle;
242 	io_dev_info_t *dev = entity->dev_handle;
245 		result = dev->funcs->seek(entity, mode, offset);
251 /* Determine the length of an IO entity */
257 	io_entity_t *entity = (io_entity_t *)handle;
259 	io_dev_info_t *dev = entity->dev_handle;
262 		result = dev->funcs->size(entity, length);
268 /* Read data from an IO entity */
277 	io_entity_t *entity = (io_entity_t *)handle;
279 	io_dev_info_t *dev = entity->dev_handle;
282 		result = dev->funcs->read(entity, buffer, length, length_read);
288 /* Write data to an IO entity */
297 	io_entity_t *entity = (io_entity_t *)handle;
299 	io_dev_info_t *dev = entity->dev_handle;
302 		result = dev->funcs->write(entity, buffer, length,
310 /* Close an IO entity */
316 	io_entity_t *entity = (io_entity_t *)handle;
318 	io_dev_info_t *dev = entity->dev_handle;
322 		result = dev->funcs->close(entity);
325 	(void)free_entity(entity);