Ejemplos de td_complete_request en C++ (Cpp)

Ejemplo n.º 1

Archivo: tapdisk-interface.c Proyecto: OpenXT/blktap

void
td_queue_read(td_image_t *image, td_request_t treq)
{
	int err;
	td_driver_t *driver;

	driver = image->driver;
	if (!driver) {
		err = -ENODEV;
		goto fail;
	}

	if (!td_flag_test(driver->state, TD_DRIVER_OPEN)) {
		err = -EBADF;
		goto fail;
	}

	err = tapdisk_image_check_td_request(image, treq);
	if (err)
		goto fail;

	driver->ops->td_queue_read(driver, treq);
	return;

fail:
	td_complete_request(treq, err);
}

Ejemplo n.º 2

Archivo: block-vindex.c Proyecto: xapi-project/blktap

static inline void
vhd_index_signal_completion(vhd_index_t *index,
			    vhd_index_request_t *req, int err)
{
	td_complete_request(req->treq, err);
	vhd_index_put_file_ref(req->file);
	vhd_index_free_request(index, req);
}

Ejemplo n.º 3

Archivo: block-vindex.c Proyecto: xapi-project/blktap

static void
vhd_index_queue_write(td_driver_t *driver, td_request_t treq)
{
	td_complete_request(treq, -EPERM);
}

Ejemplo n.º 4

Archivo: block-vindex.c Proyecto: xapi-project/blktap

static void
vhd_index_queue_read(td_driver_t *driver, td_request_t treq)
{
	vhd_index_t *index;

	index = (vhd_index_t *)driver->data;

	while (treq.secs) {
		int err;
		td_request_t clone;

		err   = 0;
		clone = treq;

		switch (vhd_index_read_cache(index, clone.sec)) {
		case -EINVAL:
			err = -EINVAL;
			goto fail;

		case VHD_INDEX_BAT_CLEAR:
			clone.secs = MIN(clone.secs, index->vhdi.spb - (clone.sec % index->vhdi.spb));
			td_forward_request(clone);
			break;

		case VHD_INDEX_BIT_CLEAR:
			clone.secs = vhd_index_read_cache_span(index, clone.sec, clone.secs, 0);
			td_forward_request(clone);
			break;

		case VHD_INDEX_BIT_SET:
			clone.secs = vhd_index_read_cache_span(index, clone.sec, clone.secs, 1);
			err = vhd_index_schedule_data_read(index, clone);
			if (err)
				goto fail;
			break;

		case VHD_INDEX_CACHE_MISS:
			err = vhd_index_schedule_meta_read(index, clone.sec / index->vhdi.spb);
			if (err)
				goto fail;

			clone.secs = MIN(clone.secs, index->vhdi.spb - (clone.sec % index->vhdi.spb));
			vhd_index_queue_request(index, clone);
			break;

		case VHD_INDEX_META_READ_PENDING:
			clone.secs = MIN(clone.secs, index->vhdi.spb - (clone.sec % index->vhdi.spb));
			err = vhd_index_queue_request(index, clone);
			if (err)
				goto fail;
			break;
		}

		treq.sec  += clone.secs;
		treq.secs -= clone.secs;
		treq.buf  += vhd_sectors_to_bytes(clone.secs);
		continue;

	fail:
		clone.secs = treq.secs;
		td_complete_request(clone, err);
		break;
	}
}