int ftape_abort_operation(void)
{
int result = 0;
int status;
TRACE_FUN(ft_t_flow);
if (ft_runner_status == running) {
TRACE(ft_t_noise, "aborting runner, waiting");
ft_runner_status = do_abort;
/* set timeout so that the tape will run to logical EOT
* if we missed the last sector and there are no queue pulses.
*/
result = ftape_dumb_stop();
}
if (ft_runner_status != idle) {
if (ft_runner_status == do_abort) {
TRACE(ft_t_noise, "forcing runner abort");
}
TRACE(ft_t_noise, "stopping tape");
result = ftape_stop_tape(&status);
ft_location.known = 0;
ft_runner_status = idle;
}
ftape_reset_buffer();
ftape_zap_read_buffers();
ftape_set_state(idle);
TRACE_EXIT result;
}
/* Read given segment into buffer at address.
*/
int ftape_read_segment_fraction(const int segment_id,
void *address,
const ft_read_mode_t read_mode,
const int start,
const int size)
{
int result = 0;
int retry = 0;
int bytes_read = 0;
int read_done = 0;
TRACE_FUN(ft_t_flow);
ft_history.used |= 1;
TRACE(ft_t_data_flow, "segment_id = %d", segment_id);
if (ft_driver_state != reading) {
TRACE(ft_t_noise, "calling ftape_abort_operation");
TRACE_CATCH(ftape_abort_operation(),);
ftape_set_state(reading);
}
static void zft_init_driver(void)
{
TRACE_FUN(ft_t_flow);
zft_resid =
zft_header_read =
zft_old_ftape =
zft_offline =
zft_write_protected =
going_offline =
zft_mt_compression =
zft_header_changed =
zft_volume_table_changed =
zft_written_segments = 0;
zft_blk_sz = CONFIG_ZFT_DFLT_BLK_SZ;
zft_reset_position(&zft_pos); /* does most of the stuff */
ftape_zap_read_buffers();
ftape_set_state(idle);
TRACE_EXIT;
}
