pqi_cmd_action
pqi_cmd_action_t pqi_cmd_action(pqi_cmd_t *cmd, pqi_cmd_action_t a);
if (pqi_cmd_action(io->io_cmd, PQI_CMD_START) == PQI_CMD_FAIL)
(void) pqi_cmd_action(cmd, PQI_CMD_QUEUE);
(void) pqi_cmd_action(&cmd, PQI_CMD_QUEUE);
(void) pqi_cmd_action(&cmd, PQI_CMD_CMPLT);
(void) pqi_cmd_action(cmd, PQI_CMD_CMPLT);
(void) pqi_cmd_action(c, PQI_CMD_QUEUE);
(void) pqi_cmd_action(c, PQI_CMD_CMPLT);