static int del_session(struct iscsi_target *target, unsigned long ptr)
{
int err;
struct session_info info;
if ((err = copy_from_user(&info, (void *) ptr, sizeof(info))) < 0)
return err;
return session_del(target, info.sid);
}
void session_close(session_list_t * list, session_t * session)
{
fclose(session->file);
fprintf(stdout, "DTNperf monitor: saved log file: %s\n\n", session->full_filename);
session_del(session_list, session);
}
// session expiration timer thread
void * session_expiration_timer(void * opt)
{
u32_t current_dtn_time;
struct timeval current_time;
session_t * session, * next;
while(1)
{
pthread_sleep(5);
current_dtn_time = get_current_dtn_time();
gettimeofday(¤t_time, NULL);
pthread_mutex_lock(&mutexdata);
for(session = session_list->first; session != NULL; session = next)
{
next = session->next;
// all status reports has been received: close session
if (session->total_to_receive > 0 && session->delivered_count == session->total_to_receive)
{
// close monitor if dedicated
if (dedicated_monitor)
{
kill(getpid(), SIGUSR2);
}
else
{
session_close(session_list, session);
}
}
// stop bundle arrived but not all the status reports have arrived and the timer has expired
else if (session->total_to_receive > 0 &&session->stop_arrival_time->tv_sec + session->wait_after_stop < current_time.tv_sec)
{
fprintf(stdout, "DTNperf monitor: Session Expired: Bundle stop arrived, but not all the status reports did\n");
// close monitor if dedicated
if (dedicated_monitor)
{
kill(getpid(), SIGUSR2);
}
else
{
fprintf(stdout, "\tsaved log file: %s\n\n", session->full_filename);
if (fclose(session->file) < 0)
perror("Error closing expired file:");
session_del(session_list, session);
}
}
// stop bundle is not yet arrived and the last bundle has expired
else if (session->last_bundle_time + session->expiration < current_dtn_time)
{
fprintf(stdout, "DTNperf monitor: Session Expired: Bundle stop did not arrive\n");
// close monitor if dedicated
if (dedicated_monitor)
{
kill(getpid(), SIGUSR2);
}
else
{
fprintf(stdout,"\tsaved log file: %s\n\n", session->full_filename);
if (fclose(session->file) < 0)
perror("Error closing expired file:");
session_del(session_list, session);
}
}
}
pthread_mutex_unlock(&mutexdata);
sched_yield();
}
pthread_exit(NULL);
}