// Display all processes and relevant network traffic using show function
void do_refresh()
{
refreshconninode();
refreshcount++;
ProcList * curproc = processes;
ProcList * previousproc = NULL;
int nproc = processes->size();
/* initialise to null pointers */
Line * lines [nproc];
int n = 0;
#ifndef NDEBUG
// initialise to null pointers
for (int i = 0; i < nproc; i++)
lines[i] = NULL;
#endif
while (curproc != NULL)
{
// walk though its connections, summing up their data, and
// throwing away connections that haven't received a package
// in the last PROCESSTIMEOUT seconds.
assert (curproc != NULL);
assert (curproc->getVal() != NULL);
assert (nproc == processes->size());
/* remove timed-out processes (unless it's one of the the unknown process) */
if ((curproc->getVal()->getLastPacket() + PROCESSTIMEOUT <= curtime.tv_sec)
&& (curproc->getVal() != unknowntcp)
&& (curproc->getVal() != unknownudp)
&& (curproc->getVal() != unknownip))
{
if (DEBUG)
std::cout << "PROC: Deleting process\n";
ProcList * todelete = curproc;
Process * p_todelete = curproc->getVal();
if (previousproc)
{
previousproc->next = curproc->next;
curproc = curproc->next;
} else {
processes = curproc->getNext();
curproc = processes;
}
delete todelete;
delete p_todelete;
nproc--;
//continue;
}
else
{
// add a non-timed-out process to the list of stuff to show
float value_sent = 0,
value_recv = 0;
if (viewMode == VIEWMODE_KBPS)
{
//std::cout << "kbps viemode" << std::endl;
getkbps (curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_KB)
{
//std::cout << "total viemode" << std::endl;
gettotalkb(curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_MB)
{
//std::cout << "total viemode" << std::endl;
gettotalmb(curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_B)
{
//std::cout << "total viemode" << std::endl;
gettotalb(curproc->getVal(), &value_recv, &value_sent);
}
else
{
forceExit(false, "Invalid viewMode: %d", viewMode);
}
uid_t uid = curproc->getVal()->getUid();
#ifndef NDEBUG
struct passwd * pwuid = getpwuid(uid);
assert (pwuid != NULL);
// value returned by pwuid should not be freed, according to
// Petr Uzel.
//free (pwuid);
#endif
assert (curproc->getVal()->pid >= 0);
assert (n < nproc);
lines[n] = new Line (curproc->getVal()->name, value_recv, value_sent,
curproc->getVal()->pid, uid, curproc->getVal()->devicename);
previousproc = curproc;
curproc = curproc->next;
n++;
#ifndef NDEBUG
assert (nproc == processes->size());
if (curproc == NULL)
assert (n-1 < nproc);
else
assert (n < nproc);
#endif
}
}
/* sort the accumulated lines */
qsort (lines, nproc, sizeof(Line *), GreatestFirst);
if (tracemode || DEBUG)
show_trace(lines, nproc);
else
show_ncurses(lines, nproc);
if (refreshlimit != 0 && refreshcount >= refreshlimit)
quit_cb(0);
}
// Display all processes and relevant network traffic using show function
void do_refresh()
{
int rows; // number of terminal rows
int cols; // number of terminal columns
unsigned int proglen; // max length of the "PROGRAM" column
getmaxyx(stdscr, rows, cols); /* find the boundaries of the screeen */
if (cols < 60) {
clear();
mvprintw(0,0, "The terminal is too narrow! Please make it wider.\nI'll wait...");
return;
}
if (cols > PROGNAME_WIDTH) cols = PROGNAME_WIDTH;
proglen = cols - 53;
refreshconninode();
if (DEBUG || tracemode)
{
std::cout << "\nRefreshing:\n";
}
else
{
clear();
mvprintw (0, 0, "%s", caption->c_str());
attron(A_REVERSE);
mvprintw (2, 0, " PID USER %-*.*s DEV SENT RECEIVED ", proglen, proglen, "PROGRAM");
attroff(A_REVERSE);
}
ProcList * curproc = processes;
ProcList * previousproc = NULL;
int nproc = processes->size();
/* initialise to null pointers */
Line * lines [nproc];
int n = 0, i = 0;
double sent_global = 0;
double recv_global = 0;
#ifndef NDEBUG
// initialise to null pointers
for (int i = 0; i < nproc; i++)
lines[i] = NULL;
#endif
while (curproc != NULL)
{
// walk though its connections, summing up their data, and
// throwing away connections that haven't received a package
// in the last PROCESSTIMEOUT seconds.
assert (curproc != NULL);
assert (curproc->getVal() != NULL);
assert (nproc == processes->size());
/* remove timed-out processes (unless it's one of the the unknown process) */
if ((curproc->getVal()->getLastPacket() + PROCESSTIMEOUT <= curtime.tv_sec)
&& (curproc->getVal() != unknowntcp)
&& (curproc->getVal() != unknownudp)
&& (curproc->getVal() != unknownip))
{
if (DEBUG)
std::cout << "PROC: Deleting process\n";
ProcList * todelete = curproc;
Process * p_todelete = curproc->getVal();
if (previousproc)
{
previousproc->next = curproc->next;
curproc = curproc->next;
} else {
processes = curproc->getNext();
curproc = processes;
}
delete todelete;
delete p_todelete;
nproc--;
//continue;
}
else
{
// add a non-timed-out process to the list of stuff to show
float value_sent = 0,
value_recv = 0;
if (viewMode == VIEWMODE_KBPS)
{
//std::cout << "kbps viemode" << std::endl;
getkbps (curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_KB)
{
//std::cout << "total viemode" << std::endl;
gettotalkb(curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_MB)
{
//std::cout << "total viemode" << std::endl;
gettotalmb(curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_B)
{
//std::cout << "total viemode" << std::endl;
gettotalb(curproc->getVal(), &value_recv, &value_sent);
}
else
{
forceExit(false, "Invalid viewMode: %d", viewMode);
}
uid_t uid = curproc->getVal()->getUid();
#ifndef NDEBUG
struct passwd * pwuid = getpwuid(uid);
assert (pwuid != NULL);
// value returned by pwuid should not be freed, according to
// Petr Uzel.
//free (pwuid);
#endif
assert (curproc->getVal()->pid >= 0);
assert (n < nproc);
lines[n] = new Line (curproc->getVal()->name, value_recv, value_sent,
curproc->getVal()->pid, uid, curproc->getVal()->devicename);
previousproc = curproc;
curproc = curproc->next;
n++;
#ifndef NDEBUG
assert (nproc == processes->size());
if (curproc == NULL)
assert (n-1 < nproc);
else
assert (n < nproc);
#endif
}
}
/* sort the accumulated lines */
qsort (lines, nproc, sizeof(Line *), GreatestFirst);
/* print them */
for (i=0; i<nproc; i++)
{
if (i+3 < rows)
lines[i]->show(i+3, proglen);
recv_global += lines[i]->recv_value;
sent_global += lines[i]->sent_value;
delete lines[i];
}
if (tracemode || DEBUG) {
/* print the 'unknown' connections, for debugging */
ConnList * curr_unknownconn = unknowntcp->connections;
while (curr_unknownconn != NULL) {
std::cout << "Unknown connection: " <<
curr_unknownconn->getVal()->refpacket->gethashstring() << std::endl;
curr_unknownconn = curr_unknownconn->getNext();
}
}
if ((!tracemode) && (!DEBUG)){
attron(A_REVERSE);
int totalrow = std::min(rows-1, 3+1+i);
mvprintw (totalrow, 0, " TOTAL %-*.*s %10.3f %10.3f ", proglen, proglen, " ", sent_global, recv_global);
if (viewMode == VIEWMODE_KBPS)
{
mvprintw (3+1+i, cols - 7, "KB/sec ");
} else if (viewMode == VIEWMODE_TOTAL_B) {
mvprintw (3+1+i, cols - 7, "B ");
} else if (viewMode == VIEWMODE_TOTAL_KB) {
mvprintw (3+1+i, cols - 7, "KB ");
} else if (viewMode == VIEWMODE_TOTAL_MB) {
mvprintw (3+1+i, cols - 7, "MB ");
}
attroff(A_REVERSE);
mvprintw (totalrow+1, 0, "");
refresh();
}
}
static void nethogsmonitor_handle_update(NethogsMonitorCallback cb) {
refreshconninode();
refreshcount++;
ProcList *curproc = processes;
ProcList *previousproc = NULL;
int nproc = processes->size();
while (curproc != NULL) {
// walk though its connections, summing up their data, and
// throwing away connections that haven't received a package
// in the last PROCESSTIMEOUT seconds.
assert(curproc != NULL);
assert(curproc->getVal() != NULL);
assert(nproc == processes->size());
/* remove timed-out processes (unless it's one of the unknown process)
*/
if ((curproc->getVal()->getLastPacket() + PROCESSTIMEOUT <=
curtime.tv_sec) &&
(curproc->getVal() != unknowntcp) &&
(curproc->getVal() != unknownudp) && (curproc->getVal() != unknownip)) {
if (DEBUG)
std::cout << "PROC: Deleting process\n";
NethogsRecordMap::iterator it = monitor_record_map.find(curproc);
if (it != monitor_record_map.end()) {
NethogsMonitorRecord &data = it->second;
(*cb)(NETHOGS_APP_ACTION_REMOVE, &data);
monitor_record_map.erase(curproc);
}
ProcList *todelete = curproc;
Process *p_todelete = curproc->getVal();
if (previousproc) {
previousproc->next = curproc->next;
curproc = curproc->next;
} else {
processes = curproc->getNext();
curproc = processes;
}
delete todelete;
delete p_todelete;
nproc--;
// continue;
} else {
const u_int32_t uid = curproc->getVal()->getUid();
u_int32_t sent_bytes;
u_int32_t recv_bytes;
float sent_kbs;
float recv_kbs;
curproc->getVal()->getkbps(&recv_kbs, &sent_kbs);
curproc->getVal()->gettotal(&recv_bytes, &sent_bytes);
// notify update
bool const new_data =
(monitor_record_map.find(curproc) == monitor_record_map.end());
NethogsMonitorRecord &data = monitor_record_map[curproc];
bool data_change = false;
if (new_data) {
data_change = true;
static int record_id = 0;
++record_id;
memset(&data, 0, sizeof(data));
data.record_id = record_id;
data.name = curproc->getVal()->name;
data.pid = curproc->getVal()->pid;
}
data.device_name = curproc->getVal()->devicename;
#define NHM_UPDATE_ONE_FIELD(TO, FROM) \
if ((TO) != (FROM)) { \
TO = FROM; \
data_change = true; \
}
NHM_UPDATE_ONE_FIELD(data.uid, uid)
NHM_UPDATE_ONE_FIELD(data.sent_bytes, sent_bytes)
NHM_UPDATE_ONE_FIELD(data.recv_bytes, recv_bytes)
NHM_UPDATE_ONE_FIELD(data.sent_kbs, sent_kbs)
NHM_UPDATE_ONE_FIELD(data.recv_kbs, recv_kbs)
#undef NHM_UPDATE_ONE_FIELD
if (data_change) {
(*cb)(NETHOGS_APP_ACTION_SET, &data);
}
// next
previousproc = curproc;
curproc = curproc->next;
}
}
}