data_row *GetStat(void) {
if ( !stat_record )
ReadStat();
return stat_record;
} // End of GetStat
int UpdateStat(data_row *row, time_t when) {
data_row *oldrow;
int pnum, p, t;
time_t tslot;
if ( !stat_record ) {
ReadStat();
if ( !stat_record )
return 0;
}
// Add new slot
for(pnum=0; pnum<NUMPORTS; pnum++ ) {
for (p=0; p<2; p++) {
for (t=0; t<3; t++) {
stat_record[pnum].proto[p].type[t] += row[pnum].proto[p].type[t];
}
}
}
if ( (when - stat_header.last ) > 1800 ) {
// last update too far away
// pretend last update was max half an hour ago, otherwise it takes too long
stat_header.last = when - 300;
}
// Subtract old slots
for ( tslot = stat_header.last - (stat_header.av_num * 300); tslot < when - (stat_header.av_num * 300); tslot += 300 ) {
oldrow = RRD_GetDataRow(dbpath, tslot);
fprintf(stderr, "Remove stat line %s\n", ctime(&tslot));
for(pnum=0; pnum<NUMPORTS; pnum++ ) {
for (p=0; p<2; p++) {
for (t=0; t<3; t++) {
stat_record[pnum].proto[p].type[t] -= oldrow[pnum].proto[p].type[t];
}
}
}
}
stat_header.last = when;
dirty = 1;
return 1;
} // End of UpdateStat
void
GPMProcessEntry::Update
(
const JFloat elapsedTime
)
{
itsPercentMemory = 0;
#ifdef _J_HAS_PROC
try
{
ReadStat();
ReadStatM();
JSize mem;
if (GPMGetSystemMemory(&mem))
{
itsPercentMemory = JFloat(itsResident * 100) / mem;
}
// shared across #if
ReadCmdline(); // not in ctor, to make ctor faster
}
catch (...)
{
itsState = kZombie;
// std::cerr << "failed to update: " << itsPID << std::endl;
}
#elif defined _J_HAS_SYSCTL
{
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, itsPID };
kinfo_proc entry;
size_t len = sizeof(entry);
int result = sysctl(mib, 4, &entry, &len, NULL, 0);
if (result != 0)
{
itsState = kZombie;
}
else
{
itsCommand = entry.kp_proc.p_comm;
itsPPID = entry.kp_eproc.e_ppid;
itsPriority = entry.kp_proc.p_priority;
itsNice = entry.kp_proc.p_nice;
itsSize = 0;
itsResident = 0;
itsShare = 0;
itsUTime = entry.kp_proc.p_uticks;
itsSTime = entry.kp_proc.p_sticks;
if (entry.kp_proc.p_stat == SSLEEP)
{
itsState = kSleep;
}
else if (entry.kp_proc.p_stat == SSTOP)
{
itsState = kStopped;
}
else if (entry.kp_proc.p_stat == SZOMB)
{
itsState = kZombie;
}
else
{
itsState = kRun;
}
JSize mem;
if (GPMGetSystemMemory(&mem))
{
itsPercentMemory = JFloat(itsResident) / mem;
}
}
// shared across #if
ReadCmdline(); // not in ctor, to make ctor faster
}
#endif
SetName(itsCommand);
ShouldBeOpenable(HasChildren());
itsTime = (itsUTime + itsSTime) / sysconf(_SC_CLK_TCK);
JSize totalTime = (itsLastUTime == 0 || itsLastSTime == 0) ? 0 : (itsUTime - itsLastUTime) + (itsSTime - itsLastSTime);
itsLastUTime = itsUTime;
itsLastSTime = itsSTime;
itsPercentCPU = elapsedTime == 0 || itsState == kZombie ? 0 : JFloat(totalTime * 1000 / sysconf(_SC_CLK_TCK)) / (10 * elapsedTime);
}
bool ProcFS::ReadStat(pid_t pid, Stat &stat) {
return ReadStat(pid, pid, stat);
}
