GaudiAud: ProcStats Class Reference

ProcStats::ProcStats ( ) [private]

Definition at line 78 of file ProcStats.cpp.

00078                     :valid(false)
00079 {
00080 #ifdef __linux
00081   pg_size = sysconf(_SC_PAGESIZE); // getpagesize();
00082   std::ostringstream ost; 
00083 
00084   ost << "/proc/" << getpid() << "/stat";
00085   fname = ost.str();
00086   if((fd=open(fname.c_str(),O_RDONLY))<0)
00087   {
00088     cerr << "Failed to open " << ost.str() << endl;
00089     return;
00090   }
00091 #endif
00092   valid=true;
00093 }

ProcStats::~ProcStats ( ) [private]

Definition at line 95 of file ProcStats.cpp.

00096 {
00097 #ifdef __linux
00098   close(fd);
00099 #endif
00100 }

ProcStats * ProcStats::instance ( ) [static]

Definition at line 69 of file ProcStats.cpp.

00069                                {
00070   static cleanup c;
00071   if(inst==0)
00072     inst = new ProcStats;
00073   return inst;
00074 }

bool ProcStats::fetch ( procInfo & fill_me )

Definition at line 102 of file ProcStats.cpp.

00103 {
00104   if( valid == false ) return false;
00105 
00106 #ifdef __linux
00107   double pr_size, pr_rssize;
00108   linux_proc pinfo;
00109   int cnt;
00110 
00111   lseek(fd,0,SEEK_SET);
00112 
00113   if((cnt=read(fd,buf,sizeof(buf)))<0)
00114   {
00115     cout << "LINUX Read of Proc file failed:" << endl;
00116     return false;
00117   }
00118 
00119   if(cnt>0)
00120   {
00121     buf[cnt]='\0';
00122 
00123     sscanf(buf,
00124       "%d %s %c %d %d %d %d %d %u %u %u %u %u %d %d %d %d %d %d %u %u %d %u %u %u %u %u %u %u %u %d %d %d %d %u",
00125       &pinfo.pid, // %d
00126       pinfo.comm, // %s
00127       &pinfo.state, // %c
00128       &pinfo.ppid, // %d
00129       &pinfo.pgrp, // %d
00130       &pinfo.session, // %d
00131       &pinfo.tty, // %d
00132       &pinfo.tpgid, // %d
00133       &pinfo.flags, // %u
00134       &pinfo.minflt, // %u
00135       &pinfo.cminflt, // %u
00136       &pinfo.majflt, // %u
00137       &pinfo.cmajflt, // %u
00138       &pinfo.utime, // %d
00139       &pinfo.stime, // %d
00140       &pinfo.cutime, // %d
00141       &pinfo.cstime, // %d
00142       &pinfo.counter, // %d
00143       &pinfo.priority, // %d
00144       &pinfo.timeout, // %u
00145       &pinfo.itrealvalue, // %u
00146       &pinfo.starttime, // %d
00147       &pinfo.vsize, // %u
00148       &pinfo.rss, // %u
00149       &pinfo.rlim, // %u
00150       &pinfo.startcode, // %u
00151       &pinfo.endcode, // %u
00152       &pinfo.startstack, // %u
00153       &pinfo.kstkesp, // %u
00154       &pinfo.kstkeip, // %u
00155       &pinfo.signal, // %d
00156       &pinfo.blocked, // %d
00157       &pinfo.sigignore, // %d
00158       &pinfo.sigcatch, // %d
00159       &pinfo.wchan // %u
00160       );
00161 
00162       // resident set size in pages
00163     pr_size = (double)pinfo.vsize;
00164     pr_rssize = (double)pinfo.rss;
00165 
00166     f.vsize = pr_size   / (1024*1024);
00167     f.rss   = pr_rssize * pg_size / (1024*1024);
00168   }
00169 
00170 #else
00171   f.vsize = 0;
00172   f.rss   = 0;
00173 #endif
00174 
00175   bool rc = (curr==f)?false:true;
00176 
00177   curr.rss=f.rss;
00178   curr.vsize=f.vsize;
00179 
00180   return rc;
00181 }

double ProcStats::pageSize ( ) const [inline]

Definition at line 31 of file ProcStats.h.

00031 { return pg_size; }

friend struct cleanup [friend]

Definition at line 43 of file ProcStats.h.

int ProcStats::fd [private]

Definition at line 45 of file ProcStats.h.

double ProcStats::pg_size [private]

Definition at line 46 of file ProcStats.h.

procInfo ProcStats::curr [private]

Definition at line 47 of file ProcStats.h.

std::string ProcStats::fname [private]

Definition at line 48 of file ProcStats.h.

char ProcStats::buf[500] [private]

Definition at line 49 of file ProcStats.h.

bool ProcStats::valid [private]

Definition at line 50 of file ProcStats.h.

ProcStats * ProcStats::inst = 0 [static, private]

Definition at line 52 of file ProcStats.h.

In This Package:

ProcStats Class Reference

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Classes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation


Public Member Functions
bool	fetch (procInfo &fill_me)
double	pageSize () const
Static Public Member Functions
static ProcStats *	instance ()
Private Member Functions
	ProcStats ()
	~ProcStats ()
Private Attributes
int	fd
double	pg_size
procInfo	curr
std::string	fname
char	buf [500]
bool	valid
Static Private Attributes
static ProcStats *	inst = 0
Friends
struct	cleanup
Classes
struct	cleanup