ProcessDescriptor.cpp File Reference

#include <errno.h>
#include <string>
#include "unistd.h"
#include "libgen.h"
#include <cstdio>
#include <sstream>
#include <iostream>
#include <fcntl.h>
#include "sys/times.h"
#include <sys/types.h>
#include <sys/signal.h>
#include <sys/syscall.h>
#include <sys/procfs.h>
#include <sys/time.h>
#include <sys/resource.h>
#include "ProcessDescriptor.h"
#include "GaudiKernel/ModuleInfo.h"
#include "GaudiKernel/System.h"

Include dependency graph for ProcessDescriptor.cpp:

Go to the source code of this file.

Classes
struct	linux_proc

Namespaces
namespace	System
	Note: OS specific details for environment resolution.

Macros
#define	GAUDIKERNEL_PROCSTAT_CPP
#define	WINVER   0
#define	s_myPid   (::getpid())

Enumerations
enum	System::ProcessInfoCommand {   System::ProcessBasicInformation, System::ProcessQuotaLimits, System::ProcessIoCounters, System::ProcessVmCounters,   System::ProcessTimes, System::ProcessBasePriority, System::ProcessRaisePriority, System::ProcessDebugPort,   System::ProcessExceptionPort, System::ProcessAccessToken, System::ProcessLdtInformation, System::ProcessLdtSize,   System::ProcessDefaultHardErrorMode, System::ProcessIoPortHandlers, System::ProcessPooledUsageAndLimits, System::ProcessWorkingSetWatch,   System::ProcessUserModeIOPL, System::ProcessEnableAlignmentFaultFixup, System::ProcessPriorityClass, System::ProcessWx86Information,   System::ProcessHandleCount, System::ProcessAffinityMask, System::ProcessPriorityBoost, System::MaxProcessInfoClass,   System::ProcessEllapsedTime }

Functions
void	readProcStat (long pid, linux_proc &pinfo)
static long	processID (long pid)

Variables
static const long	TICK_TO_100NSEC = 100000
static long	pg_size = sysconf(_SC_PAGESIZE)

Macro Definition Documentation

#define GAUDIKERNEL_PROCSTAT_CPP

Definition at line 15 of file ProcessDescriptor.cpp.

#define s_myPid   (::getpid())

Definition at line 373 of file ProcessDescriptor.cpp.

#define WINVER   0

Definition at line 72 of file ProcessDescriptor.cpp.

Function Documentation

static long processID ( long  pid )

inlinestatic

Definition at line 374 of file ProcessDescriptor.cpp.

                                       {
  long thePid = (pid>0) ? pid : s_myPid;
  return thePid;
}

void readProcStat	(	long	pid,
		linux_proc &	pinfo
	)

Definition at line 303 of file ProcessDescriptor.cpp.

                                               {

  int cnt, fd;
  char buf[512];

  std::ostringstream ost;

  ost << "/proc/" << pid << "/stat";
  std::string fname = ost.str();
  if((fd=open(fname.c_str(),O_RDONLY))<0)  {
    std::cerr << "Failed to open " << ost.str() << std::endl;
    return;
  }

  lseek(fd,0,SEEK_SET);
  if((cnt=read(fd,buf,sizeof(buf)))<0) {
    std::cout << "LINUX Read of Proc file failed:" << std::endl;
    close(fd);
    return;
  }

  // Format
  if(cnt>0) {
    buf[cnt]='\0';
    sscanf(buf,
           //1  2  3  4  5  6  7  8  9  10  1   2   3   4   5   6   7   8   9   20  1   2   3   4   5   6   7   8   9   30  1   2   3   4   5
           "%d %s %c %d %d %d %d %d %lu %lu %lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %llu %lu %ld %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu",
           &pinfo.pid,
           pinfo.comm,
           &pinfo.state,
           &pinfo.ppid,
           &pinfo.pgrp,
           &pinfo.session,
           &pinfo.tty,
           &pinfo.tpgid,
           &pinfo.flags,
           &pinfo.minflt,
           &pinfo.cminflt,
           &pinfo.majflt,
           &pinfo.cmajflt,
           &pinfo.utime,
           &pinfo.stime,
           &pinfo.cutime,
           &pinfo.cstime,
           &pinfo.priority,
           &pinfo.nice,
           &pinfo.num_threads,
           &pinfo.itrealvalue,
           &pinfo.starttime,
           &pinfo.vsize,
           &pinfo.rss,
           &pinfo.rlim,
           &pinfo.startcode,
           &pinfo.endcode,
           &pinfo.startstack,
           &pinfo.kstkesp,
           &pinfo.kstkeip,
           &pinfo.signal,
           &pinfo.blocked,
           &pinfo.sigignore,
           &pinfo.sigcatch,
           &pinfo.wchan
           );
  }
  close(fd);
}

Variable Documentation

long pg_size = sysconf(_SC_PAGESIZE)

static

Definition at line 301 of file ProcessDescriptor.cpp.

const long TICK_TO_100NSEC = 100000

static

Definition at line 17 of file ProcessDescriptor.cpp.