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.
Defines
#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)

---

Define Documentation

#define GAUDIKERNEL_PROCSTAT_CPP

Definition at line 16 of file ProcessDescriptor.cpp.

#define s_myPid   (::getpid())

Definition at line 204 of file ProcessDescriptor.cpp.

#define WINVER   0

Definition at line 73 of file ProcessDescriptor.cpp.

---

Function Documentation

static long processID

(

long

pid )

[inline, static]

Definition at line 205 of file ProcessDescriptor.cpp.

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

void readProcStat	(	long	pid,
		linux_proc &	pinfo
	)

Definition at line 137 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;
    return;
  }
  
  if(cnt>0)     {
    buf[cnt]='\0';
    sscanf(buf,
           "%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 %lu %lu %u %u %u %d %d %d %d %u",
           &pinfo.pid, // %d
           pinfo.comm, // %s
           &pinfo.state, // %c
           &pinfo.ppid, // %d
           &pinfo.pgrp, // %d
           &pinfo.session, // %d
           &pinfo.tty, // %d
           &pinfo.tpgid, // %d
           &pinfo.flags, // %u
           &pinfo.minflt, // %u
           &pinfo.cminflt, // %u
           &pinfo.majflt, // %u
           &pinfo.cmajflt, // %u
           &pinfo.utime, // %d
           &pinfo.stime, // %d
           &pinfo.cutime, // %d
           &pinfo.cstime, // %d
           &pinfo.counter, // %d
           &pinfo.priority, // %d
           &pinfo.timeout, // %u
           &pinfo.itrealvalue, // %u
           &pinfo.starttime, // %d
           &pinfo.vsize, // %u
           &pinfo.rss, // %u
           &pinfo.rlim, // %u
           &pinfo.startcode, // %l
           &pinfo.endcode, // %l
           &pinfo.startstack, // %u
           &pinfo.kstkesp, // %u
           &pinfo.kstkeip, // %u
           &pinfo.signal, // %d
           &pinfo.blocked, // %d
           &pinfo.sigignore, // %d
           &pinfo.sigcatch, // %d
           &pinfo.wchan // %u
           );
  }
  close(fd);
}

---

Variable Documentation

long pg_size = sysconf(_SC_PAGESIZE) [static]

Definition at line 135 of file ProcessDescriptor.cpp.

const long TICK_TO_100NSEC = 100000 [static]

Definition at line 18 of file ProcessDescriptor.cpp.