ProcessDescriptor.cpp File Reference

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

Include dependency graph for ProcessDescriptor.cpp:

Go to the source code of this file.

Classes
struct	linux_proc

Namespaces
	System
	Note: OS specific details for environment resolution.

Macros
#define	GAUDIKERNEL_PROCSTAT_CPP
#define	WINVER   0

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)

Macro Definition Documentation

#define GAUDIKERNEL_PROCSTAT_CPP

Definition at line 15 of file ProcessDescriptor.cpp.

#define WINVER   0

Definition at line 72 of file ProcessDescriptor.cpp.

Function Documentation

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 ) - 1 ) ) < 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 );
}