| # Gaudi Framework, version v22r2 |

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# 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 15 of file ProcessDescriptor.cpp.

#define s_myPid (::getpid())

Definition at line 372 of file ProcessDescriptor.cpp.

#define WINVER 0

Definition at line 72 of file ProcessDescriptor.cpp.

## Function Documentation

static long processID | ( | long | pid ) | `[inline, static]`

Definition at line 373 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;
        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.

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