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Classes | Public Member Functions | List of all members
System::ProcessDescriptor Class Reference

Provides access to process information. More...

`#include <src/Lib/ProcessDescriptor.h>`

## Classes
class | ProcessHandle

## Public Member Functions
| ProcessDescriptor ()
virtual | ~ProcessDescriptor ()
long | query (long pid, InfoType info, PROCESS_BASIC_INFORMATION *buffer)
long | query (long pid, InfoType info, POOLED_USAGE_AND_LIMITS *buffer)
long | query (long pid, InfoType info, KERNEL_USER_TIMES *buffer)
long | query (long pid, InfoType info, QUOTA_LIMITS *buffer)
long | query (long pid, InfoType info, VM_COUNTERS *buffer)
long | query (long pid, InfoType info, IO_COUNTERS *buffer)
long | query (long pid, InfoType info, long *buffer)

## Detailed Description

Provides access to process information.

Author
  M.Frank
  Sebastien Ponce

Definition at line 109 of file ProcessDescriptor.h.

## Constructor & Destructor Documentation

System::ProcessDescriptor::ProcessDescriptor | ( |  | ) |

Definition at line 415 of file ProcessDescriptor.cpp.

416 {
417 #ifdef _WIN32
418 static bool first = true;
419 if ( first ) {
420 first = false;
421 void* mh = ::LoadLibrary("NTDll.dll");
422 if ( mh ) {
423 NtApi::NtQueryInformationProcess = (NtApi::__NtQueryInformationProcess)
424 ::GetProcAddress((HINSTANCE)mh, "NtQueryInformationProcess");
425 }
426 }
427 #endif
428 }

System::ProcessDescriptor::~ProcessDescriptor | ( |  | ) |
| virtual

Definition at line 430 of file ProcessDescriptor.cpp.

430 {
431 }

## Member Function Documentation

long System::ProcessDescriptor::query | ( | long | pid,
|  | InfoType | info,
|  | PROCESS_BASIC_INFORMATION * | buffer
| ) |  |

Definition at line 642 of file ProcessDescriptor.cpp.

644 {
645 if (info==0) return 0;
646 long status = 1;
647
648 if ( fetch == ProcessBasics ) {
649 #if defined(_WIN32) && WINVER>=0x0400 // Windows NT
650 ProcessHandle h(pid);
651 status = NtApi::NtQueryInformationProcess(h.handle(),
652 ProcessBasicInformation,
653 info,
654 sizeof(PROCESS_BASIC_INFORMATION),
655 0);
656 status = (status==0) ? 1 : 0;
657 #elif defined(_WIN32) // Windows 95,98...
658 #elif defined(__linux) // Linux
659 linux_proc prc;
660 pid = processID(pid);
661 readProcStat(pid, prc);
662 info->ExitStatus = 0;
663 info->PebBaseAddress = (PPEB)prc.startcode;
664 info->BasePriority = 2*15-prc.priority;
665 // std::cout << "Base Priority=" << info->BasePriority << "|"
666 // << prc.priority << std::endl;
667 info->AffinityMask = prc.flags;
668 // std::cout << "Flags =" << info->AffinityMask << "|"
669 // << prc.flags << std::endl;
670 info->UniqueProcessId = pid;
671 info->InheritedFromUniqueProcessId = prc.ppid;
672 #else // All Other
673 #endif // End ALL OS
674 }
675 return status;
676 }
System::ProcessBasicInformation
Definition: ProcessDescriptor.cpp:23
linux_proc::flags
unsigned long flags
Definition: ProcessDescriptor.cpp:271
linux_proc
Definition: ProcessDescriptor.cpp:262
readProcStat
void readProcStat(long pid, linux_proc &pinfo)
Definition: ProcessDescriptor.cpp:305
HiveAlgSequencer.h
h
Definition: HiveAlgSequencer.py:24
linux_proc::priority
long priority
Definition: ProcessDescriptor.cpp:280
linux_proc::startcode
unsigned long startcode
Definition: ProcessDescriptor.cpp:288
System::PPEB
struct _PEB * PPEB
Basic Process Information NtQueryInformationProcess using ProcessBasicInfo.
Definition: ProcessDescriptor.h:17
linux_proc::ppid
int ppid
Definition: ProcessDescriptor.cpp:266
System::ProcessBasics
Definition: SystemBase.h:21
System::ProcessHandle
void * ProcessHandle
Definition of the process handle.
Definition: ModuleInfo.h:32

long System::ProcessDescriptor::query | ( | long | pid,
|  | InfoType | info,
|  | POOLED_USAGE_AND_LIMITS * | buffer
| ) |  |

Definition at line 466 of file ProcessDescriptor.cpp.

468 {
469 if (info==0) return 0;
470 long status = 1;
471
472 if ( fetch == Quota ) {
473 #if defined(_WIN32) && WINVER>=0x0400 // Windows NT
474 ProcessHandle h(pid);
475 status = NtApi::NtQueryInformationProcess(h.handle(),
476 ProcessPooledUsageAndLimits,
477 info,
478 sizeof(POOLED_USAGE_AND_LIMITS),
479 0);
480 status = (status==0) ? 1 : 0;
481 #elif defined(_WIN32) // Windows 95,98...
482 #elif defined(__linux) // Linux
483 //rusage usage;
484 //getrusage(RUSAGE_SELF, &usage);
485 rlimit lim;
486
487 getrlimit(RLIMIT_DATA, &lim);
488 if ( lim.rlim_max == RLIM_INFINITY ) lim.rlim_max = 0xFFFFFFFF;
489 info->PeakPagedPoolUsage = lim.rlim_cur;
490 info->PagedPoolUsage = lim.rlim_cur;
491 info->PagedPoolLimit = lim.rlim_max;
492
493 getrlimit(RLIMIT_STACK, &lim);
494 if ( lim.rlim_max == RLIM_INFINITY ) lim.rlim_max = 0xFFFFFFFF;
495 info->PeakNonPagedPoolUsage = lim.rlim_cur;
496 info->NonPagedPoolUsage = lim.rlim_cur;
497 info->NonPagedPoolLimit = lim.rlim_max;
498
499 linux_proc prc;
500 readProcStat(processID(pid), prc);
501 info->PeakPagefileUsage = prc.rss * pg_size;
502 info->PagefileUsage = prc.rss * pg_size;
503 info->PagefileLimit = 0xFFFFFFFF;
504 #elif defined(__APPLE__)
505 #else // All Other
506 #endif // End ALL OS
507 }
508
509 return status;
510 }
linux_proc
Definition: ProcessDescriptor.cpp:262
readProcStat
void readProcStat(long pid, linux_proc &pinfo)
Definition: ProcessDescriptor.cpp:305
HiveAlgSequencer.h
h
Definition: HiveAlgSequencer.py:24
System::Quota
Definition: SystemBase.h:24
linux_proc::rss
long rss
Definition: ProcessDescriptor.cpp:286
System::ProcessPooledUsageAndLimits
Definition: ProcessDescriptor.cpp:37
System::ProcessHandle
void * ProcessHandle
Definition of the process handle.
Definition: ModuleInfo.h:32

long System::ProcessDescriptor::query | ( | long | pid,
|  | InfoType | info,
|  | KERNEL_USER_TIMES * | buffer
| ) |  |

Definition at line 678 of file ProcessDescriptor.cpp.

680 {
681 if (info==0) return 0;
682 long status = 1;
683
684 if ( fetch == Times ) {
685 #if defined(_WIN32) && WINVER>=0x0400 // Windows NT
686 ProcessHandle h(pid);
687 status = NtApi::NtQueryInformationProcess(h.handle(),
688 ProcessTimes,
689 info,
690 sizeof(KERNEL_USER_TIMES),
691 0);
692 status = (status==0) ? 1 : 0;
693 #elif defined(_WIN32) // Windows 95,98...
694 #elif defined(__linux) // Linux
695 static longlong prc_start = 0;
696 bool myself = pid<=0 || pid==::getpid(); // avoid unnecessary calls to getpid if pid<0
697 if ( myself && prc_start == 0 ) { // called only once to set prc_start
698 linux_proc prc;
699 readProcStat( processID(pid), prc);
700 // prc.startup is in ticks since system start, need to offset for absolute time
701 tms tmsb;
702 static longlong offset = 100*longlong(time(nullptr)) - longlong(times(&tmsb));
703 prc_start = (prc.starttime+offset) * TICK_TO_100NSEC;
704 }
705
706 if ( myself ) { // myself
707 tms tmsb;
708 times(&tmsb);
709 info->UserTime = tmsb.tms_utime * TICK_TO_100NSEC;
710 info->KernelTime = tmsb.tms_stime * TICK_TO_100NSEC;
711 info->CreateTime = prc_start;
712 }
713 else { // other process
714 linux_proc prc;
715 readProcStat( processID(pid), prc );
716 tms tmsb;
717 static longlong offset = 100*longlong(time(nullptr)) - longlong(times(&tmsb));
718
719 tms t;
720 times(&t);
721 info->UserTime = t.tms_utime * TICK_TO_100NSEC;
722 info->KernelTime = t.tms_stime * TICK_TO_100NSEC;
723 info->CreateTime = (prc.starttime+offset) * TICK_TO_100NSEC;
724 }
725 info->ExitTime = 0;
726
727 status = 1;
728
729 #elif defined(__APPLE__)
730 // FIXME (MCl): Make an alternative function get timing on OSX
731 // times() seems to cause a segmentation fault
732 #else // no /proc file system: assume sys_start for the first call
733 tms tmsb;
734 static clock_t sys_start = times(0);
735 static longlong offset = 100*longlong(time(0)) - sys_start;
736 clock_t now = times(&tmsb);
737 info->CreateTime = offset + now;
738 info->UserTime = tmsb.tms_utime;
739 info->KernelTime = tmsb.tms_stime;
740 info->CreateTime *= TICK_TO_100NSEC;
741 info->UserTime *= TICK_TO_100NSEC;
742 info->KernelTime *= TICK_TO_100NSEC;
743 info->ExitTime = 0;
744 status = 1;
745 #endif
746 }
747
748 return status;
749 }
System::Times
Definition: SystemBase.h:20
linux_proc
Definition: ProcessDescriptor.cpp:262
plotSpeedupsPyRoot.time
time
Definition: plotSpeedupsPyRoot.py:146
readProcStat
void readProcStat(long pid, linux_proc &pinfo)
Definition: ProcessDescriptor.cpp:305
__longlong
Definition: Kernel.h:56
HiveAlgSequencer.h
h
Definition: HiveAlgSequencer.py:24
linux_proc::starttime
unsigned long long starttime
Definition: ProcessDescriptor.cpp:284
System::ProcessTimes
Definition: ProcessDescriptor.cpp:27
longlong
__longlong longlong
Definition: Kernel.h:57
System::ProcessHandle
void * ProcessHandle
Definition of the process handle.
Definition: ModuleInfo.h:32

long System::ProcessDescriptor::query | ( | long | pid,
|  | InfoType | info,
|  | QUOTA_LIMITS * | buffer
| ) |  |

Definition at line 592 of file ProcessDescriptor.cpp.

594 {
595 if (info==0) return 0;
596 long status = 1;
597
598 if ( fetch == Quota ) {
599 #if defined(_WIN32) && WINVER>=0x0400 // Windows NT
600 ProcessHandle h(pid);
601 status = NtApi::NtQueryInformationProcess(h.handle(),
602 ProcessQuotaLimits,
603 info,
604 sizeof(QUOTA_LIMITS),
605 0);
606 status = (status==0) ? 1 : 0;
607 #elif defined(_WIN32) // Windows 95,98...
608 #elif defined(__linux) // Linux
609 // On linux all this stuff typically is not set
610 // (ie. rlim_max=RLIM_INFINITY...)
611
612 if (pid>0 && pid!=::getpid()) return 0; // only possible for myself
613
614 rlimit lim;
615 getrlimit(RLIMIT_DATA, &lim);
616 if ( lim.rlim_max == RLIM_INFINITY ) lim.rlim_max = 0xFFFFFFFF;
617 info->PagedPoolLimit = lim.rlim_max;
618
619 getrlimit(RLIMIT_STACK, &lim);
620 if ( lim.rlim_max == RLIM_INFINITY ) lim.rlim_max = 0xFFFFFFFF;
621 info->NonPagedPoolLimit = lim.rlim_max;
622 info->MinimumWorkingSetSize = 0;
623
624 getrlimit(RLIMIT_RSS, &lim);
625 if ( lim.rlim_max == RLIM_INFINITY ) lim.rlim_max = 0xFFFFFFFF;
626 info->MaximumWorkingSetSize = lim.rlim_max;
627
628 getrlimit(RLIMIT_AS, &lim);
629 if ( lim.rlim_max == RLIM_INFINITY ) lim.rlim_max = 0xFFFFFFFF;
630 info->PagefileLimit = lim.rlim_max;
631
632 getrlimit(RLIMIT_CPU, &lim);
633 if ( lim.rlim_max == RLIM_INFINITY ) lim.rlim_max = 0xFFFFFFFF;
634 info->TimeLimit = lim.rlim_max;
635 #elif defined(__APPLE__)
636 #else // All Other
637 #endif // End ALL OS
638 }
639 return status;
640 }
HiveAlgSequencer.h
h
Definition: HiveAlgSequencer.py:24
System::ProcessQuotaLimits
Definition: ProcessDescriptor.cpp:24
System::Quota
Definition: SystemBase.h:24
System::ProcessHandle
void * ProcessHandle
Definition of the process handle.
Definition: ModuleInfo.h:32

long System::ProcessDescriptor::query | ( | long | pid,
|  | InfoType | info,
|  | VM_COUNTERS * | buffer
| ) |  |

Definition at line 543 of file ProcessDescriptor.cpp.

545 {
546 if (info==0) return 0;
547 long status = 1;
548
549 if ( fetch == Memory ) {
550 #if defined(_WIN32) && WINVER>=0x0400 // Windows NT
551 ProcessHandle h(pid);
552 status = NtApi::NtQueryInformationProcess(h.handle(),
553 ProcessVmCounters,
554 info,
555 sizeof(VM_COUNTERS),
556 0);
557 status = (status==0) ? 1 : 0;
558 #elif defined(_WIN32) // Windows 95,98...
559 #elif defined(__linux) // Linux
560 const ssize_t bufsize = 1024;
561 char buf[bufsize];
562 pid = processID(pid);
563 sprintf(buf,"/proc/%ld/statm", pid);
564 long size, resident, share, trs, lrs, drs, dt;
565 int fd = open(buf,O_RDONLY);
566 ssize_t nread = read(fd, buf, bufsize);
567 close(fd);
568 if ( nread < bufsize && nread >= 0 )
569 buf[nread]='\0';
570 fd = sscanf(buf, "%ld %ld %ld %ld %ld %ld %ld",
571 &size, &resident, &share, &trs, &drs, &lrs, &dt);
572 linux_proc prc;
573 readProcStat( pid, prc);
574 info->PeakVirtualSize = prc.vsize;
575 info->VirtualSize = prc.vsize;
576 info->PeakWorkingSetSize = resident * pg_size;
577 info->WorkingSetSize = resident * pg_size;
578 info->QuotaPeakPagedPoolUsage = share * pg_size;
579 info->QuotaPagedPoolUsage = share * pg_size;
580 info->QuotaNonPagedPoolUsage = (trs+drs)* pg_size;// drs = data/stack size
581 info->QuotaPeakNonPagedPoolUsage = (trs+drs)* pg_size;// trs = VmExe size
582 info->PageFaultCount = prc.majflt + prc.minflt;
583 info->PagefileUsage = prc.vsize-resident*pg_size;
584 info->PeakPagefileUsage = prc.vsize-resident*pg_size;
585 #elif defined(__APPLE__)
586 #else // All Other
587 #endif // End ALL OS
588 }
589 return status;
590 }
linux_proc::minflt
unsigned long minflt
Definition: ProcessDescriptor.cpp:272
System::Memory
Definition: SystemBase.h:23
gaudirun.fd
fd
Definition: gaudirun.py:459
std::sscanf
T sscanf(T...args)
linux_proc
Definition: ProcessDescriptor.cpp:262
hivetimeline.read
def read(f, regex='.*', skipevents=0)
Definition: hivetimeline.py:19
readProcStat
void readProcStat(long pid, linux_proc &pinfo)
Definition: ProcessDescriptor.cpp:305
HiveAlgSequencer.h
h
Definition: HiveAlgSequencer.py:24
linux_proc::vsize
unsigned long vsize
Definition: ProcessDescriptor.cpp:285
linux_proc::majflt
unsigned long majflt
Definition: ProcessDescriptor.cpp:274
std::sprintf
T sprintf(T...args)
System::ProcessHandle
void * ProcessHandle
Definition of the process handle.
Definition: ModuleInfo.h:32
System::ProcessVmCounters
Definition: ProcessDescriptor.cpp:26

long System::ProcessDescriptor::query | ( | long | pid,
|  | InfoType | info,
|  | IO_COUNTERS * | buffer
| ) |  |

Definition at line 433 of file ProcessDescriptor.cpp.

435 {
436 if (info==0) return 0;
437 long status = 1;
438
439 if ( fetch == IO ) {
440 #if defined(_WIN32) && WINVER>=0x0400 // Windows NT
441 ProcessHandle h(pid);
442 status = NtApi::NtQueryInformationProcess(h.handle(),
443 ProcessIoCounters,
444 info,
445 sizeof(IO_COUNTERS),
446 0);
447 status = (status==0) ? 1 : 0;
448 #elif defined(_WIN32) // Windows 95,98...
449 #elif defined(__linux)
450 linux_proc prc;
451 readProcStat(processID(pid), prc);
452 rusage usage;
453 getrusage(RUSAGE_SELF, &usage);
454 info->ReadOperationCount = usage.ru_inblock;
455 info->WriteOperationCount = usage.ru_oublock;
456 info->OtherOperationCount = 0;
457 info->ReadTransferCount = usage.ru_inblock;
458 info->WriteTransferCount = usage.ru_oublock;
459 info->OtherTransferCount = 0;
460 #else // All Other
461 #endif // End ALL OS
462 }
463 return status;
464 }
linux_proc
Definition: ProcessDescriptor.cpp:262
usage
void usage(std::string argv0)
Definition: listcomponents.cpp:38
System::ProcessIoCounters
Definition: ProcessDescriptor.cpp:25
readProcStat
void readProcStat(long pid, linux_proc &pinfo)
Definition: ProcessDescriptor.cpp:305
HiveAlgSequencer.h
h
Definition: HiveAlgSequencer.py:24
System::IO
Definition: SystemBase.h:27
System::ProcessHandle
void * ProcessHandle
Definition of the process handle.
Definition: ModuleInfo.h:32

long System::ProcessDescriptor::query | ( | long | pid,
|  | InfoType | info,
|  | long * | buffer
| ) |  |

Definition at line 512 of file ProcessDescriptor.cpp.

512 {
513
514 if (info==0) return 0;
515 long status = 1;
516
517 switch ( fetch ) {
518 case PriorityBoost:
519 #if defined(_WIN32) && WINVER>=0x0400 // Windows NT
520 ProcessHandle h(pid);
521 status = NtApi::NtQueryInformationProcess(h.handle(),
522 ProcessPriorityBoost,
523 info,
524 sizeof(long),
525 0);
526 #elif defined(_WIN32) // Windows 95,98...
527 #else
528 // Not applicable
529 if (pid>0) status = 0; // to avoid compiler warning
530 status = 0;
531 *info = 0;
532 #endif // End ALL OS
533 status = (status==0) ? 1 : 0;
534 break;
535 default:
536 status = -1;
537 info = &status;
538 break;
539 }
540 return status;
541 }
HiveAlgSequencer.h
h
Definition: HiveAlgSequencer.py:24
System::ProcessPriorityBoost
Definition: ProcessDescriptor.cpp:45
System::PriorityBoost
Definition: SystemBase.h:22
System::ProcessHandle
void * ProcessHandle
Definition of the process handle.
Definition: ModuleInfo.h:32

The documentation for this class was generated from the following files:

- GaudiKernel/src/Lib/ProcessDescriptor.h
- GaudiKernel/src/Lib/ProcessDescriptor.cpp