C++ (Cpp) refreshChildTable示例

示例#1

文件： processinfo.cpp 项目： ningke/dmtcp

void dmtcp::ProcessInfo::refresh()
{
  _pid = getpid();
  _ppid = getppid();
  _gid = getpgid(0);
  _sid = getsid(0);

  _fgid = -1;
  dmtcp::string controllingTerm = jalib::Filesystem::GetControllingTerm();
  if (!controllingTerm.empty()) {
    int tfd = _real_open(controllingTerm.c_str(), O_RDONLY, 0);
    if (tfd >= 0) {
      _fgid = tcgetpgrp(tfd);
      _real_close(tfd);
    }
  }

  if (_ppid == 1) {
    _isRootOfProcessTree = true;
  }

  _procname = jalib::Filesystem::GetProgramName();
  _hostname = jalib::Filesystem::GetCurrentHostname();
  _upid = UniquePid::ThisProcess();
  _uppid = UniquePid::ParentProcess();
  _noCoordinator = dmtcp_no_coordinator();

  refreshChildTable();
  refreshTidVector();

  JTRACE("CHECK GROUP PID")(_gid)(_fgid)(_ppid)(_pid);
}

示例#2

文件： processinfo.cpp 项目： FredHutch/dmtcp

void dmtcp::ProcessInfo::refresh()
{
  _pid = getpid();
  _ppid = getppid();
  _gid = getpgid(0);
  _sid = getsid(0);

  _fgid = -1;
  // Try to open the controlling terminal
  int tfd = _real_open("/dev/tty", O_RDWR);
  if (tfd != -1) {
    _fgid = tcgetpgrp(tfd);
    _real_close(tfd);
  }

  if (_ppid == 1) {
    _isRootOfProcessTree = true;
    _uppid = UniquePid();
  } else {
    _uppid = UniquePid::ParentProcess();
  }

  _procname = jalib::Filesystem::GetProgramName();
  _hostname = jalib::Filesystem::GetCurrentHostname();
  _upid = UniquePid::ThisProcess();
  _noCoordinator = dmtcp_no_coordinator();

  char buf[PATH_MAX];
  JASSERT(getcwd(buf, sizeof buf) != NULL);
  _ckptCWD = buf;

  _sessionIds.clear();
  refreshChildTable();

  JTRACE("CHECK GROUP PID")(_gid)(_fgid)(_ppid)(_pid);
}