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);
}
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);
}