/*
* Setup a virtual coordinator. It's part of the running process (i.e., no
* separate process is created).
*
* FIXME: This is the only place in this file where we use JSocket. May be get
* rid of it here too?
*/
void
setupVirtualCoordinator(CoordinatorInfo *coordInfo, struct in_addr *localIP)
{
string host = "";
int port;
getCoordHostAndPort(COORD_NONE, host, &port);
jalib::JSocket sock =
jalib::JServerSocket(jalib::JSockAddr::ANY, port).sockfd();
JASSERT(sock.isValid()) (port) (JASSERT_ERRNO)
.Text("Failed to create listen socket.");
Util::changeFd(sock.sockfd(), PROTECTED_COORD_FD);
JASSERT(Util::isValidFd(coordinatorSocket));
setCoordPort(sock.port());
pid_t ppid = getppid();
Util::setVirtualPidEnvVar(INITIAL_VIRTUAL_PID, ppid, ppid);
UniquePid coordId = UniquePid(INITIAL_VIRTUAL_PID,
UniquePid::ThisProcess().hostid(),
UniquePid::ThisProcess().time());
coordInfo->id = coordId.upid();
coordInfo->timeStamp = coordId.time();
coordInfo->addrLen = 0;
if (getenv(ENV_VAR_CKPT_INTR) != NULL) {
coordInfo->interval = (uint32_t)strtol(getenv(ENV_VAR_CKPT_INTR), NULL, 0);
} else {
coordInfo->interval = 0;
}
memset(&coordInfo->addr, 0, sizeof(coordInfo->addr));
memset(localIP, 0, sizeof(*localIP));
}
dmtcp::ProcessInfo::ProcessInfo()
{
char buf[PATH_MAX];
_do_lock_tbl();
_pid = -1;
_ppid = -1;
_gid = -1;
_sid = -1;
_isRootOfProcessTree = false;
_noCoordinator = false;
_childTable.clear();
_pthreadJoinId.clear();
_procSelfExe = jalib::Filesystem::ResolveSymlink("/proc/self/exe");
_uppid = UniquePid();
JASSERT(getcwd(buf, sizeof buf) != NULL);
_launchCWD = buf;
#ifdef CONFIG_M32
_elfType = Elf_32;
#else
_elfType = Elf_64;
#endif
_restoreBufLen = RESTORE_TOTAL_SIZE;
_restoreBufAddr = 0;
_do_unlock_tbl();
}
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);
}
