void createProcess(bool createIndependentRootProcesses = false)
{
//change UniquePid
UniquePid::resetOnFork(upid());
dmtcp::Util::initializeLogFile(_pInfo.procname());
JTRACE("Creating process during restart") (upid()) (_pInfo.procname());
RestoreTargetMap::iterator it;
for (it = targets.begin(); it != targets.end(); it++) {
RestoreTarget *t = it->second;
if (_pInfo.upid() == t->_pInfo.upid()) {
continue;
} else if (_pInfo.isChild(t->upid()) &&
t->_pInfo.sid() != _pInfo.pid()) {
t->createDependentProcess(true);
}
}
if (createIndependentRootProcesses) {
RestoreTargetMap::iterator it;
for (it = independentProcessTreeRoots.begin();
it != independentProcessTreeRoots.end();
it++) {
RestoreTarget *t = it->second;
if (t != this) {
t->createDependentProcess(false);
}
}
}
// If we were the session leader, become one now.
if (_pInfo.sid() == _pInfo.pid()) {
if (getsid(0) != _pInfo.pid()) {
JWARNING(setsid() != -1) (getsid(0)) (JASSERT_ERRNO)
.Text("Failed to restore this process as session leader.");
}
}
// Now recreate processes with sid == _pid
for (it = targets.begin(); it != targets.end(); it++) {
RestoreTarget *t = it->second;
if (_pInfo.upid() == t->_pInfo.upid()) {
continue;
} else if (t->_pInfo.sid() == _pInfo.pid()) {
t->createDependentProcess(_pInfo.isChild(t->upid()));
}
}
// Now close all open fds except _fd;
for (it = targets.begin(); it != targets.end(); it++) {
RestoreTarget *t = it->second;
if (t != this) {
close(t->fd());
}
}
// Create the ckpt-dir fd so that the restarted process can know about
// the abs-path of ckpt-image.
dmtcp::string deviceName = jalib::Filesystem::GetDeviceName(_fd);
dmtcp::string dirName = jalib::Filesystem::DirName(deviceName);
int dirfd = open(dirName.c_str(), O_RDONLY);
JASSERT(dirfd != -1) (JASSERT_ERRNO);
if (dirfd != PROTECTED_CKPT_DIR_FD) {
JASSERT(dup2(dirfd, PROTECTED_CKPT_DIR_FD) == PROTECTED_CKPT_DIR_FD);
close(dirfd);
}
dmtcp::CoordinatorAPI coordinatorAPI;
coordinatorAPI.connectToCoordinator();
dmtcp::Util::runMtcpRestore(_path.c_str(), _fd, _extDecompPid,
_pInfo.argvSize(), _pInfo.envSize());
JASSERT ( false ).Text ( "unreachable" );
}
