void FileConnList::postRestart()
{
/* It is possible to have two different connection-ids for a pre-existing
* CTTY in two or more different process trees. In this case, only one of the
* several process trees would be able to acquire a lock on the underlying
* fd. The send-receive fd logic fails in this case due to different
* connection-ids. Therefore, we let every process do a postRestart to
* reopen the CTTY.
*
* TODO: A better fix would be to have a unique connection-id for each
* pre-existing CTTY that is then used by all process trees. It can be
* implemented by using the SharedData area.
*/
for (iterator i = begin(); i != end(); ++i) {
Connection* con = i->second;
if (!con->hasLock() && con->conType() == Connection::PTY &&
con->isPreExistingCTTY()) {
PtyConnection *pcon = (PtyConnection*) con;
pcon->postRestart();
}
}
/* Try to map the file as is, if it already exists on the disk.
*/
for (size_t i = 0; i < unlinkedShmAreas.size(); i++) {
if (jalib::Filesystem::FileExists(unlinkedShmAreas[i].name)) {
// TODO(kapil): Verify the file contents.
JWARNING(false) (unlinkedShmAreas[i].name)
.Text("File was unlinked at ckpt but is currently present on disk; "
"remove it and try again.");
restoreShmArea(unlinkedShmAreas[i]);
} else {
missingUnlinkedShmFiles.push_back(unlinkedShmAreas[i]);
}
}
ConnectionList::postRestart();
}
void dmtcp::FileConnList::postRestart()
{
/* It is possible to have two different connection-ids for a pre-existing
* CTTY in two or more different process trees. In this case, only one of the
* several process trees would be able to acquire a lock on the underlying
* fd. The send-receive fd logic fails in this case due to different
* connection-ids. Therefore, we let every process do a postRestart to
* reopen the CTTY.
*
* TODO: A better fix would be to have a unique connection-id for each
* pre-existing CTTY that is then used by all process trees. It can be
* implemented by using the SharedData area.
*/
for (iterator i = begin(); i != end(); ++i) {
Connection* con = i->second;
if (!con->hasLock() && con->conType() == Connection::PTY &&
con->isPreExistingCTTY()) {
PtyConnection *pcon = (PtyConnection*) con;
pcon->postRestart();
}
}
ConnectionList::postRestart();
}
