void DurableImpl::commitAndStopDurThread(OperationContext* txn) {
// This is only called by clean shutdown and the global lock must be held to ensure
// there will not be any more writes.
invariant(txn->lockState()->isW());
commitNow(txn);
shutdownRequested.store(1);
}
void DurableImpl::syncDataAndTruncateJournal(OperationContext* txn) {
invariant(txn->lockState()->isW());
// Once this returns, all the outstanding journal has been applied to the data files and
// so it's safe to do the flushAll/journalCleanup below.
commitNow(txn);
// Flush the shared view to disk.
MongoFile::flushAll(true);
// Once the shared view has been flushed, we do not need the journal files anymore.
journalCleanup(true);
// Double check post-conditions
invariant(!haveJournalFiles());
}
void DurableImpl::syncDataAndTruncateJournal(OperationContext* txn) {
invariant(txn->lockState()->isW());
// a commit from the commit thread won't begin while we are in the write lock,
// but it may already be in progress and the end of that work is done outside
// (dbMutex) locks. This line waits for that to complete if already underway.
{
SimpleMutex::scoped_lock lk(commitJob.groupCommitMutex);
}
commitNow(txn);
MongoFile::flushAll(true);
journalCleanup();
invariant(!haveJournalFiles()); // Double check post-conditions
}
