C++ (Cpp) CommitOrRollback Examples

Example #1

nsresult
IDBTransaction::AbortWithCode(nsresult aAbortCode)
{
  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");

  // We can't use IsOpen here since we need it to be possible to call Abort()
  // even from outside of transaction callbacks.
  if (mReadyState != IDBTransaction::INITIAL &&
      mReadyState != IDBTransaction::LOADING) {
    return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
  }

  if (mActorChild) {
    NS_ASSERTION(!IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
    mActorChild->SendAbort(aAbortCode);
  }

  bool needToCommitOrRollback = mReadyState == IDBTransaction::INITIAL;

  mAbortCode = aAbortCode;
  mReadyState = IDBTransaction::DONE;

  if (Mode() == IDBTransaction::VERSION_CHANGE) {
    // If a version change transaction is aborted, the db must be closed
    mDatabase->Close();
  }

  // Fire the abort event if there are no outstanding requests. Otherwise the
  // abort event will be fired when all outstanding requests finish.
  if (needToCommitOrRollback) {
    return CommitOrRollback();
  }

  return NS_OK;
}

Example #2

File: IDBTransaction.cpp Project: lofter2011/Icefox

void
IDBTransaction::OnRequestFinished()
{
    NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    NS_ASSERTION(mPendingRequests, "Mismatched calls!");
    --mPendingRequests;
    if (!mPendingRequests) {
        NS_ASSERTION(mAbortCode || mReadyState == IDBTransaction::LOADING,
                     "Bad state!");
        mReadyState = IDBTransaction::COMMITTING;
        CommitOrRollback();
    }
}

Example #3

File: IDBTransaction.cpp Project: lofter2011/Icefox

void
IDBTransaction::OnRequestFinished()
{
  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
  NS_ASSERTION(mPendingRequests, "Mismatched calls!");
  --mPendingRequests;
  if (!mPendingRequests) {
    if (!mAborted) {
      NS_ASSERTION(mReadyState == nsIIDBTransaction::LOADING, "Bad state!");
    }
    mReadyState = nsIIDBTransaction::DONE;

    CommitOrRollback();
  }
}

Example #4

File: IDBTransaction.cpp Project: lofter2011/Icefox

nsresult
IDBTransaction::AbortInternal(nsresult aAbortCode,
                              already_AddRefed<nsIDOMDOMError> aError)
{
    NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");

    nsCOMPtr<nsIDOMDOMError> error = aError;

    if (IsFinished()) {
        return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
    }

    if (mActorChild) {
        NS_ASSERTION(!IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
        mActorChild->SendAbort(aAbortCode);
    }

    bool needToCommitOrRollback = mReadyState == IDBTransaction::INITIAL;

    mAbortCode = aAbortCode;
    mReadyState = IDBTransaction::DONE;
    mError = error.forget();

    if (GetMode() == IDBTransaction::VERSION_CHANGE) {
        // If a version change transaction is aborted, we must revert the world
        // back to its previous state.
        mDatabase->RevertToPreviousState();

        DatabaseInfo* dbInfo = mDatabase->Info();

        for (PRUint32 i = 0; i < mCreatedObjectStores.Length(); i++) {
            nsRefPtr<IDBObjectStore>& objectStore = mCreatedObjectStores[i];
            ObjectStoreInfo* info = dbInfo->GetObjectStore(objectStore->Name());

            if (!info) {
                info = new ObjectStoreInfo(*objectStore->Info());
                info->indexes.Clear();
            }

            objectStore->SetInfo(info);
        }

        for (PRUint32 i = 0; i < mDeletedObjectStores.Length(); i++) {
            nsRefPtr<IDBObjectStore>& objectStore = mDeletedObjectStores[i];
            ObjectStoreInfo* info = dbInfo->GetObjectStore(objectStore->Name());

            if (!info) {
                info = new ObjectStoreInfo(*objectStore->Info());
                info->indexes.Clear();
            }

            objectStore->SetInfo(info);
        }

        // and then the db must be closed
        mDatabase->Close();
    }

    // Fire the abort event if there are no outstanding requests. Otherwise the
    // abort event will be fired when all outstanding requests finish.
    if (needToCommitOrRollback) {
        return CommitOrRollback();
    }

    return NS_OK;
}