Function fullCheckpoint

fdbserver/KeyValueStoreSQLite.actor.cpp:1882–1891

Checkpoints the database and resets the wal file back to the beginning

		// Checkpoints the database and resets the wal file back to the beginning
		void fullCheckpoint() {
			// A checkpoint cannot succeed while there is an outstanding transaction
			ASSERT(cursor == nullptr);

			resetReaders();
			conn.checkpoint(false);

			resetReaders();
			conn.checkpoint(true);
		}

		void resetReaders() {
			for (int i = 0; i < readThreads.size(); i++)