Need help with Berkeley DB transactions

Looking for a Berkely DB expert, need help to implement transactions using **Berkeley DB C API**. Need to **review/fix existing code**, very basic functionality, single-threaded, **source is less than a hundred lines**. Very little work for someone who knows the subject well. Functionality - goes through the list of key/value records, compares them to the ones in database, if the record is new/changed it updates the database. Updates should be done as a transaction - all or none. ## Deliverables 1) Existing code review, explanation why it's not working as intended. 2) Working source code for the required functionality. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform OS - Debian Linux. Compiler - GCC.