This section gives the syntax and other information of the following functions which are used for OpenTP1-specific transaction control:

• dc_trn_begin - Start a transaction
• dc_trn_chained_commit - Enable commitment in chained mode
• dc_trn_chained_rollback - Enable rollback in chained mode
• dc_trn_info - Report the information about the current transaction
• dc_trn_unchained_commit - Enable commitment in unchained mode
• dc_trn_unchained_rollback - Enable rollback in unchained mode

The functions for transaction control (dc_trn_~) can be used in UAPs of both TP1/Server Base and TP1/LiNK.