End Transaction (20)
The End Transaction operation (B_END_TRAN) completes a transaction and makes the appropriate changes to the data files. It also unlocks all files and records locked by the transaction.
Parameters
Op Code
Pos Block
Data Buf
Data Buf Len
Key Buffer
Key Number
Sent
Returned
Prerequisites
Before issuing an End Transaction operation, your application must issue a successful Begin Transaction operation (19 or 1019).
Procedure
Set the Operation Code to 20. While the transactional interface ignores all other parameters on an End Transaction call, you should initialize them to 0 to ensure compatibility with future releases.
Result
If the End Transaction operation is successful, all the operations within the transaction are recorded in your file. Your application cannot abort a transaction after an End Transaction operation.
If the End Transaction operation is unsuccessful, the transactional interface returns the following status code:
38
The transactional interface encountered a transaction control file I/O error.
Positioning
The End Transaction operation has no effect on any file currency information.
