TMF Application Programmer's Guide (G06.26+)

File System Procedures
HP NonStop TMF Application Programmer’s Guide—522419-005
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TMF_TXBEGIN_
timeout input
INT(32)
the number of seconds that the transaction should be allowed to exist before it is
aborted due to a timeout. If the specified value is greater than the configured
AutoAbort attribute, the AutoAbort value takes precedence.
This parameter is optional. If omitted, the configured AutoAbort value is used.
trans-begin-tag output
INT(32) .EXT:ref:1
returns a value that identifies the new transaction among other transactions that
the calling process has initiated. This parameter is optional for single-threaded
requesters and process pairs, but it is required for multithreaded requesters and
process pairs.