TimingMarks query

The TimingMarks query shows the number of TELNET TIMING MARK negotiations that have been received from the host.

TIMING MARK is used by some hosts as a keepalive mechanism.

It is also useful for emulator unit testing, to synchronize data sent from the host to the emulator. E.g., a particular set of records is sent to the emulator for testing, followed by a TIMING MARK. The test can assume that when the emulator increments the result of Query(TimingMark), it has processed those records.

Return value
The return value is an integer.

Example
x3270> Query(TimingMarks) 2

Version history
Added to x3270 4.2 in 2021.