The NSCL production readout software. -- Run variable buffers

Run variable buffers docuement the current value of all run variables. For more on run state variables see: Creating Run variables.

Run variable buffer bodies consist of a series of null terminated strings. The strings all begin on word boundaries. If necessary the previous string is padded with blanks if necessary to ensure this.

Each string consists of the TCl command required to set the variable to its current value.

If necessary, several run variable buffers are emitted.
The value string is surrounded with quotation marks, so avoid using this character in your values.
If a variable is unset, a TCL comment line is emitted that, if uncommented would set the variable to -undefined-.
Each string is terminated with either a newline or a newline and a blank.
Run variable buffers are emitted just prior to each scaler readout.
At present there is no supported way to emit run variable buffers at a periodicity independent of scaler buffers.