GDSX Manual

Design and Development
Extended General Device Support (GDSX) Manual–134303
2-47
Descriptions of Configuration Parameters
Or, to turn on the trace facility (give bit 11 of DEBUGFLAGS a value of 16), enter
the following command at a TACL prompt:
> PARAM DEBUGFLAGS 16
To turn on the trace facility (give bit 11 of DEBUGFLAGS a value of 16) and also
pool checking (give bit 14 of DEBUGFLAGS a value of 2), set DEBUGFLAGS
equal to 18 (16 + 2):
> PARAM DEBUGFLAGS 18
3. Use an SPI management application program to change parameter values. This
method can be used only with dynamic parameters.
4. Use SCF to change parameter values. This method can be used only with dynamic
parameters.
For example, to turn off the trace facility, enter the following SCF command:
-> TRACE PROCESS $GDSX, STOP
5. After the GDSX process has been initialized, change parameter values within
USCODE. This method can be used only with dynamic parameters.
For example, within the DEVICE^HANDLER you can assign:
auto^restart^delay^time := 6000;
Or, to turn off the trace facility, assign the following within USCODE:
auto^trace^flag := 0;
Methods 1 and 2 can be used to set either dynamic or static parameters, while methods 3
through 5 can be used only with dynamic parameters (SCF and SPI interfaces are
established only after all parameters have been initialized).
Method 2 will override settings made using method 1. Methods 3, 4, and 5 are of equal
priority and all will override settings made with methods 1 and 2.
Descriptions of Configuration Parameters
Following are descriptions of all the static and dynamic configuration parameters. The
parameters appear in alphabetical order by external parameter name (see the first column
of Tables 2-2 and 2-3).
ASSOCIATIVE
This dynamic parameter indicates whether all preconfigured DEVICE^HANDLER tasks
are to be associative or not. If DEVICE^HANDLER tasks are associative, multiple
opens from external processes for a given file name are allowed by TSCODE and cause
the assignment of exactly one DCB and one TCB, and the creation of only one
Caution. The PARAM DEBUGFLAGS command also turns off all the other flags in the bit-
encoded DEBUGFLAGS configuration parameter. See "DEBUGFLAGS" on page 2-51.