IFI functions

Monitor programs can use IFI functions to issue commands, to request trace field data, and to write data to trace fields through the instrumentation facility interface (IFI).

COMMAND
You can use COMMAND functions in monitor programs to issue commands from the instrumentation facility interface (IFI).
READA
Monitor programs can issue READA requests to request asynchronous data from the instrumentation facility interface.
READS
Monitor programs can call the READS function to request synchronous data from the instrumentation facility interface.
WRITE
Monitor programs can call the WRITE function to write data to the instrumentation facility interface.

Parent topic: Programming for the instrumentation facility interface (IFI)