gtpn1m0f | Non-SNA Data Communications Reference |
CCP Trace Restart/Shutdown (CIJG/CIJS) segments.
This program accepts CCP Trace commands from the Line Control Editor (03-CVHD), performs extra validity checks on the parameters supplied, and processes the command. This involves activating or deactivating CCP Trace as previously described in the Functions section, or modifying the trace parameters. The process of deactivating trace involves forcing trace into in-core loop mode, and trace will continue tracing I/O activity to the PRC and RO.
CCP Trace Tape Block Post Interrupt (CIJF) Segment
If a trace core block becomes full and it is required to write it to tape, the block is attached to the Post Interrupt List for entry to this program.
03-CCPNUC
CCP Trace Recording Segment CLVQ
This copy segment is part of CCCCP1 and is always present in memory. When entered, this segment determines if this line is to be traced, and if so, records the necessary information in the appropriate trace core area before returning from the CCP hook. It is entered from the CCP hooks as previously described in the Functions section through the CCP trace linkage routine (also in segment CLVQ). Also, this routine contains constants and variable fields necessary for the operation of CCP trace.
This program receives and edits all line control commands, including CCP trace commands, and enters the appropriate message processing program. For CCP Trace commands, entry is made to (segment CIJG to activate CCP Trace, segment CIJS to deactivate it.