Chapter 3. Operating NetView FTP V2.2.1 MVS - IBM

Tracing an OSI Server
Figure 78. User-Exit Routine Interfaces (Group 8)
Trace Class Module Trace Class
4 DVGCSPP
DVGMSPCX
5 DVGCSPP
DVGMSPCX
The application program parameter list (APL) and the application
parameter list extension (APX) before or after calling the
pre-transfer or post-transfer exit routine.
The storage area defined by the pre-transfer or post-transfer
exit routine after they return control to NetView FTP V2.2.1
MVS.
Note: The module DVGCSPP establishes the interface between NetView FTP V2.2.1 MVS and
the pre-transfer and post-transfer user-exit routines. Module DVGMSPCX establishes the interface
between NetView FTP V2.2.1 MVS and the post-conversation user-exit routine. You can use the
trace facility when testing this user-exit routine. Refer to the NetView FTP Customization guide.
Figure 79. File Allocation (Group 9)
Trace Class Module Data Traced
2 DVGCSFCX The catalog parameter list and working areas before and after
invoking the LOCATE macro (supervisor call 26).
3 DVGMSDNT The text unit created for the dynamic allocation supervisor call
99.
5 DVGMSDNT The work areas for Open Volume, Close Volume, End of
Volume, and the DCB, if the MVS generalized trace facility
(GTF) is started with TRACE=USRP and USR=FFF.
Figure 80. Access Control and Data Security (Group 10)
Trace Class Module Data Traced
2 DVGMSAC The dynamic work area of the module on entry of its processing.
3 DVGMSAC The parameters of the file transfer request that apply to the
local file, containing the Access Control parameters before the
Access Control environment is established.
The parameters of the file-transfer request that apply to the
local file, containing the Access Control parameters before the
original Access Control environment is restored.
The area returned from the RACROUTE Extract function.
Classes 1 and 2 of NetView FTP V2.2.1 MVS internal traces are specific module
traces. At some trace points, NetView FTP V2.2.1 MVS produces a dump of
storage areas that have specific significance. For a list of modules and the information
that is traced, see Figure 81.
Figure 81 (Part 1 of 2). Trace Groups for OSI Server Modules
Trace
Group
Assigned Module(s) Entry or Exit Specific Module
Trace Classes 1 and 2
1 Control Module
DVGMSOCM
- G_Ind_Act_Req
L_Req_Table (L_REQTAB)
G_Ser_Str (GSS)
RCB
RXB
COS (CCI)
CCS (CCB)
Chapter 12. Taking Traces 143