APLMGR SCF Reference Manual

PTrace Reference for Tandem FTAM

OSI/FTAM and OSI/APLMGR SCF Reference Manual—421943-001

5-32

DSM Decode SPI Request

The following trace record is generated immediately after a Subsystem Programmatic

Interface (SPI) request is decoded.

State

is an internally defined integer that represents the current step in the SPI-request

decoding sequence. Possible states include

SPI Error

is the SPI error number returned as the status value from a SPI procedure the

initiator or responder process called while decoding the SPI request. See the

Distributed Systems Management (DSM) Programming Manual for possible SPI

error codes.

FS Error

is the file-system error code returned in the file-system reply. The following table

lists the possible error codes:

09/23/93 10:30:50.466579 >000.000000 #1 Decode SPI Req

State: 9 SPI Error: 0 FS Error: 0

State SPI-Request Decoding Sequence

1 Setup data (allocate internal control blocks)

2 Validate SPI buffer parameters

3 Extract SPI header tokens

4 Initialize SPI reply

5 Validate SPI command/object-type pair

6 Validate SPI buffer tokens

7 Check for required SPI buffer tokens

8 Process SPI command

9 Process file-system reply

10 Exit state

Error Code Meaning

0 No error

2 Operation not allowed on this file

31 Unable to obtain file-system buffer space

34 Unable to obtain file-system control block