Some trace settings

Uniface Underground -> Undocumented.Features.Only.

Some $trc_ settings

There exists a few $trc setting which offer you trace information into a log file.

Setting	Descripton and values
`$trc_start`	The name of the log file
`$trc_enable`
`$trc_info`	The kind of information inclosed in the log file. Can be set to one or many of this keywords: `none, all, num, pid, prg, cat, lvl, dtm,nl`
`$trc_type`	Values allowed : `startup, cached, direct`
`$trc_levels`	A value in hex (9E seems to work)
`$trc_frame`

Source Alex Leguevaques

A good combination which can be use to debug strange errors is :

$trc_type=direct
$trc_levels=9E
$trc_info=all
$trc_start=sys$login:uni_trace.log

This generate a file which looks like this :

1     1e      932645065 ( 16619 if_7204]supra.exe;16) RDB_I_DBDRV IO Path=0 entity=none
1     2e      932645065 ( 16619 if_7204]supra.exe;16) RDB_I_SELFID IO Drv. U4.1
1     3e      932645065 ( 16619 if_7204]supra.exe;16) RDB_I_DRVPAR IO Drv.param O, D 5,E,S 200,L,R,Y
1     4e      932645065 ( 16619 if_7204]supra.exe;16) RDB_I_DBRTN IO Drv. returns 0 in udrverr
1     5e      932645065 ( 16619 if_7204]supra.exe;16) RDB_I_EDBDRV LO Exit=0
1     6e      932645065 ( 16619 if_7204]supra.exe;16) RDB_I_DBDRV LO Path=0 entity=none
1     1e      932645065 ( 16619 if_7204]supra.exe;16) RDB_I_SQL    LO Starting
exec. imm. of CONNECT TO 'ATTACH ALIAS UNIF7$BASE FILENAME UNIF7$BASE DBKEY SCOPE IS ATTACH' AS 'UNIF7$BASE'