| Title: | DECmcc user notes file. Does not replace IPMT. |
| Notice: | Use IPMT for problems. Newsletter location in note 6187 |
| Moderator: | TAEC::BEROUD |
| Created: | Mon Aug 21 1989 |
| Last Modified: | Wed Jun 04 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 6497 |
| Total number of notes: | 27359 |
When looking into domains , sometimes an error message window pops up with message : Unable to lock window table property A customer has seen this message a number of times and wants to know the significance of this message ? and ways to avid it . Iconic map is unlock at the time. andrew
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 5461.1 | anyone knows the answer .... | GIDDAY::CHONG | Andrew Chong - Sydney CSC | Thu Aug 12 1993 20:37 | 11 |
Re: .0
Can someone please tell me what the message means , it is not
in the messages manual .
I know everyone is very busy and I really appreciate if a few
minutes could be spared to answer this.
Andrew
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| 5461.2 | re:.0 | TOOK::LEMMON | Mon Aug 16 1993 14:04 | 21 | |
Each Iconic Map invocation stores information about itself (e.g., maps
open, severity info, etc...) in a global window table residing in the
X-server.
Access to the window table must be exclusive. If not, one thread
(in the same process or a different iconic map process) can write to
the table while another is reading it! To avoid this the iconic map
creates an X-property, the window table lock, and attempts to lock it
(via XtGetselectionOwner). It tries 25 times. If it can't lock it,
you get the error message you are seeing.
Usually there are no bad side affects it the window table isn't
updated. This entire mechanism is not public so if your customer
isn't using the pm-pm communications s/he should be ok.
Does your customer always get this error message? If so, is it
reproducable?
/Jim
p.s. please send reply to took::lemmon
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