The following code snippet shows a size of 10, but #do: processes those 10 items twice. Any ideas what I'm doing wrong?
m := MagmaCollection new. 1 to: 10 do: [:each | m add: each]. Transcript show: String cr, 'size: ', m size asString, String cr. m do: [:each | Transcript show: each asString, String cr].
Brian.
Hm, you definitely found a bug. Enumerating a non-persistent MagmaCollection (as opposed to a Reader) is very rare, so I'm not surprised no one noticed this.
I have now posted Magma1.0-cmm.4 on SqueakSource which fixes this bug. A quick fix, but the test cases passed.
Thank you, Brian, for pointing it out and also for providing such an easy way to reproduce it. Easily reproduced = easily fixed!
- Chris
PS - Your e-mail was rejected by the list, I had to manually approve it. I hope you will join us on the Magma list.
--- Brian Murphy-Dye brian.murphy-dye@sri.com wrote:
The following code snippet shows a size of 10, but #do: processes those 10 items twice. Any ideas what I'm doing wrong?
m := MagmaCollection new. 1 to: 10 do: [:each | m add: each]. Transcript show: String cr, 'size: ', m size asString, String cr. m do: [:each | Transcript show: each asString, String cr].
Brian.
Chris,
Thanks for the speedy response!
I have a new problem, surely due to some less-than-bight act on my part. I am using Cees' Kilauea magma-server image download, and have Magma 1.0 loaded in my working image.
I wasn't able to load Magma-seaside-mmb.2.mcz, so I'm creating the session on my own in the #initialize method of the top component, beginning a transaction right off the bat, and doing a 'session commit; begin' when the user clicks 'Save'. So I'm always in an open transaction -- the last of which never gets closed. I'm sure this isn't the right way to do this, but couldn't think of a better way. I've added data to the repository using this method all day, but still guess this may have something to do with my problem. Just before things went south, I had been breaking, er, modifying my Seaside components, and had started quite a few new sessions.
Now upon startup, the server produces an 'Error: a primitive has failed' error while (I think) reading a MaHashIndexRecord. Looking at http://localhost:21000/, all the repositories are shutting down. I've tried abandoning, and doing 'MagmaSession cleanUp', and then saving as a new version, but get an error (in MagmaCollectionManager>>collectionOid, respository session is nil).
Any ideas on getting going again? I really only have one repository I care about, and don't need the MagmaCollection, as I can recreate it from the other data in the repository.
Brian.
P.S. I had joined the mailing list, but sent from the wrong account (not the first time I've made that mistake :)
On Feb 23, 2006, at 11:45 PM, Chris Muller wrote:
Hm, you definitely found a bug. Enumerating a non-persistent MagmaCollection (as opposed to a Reader) is very rare, so I'm not surprised no one noticed this.
I have now posted Magma1.0-cmm.4 on SqueakSource which fixes this bug. A quick fix, but the test cases passed.
Thank you, Brian, for pointing it out and also for providing such an easy way to reproduce it. Easily reproduced = easily fixed!
- Chris
PS - Your e-mail was rejected by the list, I had to manually approve it. I hope you will join us on the Magma list.
--- Brian Murphy-Dye brian.murphy-dye@sri.com wrote:
The following code snippet shows a size of 10, but #do: processes those 10 items twice. Any ideas what I'm doing wrong?
m := MagmaCollection new. 1 to: 10 do: [:each | m add: each]. Transcript show: String cr, 'size: ', m size asString, String cr. m do: [:each | Transcript show: each asString, String cr].
Brian.
I wasn't able to load Magma-seaside-mmb.2.mcz, so I'm creating the session on my own in the #initialize method of the top component, beginning a transaction right off the bat, and doing a 'session commit; begin' when the user clicks 'Save'. So I'm always in an open transaction -- the last of which never gets closed.
Use commitAndBegin, a bit faster because it does the commit and gives you a new transaction in a single call to the server.
Now upon startup, the server produces an 'Error: a primitive has failed' error while (I think) reading a MaHashIndexRecord. Looking at http://localhost:21000/, all the repositories are shutting down. I've tried abandoning, and doing 'MagmaSession cleanUp', and then saving as a new version, but get an error (in MagmaCollectionManager>>collectionOid, respository session is nil).
Any ideas on getting going again? I really only have one repository I care about, and don't need the MagmaCollection, as I can recreate it from the other data in the repository.
Were you doing a local or remote repository? It sounds like the underlying files are closed but the repository is still trying to access them. The image shutDown/startUp code closes/opens the repository, disconnects/reconnects all sessions, so something got out of sync.
Try
MagmaSession initialize. MagmaRepositoryController initialize.
and should clear out Magma's startUp/shutDown lists that should then allow saving of the image. You should be able to reopen them and continue working.
Beyond that, a stack trace would be most helpful.
- Chris
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Brian Murphy-Dye -
Brian Murphy-Dye -
Chris Muller