New topic: Weird problem: backing up some folders causes IO Errors?
<http://forums.realsoftware.com/viewtopic.php?t=45757> Page 1 of 1 [ 1 post ] Previous topic | Next topic Author Message rebrandsoftware Post subject: Weird problem: backing up some folders causes IO Errors?Posted: Mon Oct 29, 2012 2:58 pm Joined: Wed Mar 25, 2009 4:30 pm Posts: 244 Location: Alexandria, VA, USA Hi Everyone, I have a strange problem and I'm completely stumped. I have a backup program that I'm running into problems with. Here is what happens: 1) I add my "Development" folder to be backed up. This is a folder within my home directory that contains 34 subfolders with about 4500 files in total. 2) The folder is searched, all subfolders and files within are added to a list of files to back up 3) Immediately, before copying any files to the backup location, I receive IO errors when trying to open a binary stream to copy the first file. The path is correct, the file exists, it's not open in any application. 4) Thereafter, I receive the error "Could not connect to database" if I try to call database.open It's as if suddenly I am not allowed to create any file connections, not to the files I'm trying to back up and not to the database. I thought there might be a problem with a file in one of the folders, so I tried this: 1) Individually add all the subfolders and files within the "Development" folder (avoiding the search which started at the parent folder) 2) All folders and files are recursively searched 3) The files are then copied properly 4) The connection to the database works So is there something about searching the Development folder as the top parent that is causing all these IO Errors and the inability to connect to the database? Why wouldn't the same error be caused by searching each of the children folders individually? It's exactly the same fileset. I thought that the problem might be too many open DB connections, so I went through and make sure all the recordsets and databases were closed and set to nil. It didn't make any difference. Any ideas about what could be going wrong? Below is some of the code. Thanks! -Mike redim mFileSearch(-1) redim mSearchFolders(0) mSearchFolders(0) = f for iFolders = 0 to ubound(mSearchFolders) 'search with wildcards entered by user b = NonRecursiveSearch(mSearchFolders(iFolders), cf.Include, cf.Exclude) next for j = 0 to ubound(mFileSearch) c.AddBackupFile(mFileSearch(j)) sStatus = getCaption("MSG_ADDING") + ": " + mFileSearch(j).Name + " (" + cstr(ubound(c.aFilesBackup) + 1) + ")" next Function NonRecursiveSearch(theItem as FolderItem, optional sMatch as string = "*.*", optional sExclude as string = "", optional bHidden as boolean = false) As boolean dim mItemCount, thisItem as Integer dim currentItem as FolderItem dim sFile, sExt as string dim a() as string dim b as boolean app.YieldToNextThread mRecursiveItemCount = mRecursiveItemCount + theItem.count //counts the item in the folder for thisItem = 1 to theItem.count currentItem = theItem.trueItem(thisItem) // get the next item in the folder if currentitem <> nil AND currentItem.ExistsUNC = true then //NilObjectException Check if bHidden = true or (bHidden = false and currentitem.Visible = true) then if currentItem.Directory = true then // do something with the folder 'b = RecursiveSearch(currentItem, sMatch, sExclude) // recursive call mSearchFolders.Append currentItem 'recursion was causing problems so instead I just keep an array of all the folders and search them all else // do something with the file if matchFilePattern(currentItem, sMatch, true) = true and matchFilePattern(currentItem, sExclude, false) = true then 'the file matches a search pattern entered by the user redim mFileSearch(ubound(mFileSearch) + 1) mFileSearch(ubound(mFileSearch)) = currentItem end if end if end if end if app.YieldToNextThread next return true End Function Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Page 1 of 1 [ 1 post ] -- Over 1500 classes with 29000 functions in one REALbasic plug-in collection. The Monkeybread Software Realbasic Plugin v9.3. http://www.monkeybreadsoftware.de/realbasic/plugins.shtml [email protected]
