Modified by mchinen to cleanup debug messages and fix unbalanced mutex on error.
Original patch notes:
OD loader doesn't properly continue scanning files
BUG:
* import large audio file with OD import
* save and close project before OD finishes
* open project again: OD failes badly on continuing
Syntoms:
* .auf.auf.auf worm files ...
* truncated wave display
The isse is subtile:
<odpcmaliasblockfile summaryfile="e000031a.auf" aliasfile="/home/chris/Records/test/0.5seek+cue.flac" aliasstart="26738688" aliaslen="524288" aliaschannel="1"/>
A ODPCMAliasBlockFile is a AliasBlockFile which has 3 overloaded
constructer. One of then silently adds '.aup' to the summaryfile.
So when creating those tracks from XML, we must use the other constructor.
Now we run into a second bug:
AudacityProject::OpenFile calls ProjectFSCK after reading which deletes
the just created empty directories in the _data/e00 dir. OD is doomed.
So simply skip rmdir in fsck. The OD..Blockfiles will disapper when the
OD finishes, so empty dirs will be deleted on further opening the project.
I refactored the code into AudacityApp with a new timer. This is provisional pending discussion - if it is decided that it should go somewhere else I will move it.
Make DirManager::MoveToNewProjectDirectory(), DirManager::CopyToNewProjectDirectory(), and several BuildFromXML() methods check the result of AssignFile() and do something appropriate about it on failure, rather than ignoring it. Also made AssignFile() check whether the assigned name is well-formed, so it doesn't always return TRUE when disckcheck is FALSE.
Briefer and more correct checks for uninitialized wxFileName objects.
Several "//ANSWER-ME" comments about file ops and commented-out cruft to probably remove.
Clarify some logic and readability.
better handling of error conditions in all BuildFromXML methods, per comment:
// BuildFromXML methods should always return a BlockFile, not NULL,
// even if the result is flawed (e.g., refers to nonexistent file),
// as testing will be done in DirManager::ProjectFSCK().
Basic problem was in using wxConvUTF8 instead of wxConvFile. I believe wxConvFile should work on all platforms, but if not we can "#ifdef _WIN32" its use.
Also simplified the code by getting rid of the mFileNameChar member. It was used only in ODPCMAliasBlockFile::WriteSummary() so there's no reason to do the conversion from mFileName in so many places -- just do it once, in ODPCMAliasBlockFile::WriteSummary().
