Analysis Fixes#1289
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daschuer merged 9 commits intomixxxdj:masterfrom Jun 22, 2017
uklotzde:analysis_fixes
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...even if SoundSources should limit the requested amount if needed.
This allows to conditionally create a DbConnectionPooler within a nested scope.
The initialization of the AnalysisDao with the thread-local database connection was missing. The restricted design of the analyzer API required to move the AnalysisDao from AnalyzeWaveform to AnalyzerQueue.
Contributor
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This fixes both bugs with the waveform analyses for me. Thanks. |
Contributor
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There is a new issue which is minor and not reliably reproducable. Sometimes, I see the waveform loaded from cache immediately, then it seems to be regenerated with a new analysis: |
Contributor
Author
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The implementation of AnalyzerQueue is not thread-safe. Small changes in timings between the threads might have unintended side effects. Unfortunately this is not the only piece of code in Mixxx that needs to be fixed eventually. |
daschuer
reviewed
Jun 21, 2017
| mixxx::DbConnectionPooler dbConnectionPooler; | ||
| if (m_pAnalysisDao) { | ||
| // Only create/open a new database connection for when needed | ||
| // for storing waveform analyses |
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How about:
// m_pAnalysisDao ramains null if no analyzer needs database access.
// currently only waveform analyses makes use of it.
daschuer
reviewed
Jun 21, 2017
| m_pDbConnectionPool = std::move(other.m_pDbConnectionPool); | ||
| // Move assignment should transfer ownership by invalidating | ||
| // the other instance. | ||
| DEBUG_ASSERT(!other); |
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This is hard to understand here, the drawback of operator overloads.
How about replace it by a named function like
DEBUG_ASSERT(!other.initalized());
Or just by
DEBUG_ASSERT(!other.m_pDbConnectionPool)
or just remove the Assert, because it is obvious that it works.
Be-ing
reviewed
Jun 21, 2017
| void AnalyzerQueue::execThread() { | ||
| // The thread-local database connection for waveform anylsis must not | ||
| // be closed before returning from this function. Therefore the | ||
| // DbConnectionPooler is defined at the outher function scope, |
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Typo here. Did you mean "other" or "outer"?
Member
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Thank you very much! LGTM |
This was referenced Aug 23, 2022
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Fixes the following bugs that have recently been reported:
Might also fix the following bug if it is related to missing waveform analysis:
I wasn't able to reproduce the reported behavior, which might depend on user preference settings.