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c18785ce1e
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Changed the method to synchronize the analyzer threads: We now use QSet to maintain a list of the thread id's of all threads that are still running - instead of only recording the highest thread id that has finished. This way a thread can now actually check if there still is any running thread with a lower thread id. Before thread n could only check if thread n-1 has finished yet or not. As a result we can relax the waiting now. Only threads that want to emit a file will wait for the "previous" threads to finish.
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2012-05-14 00:50:16 +02:00 |
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193488e26f
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Fix: In order to ensure the "correct" ordering, *all* threads need to wait for the previous threads to finish - not only the threads that will emit a file. If both, thread n and n+1, want to emit a file and thus n+1 has to wait for n, we additionally must allow thread n+2 to terminate before n and n+1, even if n+2 does *not* emit a file. That's because as soon as n+2 finishes, it unblocks all threads x with x < n+2, which includes n and n+1. If that happens and n+1 is still waiting for n, we effectively allow n+1 to emit its file *before* n. By blocking all threads x with x > n+1 until n+1 has finished (regardless of whether they want to emit a file or not) this problem is resolved. As long as we assume that most threads actually *do* emit a file, this commit shouldn't hurt the performance.
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2012-05-12 02:51:24 +02:00 |
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9175daae0d
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Some code refactoring regarding the QWaitCondition/QMutex in FileAnalyzer_Task.
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2012-05-09 02:54:41 +02:00 |
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814b725fe3
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Slightly improved progress indicator for file analyzer: Additional files from playlists are now taken into account earlier.
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2012-05-08 01:12:26 +02:00 |
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e13b93f51b
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Implemented progress indicator for the working banner.
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2012-05-06 04:57:00 +02:00 |
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a7a776ed82
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Implemented a method to disables update signals from the FileList model. This will significantly speed-up adding a lot files, but comes with the drawback that updates won't be visible immediately.
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2012-05-05 21:56:14 +02:00 |
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160b997c76
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Now using a QWaitCondition to synchronize the FileAnalyzer threads.
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2012-05-05 03:55:27 +02:00 |
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7d36e9d82e
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Some minor tweaks to the multi-threaded FileAnalyzer class.
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2012-05-04 16:40:02 +02:00 |
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14492b9c49
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Implemented multi-threading for file analyzer. Now multiple files can be analyzed in parallel. This should speed-up adding files quite a bit, especially when a huge number of files is added at once.
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2012-05-04 04:01:10 +02:00 |
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