public static unsafe string GetWritePointer(BinaryStream bs)
{
return("GetWritePointer\t" +
StepTimer.Time(10, () =>
{
bs.GetWritePointer(40 * 1000000, 1);
bs.GetWritePointer(80 * 1000000, 1);
bs.GetWritePointer(120 * 1000000, 1);
bs.GetWritePointer(50 * 1000000, 1);
bs.GetWritePointer(90 * 1000000, 1);
bs.GetWritePointer(130 * 1000000, 1);
bs.GetWritePointer(60 * 1000000, 1);
bs.GetWritePointer(100 * 1000000, 1);
bs.GetWritePointer(140 * 1000000, 1);
bs.GetWritePointer(110 * 1000000, 1);
}));
}
public void Benchmark(uint page, string text)
{
Stopwatch sw = new Stopwatch();
IndexMapper map = new IndexMapper((int)BlockSize);
System.Console.WriteLine(text +
StepTimer.Time(10, () =>
{
map.MapPosition(page);
map.MapPosition(page);
map.MapPosition(page);
map.MapPosition(page);
map.MapPosition(page);
map.MapPosition(page);
map.MapPosition(page);
map.MapPosition(page);
map.MapPosition(page);
map.MapPosition(page);
}));
}
public void Test1()
{
MemoryPoolTest.TestMemoryLeak();
MemoryPoolFile file = new MemoryPoolFile(Globals.MemoryPool);
BinaryStreamIoSessionBase session = file.CreateIoSession();
BlockArguments blockArguments = new BlockArguments();
blockArguments.IsWriting = true;
blockArguments.Position = 10000000;
session.GetBlock(blockArguments);
System.Console.WriteLine("Get Block\t" + StepTimer.Time(10, () =>
{
blockArguments.Position = 100000;
session.GetBlock(blockArguments);
blockArguments.Position = 200000;
session.GetBlock(blockArguments);
blockArguments.Position = 300000;
session.GetBlock(blockArguments);
blockArguments.Position = 400000;
session.GetBlock(blockArguments);
blockArguments.Position = 500000;
session.GetBlock(blockArguments);
blockArguments.Position = 600000;
session.GetBlock(blockArguments);
blockArguments.Position = 700000;
session.GetBlock(blockArguments);
blockArguments.Position = 800000;
session.GetBlock(blockArguments);
blockArguments.Position = 900000;
session.GetBlock(blockArguments);
blockArguments.Position = 1000000;
session.GetBlock(blockArguments);
}));
file.Dispose();
MemoryPoolTest.TestMemoryLeak();
}
internal static void TestSpeed <TKey, TValue>(SortedTreeNodeBase <TKey, TValue> nodeInitializer, TreeNodeRandomizerBase <TKey, TValue> randomizer, int count, int pageSize)
where TKey : SnapTypeBase <TKey>, new()
where TValue : SnapTypeBase <TValue>, new()
{
int Max = count;
uint nextKeyIndex = 2;
Func <uint> getNextKey = () =>
{
nextKeyIndex++;
return(nextKeyIndex - 1);
};
using (BinaryStream bs = new BinaryStream())
{
randomizer.Reset(Max);
for (int x = 0; x < Max; x++)
{
randomizer.Next();
}
TKey key = new TKey();
TValue value = new TValue();
SortedTreeNodeBase <TKey, TValue> node = null;
System.Console.WriteLine(StepTimer.Time(count, (sw) =>
{
nextKeyIndex = 2;
node = nodeInitializer.Clone(0);
SparseIndex <TKey> sparse = new SparseIndex <TKey>();
sparse.Initialize(bs, pageSize, getNextKey, 0, 1);
node.Initialize(bs, pageSize, getNextKey, sparse);
node.CreateEmptyNode(1);
sw.Start();
for (int x = 0; x < Max; x++)
{
//Add the next point
randomizer.GetRandom(x, key, value);
if (!node.TryInsert(key, value))
{
throw new Exception();
}
}
sw.Stop();
}));
System.Console.WriteLine(StepTimer.Time(count, () =>
{
for (int x = 0; x < Max; x++)
{
//Add the next point
randomizer.GetRandom(x, key, value);
if (!node.TryGet(key, value))
{
throw new Exception();
}
}
}));
System.Console.WriteLine(StepTimer.Time(count, () =>
{
SortedTreeScannerBase <TKey, TValue> scanner = node.CreateTreeScanner();
scanner.SeekToStart();
while (scanner.Read(key, value))
{
;
}
}));
node = node;
}
}
public (bool result, ChangesDetected changes) CheckForChanges(MusicDb db)
{
ChangesDetected changesDetected = ChangesDetected.None;
bool result = false;
var st = new StepTimer();
st.Start();
var currentMusicFiles = GetMusicFilesFromDb(db);//.ToArray();
st.Time();
var filesOnDisk = GetFilesOnDisk();
st.Time();
bool anyFilesNotCatalogued()
{
bool r = false;
var list = currentMusicFiles.Where(x => x.Track == null);
r = list.Count() > 0;
st.Time();
if (r)
{
changesDetected = ChangesDetected.AtLeastOneFileNotCatalogued;
//log.Trace($"anyFilesNotCatalogued() returns true");
}
return(r);
}
bool anyFilesRewritten()
{
bool r = false;
var l1 = currentMusicFiles.Select(x => x.FileLastWriteTimeUtc);
var l2 = filesOnDisk.Select(x => new DateTimeOffset(x.fi.LastWriteTimeUtc, TimeSpan.Zero));
r = !l1.SequenceEqual(l2);
st.Time();
if (r)
{
changesDetected = ChangesDetected.AtLeastOneFileModifiedOnDisk;
log.Trace($"anyFilesRewritten() returns true");
}
return(r);
}
bool musicTagsAreNew()
{
bool r = false;
if (HasMusicTags())
{
var tagFile = Path.Combine(Folderpath, ITEOBase.TagFile);
var tagTime = new DateTimeOffset(new FileInfo(tagFile).LastWriteTimeUtc, TimeSpan.Zero);
r = currentMusicFiles.Any(mf => mf.LastCataloguedAt < tagTime);
}
st.Time();
if (r)
{
changesDetected = ChangesDetected.MusicTagsAreNewer;
//log.Trace($"customTagsAreNew() returns true");
}
return(r);
}
bool additionsOrDeletionsExist()
{
var differences = filesOnDisk.Select(f => f.fi.FullName).Except(currentMusicFiles.Select(mf => mf.File), StringComparer.CurrentCultureIgnoreCase);
st.Time();
var r = differences.Count() != 0;
if (r)
{
changesDetected = ChangesDetected.MusicFileCountHasChanged;
log.Debug($"music file difference count is {differences.Count()}");
}
return(r);
}
bool anyImageChanged()
{
bool r = false;
var works = currentMusicFiles.Select(mf => mf.Track).Select(x => x.Work).Distinct();
//currentMusicFiles.Select(mf => mf.Track).Where(x => x.Performance != null)
// .Select(x => x.Performance.Composition.Artist).Distinct();
var artists = works.Select(x => x.Artist)
.Union(currentMusicFiles.Select(mf => mf.Track).Where(x => x.Performance != null)
.Select(x => x.Performance.Composition.Artist))
.Distinct();
foreach (var artist in artists.Where(a => a.Type != ArtistType.Various))
{
var f = artist.GetPortraitFile(MusicOptions);
if (artist.Portrait.HasChanged(f))
{
log.Debug($"artist {artist.Name}, portrait file {f} found");
r = true;
break;
}
}
if (!r)
{
foreach (var work in works)
{
//var coverFile = MusicStyle.GetMostRecentOpusCoverFile(MusicOptions, IsCollection ? "Collections" : work.Artist.Name, currentPathData.OpusPath);
//var coverFile = MusicStyle.GetMostRecentOpusCoverFile(MusicOptions, work, currentPathData.OpusPath);
var coverFile = work.GetMostRecentOpusCoverFile(MusicOptions);
if (work.Cover.HasChanged(coverFile))
{
log.Debug($"artist {work.Artist.Name}, work {work.Name}, cover art file {coverFile}");
r = true;
break;
}
}
}
if (r)
{
changesDetected = ChangesDetected.CoverArtHasChanged;
//log.Trace($"anyImageChanged() returns true");
}
return(r);
}
if (additionsOrDeletionsExist() || musicTagsAreNew() || anyFilesRewritten() || anyFilesNotCatalogued() || anyImageChanged())
{
result = true;
}
return(result, changesDetected);
}