public void TestOneEntryTimestampReset()
{
var adorner = new LogSourcePropertyAdorner(_scheduler, _source.Object, TimeSpan.Zero);
_sourceEntries.Add(new LogEntry
{
Index = 0,
Timestamp = new DateTime(2021, 02, 20, 17, 52, 31)
});
_listeners.OnRead(_sourceEntries.Count);
_scheduler.RunOnce();
adorner.GetProperty(Core.Properties.StartTimestamp).Should().Be(new DateTime(2021, 02, 20, 17, 52, 31));
adorner.GetProperty(Core.Properties.EndTimestamp).Should().Be(new DateTime(2021, 02, 20, 17, 52, 31));
adorner.GetProperty(Core.Properties.Duration).Should().Be(TimeSpan.Zero);
var buffer = new PropertiesBufferList(Core.Properties.StartTimestamp, Core.Properties.EndTimestamp);
adorner.GetAllProperties(buffer);
buffer.GetValue(Core.Properties.StartTimestamp).Should().Be(new DateTime(2021, 02, 20, 17, 52, 31));
buffer.GetValue(Core.Properties.EndTimestamp).Should().Be(new DateTime(2021, 02, 20, 17, 52, 31));
buffer.GetValue(Core.Properties.Duration).Should().Be(TimeSpan.Zero);
_sourceEntries.Clear();
_listeners.Reset();
_scheduler.RunOnce();
adorner.GetProperty(Core.Properties.StartTimestamp).Should().BeNull();
adorner.GetProperty(Core.Properties.EndTimestamp).Should().BeNull();
adorner.GetProperty(Core.Properties.Duration).Should().BeNull();
adorner.GetAllProperties(buffer);
buffer.GetValue(Core.Properties.StartTimestamp).Should().BeNull();
buffer.GetValue(Core.Properties.EndTimestamp).Should().BeNull();
buffer.GetValue(Core.Properties.Duration).Should().BeNull();
}
private static ILogBuffer Listen(ILogSource logSource)
{
var data = new LogBufferList(logSource.Columns);
var listener = new Mock <ILogSourceListener>();
listener.Setup(x => x.OnLogFileModified(It.IsAny <ILogSource>(), It.IsAny <LogSourceModification>()))
.Callback((ILogSource file, LogSourceModification modification) =>
{
if (modification.IsReset())
{
data.Clear();
}
else if (modification.IsRemoved(out var removedSection))
{
data.RemoveRange((int)removedSection.Index, removedSection.Count);
}
else if (modification.IsAppended(out var appendedSection))
{
var destinationIndex = data.Count;
data.Resize(data.Count + appendedSection.Count);
file.GetEntries(appendedSection, data, destinationIndex);
}
});
logSource.AddListener(listener.Object, TimeSpan.Zero, 1);
return(data);
}
private void Clear()
{
lock (_syncRoot)
{
_indices.Clear();
_maxWidth = 0;
}
}
public void TestClearOneEntry()
{
var entries = new LogBufferList();
entries.Add();
entries.Count.Should().Be(1);
entries.Clear();
entries.Count.Should().Be(0);
}
public void TestClearEmpty()
{
var entries = new LogBufferList(Core.Columns.ElapsedTime);
entries.Count.Should().Be(0);
entries.Columns.Should().Equal(Core.Columns.ElapsedTime);
entries.Clear();
entries.Count.Should().Be(0);
entries.Columns.Should().Equal(Core.Columns.ElapsedTime);
}
public void TestClearMany()
{
var entries = new LogBufferList(Core.Columns.LineNumber);
entries.Add(42);
entries.Add(9001);
entries.Count.Should().Be(2);
entries.Clear();
entries.Count.Should().Be(0);
entries.AddEmpty();
entries.AddEmpty();
entries.Count.Should().Be(2);
entries[0].LineNumber.Should().Be(0);
entries[1].LineNumber.Should().Be(0);
}
public void TestCacheRemovesEntriesWhenNeeded()
{
var buffer = new PagedLogBuffer(4, 2, Core.Columns.RawContent);
buffer.ResizeTo(16);
var data = new LogBufferList(Core.Columns.Index, Core.Columns.RawContent)
{
new LogEntry {
RawContent = "A"
},
new LogEntry {
RawContent = "B"
},
new LogEntry {
RawContent = "C"
},
new LogEntry {
RawContent = "D"
},
new LogEntry {
RawContent = "E"
},
new LogEntry {
RawContent = "F"
},
new LogEntry {
RawContent = "G"
},
new LogEntry {
RawContent = "H"
},
};
buffer.TryAdd(new LogSourceSection(0, 8), data, 0);
var destination = new LogBufferArray(8, Core.Columns.Index, Core.Columns.RawContent, PageBufferedLogSource.RetrievalState);
buffer.TryGetEntries(new[] { new LogLineIndex(3) }, destination, 0).Should().BeTrue("because the data is still in the cache");
destination[0].RawContent.Should().Be("D");
data.Clear();
data.AddRange(new [] {
new LogEntry {
RawContent = "I"
},
new LogEntry {
RawContent = "J"
},
new LogEntry {
RawContent = "K"
},
new LogEntry {
RawContent = "L"
},
new LogEntry {
RawContent = "M"
},
new LogEntry {
RawContent = "N"
},
new LogEntry {
RawContent = "O"
},
new LogEntry {
RawContent = "P"
},
});
//< We deliberately add data that fills the entire cache because we don't want to verify the specific caching algorithm (i.e. which
// data get's removed), we just want to make sure that it *does* get removed once the cache grows too big.
buffer.TryAdd(new LogSourceSection(8, 8), data, 0);
buffer.TryGetEntries(new LogSourceSection(0, 8), destination, 0).Should().BeFalse("because we've added so much data than none of the previously added data may still be part of the cache");
for (int i = 0; i < destination.Count; ++i)
{
destination[i].RawContent.Should().Be(Core.Columns.RawContent.DefaultValue);
destination[i].GetValue(PageBufferedLogSource.RetrievalState).Should().Be(RetrievalState.NotCached);
}
}
public void UpdateVisibleLines()
{
_visibleTextLines.Clear();
if (_logSource == null)
{
return;
}
try
{
_visibleBufferBuffer.Clear();
_visibleBufferBuffer.Resize(_currentlyVisibleSection.Count);
if (_currentlyVisibleSection.Count > 0)
{
// We don't want to block the UI thread for very long at all so we instruct the log source to only
// fetch data from the cache, but to fetch missing data for later (from the source).
var queryOptions = new LogSourceQueryOptions(LogSourceQueryMode.FromCache | LogSourceQueryMode.FetchForLater, TimeSpan.Zero);
_logSource.GetEntries(_currentlyVisibleSection, _visibleBufferBuffer, 0, queryOptions);
// Now comes the fun part. We need to detect if we could fetch *all* the data.
// This is done by inspecting the BufferedLogSource.RetrievalState - if we encounter any NotCached value,
// then the entry is part of the source, but was not cached at the time of trying to access it.
// If that's the case, we will instruct this canvas to re-fetch the once more in a bit. This loop will terminate once the
// cache has managed to fetch the desired data which should happen some time...
if (_visibleBufferBuffer.ContainsAny(PageBufferedLogSource.RetrievalState,
RetrievalState.NotCached,
new Int32Range(offset: 0, _currentlyVisibleSection.Count)))
{
if (!_requiresFurtherUpdate)
{
Log.DebugFormat("Requires further update (at least one entry is not in cache)");
_requiresFurtherUpdate = true;
_updateStart = DateTime.Now;
}
}
else
{
if (_requiresFurtherUpdate)
{
var elapsed = DateTime.Now - _updateStart;
Log.DebugFormat("No longer requires further update (all retrieved log entries are in cache), took {0:F1}ms", elapsed.TotalMilliseconds);
_requiresFurtherUpdate = false;
}
}
for (int i = 0; i < _currentlyVisibleSection.Count; ++i)
{
var line = new TextLine(_visibleBufferBuffer[i], _hoveredIndices, _selectedIndices,
_colorByLevel, _textSettings, _textBrushes)
{
IsFocused = IsFocused,
SearchResults = _searchResults
};
_visibleTextLines.Add(line);
}
}
Action fn = VisibleLinesChanged;
fn?.Invoke();
InvalidateVisual();
}
catch (ArgumentOutOfRangeException e)
{
Log.DebugFormat("Caught exception while trying to update text: {0}", e);
}
catch (IndexOutOfRangeException e)
{
Log.DebugFormat("Caught exception while trying to update text: {0}", e);
}
}