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Perf: use manual masking on state flags to avoid boxing #1197

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merged 2 commits into from
Feb 11, 2022
Merged

Perf: use manual masking on state flags to avoid boxing #1197

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2e5bf49
use manual masking on state flags to avoid boxing
Wraith2 Jul 31, 2021
420d37b
add and use GetSnapshottedState function
Wraith2 Jan 19, 2022
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19 changes: 12 additions & 7 deletions src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParserStateObject.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1197,33 +1197,38 @@ private void SetSnapshottedState(SnapshottedStateFlags flag, bool value)
}
}

private bool GetSnapshottedState(SnapshottedStateFlags flag)
{
return (_snapshottedState & flag) == flag;
}

internal bool HasOpenResult
{
get => _snapshottedState.HasFlag(SnapshottedStateFlags.OpenResult);
get => GetSnapshottedState(SnapshottedStateFlags.OpenResult);
set => SetSnapshottedState(SnapshottedStateFlags.OpenResult, value);
}

internal bool HasPendingData
{
get => _snapshottedState.HasFlag(SnapshottedStateFlags.PendingData);
get => GetSnapshottedState(SnapshottedStateFlags.PendingData);
set => SetSnapshottedState(SnapshottedStateFlags.PendingData, value);
}

internal bool HasReceivedError
{
get => _snapshottedState.HasFlag(SnapshottedStateFlags.ErrorTokenReceived);
get => GetSnapshottedState(SnapshottedStateFlags.ErrorTokenReceived);
set => SetSnapshottedState(SnapshottedStateFlags.ErrorTokenReceived, value);
}

internal bool HasReceivedAttention
{
get => _snapshottedState.HasFlag(SnapshottedStateFlags.AttentionReceived);
get => GetSnapshottedState(SnapshottedStateFlags.AttentionReceived);
set => SetSnapshottedState(SnapshottedStateFlags.AttentionReceived, value);
}

internal bool HasReceivedColumnMetadata
{
get => _snapshottedState.HasFlag(SnapshottedStateFlags.ColMetaDataReceived);
get => GetSnapshottedState(SnapshottedStateFlags.ColMetaDataReceived);
set => SetSnapshottedState(SnapshottedStateFlags.ColMetaDataReceived, value);
}

Expand Down Expand Up @@ -4289,11 +4294,11 @@ internal void ResetSnapshotState()
_stateObj._cleanupAltMetaDataSetArray = _snapshotCleanupAltMetaDataSetArray;

// Make sure to go through the appropriate increment/decrement methods if changing the OpenResult flag
if (!_stateObj.HasOpenResult && _state.HasFlag(SnapshottedStateFlags.OpenResult))
if (!_stateObj.HasOpenResult && ((_state & SnapshottedStateFlags.OpenResult) == SnapshottedStateFlags.OpenResult))
{
_stateObj.IncrementAndObtainOpenResultCount(_stateObj._executedUnderTransaction);
}
else if (_stateObj.HasOpenResult && !_state.HasFlag(SnapshottedStateFlags.OpenResult))
else if (_stateObj.HasOpenResult && ((_state & SnapshottedStateFlags.OpenResult) != SnapshottedStateFlags.OpenResult))
{
_stateObj.DecrementOpenResultCount();
}
Expand Down