private IList <ValueTuple <Checksum, object> > ReadAssets(
Stream stream, int sessionId, ISet <Checksum> checksums, CancellationToken cancellationToken)
{
var results = new List <ValueTuple <Checksum, object> >();
using (var reader = new StreamObjectReader(stream))
{
var responseSessionId = reader.ReadInt32();
Contract.ThrowIfFalse(sessionId == responseSessionId);
var count = reader.ReadInt32();
Contract.ThrowIfFalse(count == checksums.Count);
for (var i = 0; i < count; i++)
{
var responseChecksum = new Checksum(reader.ReadArray <byte>());
Contract.ThrowIfFalse(checksums.Contains(responseChecksum));
var kind = reader.ReadString();
// in service hub, cancellation means simply closed stream
var @object = _owner.RoslynServices.AssetService.Deserialize <object>(kind, reader, cancellationToken);
results.Add(ValueTuple.Create(responseChecksum, @object));
}
return(results);
}
}
protected override Data TryGetExistingData(Stream stream, Document value, CancellationToken cancellationToken)
{
var list = SharedPools.Default <List <TodoItem> >().AllocateAndClear();
try
{
using (var reader = new StreamObjectReader(stream))
{
var format = reader.ReadString();
if (!string.Equals(format, FormatVersion))
{
return(null);
}
var textVersion = VersionStamp.ReadFrom(reader);
var dataVersion = VersionStamp.ReadFrom(reader);
AppendItems(reader, value, list, cancellationToken);
return(new Data(textVersion, dataVersion, list.ToImmutableArray <TodoItem>()));
}
}
catch (Exception)
{
return(null);
}
finally
{
SharedPools.Default <List <TodoItem> >().ClearAndFree(list);
}
}
private IList<ValueTuple<Checksum, object>> ReadAssets(
Stream stream, int sessionId, ISet<Checksum> checksums, CancellationToken cancellationToken)
{
var results = new List<ValueTuple<Checksum, object>>();
using (var reader = new StreamObjectReader(stream))
{
var responseSessionId = reader.ReadInt32();
Contract.ThrowIfFalse(sessionId == responseSessionId);
var count = reader.ReadInt32();
Contract.ThrowIfFalse(count == checksums.Count);
for (var i = 0; i < count; i++)
{
var responseChecksum = new Checksum(reader.ReadArray<byte>());
Contract.ThrowIfFalse(checksums.Contains(responseChecksum));
var kind = reader.ReadString();
// in service hub, cancellation means simply closed stream
var @object = _owner.RoslynServices.AssetService.Deserialize<object>(kind, reader, cancellationToken);
results.Add(ValueTuple.Create(responseChecksum, @object));
}
return results;
}
}
protected override Data TryGetExistingData(Stream stream, Document value, CancellationToken cancellationToken)
{
try
{
using (var reader = new StreamObjectReader(stream))
{
var format = reader.ReadString();
if (!string.Equals(format, FormatVersion, StringComparison.InvariantCulture))
{
return(null);
}
var textVersion = VersionStamp.ReadFrom(reader);
var dataVersion = VersionStamp.ReadFrom(reader);
var designerAttributeArgument = reader.ReadString();
return(new Data(textVersion, dataVersion, designerAttributeArgument));
}
}
catch (Exception)
{
return(null);
}
}
private bool ReadIdentifierPositions(EsentStorage.Key key, int identifierId, List <int> positions, object unused, CancellationToken cancellationToken)
{
using (var accessor = _esentStorage.GetIdentifierLocationTableAccessor())
using (var stream = accessor.GetReadStream(key, identifierId))
{
if (stream == null)
{
// no such identifier exist.
return(true);
}
using (var reader = new StreamObjectReader(stream))
{
var formatVersion = reader.ReadString();
if (formatVersion != IdentifierSetSerializationVersion)
{
return(false);
}
return(ReadFrom(reader, positions, cancellationToken));
}
}
}
private bool ReadIdentifierPositions(EsentStorage.Key key, int identifierId, List<int> positions, object unused, CancellationToken cancellationToken)
{
using (var accessor = _esentStorage.GetIdentifierLocationTableAccessor())
using (var stream = accessor.GetReadStream(key, identifierId))
{
if (stream == null)
{
// no such identifier exist.
return true;
}
using (var reader = new StreamObjectReader(stream))
{
var formatVersion = reader.ReadString();
if (formatVersion != IdentifierSetSerializationVersion)
{
return false;
}
return ReadFrom(reader, positions, cancellationToken);
}
}
}
