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);
}
}
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;
}
}
private static bool TryReadFrom(Project project, string keyName, out Versions versions)
{
versions = default(Versions);
var service = project.Solution.Workspace.Services.GetService <IPersistentStorageService>();
if (service == null)
{
return(false);
}
using (var storage = service.GetStorage(project.Solution))
using (var stream = storage.ReadStreamAsync(keyName, CancellationToken.None).WaitAndGetResult(CancellationToken.None))
{
if (stream == null)
{
return(false);
}
try
{
using (var reader = new StreamObjectReader(stream))
{
var formatVersion = reader.ReadInt32();
if (formatVersion != SerializationFormat)
{
return(false);
}
var persistedProjectVersion = VersionStamp.ReadFrom(reader);
var persistedSemanticVersion = VersionStamp.ReadFrom(reader);
versions = new Versions(persistedProjectVersion, persistedSemanticVersion);
return(true);
}
}
catch (Exception)
{
return(false);
}
}
}
private static bool TryReadFrom(Project project, string keyName, out Versions versions)
{
versions = default(Versions);
var service = project.Solution.Workspace.Services.GetService<IPersistentStorageService>();
if (service == null)
{
return false;
}
using (var storage = service.GetStorage(project.Solution))
using (var stream = storage.ReadStreamAsync(keyName, CancellationToken.None).WaitAndGetResult(CancellationToken.None))
{
if (stream == null)
{
return false;
}
try
{
using (var reader = new StreamObjectReader(stream))
{
var formatVersion = reader.ReadInt32();
if (formatVersion != SerializationFormat)
{
return false;
}
var persistedProjectVersion = VersionStamp.ReadFrom(reader);
var persistedSemanticVersion = VersionStamp.ReadFrom(reader);
versions = new Versions(persistedProjectVersion, persistedSemanticVersion);
return true;
}
}
catch (Exception)
{
return false;
}
}
}
