public static async Task <bool> InitiateUpgradeAsync(StreamUpgradeInitiator upgradeInitiator, OutWrapper <IConnection> connectionWrapper,
ClientFramingDecoder decoder, IDefaultCommunicationTimeouts defaultTimeouts, TimeSpan timeout)
{
IConnection connection = connectionWrapper.Value;
string upgradeContentType = upgradeInitiator.GetNextUpgrade();
while (upgradeContentType != null)
{
EncodedUpgrade encodedUpgrade = new EncodedUpgrade(upgradeContentType);
// write upgrade request framing for synchronization
await connection.WriteAsync(encodedUpgrade.EncodedBytes, 0, encodedUpgrade.EncodedBytes.Length, true, timeout);
byte[] buffer = new byte[1];
// read upgrade response framing
int size = await connection.ReadAsync(buffer, 0, buffer.Length, timeout);
if (!ValidateUpgradeResponse(buffer, size, decoder)) // we have a problem
{
return(false);
}
// initiate wire upgrade
ConnectionStream connectionStream = new ConnectionStream(connection, defaultTimeouts);
Stream upgradedStream = await upgradeInitiator.InitiateUpgradeAsync(connectionStream);
// and re-wrap connection
connection = new StreamConnection(upgradedStream, connectionStream);
connectionWrapper.Value = connection;
upgradeContentType = upgradeInitiator.GetNextUpgrade();
}
return(true);
}
public static bool InitiateUpgrade(StreamUpgradeInitiator upgradeInitiator, ref IConnection connection,
ClientFramingDecoder decoder, IDefaultCommunicationTimeouts defaultTimeouts, ref TimeoutHelper timeoutHelper)
{
string upgradeContentType = upgradeInitiator.GetNextUpgrade();
while (upgradeContentType != null)
{
EncodedUpgrade encodedUpgrade = new EncodedUpgrade(upgradeContentType);
// write upgrade request framing for synchronization
connection.Write(encodedUpgrade.EncodedBytes, 0, encodedUpgrade.EncodedBytes.Length, true, timeoutHelper.RemainingTime());
byte[] buffer = new byte[1];
// read upgrade response framing
int size = connection.Read(buffer, 0, buffer.Length, timeoutHelper.RemainingTime());
if (!ValidateUpgradeResponse(buffer, size, decoder)) // we have a problem
{
return(false);
}
// initiate wire upgrade
ConnectionStream connectionStream = new ConnectionStream(connection, defaultTimeouts);
Stream upgradedStream = upgradeInitiator.InitiateUpgrade(connectionStream);
// and re-wrap connection
connection = new StreamConnection(upgradedStream, connectionStream);
upgradeContentType = upgradeInitiator.GetNextUpgrade();
}
return(true);
}
private bool Begin()
{
for (string str = this.upgradeInitiator.GetNextUpgrade(); str != null; str = this.upgradeInitiator.GetNextUpgrade())
{
EncodedUpgrade upgrade = new EncodedUpgrade(str);
IAsyncResult result = this.connection.BeginWrite(upgrade.EncodedBytes, 0, upgrade.EncodedBytes.Length, true, this.timeoutHelper.RemainingTime(), onWriteUpgradeBytes, this);
if (!result.CompletedSynchronously)
{
return(false);
}
if (!this.CompleteWriteUpgradeBytes(result))
{
return(false);
}
}
return(true);
}
public static bool InitiateUpgrade(StreamUpgradeInitiator upgradeInitiator, ref IConnection connection, ClientFramingDecoder decoder, IDefaultCommunicationTimeouts defaultTimeouts, ref TimeoutHelper timeoutHelper)
{
for (string str = upgradeInitiator.GetNextUpgrade(); str != null; str = upgradeInitiator.GetNextUpgrade())
{
EncodedUpgrade upgrade = new EncodedUpgrade(str);
connection.Write(upgrade.EncodedBytes, 0, upgrade.EncodedBytes.Length, true, timeoutHelper.RemainingTime());
byte[] buffer = new byte[1];
int count = connection.Read(buffer, 0, buffer.Length, timeoutHelper.RemainingTime());
if (!ValidateUpgradeResponse(buffer, count, decoder))
{
return(false);
}
ConnectionStream stream = new ConnectionStream(connection, defaultTimeouts);
Stream stream2 = upgradeInitiator.InitiateUpgrade(stream);
connection = new StreamConnection(stream2, stream);
}
return(true);
}
public static bool InitiateUpgrade(StreamUpgradeInitiator upgradeInitiator, ref IConnection connection, ClientFramingDecoder decoder, IDefaultCommunicationTimeouts defaultTimeouts, ref TimeoutHelper timeoutHelper)
{
for (string str = upgradeInitiator.GetNextUpgrade(); str != null; str = upgradeInitiator.GetNextUpgrade())
{
EncodedUpgrade upgrade = new EncodedUpgrade(str);
connection.Write(upgrade.EncodedBytes, 0, upgrade.EncodedBytes.Length, true, timeoutHelper.RemainingTime());
byte[] buffer = new byte[1];
int count = connection.Read(buffer, 0, buffer.Length, timeoutHelper.RemainingTime());
if (!ValidateUpgradeResponse(buffer, count, decoder))
{
return false;
}
ConnectionStream stream = new ConnectionStream(connection, defaultTimeouts);
Stream stream2 = upgradeInitiator.InitiateUpgrade(stream);
connection = new StreamConnection(stream2, stream);
}
return true;
}
private bool Begin()
{
for (string str = this.upgradeInitiator.GetNextUpgrade(); str != null; str = this.upgradeInitiator.GetNextUpgrade())
{
EncodedUpgrade upgrade = new EncodedUpgrade(str);
IAsyncResult result = this.connection.BeginWrite(upgrade.EncodedBytes, 0, upgrade.EncodedBytes.Length, true, this.timeoutHelper.RemainingTime(), onWriteUpgradeBytes, this);
if (!result.CompletedSynchronously)
{
return false;
}
if (!this.CompleteWriteUpgradeBytes(result))
{
return false;
}
}
return true;
}
