public void Flush(int timeout)
{
if (timeout <= 0)
{
throw new ArgumentOutOfRangeException(
"Timeout must be greater than 0",
"timeout");
}
Channel<bool> ch = new Channel<bool>(1);
try
{
lock (mu)
{
if (isClosed())
throw new NATSConnectionClosedException();
sendPing(ch);
}
bool rv = ch.get(timeout);
if (!rv)
{
throw new NATSConnectionClosedException();
}
}
catch (Exception e)
{
removeFlushEntry(ch);
// Note, don't call saveFlushException in a finally clause
// because we don't know if the caller will handle the rethrown
// exception.
if (e is NATSTimeoutException || e is NATSConnectionClosedException)
{
saveFlushException(ch, e);
throw;
}
else
{
// wrap other system exceptions
var ex = new NATSException("Flush error.", e);
saveFlushException(ch, ex);
throw ex;
}
}
}
// processErr processes any error messages from the server and
// sets the connection's lastError.
internal void processErr(MemoryStream errorStream)
{
bool invokeDelegates = false;
Exception ex = null;
String s = System.Text.Encoding.UTF8.GetString(
errorStream.ToArray(), 0, (int)errorStream.Position);
if (IC.STALE_CONNECTION.Equals(s))
{
processOpError(new NATSStaleConnectionException());
}
else
{
ex = new NATSException(s);
lock (mu)
{
lastEx = ex;
if (status != ConnState.CONNECTING)
{
invokeDelegates = true;
}
}
close(ConnState.CLOSED, invokeDelegates);
}
}
// processErr processes any error messages from the server and
// sets the connection's lastError.
internal void processErr(MemoryStream errorStream)
{
bool invokeDelegates = false;
Exception ex = null;
string s = getNormalizedError(errorStream);
if (IC.STALE_CONNECTION.Equals(s))
{
processOpError(new NATSStaleConnectionException());
}
else if (IC.AUTH_TIMEOUT.Equals(s))
{
// Protect against a timing issue where an authoriztion error
// is handled before the connection close from the server.
// This can happen in reconnect scenarios.
processOpError(new NATSConnectionException(IC.AUTH_TIMEOUT));
}
else
{
ex = new NATSException("Error from processErr(): " + s);
lock (mu)
{
lastEx = ex;
if (status != ConnState.CONNECTING)
{
invokeDelegates = true;
}
}
close(ConnState.CLOSED, invokeDelegates);
}
}
