/// <summary>
/// Receive and return a Command from the command-pipe.
/// </summary>
/// <param name="timeout">how long to wait for a command (in milliseconds) before returning</param>
/// <param name="command"></param>
public bool TryRecv(int timeout, out Command command)
{
// Try to get the command straight away.
if (m_active)
{
if (m_commandPipe.TryRead(out command))
{
return(true);
}
// If there are no more commands available, switch into passive state.
m_active = false;
m_signaler.Recv();
}
// Wait for signal from the command sender.
if (!m_signaler.WaitEvent(timeout))
{
command = default(Command);
return(false);
}
// We've got the signal. Now we can switch into active state.
m_active = true;
// Get a command.
var ok = m_commandPipe.TryRead(out command);
Debug.Assert(ok);
return(ok);
}
/// <summary>
/// Receive and return a Command from the command-pipe.
/// </summary>
/// <param name="timeout">how long to wait for a command (in milliseconds) before returning</param>
/// <param name="command"></param>
public bool TryRecv(int timeout, out Command command)
{
// Try to get the command straight away.
if (m_active)
{
if (m_commandPipe.TryRead(out command))
{
return(true);
}
// If there are no more commands available, switch into passive state.
m_active = false;
m_signaler.Recv();
}
// Wait for signal from the command sender.
if (!m_signaler.WaitEvent(timeout))
{
command = default(Command);
return(false);
}
// We've got the signal. Now we can switch into active state.
m_active = true;
// Get a command.
var ok = m_commandPipe.TryRead(out command);
//Seems to get hung up occasionally if the ZMQ socket gets messed with
//Debug.Assert(ok);
if (!ok)
{
Console.WriteLine("Error reading a ZMQ frame.");
}
return(ok);
}
public Command Recv(int timeout)
{
Command cmd;
// Try to get the command straight away.
if (m_active)
{
m_commandPipe.Read(out cmd);
if (cmd != null)
{
return(cmd);
}
// If there are no more commands available, switch into passive state.
m_active = false;
m_signaler.Recv();
}
// Wait for signal from the command sender.
bool rc = m_signaler.WaitEvent(timeout);
if (!rc)
{
return(null);
}
// We've got the signal. Now we can switch into active state.
m_active = true;
// Get a command.
bool ok = m_commandPipe.Read(out cmd);
Debug.Assert(ok);
return(cmd);
}