public SocketBase CreateSocket(ZmqSocketType type)
{
SocketBase s = null;
lock (slot_sync)
{
if (m_starting)
{
m_starting = false;
// Initialise the array of mailboxes. Additional three slots are for
// zmq_term thread and reaper thread.
int ios;
int mazmq;
lock (m_optSync)
{
mazmq = m_maxSockets;
ios = m_ioThreadCount;
}
m_slotCount = mazmq + ios + 2;
m_slots = new Mailbox[m_slotCount];
//alloc_Debug.Assert(slots);
// Initialise the infrastructure for zmq_term thread.
m_slots[TermTid] = term_mailbox;
// Create the reaper thread.
m_reaper = new Reaper(this, ReaperTid);
//alloc_Debug.Assert(reaper);
m_slots[ReaperTid] = m_reaper.Mailbox;
m_reaper.Start();
// Create I/O thread objects and launch them.
for (int i = 2; i != ios + 2; i++)
{
IOThread ioThread = new IOThread(this, i);
//alloc_Debug.Assert(io_thread);
m_ioThreads.Add(ioThread);
m_slots[i] = ioThread.Mailbox;
ioThread.Start();
}
// In the unused part of the slot array, create a list of empty slots.
for (int i = (int)m_slotCount - 1;
i >= (int)ios + 2; i--)
{
empty_slots.AddToBack(i);
m_slots[i] = null;
}
}
// Once zmq_term() was called, we can't create new sockets.
if (m_terminating)
{
ZError.ErrorNumber = ErrorNumber.ETERM;
return null;
}
// If max_sockets limit was reached, return error.
if (empty_slots.Count == 0)
{
ZError.ErrorNumber = ErrorNumber.EMFILE;
return null;
}
// Choose a slot for the socket.
int slot = empty_slots.RemoveFromBack();
// Generate new unique socket ID.
int sid = s_maxSocketId.IncrementAndGet();
// Create the socket and register its mailbox.
s = SocketBase.Create(type, this, slot, sid);
if (s == null)
{
empty_slots.AddToBack(slot);
return null;
}
sockets.Add(s);
m_slots[slot] = s.Mailbox;
//LOG.debug("NEW Slot [" + slot + "] " + s);
}
return s;
}
public Ctx()
{
m_tag = 0xabadcafe;
m_starting = true;
m_terminating = false;
m_reaper = null;
m_slotCount = 0;
m_slots = null;
m_maxSockets = ZMQ.ZmqMaxSocketsDflt;
m_ioThreadCount = ZMQ.ZmqIOThreadsDflt;
slot_sync = new object();
endpoints_sync = new object();
m_optSync = new object();
term_mailbox = new Mailbox("terminater");
empty_slots = new Deque<int>();
m_ioThreads = new List<IOThread>();
sockets = new List<SocketBase>();
endpoints = new Dictionary<String, Endpoint>();
}
