Initial ZMQ bindings.

vendor/ZMQ/src/config.hpp

@@ -0,0 +1,89 @@
+/*
+    Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_CONFIG_HPP_INCLUDED__
+#define __ZMQ_CONFIG_HPP_INCLUDED__
+
+namespace zmq
+{
+//  Compile-time settings.
+
+enum
+{
+    //  Number of new messages in message pipe needed to trigger new memory
+    //  allocation. Setting this parameter to 256 decreases the impact of
+    //  memory allocation by approximately 99.6%
+    message_pipe_granularity = 256,
+
+    //  Commands in pipe per allocation event.
+    command_pipe_granularity = 16,
+
+    //  Determines how often does socket poll for new commands when it
+    //  still has unprocessed messages to handle. Thus, if it is set to 100,
+    //  socket will process 100 inbound messages before doing the poll.
+    //  If there are no unprocessed messages available, poll is done
+    //  immediately. Decreasing the value trades overall latency for more
+    //  real-time behaviour (less latency peaks).
+    inbound_poll_rate = 100,
+
+    //  Maximal delta between high and low watermark.
+    max_wm_delta = 1024,
+
+    //  Maximum number of events the I/O thread can process in one go.
+    max_io_events = 256,
+
+    //  Maximal batch size of packets forwarded by a ZMQ proxy.
+    //  Increasing this value improves throughput at the expense of
+    //  latency and fairness.
+    proxy_burst_size = 1000,
+
+    //  Maximal delay to process command in API thread (in CPU ticks).
+    //  3,000,000 ticks equals to 1 - 2 milliseconds on current CPUs.
+    //  Note that delay is only applied when there is continuous stream of
+    //  messages to process. If not so, commands are processed immediately.
+    max_command_delay = 3000000,
+
+    //  Low-precision clock precision in CPU ticks. 1ms. Value of 1000000
+    //  should be OK for CPU frequencies above 1GHz. If should work
+    //  reasonably well for CPU frequencies above 500MHz. For lower CPU
+    //  frequencies you may consider lowering this value to get best
+    //  possible latencies.
+    clock_precision = 1000000,
+
+    //  On some OSes the signaler has to be emulated using a TCP
+    //  connection. In such cases following port is used.
+    //  If 0, it lets the OS choose a free port without requiring use of a
+    //  global mutex. The original implementation of a Windows signaler
+    //  socket used port 5905 instead of letting the OS choose a free port.
+    //  https://github.com/zeromq/libzmq/issues/1542
+    signaler_port = 0
+};
+}
+
+#endif