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+/*
+    Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ 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 batching size for engines with receiving functionality.
+        //  So, if there are 10 messages that fit into the batch size, all of
+        //  them may be read by a single 'recv' system call, thus avoiding
+        //  unnecessary network stack traversals.
+        in_batch_size = 8192,
+
+        //  Maximal batching size for engines with sending functionality.
+        //  So, if there are 10 messages that fit into the batch size, all of
+        //  them may be written by a single 'send' system call, thus avoiding
+        //  unnecessary network stack traversals.
+        out_batch_size = 8192,
+
+        //  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 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,
+
+        //  Maximum transport data unit size for PGM (TPDU).
+        pgm_max_tpdu = 1500,
+
+        //  On some OSes the signaler has to be emulated using a TCP
+        //  connection. In such cases following port is used.
+        signaler_port = 5905
+    };
+
+}
+
+#endif