summaryrefslogtreecommitdiff
path: root/src/config.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/config.hpp')
-rw-r--r--src/config.hpp86
1 files changed, 86 insertions, 0 deletions
diff --git a/src/config.hpp b/src/config.hpp
new file mode 100644
index 0000000..2c0ac2d
--- /dev/null
+++ b/src/config.hpp
@@ -0,0 +1,86 @@
+/*
+ Copyright (c) 2007-2010 iMatix Corporation
+
+ This file is part of 0MQ.
+
+ 0MQ is free software; you can redistribute it and/or modify it under
+ the terms of the Lesser GNU 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
+ Lesser GNU General Public License for more details.
+
+ You should have received a copy of the Lesser GNU 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
+ {
+ // Maximal number of OS threads that can own 0MQ sockets
+ // at the same time.
+ max_app_threads = 512,
+
+ // 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,
+
+ // Number of signals that can be read by the signaler
+ // using a single system call.
+ signal_buffer_size = 8,
+
+ // 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 wait time for a timer (milliseconds).
+ max_timer_period = 100,
+
+ // Maximal delay to process command in API thread (in CPU ticks).
+ // 3,000,000 ticks equals to 1 - 2 milliseconds on current CPUs.
+ max_command_delay = 3000000,
+
+ // Maximal number of non-accepted connections that can be held by
+ // TCP listener object.
+ tcp_connection_backlog = 10,
+
+ // Maximum transport data unit size for PGM (TPDU).
+ pgm_max_tpdu = 1500
+ };
+
+}
+
+#endif