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Diffstat (limited to 'src/config.hpp')
-rw-r--r-- | src/config.hpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/config.hpp b/src/config.hpp new file mode 100644 index 0000000..a0569ea --- /dev/null +++ b/src/config.hpp @@ -0,0 +1,71 @@ +/* + Copyright (c) 2007-2009 FastMQ Inc. + + 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 __ZS_CONFIG_HPP_INCLUDED__ +#define __ZS_CONFIG_HPP_INCLUDED__ + +namespace zs +{ + + // 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, + + // Number of new commands in command pipe needed to trigger new memory + // allocation. The number should be kept low to decrease the memory + // footprint of dispatcher. + command_pipe_granularity = 4, + + // 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, + + // 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 + + }; + +} + +#endif |