prosody
0107ed6744aa
net/server.lua

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net/server.lua @ 10853:0107ed6744aa

net.server: Switch to epoll backend by default (if util.poll is found)
author Matthew Wild <mwild1@gmail.com>
date Mon, 01 Jun 2020 13:43:35 +0100
parent 9215:b087b5047f86
child 11762:54530085dffe
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 if not (prosody and prosody.config_loaded) then
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10 -- This module only supports loading inside Prosody, outside Prosody
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11 -- you should directly require net.server_select or server_event, etc.
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12 error(debug.traceback("Loading outside Prosody or Prosody not yet initialized"), 0);
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13 end
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14
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15 local log = require "util.logger".init("net.server");
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16
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17 local have_util_poll = pcall(require, "util.poll");
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18 local default_backend = have_util_poll and "epoll" or "select";
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19
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20 local server_type = require "core.configmanager".get("*", "network_backend") or default_backend;
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21
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22 if require "core.configmanager".get("*", "use_libevent") then
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23 server_type = "event";
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24 end
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25
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26 if server_type == "event" then
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27 if not pcall(require, "luaevent.core") then
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28 log("error", "libevent not found, falling back to select()");
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29 server_type = "select"
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30 end
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31 end
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32
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33 local server;
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34 local set_config;
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35 if server_type == "event" then
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36 server = require "net.server_event";
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37
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38 local defaults = {};
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39 for k,v in pairs(server.cfg) do
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40 defaults[k] = v;
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41 end
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42 function set_config(settings)
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43 local event_settings = {
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44 ACCEPT_DELAY = settings.accept_retry_interval;
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45 ACCEPT_QUEUE = settings.tcp_backlog;
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46 CLEAR_DELAY = settings.event_clear_interval;
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47 CONNECT_TIMEOUT = settings.connect_timeout;
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48 DEBUG = settings.debug;
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49 HANDSHAKE_TIMEOUT = settings.ssl_handshake_timeout;
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50 MAX_CONNECTIONS = settings.max_connections;
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51 MAX_HANDSHAKE_ATTEMPTS = settings.max_ssl_handshake_roundtrips;
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52 MAX_READ_LENGTH = settings.max_receive_buffer_size;
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53 MAX_SEND_LENGTH = settings.max_send_buffer_size;
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54 READ_TIMEOUT = settings.read_timeout;
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55 WRITE_TIMEOUT = settings.send_timeout;
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56 };
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57
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58 for k,default in pairs(defaults) do
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59 server.cfg[k] = event_settings[k] or default;
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60 end
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61 end
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62 elseif server_type == "select" then
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63 server = require "net.server_select";
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64
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65 local defaults = {};
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66 for k,v in pairs(server.getsettings()) do
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67 defaults[k] = v;
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68 end
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69 function set_config(settings)
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70 local select_settings = {};
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71 for k,default in pairs(defaults) do
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72 select_settings[k] = settings[k] or default;
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73 end
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74 server.changesettings(select_settings);
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75 end
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76 else
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77 server = require("net.server_"..server_type);
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78 set_config = server.set_config;
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79 if not server.get_backend then
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80 function server.get_backend()
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81 return server_type;
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82 end
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83 end
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84 end
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85
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86 -- If server.hook_signal exists, replace signal.signal()
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87 local has_signal, signal = pcall(require, "util.signal");
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88 if has_signal then
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89 if server.hook_signal then
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90 function signal.signal(signal_id, handler)
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91 if type(signal_id) == "string" then
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92 signal_id = signal[signal_id:upper()];
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93 end
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94 if type(signal_id) ~= "number" then
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95 return false, "invalid-signal";
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96 end
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97 return server.hook_signal(signal_id, handler);
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98 end
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99 else
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100 server.hook_signal = signal.signal;
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101 end
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102 else
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103 if not server.hook_signal then
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104 server.hook_signal = function()
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105 return false, "signal hooking not supported"
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106 end
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107 end
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108 end
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109
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110 if prosody and set_config then
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111 local config_get = require "core.configmanager".get;
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112 local function load_config()
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113 local settings = config_get("*", "network_settings") or {};
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114 return set_config(settings);
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115 end
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116 load_config();
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117 prosody.events.add_handler("config-reloaded", load_config);
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118 end
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119
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120 -- require "net.server" shall now forever return this,
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121 -- ie. server_select or server_event as chosen above.
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122 return server;