prosody
2b97aac0ea3c
plugins/mod_csi_simple.lua

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plugins/mod_csi_simple.lua @ 10801:2b97aac0ea3c

mod_csi_simple: Don't consider presence errors as important A large share of `<presence type=error>` appears to be noise from large public channels and failed presence probes. The later at least should count as presence updates, which are currently considered unimportant. See also 8cecb85e4bc4 which is partly reverted here. The intent there was probably mostly about message (delivery) errors, which should be considered important.
author Kim Alvefur <zash@zash.se>
date Tue, 05 May 2020 23:08:47 +0200
parent 10772:31e702c5f475
child 10806:24e2b571d29a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Copyright (C) 2016-2020 Kim Alvefur
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2 --
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3 -- This project is MIT/X11 licensed. Please see the
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4 -- COPYING file in the source package for more information.
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5 --
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6
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7 module:depends"csi"
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8
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9 local jid = require "util.jid";
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10 local st = require "util.stanza";
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11 local dt = require "util.datetime";
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12 local filters = require "util.filters";
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13
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14 local queue_size = module:get_option_number("csi_queue_size", 256);
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15
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16 local important_payloads = module:get_option_set("csi_important_payloads", { });
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17
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18 module:hook("csi-is-stanza-important", function (event)
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19 local stanza = event.stanza;
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20 if not st.is_stanza(stanza) then
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21 -- whitespace pings etc
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22 return true;
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23 end
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24 if stanza.attr.xmlns ~= nil then
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25 -- stream errors, stream management etc
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26 return true;
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27 end
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28 local st_name = stanza.name;
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29 if not st_name then return false; end
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30 local st_type = stanza.attr.type;
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31 if st_name == "presence" then
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32 if st_type == nil or st_type == "unavailable" or st_name == "error" then
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33 return false;
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34 end
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35 -- TODO Some MUC awareness, e.g. check for the 'this relates to you' status code
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36 return true;
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37 elseif st_name == "message" then
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38 if st_type == "headline" then
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39 return false;
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40 end
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41 if st_type == "error" then
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42 return true;
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43 end
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44 if stanza:get_child("sent", "urn:xmpp:carbons:2") then
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45 return true;
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46 end
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47 local forwarded = stanza:find("{urn:xmpp:carbons:2}received/{urn:xmpp:forward:0}/{jabber:client}message");
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48 if forwarded then
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49 stanza = forwarded;
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50 end
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51 if stanza:get_child("body") then
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52 return true;
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53 end
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54 if stanza:get_child("subject") then
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55 return true;
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56 end
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57 if stanza:get_child("encryption", "urn:xmpp:eme:0") then
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58 return true;
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59 end
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60 if stanza:get_child("x", "jabber:x:conference") or stanza:find("{http://jabber.org/protocol/muc#user}x/invite") then
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61 return true;
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62 end
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63 for important in important_payloads do
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64 if stanza:find(important) then
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65 return true;
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66 end
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67 end
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68 return false;
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69 elseif st_name == "iq" then
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70 return true;
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71 end
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72 end, -1);
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73
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74 local function with_timestamp(stanza, from)
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75 if st.is_stanza(stanza) and stanza.attr.xmlns == nil and stanza.name ~= "iq" then
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76 stanza = st.clone(stanza);
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77 stanza:add_direct_child(st.stanza("delay", {xmlns = "urn:xmpp:delay", from = from, stamp = dt.datetime()}));
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78 end
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79 return stanza;
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80 end
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81
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82 local function manage_buffer(stanza, session)
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83 local ctr = session.csi_counter or 0;
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84 if ctr >= queue_size then
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85 session.log("debug", "Queue size limit hit, flushing buffer (queue size is %d)", session.csi_counter);
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86 session.conn:resume_writes();
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87 elseif module:fire_event("csi-is-stanza-important", { stanza = stanza, session = session }) then
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88 session.log("debug", "Important stanza, flushing buffer (queue size is %d)", session.csi_counter);
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89 session.conn:resume_writes();
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90 else
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91 stanza = with_timestamp(stanza, jid.join(session.username, session.host))
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92 end
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93 session.csi_counter = ctr + 1;
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94 return stanza;
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95 end
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96
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97 local function flush_buffer(data, session)
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98 if session.csi_flushing then
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99 return data;
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100 end
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101 session.csi_flushing = true;
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102 session.log("debug", "Client sent something, flushing buffer once (queue size is %d)", session.csi_counter);
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103 session.conn:resume_writes();
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104 return data;
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105 end
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106
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107 function enable_optimizations(session)
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108 if session.conn and session.conn.pause_writes then
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109 session.conn:pause_writes();
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110 filters.add_filter(session, "stanzas/out", manage_buffer);
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111 filters.add_filter(session, "bytes/in", flush_buffer);
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112 else
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113 session.log("warn", "Session connection does not support write pausing");
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114 end
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115 end
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116
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Matthew Wild <mwild1@gmail.com>
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117 function disable_optimizations(session)
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118 session.csi_flushing = nil;
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119 filters.remove_filter(session, "stanzas/out", manage_buffer);
c434bff22b14 mod_csi_simple: Always remove session filters when disabling CSI
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parents: 10302
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120 filters.remove_filter(session, "bytes/in", flush_buffer);
10277
45a58127a3e5 mod_csi_simple: Remove duplicated check for connection
Kim Alvefur <zash@zash.se>
parents: 10025
diff changeset
121 if session.conn and session.conn.resume_writes then
9909
3229be01a08a mod_csi_simple: Use write locks in net.server if available
Kim Alvefur <zash@zash.se>
parents: 9771
diff changeset
122 session.conn:resume_writes();
9589
aeb054ee88c5 mod_csi_simple: Import modified version of mod_csi_pump from prosody-modules
Kim Alvefur <zash@zash.se>
parents:
diff changeset
123 end
9918
6e9dcec259d0 mod_csi_simple: Separate out functions to enable/disable optimizations
Kim Alvefur <zash@zash.se>
parents: 9917
diff changeset
124 end
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parents: 9917
diff changeset
125
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parents: 9917
diff changeset
126 module:hook("csi-client-inactive", function (event)
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127 local session = event.origin;
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parents: 9917
diff changeset
128 enable_optimizations(session);
6e9dcec259d0 mod_csi_simple: Separate out functions to enable/disable optimizations
Kim Alvefur <zash@zash.se>
parents: 9917
diff changeset
129 end);
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parents: 9917
diff changeset
130
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parents: 9917
diff changeset
131 module:hook("csi-client-active", function (event)
6e9dcec259d0 mod_csi_simple: Separate out functions to enable/disable optimizations
Kim Alvefur <zash@zash.se>
parents: 9917
diff changeset
132 local session = event.origin;
9922
06bf5ccd859f mod_csi_simple: Fix type in function name
Matthew Wild <mwild1@gmail.com>
parents: 9921
diff changeset
133 disable_optimizations(session);
9589
aeb054ee88c5 mod_csi_simple: Import modified version of mod_csi_pump from prosody-modules
Kim Alvefur <zash@zash.se>
parents:
diff changeset
134 end);
aeb054ee88c5 mod_csi_simple: Import modified version of mod_csi_pump from prosody-modules
Kim Alvefur <zash@zash.se>
parents:
diff changeset
135
10025
4498f601516d mod_csi_simple: Disable optimizations on disconnect (fixes #1358)
Kim Alvefur <zash@zash.se>
parents: 9923
diff changeset
136 module:hook("pre-resource-unbind", function (event)
4498f601516d mod_csi_simple: Disable optimizations on disconnect (fixes #1358)
Kim Alvefur <zash@zash.se>
parents: 9923
diff changeset
137 local session = event.session;
4498f601516d mod_csi_simple: Disable optimizations on disconnect (fixes #1358)
Kim Alvefur <zash@zash.se>
parents: 9923
diff changeset
138 disable_optimizations(session);
10414
51ebfdeccad7 mod_csi_simple: Make sure to disable optimizations before mod_smacks (thanks pep.)
Kim Alvefur <zash@zash.se>
parents: 10303
diff changeset
139 end, 1);
9912
601f9781a605 mod_csi_simple: Count buffered items and flush when it reaches configured limit
Kim Alvefur <zash@zash.se>
parents: 9911
diff changeset
140
601f9781a605 mod_csi_simple: Count buffered items and flush when it reaches configured limit
Kim Alvefur <zash@zash.se>
parents: 9911
diff changeset
141 module:hook("c2s-ondrain", function (event)
601f9781a605 mod_csi_simple: Count buffered items and flush when it reaches configured limit
Kim Alvefur <zash@zash.se>
parents: 9911
diff changeset
142 local session = event.session;
10277
45a58127a3e5 mod_csi_simple: Remove duplicated check for connection
Kim Alvefur <zash@zash.se>
parents: 10025
diff changeset
143 if session.state == "inactive" and session.conn and session.conn.pause_writes then
9923
e83dfcdeab59 mod_csi_simple: Include queue size in debug messages
Kim Alvefur <zash@zash.se>
parents: 9922
diff changeset
144 session.conn:pause_writes();
e83dfcdeab59 mod_csi_simple: Include queue size in debug messages
Kim Alvefur <zash@zash.se>
parents: 9922
diff changeset
145 session.log("debug", "Buffer flushed, resuming inactive mode (queue size was %d)", session.csi_counter);
9912
601f9781a605 mod_csi_simple: Count buffered items and flush when it reaches configured limit
Kim Alvefur <zash@zash.se>
parents: 9911
diff changeset
146 session.csi_counter = 0;
601f9781a605 mod_csi_simple: Count buffered items and flush when it reaches configured limit
Kim Alvefur <zash@zash.se>
parents: 9911
diff changeset
147 end
601f9781a605 mod_csi_simple: Count buffered items and flush when it reaches configured limit
Kim Alvefur <zash@zash.se>
parents: 9911
diff changeset
148 end);
9919
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
149
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
150 function module.load()
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
151 for _, user_session in pairs(prosody.hosts[module.host].sessions) do
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
152 for _, session in pairs(user_session.sessions) do
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
153 if session.state == "inactive" then
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
154 enable_optimizations(session);
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
155 end
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
156 end
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
157 end
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
158 end
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
159
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
160 function module.unload()
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
161 for _, user_session in pairs(prosody.hosts[module.host].sessions) do
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
162 for _, session in pairs(user_session.sessions) do
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
163 if session.state == "inactive" then
9922
06bf5ccd859f mod_csi_simple: Fix type in function name
Matthew Wild <mwild1@gmail.com>
parents: 9921
diff changeset
164 disable_optimizations(session);
9919
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
165 end
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
166 end
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
167 end
d602a495409b mod_csi_simple: Disable optimizations on unload and re-enable on load
Kim Alvefur <zash@zash.se>
parents: 9918
diff changeset
168 end