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annotate mod_log_events_by_memory/mod_log_events_by_memory.lua @ 4646:072d078be095

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mod_storage_xmlarchive: Advertise capabilities (none atm) Both 'total' and 'quota' would be prohibitively expensive for the kind of archives this module targets as it would require counting items across the entire archive.
author Kim Alvefur <zash@zash.se>
date Fri, 13 Aug 2021 01:18:32 +0200
parents 5fe34e5f9829
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
Kim Alvefur <zash@zash.se>
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1 module:set_global();
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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2
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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3 local treshold = module:get_option_number("log_memory_threshold", 20*1024);
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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4
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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5 function event_wrapper(handlers, event_name, event_data)
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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6 local memory_before = collectgarbage("count")*1024;
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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7 local ret = handlers(event_name, event_data);
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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8 local memory_after = collectgarbage("count")*1024;
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
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9 if (memory_after - memory_before) > treshold then
5fe34e5f9829 mod_log_events_by_memory: Log events where Lua memory usage increased
Kim Alvefur <zash@zash.se>
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10 module:log("warn", "Memory increased by %g bytes while processing event '%s'", (memory_after - memory_before), event_name);
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11 end
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12 return ret;
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13 end
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15 local http_events = require "net.http.server"._events;
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16 module:wrap_object_event(http_events, false, event_wrapper);
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17
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18 module:wrap_event(false, event_wrapper);
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19 function module.add_host(module)
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20 module:wrap_event(false, event_wrapper);
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21 end