Mercurial > prosody-modules
comparison mod_log_events_by_memory/mod_log_events_by_memory.lua @ 3615:5fe34e5f9829
mod_log_events_by_memory: Log events where Lua memory usage increased
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Mon, 10 Jun 2019 14:38:06 +0200 |
| parents | |
| children |
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| 3614:f74444b0e187 | 3615:5fe34e5f9829 |
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| 1 module:set_global(); | |
| 2 | |
| 3 local treshold = module:get_option_number("log_memory_threshold", 20*1024); | |
| 4 | |
| 5 function event_wrapper(handlers, event_name, event_data) | |
| 6 local memory_before = collectgarbage("count")*1024; | |
| 7 local ret = handlers(event_name, event_data); | |
| 8 local memory_after = collectgarbage("count")*1024; | |
| 9 if (memory_after - memory_before) > treshold then | |
| 10 module:log("warn", "Memory increased by %g bytes while processing event '%s'", (memory_after - memory_before), event_name); | |
| 11 end | |
| 12 return ret; | |
| 13 end | |
| 14 | |
| 15 local http_events = require "net.http.server"._events; | |
| 16 module:wrap_object_event(http_events, false, event_wrapper); | |
| 17 | |
| 18 module:wrap_event(false, event_wrapper); | |
| 19 function module.add_host(module) | |
| 20 module:wrap_event(false, event_wrapper); | |
| 21 end |