Mercurial > prosody-modules
view mod_log_events_by_memory/mod_log_events_by_memory.lua @ 4249:64aa1d9d70ac
mod_rest: Catch and log errors in callback promise chain
From the code it looks like it should be possible to reply to an error
stanza, but it did not. Turns out I was saved by my local developer mode
module which throws errors if an attempt is made to create an errror
reply to an error stanza. However nothing collects this error from the
promise, so all I got was confusion.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 15 Nov 2020 16:25:49 +0100 |
parents | 5fe34e5f9829 |
children |
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module:set_global(); local treshold = module:get_option_number("log_memory_threshold", 20*1024); function event_wrapper(handlers, event_name, event_data) local memory_before = collectgarbage("count")*1024; local ret = handlers(event_name, event_data); local memory_after = collectgarbage("count")*1024; if (memory_after - memory_before) > treshold then module:log("warn", "Memory increased by %g bytes while processing event '%s'", (memory_after - memory_before), event_name); end return ret; end local http_events = require "net.http.server"._events; module:wrap_object_event(http_events, false, event_wrapper); module:wrap_event(false, event_wrapper); function module.add_host(module) module:wrap_event(false, event_wrapper); end