Mercurial > prosody-modules
view mod_measure_malloc/mod_measure_malloc.lua @ 5381:32a9817c7516
mod_firewall: Initialize compiled chunk just once for all handlers
This should fix a case where some stateful dependencies (such as throttles)
produce separate instances for every call to new_handler(), leading to
surprising behaviour (e.g. rules executed via JUMP CHAIN vs ::deliver would
have separate rate limits).
This also adds better error handling in case the compiled code fails to run
for some reason.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Fri, 28 Apr 2023 13:27:06 +0100 |
parents | b9af1ccac98b |
children |
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module:set_global(); local metric = require"core.statsmanager".metric; local pposix = require"util.pposix"; local allocated = metric( "gauge", "malloc_heap_allocated", "bytes", "Allocated bytes by mode of allocation", {"mode"} ); local used = metric( "gauge", "malloc_heap_used", "bytes", "Used bytes" ):with_labels(); local unused = metric( "gauge", "malloc_heap_unused", "bytes", "Unused bytes" ):with_labels(); local returnable = metric( "gauge", "malloc_heap_returnable", "bytes", "Returnable bytes" ):with_labels(); module:hook("stats-update", function () local meminfo = pposix.meminfo(); if meminfo.allocated then allocated:with_labels("sbrk"):set(meminfo.allocated); end if meminfo.allocated_mmap then allocated:with_labels("mmap"):set(meminfo.allocated_mmap); end if meminfo.used then used:set(meminfo.used); end if meminfo.unused then unused:set(meminfo.unused); end if meminfo.returnable then returnable:set(meminfo.returnable); end end);