Mercurial > prosody-modules
view mod_storage_xmlarchive/datamanager_append_raw.lib.lua @ 4578:d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
In the spirit of separate collectors found in other Prometheus
packages, this is a separate module to collect metrics related to
the lua stack itself.
author | Jonas Schäfer <jonas@wielicki.name> |
---|---|
date | Sat, 29 May 2021 12:12:17 +0200 |
parents | f4ab0966ba89 |
children |
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local io_open = io.open; local dm = require "core.storagemanager".olddm; -- Append a blob of data to a file function dm.append_raw(username, host, datastore, ext, data) if type(data) ~= "string" then return; end local filename = dm.getpath(username, host, datastore, ext, true); local ok; local f, msg = io_open(filename, "r+"); if not f then -- File did probably not exist, let's create it f, msg = io_open(filename, "w"); if not f then return nil, msg, "open"; end end local pos = f:seek("end"); ok, msg = f:write(data); if not ok then f:close(); return ok, msg, "write"; end ok, msg = f:close(); if not ok then return ok, msg; end return true, pos; end