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mod_debug_traceback/mod_debug_traceback.lua @ 4730:1da4b815d2fe
mod_cloud_notify: Identify (and immediately push) urgent stanzas, e.g. calls
This covers the following things:
- A session that appears online, but has a broken TCP connection
- Clients such as Siskin and Snikket iOS that require a push for calls to work
It allows the stanza to be pushed immediately instead of waiting for the
session to hibernate or an ack to timeout.
It shouldn't break any existing cases.
author | Matthew Wild <mwild1@gmail.com> |
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date | Wed, 27 Oct 2021 19:12:03 +0100 |
parent | 4222:02292b892fce |
child | 5874:0358fcf14cd6 |
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module:set_global(); local traceback = require "util.debug".traceback; local pposix = require "util.pposix"; local os_date = os.date; local render_filename = require "util.interpolation".new("%b{}", function (s) return s; end, { yyyymmdd = function (t) return os_date("%Y%m%d", t); end; hhmmss = function (t) return os_date("%H%M%S", t); end; }); local count = 0; local function get_filename(filename_template) filename_template = filename_template; return render_filename(filename_template, { paths = prosody.paths; pid = pposix.getpid(); count = count; time = os.time(); }); end local default_filename_template = "{paths.data}/traceback-{pid}-{count}.log"; local filename_template = module:get_option_string("debug_traceback_filename", default_filename_template); local signal_name = module:get_option_string("debug_traceback_signal", "SIGUSR1"); function dump_traceback() module:log("info", "Received %s, writing traceback", signal_name); local tb = traceback(); module:fire_event("debug_traceback/triggered", { traceback = tb }); local f, err = io.open(get_filename(filename_template), "a+"); if not f then module:log("error", "Unable to write traceback: %s", err); return; end f:write("-- Traceback generated at ", os.date("%b %d %H:%M:%S"), " --\n"); f:write(tb, "\n"); f:write("-- End of traceback --\n"); f:close(); count = count + 1; end local mod_posix = module:depends("posix"); if rawget(mod_posix, "features") and mod_posix.features.signal_events then module:hook("signal/"..signal_name, dump_traceback); else require"util.signal".signal(signal_name, dump_traceback); end