Mercurial > prosody-modules
annotate mod_debug_traceback/mod_debug_traceback.lua @ 4764:a754f7e380b2
mod_dnsupdate: Rewrite port config vs DNS comparison code
I'm not sure if it was correct, which means it was hard to understand
and thus needed to be simplified. Hope this accomplishes that.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 08 Nov 2021 23:03:14 +0100 |
parents | 02292b892fce |
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mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
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1 module:set_global(); |
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2 |
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3 local traceback = require "util.debug".traceback; |
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4 local pposix = require "util.pposix"; |
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5 local os_date = os.date; |
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6 local render_filename = require "util.interpolation".new("%b{}", function (s) return s; end, { |
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7 yyyymmdd = function (t) |
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8 return os_date("%Y%m%d", t); |
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9 end; |
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10 hhmmss = function (t) |
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11 return os_date("%H%M%S", t); |
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12 end; |
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13 }); |
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14 |
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15 local count = 0; |
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16 |
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17 local function get_filename(filename_template) |
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18 filename_template = filename_template; |
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19 return render_filename(filename_template, { |
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20 paths = prosody.paths; |
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21 pid = pposix.getpid(); |
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22 count = count; |
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23 time = os.time(); |
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24 }); |
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25 end |
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26 |
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27 local default_filename_template = "{paths.data}/traceback-{pid}-{count}.log"; |
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28 local filename_template = module:get_option_string("debug_traceback_filename", default_filename_template); |
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29 local signal_name = module:get_option_string("debug_traceback_signal", "SIGUSR1"); |
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30 |
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31 function dump_traceback() |
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32 module:log("info", "Received %s, writing traceback", signal_name); |
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33 |
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34 local tb = traceback(); |
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35 module:fire_event("debug_traceback/triggered", { traceback = tb }); |
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36 |
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37 local f, err = io.open(get_filename(filename_template), "a+"); |
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38 if not f then |
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39 module:log("error", "Unable to write traceback: %s", err); |
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40 return; |
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41 end |
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42 f:write("-- Traceback generated at ", os.date("%b %d %H:%M:%S"), " --\n"); |
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mod_debug_traceback: Fix to use the cached traceback
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43 f:write(tb, "\n"); |
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44 f:write("-- End of traceback --\n"); |
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45 f:close(); |
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46 count = count + 1; |
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47 end |
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48 |
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49 local mod_posix = module:depends("posix"); |
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50 if rawget(mod_posix, "features") and mod_posix.features.signal_events then |
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51 module:hook("signal/"..signal_name, dump_traceback); |
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52 else |
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53 require"util.signal".signal(signal_name, dump_traceback); |
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54 end |