prosody
601f9781a605
util/error.lua

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util/error.lua @ 9912:601f9781a605

mod_csi_simple: Count buffered items and flush when it reaches configured limit In this mode, stanzas have been serialized to strings in the internal net.server buffer, so it is difficult to count them after the fact.
author Kim Alvefur <zash@zash.se>
date Sun, 24 Mar 2019 18:33:38 +0100
parent 9749:9361bd1b9c9b
child 10069:6f317e51544d
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1 local error_mt = { __name = "error" };
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2
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3 function error_mt:__tostring()
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4 return ("error<%s:%s:%s>"):format(self.type, self.condition, self.text);
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5 end
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6
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7 local function is_err(e)
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8 return getmetatable(e) == error_mt;
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9 end
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10
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11 local function new(e, context, registry)
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12 local template = (registry and registry[e]) or e or {};
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13 return setmetatable({
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14 type = template.type or "cancel";
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15 condition = template.condition or "undefined-condition";
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16 text = template.text;
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17
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18 context = context or template.context or { _error_id = e };
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19 }, error_mt);
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20 end
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21
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22 local function coerce(ok, err, ...)
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23 if ok or is_err(err) then
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24 return ok, err, ...;
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25 end
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26
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27 local new_err = setmetatable({
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28 native = err;
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29
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30 type = "cancel";
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31 condition = "undefined-condition";
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32 }, error_mt);
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33 return ok, new_err, ...;
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34 end
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35
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36 local function from_stanza(stanza, context)
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37 local error_type, condition, text = stanza:get_error();
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38 return setmetatable({
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39 type = error_type or "cancel";
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40 condition = condition or "undefined-condition";
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41 text = text;
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42
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43 context = context or { stanza = stanza };
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44 }, error_mt);
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45 end
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46
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47 return {
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48 new = new;
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49 coerce = coerce;
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50 is_err = is_err;
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51 from_stanza = from_stanza;
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52 }