prosody
902d25cd0557
net/resolvers/chain.lua

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net/resolvers/chain.lua @ 13554:902d25cd0557

mod_s2s: Limit size of outgoing stanza queue This queue is used to buffer stanzas while waiting for an outgoing s2s connection to be established. Limit it to prevent excessive memory usage. Default chosen to approximate how many average stanzas fits in the server_epoll default max_send_buffer_size of 32 MiB Returns a custom error instead of the default core.stanza_router "Communication with remote domains is not enabled" from is sent back, which does not describe what is happening here. Closes #1106
author Kim Alvefur <zash@zash.se>
date Sat, 09 Nov 2024 16:47:14 +0100
parent 12204:7c397a49d163
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12204
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
Kim Alvefur <zash@zash.se>
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1
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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2 local methods = {};
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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3 local resolver_mt = { __index = methods };
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4
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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5 -- Find the next target to connect to, and
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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6 -- pass it to cb()
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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7 function methods:next(cb)
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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8 if self.resolvers then
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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9 if not self.resolver then
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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10 if #self.resolvers == 0 then
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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11 cb(nil);
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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12 return;
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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13 end
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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14 local next_resolver = table.remove(self.resolvers, 1);
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15 self.resolver = next_resolver;
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16 end
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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17 self.resolver:next(function (...)
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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18 if self.resolver then
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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19 self.last_error = self.resolver.last_error;
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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20 end
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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21 if ... == nil then
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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22 self.resolver = nil;
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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23 self:next(cb);
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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24 else
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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25 cb(...);
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26 end
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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27 end);
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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28 return;
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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29 end
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30 end
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31
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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32 local function new(resolvers)
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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33 return setmetatable({ resolvers = resolvers }, resolver_mt);
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34 end
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35
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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36 return {
7c397a49d163 net.resolvers.chain: A resolver for combining other resolvers
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37 new = new;
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38 };