Mercurial > prosody-modules
annotate mod_presence_cache/README.markdown @ 5536:96dec7681af8
mod_firewall: Update user marks to store instantly via map store
The original approach was to keep marks in memory only, and persist them at
shutdown. That saves I/O, at the cost of potentially losing marks on an
unclean shutdown.
This change persists marks instantly, which may have some performance overhead
but should be more "correct".
It also splits the marking/unmarking into an event which may be watched or
even fired by other modules.
| author | Matthew Wild <mwild1@gmail.com> |
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| date | Thu, 08 Jun 2023 16:20:42 +0100 |
| parents | ed2bb50d4f91 |
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1 --- |
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2 summary: Cache presence from remote users |
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3 ... |
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4 |
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5 Introduction |
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6 ============ |
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7 |
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8 This module stores a timestamp of the latest presence received from |
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9 users contacts so that the client can see who is online faster when they |
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10 sign in, and won't have to wait for remote servers to reply. |
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11 |
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12 Configuration |
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13 ============= |
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14 |
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15 Just enable the module. |
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16 |
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17 modules_enabled = { |
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18 -- more modules |
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19 "presence_cache"; |
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20 } |
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21 |
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22 Advanced configuration |
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23 ====================== |
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24 |
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25 The size of the cache is tuneable: |
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26 |
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27 presence_cache_size = 99 |
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28 |
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29 Compatibility |
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30 ============= |
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31 |
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32 Requires 0.10 or later |