Mercurial > prosody-modules
annotate mod_measure_malloc/mod_measure_malloc.lua @ 4651:8231774f5bfd
mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8
The `body:sub()` call risks splitting the string in the middle of a
multi-byte UTF-8 sequence. This should have been caught by util.stanza
validation, but that would have caused some havoc, at the very least causing
the notification to not be sent.
There have been no reports of this happening. Likely because this module
isn't widely deployed among users with languages that use many longer UTF-8
sequences.
The util.encodings.utf8.valid() function is O(n) where only the last
sequence really needs to be checked, but it's in C and expected to be fast.
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 22 Aug 2021 13:22:59 +0200 |
parents | 5b4f43b90766 |
children | b9af1ccac98b |
rev | line source |
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1623
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mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
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1 module:set_global(); |
2c39af0fb93b
mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
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2 |
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mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
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3 local metric = require"core.statsmanager".metric; |
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mod_measure_memory: Split out mallinfo measuring into a separate module, mod_measure_malloc
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4 local pposix = require"util.pposix"; |
1623
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mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff
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5 |
4575
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Jonas Schäfer <jonas@wielicki.name>
parents:
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6 local allocated = metric( |
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parents:
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7 "gauge", "malloc_heap_allocated", "bytes", |
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8 "Allocated bytes by mode of allocation", |
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9 {"mode"} |
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mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
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10 ); |
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Jonas Schäfer <jonas@wielicki.name>
parents:
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11 |
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Jonas Schäfer <jonas@wielicki.name>
parents:
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12 local used = metric( |
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parents:
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13 "gauge", "malloc_heap_used", "bytes", |
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Jonas Schäfer <jonas@wielicki.name>
parents:
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14 "Used bytes" |
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15 ):with_labels(); |
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parents:
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16 |
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Jonas Schäfer <jonas@wielicki.name>
parents:
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17 local unused = metric( |
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Jonas Schäfer <jonas@wielicki.name>
parents:
3367
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18 "gauge", "malloc_heap_unused", "bytes", |
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mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
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19 "Unused bytes" |
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mod_measure_malloc: port to most recent trunk statistics API
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parents:
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20 ):with_labels(); |
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parents:
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21 |
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parents:
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22 local returnable = metric( |
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parents:
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23 "gauge", "malloc_heap_returnable", "bytes", |
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parents:
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24 "Returnable bytes" |
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Jonas Schäfer <jonas@wielicki.name>
parents:
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25 ):with_labels(); |
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parents:
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26 |
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27 module:hook("stats-update", function () |
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28 meminfo = pposix.meminfo(); |
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parents:
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29 if meminfo.allocated then |
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parents:
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30 allocated:with_labels("sbrk"):set(meminfo.allocated); |
1623
2c39af0fb93b
mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff
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31 end |
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32 if meminfo.allocated_mmap then |
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Jonas Schäfer <jonas@wielicki.name>
parents:
3367
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33 allocated:with_labels("mmap"):set(meminfo.allocated_mmap); |
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parents:
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34 end |
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mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
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35 if meminfo.used then |
5b4f43b90766
mod_measure_malloc: port to most recent trunk statistics API
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parents:
3367
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36 used:set(meminfo.used); |
5b4f43b90766
mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
3367
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37 end |
5b4f43b90766
mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
3367
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38 if meminfo.unused then |
5b4f43b90766
mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
3367
diff
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39 unused:set(meminfo.unused); |
5b4f43b90766
mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
3367
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40 end |
5b4f43b90766
mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
3367
diff
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41 if meminfo.returnable then |
5b4f43b90766
mod_measure_malloc: port to most recent trunk statistics API
Jonas Schäfer <jonas@wielicki.name>
parents:
3367
diff
changeset
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42 returnable:set(meminfo.returnable); |
2708
07d6077d2db7
mod_measure_memory: Split out mallinfo measuring into a separate module, mod_measure_malloc
Kim Alvefur <zash@zash.se>
parents:
2436
diff
changeset
|
43 end |
1623
2c39af0fb93b
mod_measure_memory: Module for polling memory useage from Lua, meminfo() and /proc depending on availability
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
44 end); |