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comparison mod_measure_process/mod_measure_process.lua @ 4878:c26f515751af

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mod_measure_process: Handle unlimited FD limits While unlikely, better type-safe than sorry
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 19:09:01 +0100
parents adc6241e5d16
children
comparison
equal deleted inserted replaced
4877:adc6241e5d16 4878:c26f515751af
55 ):with_labels() 55 ):with_labels()
56 else 56 else
57 module:log("warn", "not reporting maximum number of file descriptors because mod_posix is not available") 57 module:log("warn", "not reporting maximum number of file descriptors because mod_posix is not available")
58 end 58 end
59 59
60 local function limit2num(limit)
61 if limit == "unlimited" then
62 return math.huge
63 end
64 return limit
65 end
66
60 module:hook("stats-update", function () 67 module:hook("stats-update", function ()
61 local count = 0 68 local count = 0
62 for _ in lfs.dir("/proc/self/fd") do 69 for _ in lfs.dir("/proc/self/fd") do
63 count = count + 1 70 count = count + 1
64 end 71 end
65 open_fds:set(count) 72 open_fds:set(count)
66 73
67 if has_posix then 74 if has_posix then
68 local ok, soft, hard = posix.getrlimit("NOFILE") 75 local ok, soft, hard = posix.getrlimit("NOFILE")
69 if ok then 76 if ok then
70 max_fds:set(soft or hard); 77 max_fds:set(limit2num(soft or hard));
71 end 78 end
72 end 79 end
73 end); 80 end);
74 end 81 end