comparison: proc.lua
proc.lua
- changeset 0
- 813b739a632b
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| -1:000000000000 | 0:813b739a632b |
|---|---|
| 1 module("systats", package.seeall); | |
| 2 | |
| 3 local cache_time = 5; | |
| 4 | |
| 5 local memory_info = { __fetched = 0 }; | |
| 6 local function get_memory_info() | |
| 7 if (os.time() - memory_info.__fetched) > cache_time then | |
| 8 memory_info.__fetched = os.time(); | |
| 9 for line in io.lines("/proc/meminfo") do | |
| 10 local k, v = line:match("^(%w+):%s*(%d+) kB"); | |
| 11 if k and v then | |
| 12 memory_info[k] = tonumber(v); | |
| 13 end | |
| 14 end | |
| 15 end | |
| 16 return memory_info; | |
| 17 end | |
| 18 | |
| 19 function memory_total() | |
| 20 return get_memory_info().MemTotal; | |
| 21 end | |
| 22 | |
| 23 function memory_free() | |
| 24 return get_memory_info().MemFree; | |
| 25 end | |
| 26 | |
| 27 function memory_used() | |
| 28 return memory_total() - memory_free(); | |
| 29 end | |
| 30 | |
| 31 function load_average() | |
| 32 local l = io.open("/proc/loadavg"); | |
| 33 local five, ten, fifteen = l:read("*l"):match("^(%S+) (%S+) (%S+)"); | |
| 34 l:close(); | |
| 35 return tonumber(five), tonumber(ten), tonumber(fifteen); | |
| 36 end | |
| 37 | |
| 38 function disks() | |
| 39 local df = io.popen("df -k"); | |
| 40 if not df then return nil; end | |
| 41 local disks = {}; | |
| 42 for line in df:lines() do | |
| 43 local device, total, used, free, percent, mounted = | |
| 44 line:match("^(/%S+)%s+(%d+)%s+(%d+)%s+(%d+)%s+(%d+)%%%s+(.+)$"); | |
| 45 if device then | |
| 46 disks[#disks+1] = { | |
| 47 device = device, | |
| 48 total = tonumber(total), used = tonumber(used), | |
| 49 free = tonumber(free), percent_used = tonumber(percent), | |
| 50 mounted_on = mounted, | |
| 51 }; | |
| 52 end | |
| 53 end | |
| 54 df:close(); | |
| 55 return disks; | |
| 56 end | |
| 57 | |
| 58 return _M; |
