140 lines
5.3 KiB
Lua
140 lines
5.3 KiB
Lua
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-- RAM and swap usage widget type for FreeBSD
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-- Copyright (C) 2017-2019 mutlusun <mutlusun@github.com>
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-- Copyright (C) 2018 Andreas Geisenhainer <psycorama@datenhalde.de>
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-- Copyright (C) 2019 Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
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--
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-- This file is part of Vicious.
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--
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-- Vicious is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as
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-- published by the Free Software Foundation, either version 2 of the
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-- License, or (at your option) any later version.
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--
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-- Vicious is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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-- {{{ Grab environment
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local tonumber = tonumber
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local math = { floor = math.floor }
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local string = {
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match = string.match,
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gmatch = string.gmatch,
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find = string.find
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}
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local helpers = require("vicious.helpers")
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local spawn = require("vicious.spawn")
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-- }}}
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-- Mem: provides RAM and Swap usage statistics
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-- vicious.widgets.mem_freebsd
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local mem_freebsd = {}
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-- {{{ Memory widget type
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function mem_freebsd.async(format, warg, callback)
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helpers.sysctl_async({ "hw.pagesize",
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"vm.stats.vm",
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"vm.swap_total",
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"vm.swap_enabled" },
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function(ret)
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local pgsz = tonumber(ret["hw.pagesize"])
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local _mem = { buf = {}, total = nil }
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-- Get memory space in bytes
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_mem.total = tonumber(ret["vm.stats.vm.v_page_count"]) * pgsz
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_mem.buf.free = tonumber(ret["vm.stats.vm.v_free_count"]) * pgsz
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_mem.buf.laundry = tonumber(ret["vm.stats.vm.v_laundry_count"]) * pgsz
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_mem.buf.cache = tonumber(ret["vm.stats.vm.v_cache_count"]) * pgsz
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_mem.buf.wired = tonumber(ret["vm.stats.vm.v_wire_count"]) * pgsz
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-- Rework into megabytes
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_mem.total = math.floor(_mem.total/1048576)
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_mem.buf.free = math.floor(_mem.buf.free/1048576)
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_mem.buf.laundry = math.floor(_mem.buf.laundry/1048576)
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_mem.buf.cache = math.floor(_mem.buf.cache/1048576)
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_mem.buf.wired = math.floor(_mem.buf.wired/1048576)
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-- Calculate memory percentage
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_mem.free = _mem.buf.free + _mem.buf.cache
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-- used memory basically consists of active+inactive+wired
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_mem.inuse = _mem.total - _mem.free
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_mem.notfreeable = _mem.inuse - _mem.buf.laundry
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_mem.wire = _mem.buf.wired
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_mem.usep = math.floor(_mem.inuse / _mem.total * 100)
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_mem.wirep = math.floor(_mem.wire / _mem.total * 100)
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_mem.notfreeablep = math.floor(_mem.notfreeable / _mem.total * 100)
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-- Get swap states
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local vm_swap_total = tonumber(ret["vm.swap_total"])
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local vm_swap_enabled = tonumber(ret["vm.swap_enabled"])
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local _swp = { buf = {}, total = nil }
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if vm_swap_enabled == 1 and vm_swap_total > 0 then
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-- Initialise variables
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_swp.usep = 0
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_swp.inuse = 0
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_swp.total = 0
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_swp.buf.free = 0
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-- Read output of swapinfo in Mbytes (from async function call)
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-- Read content and sum up
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spawn.with_line_callback("swapinfo -m", {
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stdout = function(line)
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if not string.find(line, "Device") then
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local ltotal, lused, lfree = string.match(
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line, "%s+([%d]+)%s+([%d]+)%s+([%d]+)")
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-- Add swap space in Mbytes
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_swp.total = _swp.total + tonumber(ltotal)
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_swp.inuse = _swp.inuse + tonumber(lused)
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_swp.buf.free = _swp.buf.free + tonumber(lfree)
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end
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end,
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output_done = function()
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print(_swp.inuse, _swp.total)
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_swp.usep = math.floor(_swp.inuse / _swp.total * 100)
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callback({ _mem.usep,
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_mem.inuse,
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_mem.total,
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_mem.free,
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_swp.usep,
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_swp.inuse,
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_swp.total,
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_swp.buf.free,
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_mem.wirep,
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_mem.wire,
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_mem.notfreeablep,
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_mem.notfreeable })
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end
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})
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else
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_swp.usep = -1
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_swp.inuse = -1
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_swp.total = -1
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_swp.buf.free = -1
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callback({ _mem.usep,
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_mem.inuse,
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_mem.total,
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_mem.free,
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_swp.usep,
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_swp.inuse,
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_swp.total,
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_swp.buf.free,
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_mem.wirep,
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_mem.wire,
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_mem.notfreeablep,
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_mem.notfreeable })
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end
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end)
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end
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-- }}}
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return helpers.setasyncall(mem_freebsd)
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