274 lines
7.0 KiB
Lua
274 lines
7.0 KiB
Lua
local M = {}
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local Arc = require 'Arc'
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local Dial = require 'Dial'
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local TextColumn = require 'TextColumn'
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local LabelPlot = require 'LabelPlot'
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local Table = require 'Table'
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local Util = require 'Util'
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local Common = require 'Common'
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local __string_match = string.match
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local __cairo_path_destroy = cairo_path_destroy
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local _MODULE_Y_ = 712
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local _DIAL_THICKNESS_ = 8
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local _TEXT_Y_OFFSET_ = 7
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local _TEXT_LEFT_X_OFFSET_ = 30
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local _TEXT_SPACING_ = 20
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local _PLOT_SECTION_BREAK_ = 30
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local _PLOT_HEIGHT_ = 56
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local _TABLE_SECTION_BREAK_ = 20
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local _TABLE_HEIGHT_ = 114
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local MEM_TOTAL_KB = tonumber(Util.read_file('/proc/meminfo', '^MemTotal:%s+(%d+)'))
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local MEMINFO_REGEX = '\nMemFree:%s+(%d+).+'..
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'\nBuffers:%s+(%d+).+'..
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'\nCached:%s+(%d+).+'..
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'\nSwapTotal:%s+(%d+).+'..
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'\nSwapFree:%s+(%d+).+'..
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'\nSReclaimable:%s+(%d+)'
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local NUM_ROWS = 5
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local TABLE_CONKY = {}
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for r = 1, NUM_ROWS do
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TABLE_CONKY[r] = {}
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TABLE_CONKY[r].comm = '${top_mem name '..r..'}'
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TABLE_CONKY[r].pid = '${top_mem pid '..r..'}'
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TABLE_CONKY[r].mem = '${top_mem mem '..r..'}'
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end
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local header = Common.Header(
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_G_INIT_DATA_.RIGHT_X,
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_MODULE_Y_,
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_G_INIT_DATA_.SECTION_WIDTH,
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'MEMORY'
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)
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local DIAL_RADIUS = 32
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local DIAL_THETA_0 = math.rad(90)
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local DIAL_THETA_1 = math.rad(360)
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local DIAL_X = _G_INIT_DATA_.RIGHT_X + DIAL_RADIUS + _DIAL_THICKNESS_ / 2
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local DIAL_Y = header.bottom_y + DIAL_RADIUS + _DIAL_THICKNESS_ / 2
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local dial = _G_Widget_.Dial(
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_G_Widget_.make_semicircle(
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_G_Widget_.make_point(DIAL_X, DIAL_Y),
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DIAL_RADIUS,
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90,
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360
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),
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_G_Widget_.arc_style(
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_DIAL_THICKNESS_,
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_G_Patterns_.INDICATOR_BG
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),
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_G_Widget_.threshold_style(
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_G_Patterns_.INDICATOR_FG_PRIMARY,
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_G_Patterns_.INDICATOR_FG_CRITICAL,
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0.8
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)
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)
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local cache_arc = _G_Widget_.Arc(
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_G_Widget_.make_semicircle(
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_G_Widget_.make_point(DIAL_X, DIAL_Y),
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DIAL_RADIUS,
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90,
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360
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),
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_G_Widget_.arc_style(
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_DIAL_THICKNESS_,
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_G_Patterns_.INDICATOR_FG_SECONDARY
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)
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)
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local text_ring = Common.initTextRing(
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DIAL_X,
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DIAL_Y,
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DIAL_RADIUS - _DIAL_THICKNESS_ / 2 - 2,
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'%s%%',
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80
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)
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local _LINE_1_Y_ = header.bottom_y + _TEXT_Y_OFFSET_
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local _TEXT_LEFT_X_ = _G_INIT_DATA_.RIGHT_X + DIAL_RADIUS * 2 + _TEXT_LEFT_X_OFFSET_
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local _RIGHT_X_ = _G_INIT_DATA_.RIGHT_X + _G_INIT_DATA_.SECTION_WIDTH
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local swap = Common.initTextRowCrit(
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_TEXT_LEFT_X_,
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_LINE_1_Y_,
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-- TODO this is silly
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_RIGHT_X_ - _TEXT_LEFT_X_,
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'Swap Usage',
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'%s%%',
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80
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)
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-- local cache = {
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-- labels = _G_Widget_.TextColumn{
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-- x = _TEXT_LEFT_X_,
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-- y = _LINE_1_Y_ + _TEXT_SPACING_,
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-- spacing = _TEXT_SPACING_,
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-- text_color = _G_Patterns_.INACTIVE_TEXT_FG,
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-- font_spec = Common.normal_font_spec,
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-- x_align = 'left',
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-- y_align = 'center',
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-- 'Page Cache',
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-- 'Buffers',
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-- 'Kernel Slab'
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-- },
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-- percents = _G_Widget_.TextColumn{
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-- x = _RIGHT_X_,
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-- y = _LINE_1_Y_ + _TEXT_SPACING_,
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-- x_align = 'right',
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-- y_align = 'center',
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-- append_end = ' %',
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-- text_color = _G_Patterns_.SECONDARY_FG,
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-- font_spec = Common.normal_font_spec,
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-- '<cached_kb>',
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-- '<buffers_kb>',
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-- '<kernel_slab>'
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-- },
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-- }
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local cache = {
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labels = _G_Widget_.TextColumn(
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_G_Widget_.make_point(
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_TEXT_LEFT_X_,
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_LINE_1_Y_ + _TEXT_SPACING_
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),
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{'Page Cache', 'Buffers', 'Kernel Slab'},
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_G_Widget_.text_style(
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Common.normal_font_spec,
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_G_Patterns_.INACTIVE_TEXT_FG,
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'left',
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'center'
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),
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nil,
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_TEXT_SPACING_
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),
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percents = _G_Widget_.initTextColumnN(
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_G_Widget_.make_point(
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_RIGHT_X_,
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_LINE_1_Y_ + _TEXT_SPACING_
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),
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3,
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_G_Widget_.text_style(
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Common.normal_font_spec,
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_G_Patterns_.SECONDARY_FG,
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'right',
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'center'
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),
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'%s%%',
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_TEXT_SPACING_
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),
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}
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local _PLOT_Y_ = _PLOT_SECTION_BREAK_ + header.bottom_y + DIAL_RADIUS * 2
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local plot = Common.initThemedLabelPlot(
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_G_INIT_DATA_.RIGHT_X,
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_PLOT_Y_,
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_G_INIT_DATA_.SECTION_WIDTH,
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_PLOT_HEIGHT_
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)
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local tbl = Common.initTable(
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_G_INIT_DATA_.RIGHT_X,
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_PLOT_Y_ + _PLOT_HEIGHT_ + _TABLE_SECTION_BREAK_,
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_G_INIT_DATA_.SECTION_WIDTH,
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_TABLE_HEIGHT_,
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NUM_ROWS,
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{'Name', 'PID', 'Mem (%)'}
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)
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local update = function(cr)
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local conky = Util.conky
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-- see source for the 'free' command (sysinfo.c) for formulas
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local memfree_kb, buffers_kb, cached_kb, swap_total_kb, swap_free_kb,
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slab_reclaimable_kb = __string_match(Util.read_file('/proc/meminfo'), MEMINFO_REGEX)
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local used_percent = (MEM_TOTAL_KB - memfree_kb - cached_kb - buffers_kb - slab_reclaimable_kb) / MEM_TOTAL_KB
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Dial.set(dial, used_percent)
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Common.text_ring_set(text_ring, cr, Util.round_to_string(used_percent * 100))
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local cache_theta = (DIAL_THETA_0 - DIAL_THETA_1) / MEM_TOTAL_KB * memfree_kb + DIAL_THETA_1
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__cairo_path_destroy(cache_arc.path)
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cache_arc.path = Arc.create_path(cr, DIAL_X, DIAL_Y, DIAL_RADIUS, dial.dial_angle, cache_theta)
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Common.text_row_crit_set(swap, cr,
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Util.precision_round_to_string(
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(swap_total_kb - swap_free_kb)
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/ swap_total_kb * 100))
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local _percents = cache.percents
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TextColumn.set(_percents, cr, 1, Util.precision_round_to_string(
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cached_kb / MEM_TOTAL_KB * 100))
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TextColumn.set(_percents, cr, 2, Util.precision_round_to_string(
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buffers_kb / MEM_TOTAL_KB * 100))
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TextColumn.set(_percents, cr, 3, Util.precision_round_to_string(
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slab_reclaimable_kb / MEM_TOTAL_KB * 100))
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LabelPlot.update(plot, used_percent)
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for r = 1, NUM_ROWS do
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local comm = conky(TABLE_CONKY[r].comm, '(%S+)') -- may have trailing space
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local pid = conky(TABLE_CONKY[r].pid)
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local mem = conky(TABLE_CONKY[r].mem)
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Table.set(tbl, cr, 1, r, comm)
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Table.set(tbl, cr, 2, r, pid)
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Table.set(tbl, cr, 3, r, mem)
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end
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end
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_MODULE_Y_ = nil
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_DIAL_THICKNESS_ = nil
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_DIAL_SPACING_ = nil
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_TEXT_Y_OFFSET_ = nil
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_TEXT_LEFT_X_OFFSET_ = nil
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_TEXT_SPACING_ = nil
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_PLOT_SECTION_BREAK_ = nil
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_PLOT_HEIGHT_ = nil
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_TABLE_SECTION_BREAK_ = nil
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_TABLE_HEIGHT_ = nil
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_LINE_1_Y_ = nil
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_TEXT_LEFT_X_ = nil
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_RIGHT_X_ = nil
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_PLOT_Y_ = nil
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M.draw_static = function(cr)
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Common.drawHeader(cr, header)
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Common.text_ring_draw_static(text_ring, cr)
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Dial.draw_static(dial, cr)
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Common.text_row_crit_draw_static(swap, cr)
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TextColumn.draw(cache.labels, cr)
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LabelPlot.draw_static(plot, cr)
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Table.draw_static(tbl, cr)
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end
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M.draw_dynamic = function(cr)
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update(cr)
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Dial.draw_dynamic(dial, cr)
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Arc.draw(cache_arc, cr)
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Common.text_ring_draw_dynamic(text_ring, cr)
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Common.text_row_crit_draw_dynamic(swap, cr)
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TextColumn.draw(cache.percents, cr)
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LabelPlot.draw_dynamic(plot, cr)
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Table.draw_dynamic(tbl, cr)
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end
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return M
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