252 lines
6.6 KiB
Lua
252 lines
6.6 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 CriticalText = require 'CriticalText'
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local Text = require 'Text'
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local TextColumn = require 'TextColumn'
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local Line = require 'Line'
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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 __string_match = string.match
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local __cairo_path_destroy = cairo_path_destroy
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local __io_popen = io.popen
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local _MODULE_Y_ = 712
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local _DIAL_THICKNESS_ = 8
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local _DIAL_SPACING_ = 1
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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 = _G_Widget_.Header{
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x = _G_INIT_DATA_.RIGHT_X,
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y = _MODULE_Y_,
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width = _G_INIT_DATA_.SECTION_WIDTH,
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header = '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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x = DIAL_X,
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y = DIAL_Y,
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radius = DIAL_RADIUS,
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thickness = _DIAL_THICKNESS_,
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critical_limit = '>0.8',
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dial_pattern = _G_Patterns_.INDICATOR_FG_PRIMARY,
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arc_pattern = _G_Patterns_.INDICATOR_BG
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}
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local cache_arc = _G_Widget_.Arc{
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x = DIAL_X,
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y = DIAL_Y,
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radius = DIAL_RADIUS,
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thickness = _DIAL_THICKNESS_,
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arc_pattern = _G_Patterns_.INDICATOR_FG_SECONDARY
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}
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local total_used = _G_Widget_.CriticalText{
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x = DIAL_X,
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y = DIAL_Y,
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x_align = 'center',
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y_align = 'center',
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append_end = '%'
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}
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local inner_ring = _G_Widget_.Arc{
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x = DIAL_X,
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y = DIAL_Y,
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radius = DIAL_RADIUS - _DIAL_THICKNESS_ / 2 - 2,
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theta0 = 0,
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theta1 = 360,
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arc_pattern = _G_Patterns_.BORDER_FG
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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= {
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label = _G_Widget_.Text{
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x = _TEXT_LEFT_X_,
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y = _LINE_1_Y_,
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spacing = _TEXT_SPACING_,
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text = 'Swap Usage'
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},
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percent = _G_Widget_.CriticalText{
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x = _RIGHT_X_,
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y = _LINE_1_Y_,
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x_align = 'right',
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append_end = ' %',
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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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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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'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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append_end = ' %',
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text_color = _G_Patterns_.SECONDARY_FG,
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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 _PLOT_Y_ = _PLOT_SECTION_BREAK_ + header.bottom_y + DIAL_RADIUS * 2
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local plot = _G_Widget_.LabelPlot{
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x = _G_INIT_DATA_.RIGHT_X,
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y = _PLOT_Y_,
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width = _G_INIT_DATA_.SECTION_WIDTH,
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height = _PLOT_HEIGHT_,
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outline_pattern = _G_Patterns_.BORDER_FG,
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intrvl_pattern = _G_Patterns_.BORDER_FG,
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data_line_pattern = _G_Patterns_.PLOT_FILL_BORDER_PRIMARY,
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data_fill_pattern = _G_Patterns_.PLOT_FILL_BG_PRIMARY,
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}
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local tbl = _G_Widget_.Table{
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x = _G_INIT_DATA_.RIGHT_X,
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y = _PLOT_Y_ + _PLOT_HEIGHT_ + _TABLE_SECTION_BREAK_,
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width = _G_INIT_DATA_.SECTION_WIDTH,
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height = _TABLE_HEIGHT_,
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body_color = _G_Patterns_.INACTIVE_TEXT_FG,
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header_color = _G_Patterns_.PRIMARY_FG,
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line_pattern = _G_Patterns_.BORDER_FG,
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separator_pattern = _G_Patterns_.BORDER_FG,
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'Name',
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'PID',
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'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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CriticalText.set(total_used, 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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CriticalText.set(swap.percent, cr, Util.precision_round_to_string(
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(swap_total_kb - swap_free_kb) / 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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local draw_static = function(cr)
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Text.draw(header.text, cr)
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Line.draw(header.underline, cr)
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Arc.draw(inner_ring, cr)
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Dial.draw_static(dial, cr)
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Text.draw(swap.label, 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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local 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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CriticalText.draw(total_used, cr)
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CriticalText.draw(swap.percent, 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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M.draw_static = draw_static
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M.draw_dynamic = draw_dynamic
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return M
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