110 lines
3.0 KiB
Lua
110 lines
3.0 KiB
Lua
local util = require 'util'
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local common = require 'common'
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local geometry = require 'geometry'
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local func = require 'func'
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return function(update_freq)
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local PLOT_SEC_BREAK = 20
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local PLOT_HEIGHT = 56
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local get_interfaces = function()
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local s = util.execute_cmd('realpath /sys/class/net/* | grep -v virtual')
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local interfaces = {}
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for iface in string.gmatch(s, '/([^/\n]+)\n') do
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interfaces[#interfaces + 1] = iface
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end
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return interfaces
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end
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local INTERFACES = get_interfaces()
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local INTERFACE_PATHS = func.map(
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function(s)
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local dir = string.format('/sys/class/net/%s/statistics/', s)
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return {rx = dir..'rx_bytes', tx = dir..'tx_bytes'}
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end,
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INTERFACES
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)
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local get_bits = function(path)
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return util.read_file(path, nil, '*n') * 8
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end
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local read_interfaces = function()
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local rx = 0
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local tx = 0
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for i = 1, #INTERFACE_PATHS do
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local p = INTERFACE_PATHS[i]
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rx = rx + get_bits(p.rx)
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tx = tx + get_bits(p.tx)
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end
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return rx, tx
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end
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local init_rx_bits, init_tx_bits = read_interfaces()
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local value_format_function = function(bits)
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local unit, value = util.convert_data_val(bits)
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return util.precision_round_to_string(value, 3)..' '..unit..'b/s'
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end
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local make_plot = function(y, label, init)
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return common.make_rate_timeseries(
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geometry.CENTER_RIGHT_X,
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y,
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geometry.SECTION_WIDTH,
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PLOT_HEIGHT,
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value_format_function,
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common.converted_y_label_format_generator('b'),
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PLOT_SEC_BREAK,
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label,
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2,
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update_freq,
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init
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)
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end
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-----------------------------------------------------------------------------
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-- header
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local header = common.make_header(
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geometry.CENTER_RIGHT_X,
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geometry.TOP_Y,
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geometry.SECTION_WIDTH,
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'NETWORK'
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)
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-----------------------------------------------------------------------------
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-- download plot
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local rx = make_plot(header.bottom_y, 'Download', init_rx_bits)
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-----------------------------------------------------------------------------
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-- upload plot
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local TX_Y = header.bottom_y + PLOT_HEIGHT + PLOT_SEC_BREAK * 2
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local tx = make_plot(TX_Y, 'Upload', init_tx_bits)
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-----------------------------------------------------------------------------
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-- main drawing functions
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local update = function()
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local rx_bits, tx_bits = read_interfaces()
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common.update_rate_timeseries(rx, rx_bits)
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common.update_rate_timeseries(tx, tx_bits)
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end
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local draw_static = function(cr)
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common.draw_header(cr, header)
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common.labeled_scale_plot_draw_static(rx, cr)
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common.labeled_scale_plot_draw_static(tx, cr)
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end
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local draw_dynamic = function(cr)
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common.labeled_scale_plot_draw_dynamic(rx, cr)
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common.labeled_scale_plot_draw_dynamic(tx, cr)
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end
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return {static = draw_static, dynamic = draw_dynamic, update = update}
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end
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