80 lines
2.2 KiB
Lua
80 lines
2.2 KiB
Lua
local format = require 'format'
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local pure = require 'pure'
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local i_o = require 'i_o'
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local sys = require 'sys'
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return function(update_freq, common, width, point)
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local PLOT_SEC_BREAK = 20
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local PLOT_HEIGHT = 56
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local INTERFACE_PATHS = sys.get_net_interface_paths()
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local get_bits = function(path)
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return i_o.read_file(path, nil, '*n') * 8
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end
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local state = {rx_bits = 0, tx_bits = 0}
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local read_interfaces = function()
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state.rx_bits = 0
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state.tx_bits = 0
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for i = 1, #INTERFACE_PATHS do
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local p = INTERFACE_PATHS[i]
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state.rx_bits = state.rx_bits + get_bits(p.rx)
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state.tx_bits = state.tx_bits + get_bits(p.tx)
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end
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return state
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end
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-- prime initial state
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read_interfaces()
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local value_format_function = function(bits)
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local unit, value = format.convert_data_val(bits)
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return format.precision_round_to_string(value, 3)..' '..unit..'b/s'
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end
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-----------------------------------------------------------------------------
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-- down/up plots
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local mk_plot = function(label, key, y)
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local obj = common.make_rate_timeseries(
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point.x,
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y,
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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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state[key]
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)
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return common.mk_acc(
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width,
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PLOT_HEIGHT + PLOT_SEC_BREAK,
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function(s) common.update_rate_timeseries(obj, s[key]) end,
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pure.partial(common.tagged_scaled_timeseries_draw_static, obj),
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pure.partial(common.tagged_scaled_timeseries_draw_dynamic, obj)
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)
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end
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local mk_rx = pure.partial(mk_plot, 'Download', 'rx_bits')
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local mk_tx = pure.partial(mk_plot, 'Upload', 'tx_bits')
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-----------------------------------------------------------------------------
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-- main drawing functions
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local rbs = common.compile_module(
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'NETWORK',
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point,
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width,
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{
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{mk_rx, true, PLOT_SEC_BREAK},
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{mk_tx, true, 0},
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}
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)
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return pure.map_at("update", function(f) return function(_) f(read_interfaces()) end end, rbs)
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end
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