155 lines
4.1 KiB
Lua
155 lines
4.1 KiB
Lua
local Widget = require 'Widget'
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local Text = require 'Text'
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local Line = require 'Line'
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local ScalePlot = require 'ScalePlot'
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local util = require 'util'
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local schema = require 'default_patterns'
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local __string_gmatch = string.gmatch
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local _PLOT_SEC_BREAK_ = 20
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local _PLOT_HEIGHT_ = 56
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local network_label_function = function(bytes)
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local new_unit = util.get_unit(bytes)
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local converted = util.convert_bytes(bytes, 'B', new_unit)
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local precision = 0
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if converted < 10 then precision = 1 end
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return util.round_to_string(converted, precision)..' '..new_unit..'/s'
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end
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local header = Widget.Header{
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x = _G_INIT_DATA_.CENTER_RIGHT_X,
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y = _G_INIT_DATA_.TOP_Y,
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width = _G_INIT_DATA_.SECTION_WIDTH,
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header = 'NETWORK'
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}
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local _RIGHT_X_ = _G_INIT_DATA_.CENTER_RIGHT_X + _G_INIT_DATA_.SECTION_WIDTH
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local dnload = {
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label = Widget.Text{
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x = _G_INIT_DATA_.CENTER_RIGHT_X,
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y = header.bottom_y,
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text = 'Download',
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},
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speed = Widget.Text{
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x = _RIGHT_X_,
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y = header.bottom_y,
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x_align = 'right',
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text_color = schema.blue
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},
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plot = Widget.ScalePlot{
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x = _G_INIT_DATA_.CENTER_RIGHT_X,
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y = header.bottom_y + _PLOT_SEC_BREAK_,
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width = _G_INIT_DATA_.SECTION_WIDTH,
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height = _PLOT_HEIGHT_,
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y_label_func = network_label_function
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}
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}
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local _UPLOAD_Y_ = header.bottom_y + _PLOT_HEIGHT_ + _PLOT_SEC_BREAK_ * 2
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local upload = {
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label = Widget.Text{
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x = _G_INIT_DATA_.CENTER_RIGHT_X,
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y = _UPLOAD_Y_,
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text = 'Upload',
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},
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speed = Widget.Text{
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x = _RIGHT_X_,
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y = _UPLOAD_Y_,
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x_align = 'right',
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text_color = schema.blue
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},
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plot = Widget.ScalePlot{
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x = _G_INIT_DATA_.CENTER_RIGHT_X,
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y = _UPLOAD_Y_ + _PLOT_SEC_BREAK_,
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width = _G_INIT_DATA_.SECTION_WIDTH,
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height = _PLOT_HEIGHT_,
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y_label_func = network_label_function
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}
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}
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local interface_counters_tbl = {}
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local update = function(cr, update_frequency)
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local dspeed, uspeed = 0, 0
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local rx_delta, tx_delta
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-- iterate through the route file and filter on interfaces that are gateways (flag = 0003)
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local iterator = __string_gmatch(util.read_file('/proc/net/route'),
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'(%w+)%s+%w+%s+%w+%s+0003%s+')
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for interface in iterator do
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local interface_counters = interface_counters_tbl[interface]
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if not interface_counters then
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local rx_path = '/sys/class/net/'..interface..'/statistics/rx_bytes'
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local tx_path = '/sys/class/net/'..interface..'/statistics/tx_bytes'
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interface_counters = {
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rx_path = rx_path,
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tx_path = tx_path,
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prev_rx_byte_cnt = util.read_file(rx_path, nil, '*n'),
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prev_tx_byte_cnt = util.read_file(tx_path, nil, '*n'),
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}
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interface_counters_tbl[interface] = interface_counters
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end
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local rx_byte_cnt = util.read_file(interface_counters.rx_path, nil, '*n')
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local tx_byte_cnt = util.read_file(interface_counters.tx_path, nil, '*n')
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rx_delta = rx_byte_cnt - interface_counters.prev_rx_byte_cnt
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tx_delta = tx_byte_cnt - interface_counters.prev_tx_byte_cnt
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interface_counters.prev_rx_byte_cnt = rx_byte_cnt
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interface_counters.prev_tx_byte_cnt = tx_byte_cnt
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-- mask overflow
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if rx_delta > 0 then dspeed = dspeed + rx_delta * update_frequency end
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if tx_delta > 0 then uspeed = uspeed + tx_delta * update_frequency end
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end
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local dspeed_unit = util.get_unit(dspeed)
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local uspeed_unit = util.get_unit(uspeed)
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dnload.speed.append_end = ' '..dspeed_unit..'/s'
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upload.speed.append_end = ' '..uspeed_unit..'/s'
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Text.set(dnload.speed, cr, util.precision_convert_bytes(dspeed, 'B', dspeed_unit, 3))
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Text.set(upload.speed, cr, util.precision_convert_bytes(uspeed, 'B', uspeed_unit, 3))
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ScalePlot.update(dnload.plot, cr, dspeed)
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ScalePlot.update(upload.plot, cr, uspeed)
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end
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Widget = nil
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schema = nil
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_PLOT_SEC_BREAK_ = nil
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_PLOT_HEIGHT_ = nil
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_RIGHT_X_ = nil
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_UPLOAD_Y_ = nil
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local draw = function(cr, current_interface, update_frequency)
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update(cr, update_frequency)
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if current_interface == 0 then
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Text.draw(header.text, cr)
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Line.draw(header.underline, cr)
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Text.draw(dnload.label, cr)
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Text.draw(dnload.speed, cr)
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ScalePlot.draw(dnload.plot, cr)
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Text.draw(upload.label, cr)
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Text.draw(upload.speed, cr)
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ScalePlot.draw(upload.plot, cr)
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end
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end
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return draw
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