54 lines
2.4 KiB
QML
54 lines
2.4 KiB
QML
import QtQuick
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import Quickshell
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import Quickshell.Io
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// Lightweight system monitor using standard Linux interfaces.
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// Provides cpu usage %, cpu temperature (°C), and memory usage %.
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// No external helpers; uses /proc and /sys via a shell loop.
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Item {
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id: root
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// Public values
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property real cpuUsage: 0
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property real cpuTemp: 0
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property real memoryUsagePer: 0
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property real diskUsage: 0
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// Interval in seconds between updates
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property int intervalSeconds: 1
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// Background process emitting one JSON line per sample
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Process {
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id: reader
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running: true
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command: ["sh", "-c", // Outputs: {"cpu":<int>,"memper":<int>,"cputemp":<int>}
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"interval=" + intervalSeconds + "; " + "while true; do " + // First /proc/stat snapshot
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"read _ u1 n1 s1 id1 iw1 ir1 si1 st1 gs1 < /proc/stat; "
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+ "t1=$((u1+n1+s1+id1+iw1+ir1+si1+st1)); i1=$((id1+iw1)); " + "sleep $interval; " + // Second /proc/stat snapshot
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"read _ u2 n2 s2 id2 iw2 ir2 si2 st2 gs2 < /proc/stat; " + "t2=$((u2+n2+s2+id2+iw2+ir2+si2+st2)); i2=$((id2+iw2)); "
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+ "dt=$((t2 - t1)); di=$((i2 - i1)); " + "cpu=$(( (100*(dt - di)) / (dt>0?dt:1) )); " + // Memory percent via /proc/meminfo (kB)
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"mt=$(awk '/MemTotal/ {print $2}' /proc/meminfo); " + "ma=$(awk '/MemAvailable/ {print $2}' /proc/meminfo); "
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+ "mm=$((mt - ma)); mp=$(( (100*mm) / (mt>0?mt:1) )); " + // Temperature: scan hwmon and thermal zones, choose max; convert m°C → °C
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"ct=0; " + "for f in /sys/class/hwmon/hwmon*/temp*_input /sys/class/thermal/thermal_zone*/temp; do "
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+ "[ -r \"$f\" ] || continue; v=$(cat \"$f\" 2>/dev/null); " + "[ -z \"$v\" ] && continue; "
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+ "if [ \"$v\" -gt 1000 ] 2>/dev/null; then v=$((v/1000)); fi; " + "[ \"$v\" -gt \"$ct\" ] 2>/dev/null && ct=$v; "
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+ "done; " + // Disk usage percent for root filesystem
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"dp=$(df -P / 2>/dev/null | awk 'NR==2{gsub(/%/,\"\",$5); print $5}'); " + "[ -z \"$dp\" ] && dp=0; " + // Emit JSON line
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"echo \"{\\\"cpu\\\":$cpu,\\\"memper\\\":$mp,\\\"cputemp\\\":$ct,\\\"diskper\\\":$dp}\"; " + "done"]
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stdout: SplitParser {
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onRead: function (line) {
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try {
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const data = JSON.parse(line)
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root.cpuUsage = +data.cpu
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root.cpuTemp = +data.cputemp
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root.memoryUsagePer = +data.memper
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root.diskUsage = +data.diskper
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} catch (e) {
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// ignore malformed lines
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}
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}
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}
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}
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}
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