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pragma Singleton
import qs.config
import Quickshell
import Quickshell.Io
import Caelestia.Internal
import QtQuick
Singleton {
id: root
property int refCount: 0
// Current speeds in bytes per second
readonly property real downloadSpeed: _downloadSpeed
readonly property real uploadSpeed: _uploadSpeed
// Total bytes transferred since tracking started
readonly property real downloadTotal: _downloadTotal
readonly property real uploadTotal: _uploadTotal
// History buffers for sparkline
readonly property CircularBuffer downloadBuffer: _downloadBuffer
readonly property CircularBuffer uploadBuffer: _uploadBuffer
readonly property int historyLength: 30
// Private properties
property real _downloadSpeed: 0
property real _uploadSpeed: 0
property real _downloadTotal: 0
property real _uploadTotal: 0
// Previous readings for calculating speed
property real _prevRxBytes: 0
property real _prevTxBytes: 0
property real _prevTimestamp: 0
// Initial readings for calculating totals
property real _initialRxBytes: 0
property real _initialTxBytes: 0
property bool _initialized: false
function formatBytes(bytes: real): var {
// Handle negative or invalid values
if (bytes < 0 || isNaN(bytes) || !isFinite(bytes)) {
return {
value: 0,
unit: "B/s"
};
}
if (bytes < 1024) {
return {
value: bytes,
unit: "B/s"
};
} else if (bytes < 1024 * 1024) {
return {
value: bytes / 1024,
unit: "KB/s"
};
} else if (bytes < 1024 * 1024 * 1024) {
return {
value: bytes / (1024 * 1024),
unit: "MB/s"
};
} else {
return {
value: bytes / (1024 * 1024 * 1024),
unit: "GB/s"
};
}
}
function formatBytesTotal(bytes: real): var {
// Handle negative or invalid values
if (bytes < 0 || isNaN(bytes) || !isFinite(bytes)) {
return {
value: 0,
unit: "B"
};
}
if (bytes < 1024) {
return {
value: bytes,
unit: "B"
};
} else if (bytes < 1024 * 1024) {
return {
value: bytes / 1024,
unit: "KB"
};
} else if (bytes < 1024 * 1024 * 1024) {
return {
value: bytes / (1024 * 1024),
unit: "MB"
};
} else {
return {
value: bytes / (1024 * 1024 * 1024),
unit: "GB"
};
}
}
function parseNetDev(content: string): var {
const lines = content.split("\n");
let totalRx = 0;
let totalTx = 0;
for (let i = 2; i < lines.length; i++) {
const line = lines[i].trim();
if (!line)
continue;
const parts = line.split(/\s+/);
if (parts.length < 10)
continue;
const iface = parts[0].replace(":", "");
// Skip loopback interface
if (iface === "lo")
continue;
const rxBytes = parseFloat(parts[1]) || 0;
const txBytes = parseFloat(parts[9]) || 0;
totalRx += rxBytes;
totalTx += txBytes;
}
return {
rx: totalRx,
tx: totalTx
};
}
CircularBuffer {
id: _downloadBuffer
capacity: root.historyLength + 1
}
CircularBuffer {
id: _uploadBuffer
capacity: root.historyLength + 1
}
FileView {
id: netDevFile
path: "/proc/net/dev"
}
Timer {
interval: Config.dashboard.resourceUpdateInterval
running: root.refCount > 0
repeat: true
triggeredOnStart: true
onTriggered: {
netDevFile.reload();
const content = netDevFile.text();
if (!content)
return;
const data = root.parseNetDev(content);
const now = Date.now();
if (!root._initialized) {
root._initialRxBytes = data.rx;
root._initialTxBytes = data.tx;
root._prevRxBytes = data.rx;
root._prevTxBytes = data.tx;
root._prevTimestamp = now;
root._initialized = true;
return;
}
const timeDelta = (now - root._prevTimestamp) / 1000; // seconds
if (timeDelta > 0) {
// Calculate byte deltas
let rxDelta = data.rx - root._prevRxBytes;
let txDelta = data.tx - root._prevTxBytes;
// Handle counter overflow (when counters wrap around from max to 0)
// This happens when counters exceed 32-bit or 64-bit limits
if (rxDelta < 0) {
// Counter wrapped around - assume 64-bit counter
rxDelta += Math.pow(2, 64);
}
if (txDelta < 0) {
txDelta += Math.pow(2, 64);
}
// Calculate speeds
root._downloadSpeed = rxDelta / timeDelta;
root._uploadSpeed = txDelta / timeDelta;
if (root._downloadSpeed >= 0 && isFinite(root._downloadSpeed))
_downloadBuffer.push(root._downloadSpeed);
if (root._uploadSpeed >= 0 && isFinite(root._uploadSpeed))
_uploadBuffer.push(root._uploadSpeed);
}
// Calculate totals with overflow handling
let downTotal = data.rx - root._initialRxBytes;
let upTotal = data.tx - root._initialTxBytes;
// Handle counter overflow for totals
if (downTotal < 0) {
downTotal += Math.pow(2, 64);
}
if (upTotal < 0) {
upTotal += Math.pow(2, 64);
}
root._downloadTotal = downTotal;
root._uploadTotal = upTotal;
root._prevRxBytes = data.rx;
root._prevTxBytes = data.tx;
root._prevTimestamp = now;
}
}
}
|
