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Backup senica-RVO4 on 16.10.2025

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Jakub Klena 2025-10-16 02:23:23 +02:00
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commit f90398ae91
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RVO4/flow/monitormemory.js Executable file
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exports.id = 'monitormemory';
exports.title = 'Memory';
exports.version = '1.0.0';
exports.author = 'Peter Širka';
exports.group = 'Monitoring';
exports.color = '#F6BB42';
exports.output = 1;
exports.click = true;
exports.icon = 'microchip';
exports.options = { interval: 8000, enabled: true };
exports.readme = `# Memory monitoring
This component monitors memory \`bytes\` consumption in Linux systems. It uses \`free\` command.
__Data Example__:
\`\`\`javascript
{
total: 33558769664,
used: 1998868480,
free: 2653708288
}
\`\`\``;
exports.html = `<div class="padding">
<div class="row">
<div class="col-md-3 m">
<div data-jc="textbox" data-jc-path="interval" data-jc-config="placeholder:10000;increment:true;type:number;required:true;maxlength:10;align:center">@(Interval in milliseconds)</div>
</div>
</div>
</div>`;
exports.install = function(instance) {
var current = { total: 0, used: 0, free: 0 };
var tproc = null;
instance.custom.run = function() {
if (tproc) {
clearTimeout(tproc);
tproc = null;
}
if (!instance.options.enabled)
return;
require('child_process').exec('free -b -t', function(err, response) {
tproc = setTimeout(instance.custom.run, instance.options.interval);
if (err) {
instance.error(err);
return;
}
var memory = response.split('\n')[1].match(/\d+/g);
current.total = memory[0].parseInt();
current.used = memory[1].parseInt() - memory[3].parseInt();
current.free = current.total - current.used;
instance.custom.status();
instance.send2(current);
});
};
instance.custom.status = function() {
if (instance.options.enabled)
instance.status(current.free.filesize() + ' / ' + current.total.filesize());
else
instance.status('Disabled', 'red');
};
instance.on('click', function() {
instance.options.enabled = !instance.options.enabled;
instance.custom.status();
instance.options.enabled && instance.custom.run();
});
instance.on('close', function() {
if (tproc) {
clearTimeout(tproc);
tproc = null;
}
});
setTimeout(instance.custom.run, 1000);
};