waybar/src/modules/memory.cpp

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#include "modules/memory.hpp"
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waybar::modules::Memory::Memory(const Json::Value& config)
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: ALabel(config, "{}%")
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{
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label_.set_name("memory");
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uint32_t interval = config_["interval"].isUInt() ? config_["interval"].asUInt() : 30;
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thread_ = [this, interval] {
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dp.emit();
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thread_.sleep_for(chrono::seconds(interval));
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};
}
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auto waybar::modules::Memory::update() -> void
{
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struct sysinfo info = {};
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if (sysinfo(&info) == 0) {
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auto total = info.totalram * info.mem_unit;
auto freeram = info.freeram * info.mem_unit;
int used_ram_percentage = 100 * (total - freeram) / total;
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label_.set_text(fmt::format(format_, used_ram_percentage));
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auto used_ram_gigabytes = (total - freeram) / std::pow(1024, 3);
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label_.set_tooltip_text(fmt::format("{:.{}f}Gb used", used_ram_gigabytes, 1));
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}
}