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#pragma once
#include "modules/meta/base.hpp"
POLYBAR_NS
namespace modules {
template <class Impl>
class event_module : public module<Impl> {
public:
using module<Impl>::module;
void start() override {
this->module<Impl>::start();
this->m_mainthread = thread(&event_module::runner, this);
}
protected:
void runner() {
this->m_log.trace("%s: Thread id = %i", this->name(), concurrency_util::thread_id(this_thread::get_id()));
try {
// warm up module output before entering the loop
std::unique_lock<std::mutex> guard(this->m_updatelock);
CAST_MOD(Impl)->update();
CAST_MOD(Impl)->broadcast();
guard.unlock();
const auto check = [&]() -> bool {
std::lock_guard<std::mutex> guard(this->m_updatelock);
return CAST_MOD(Impl)->has_event() && CAST_MOD(Impl)->update();
};
while (this->running()) {
if (check()) {
CAST_MOD(Impl)->broadcast();
}
CAST_MOD(Impl)->idle();
}
} catch (const exception& err) {
CAST_MOD(Impl)->halt(err.what());
}
}
};
} // namespace modules
POLYBAR_NS_END
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