polybar-dwm/include/modules/meta/event_module.hpp
2016-12-21 09:21:35 +01:00

55 lines
1.1 KiB
C++

#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() {
this->m_mainthread = thread(&event_module::runner, this);
}
protected:
void runner() {
try {
// Warm up module output and
// send broadcast before entering
// the update loop
if (CONST_MOD(Impl).running()) {
CAST_MOD(Impl)->update();
CAST_MOD(Impl)->broadcast();
}
while (CONST_MOD(Impl).running()) {
CAST_MOD(Impl)->idle();
if (!CONST_MOD(Impl).running()) {
break;
}
std::lock_guard<std::mutex> guard(this->m_updatelock);
if (!CAST_MOD(Impl)->has_event()) {
continue;
} else if (!CONST_MOD(Impl).running()) {
break;
} else if (!CAST_MOD(Impl)->update()) {
continue;
}
CAST_MOD(Impl)->broadcast();
}
} catch (const exception& err) {
CAST_MOD(Impl)->halt(err.what());
}
}
};
}
POLYBAR_NS_END