mirror of https://github.com/polybar/polybar.git
97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
POLYBAR_NS
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namespace modules {
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// public {{{
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template <class Impl>
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void inotify_module<Impl>::start() {
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CAST_MOD(Impl)->m_mainthread = thread(&inotify_module::runner, this);
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}
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// }}}
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// protected {{{
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template <class Impl>
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void inotify_module<Impl>::runner() {
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try {
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// Send initial broadcast to warmup cache
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if (CONST_MOD(Impl).running()) {
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CAST_MOD(Impl)->on_event(nullptr);
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CAST_MOD(Impl)->broadcast();
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}
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while (CONST_MOD(Impl).running()) {
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CAST_MOD(Impl)->poll_events();
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}
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} catch (const module_error& err) {
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CAST_MOD(Impl)->halt(err.what());
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} catch (const std::exception& err) {
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CAST_MOD(Impl)->halt(err.what());
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}
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}
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template <class Impl>
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void inotify_module<Impl>::watch(string path, int mask) {
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this->m_log.trace("%s: Attach inotify at %s", CONST_MOD(Impl).name(), path);
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m_watchlist.insert(make_pair(path, mask));
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}
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template <class Impl>
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void inotify_module<Impl>::idle() {
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CAST_MOD(Impl)->sleep(200ms);
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}
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template <class Impl>
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void inotify_module<Impl>::poll_events() {
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vector<inotify_util::watch_t> watches;
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try {
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for (auto&& w : m_watchlist) {
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watches.emplace_back(inotify_util::make_watch(w.first));
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watches.back()->attach(w.second);
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}
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} catch (const system_error& e) {
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watches.clear();
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this->m_log.err("%s: Error while creating inotify watch (what: %s)", CONST_MOD(Impl).name(), e.what());
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CAST_MOD(Impl)->sleep(0.1s);
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return;
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}
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while (CONST_MOD(Impl).running()) {
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std::unique_lock<concurrency_util::spin_lock> guard(this->m_lock);
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{
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for (auto&& w : watches) {
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this->m_log.trace_x("%s: Poll inotify watch %s", CONST_MOD(Impl).name(), w->path());
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if (w->poll(1000 / watches.size())) {
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auto event = w->get_event();
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for (auto&& w : watches) {
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try {
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w->remove();
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} catch (const system_error&) {
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}
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}
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if (CAST_MOD(Impl)->on_event(event.get()))
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CAST_MOD(Impl)->broadcast();
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CAST_MOD(Impl)->idle();
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return;
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}
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if (!CONST_MOD(Impl).running())
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break;
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}
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}
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guard.unlock();
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CAST_MOD(Impl)->idle();
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}
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}
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// }}}
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}
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POLYBAR_NS_END
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