118 lines
2.4 KiB
C++
118 lines
2.4 KiB
C++
/*
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* \brief Mixer frontend
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* \author Josef Soentgen
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* \date 2015-10-15
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*/
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/* Genode includes */
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#include <base/printf.h>
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#include <base/thread.h>
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#include <os/attached_rom_dataspace.h>
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/* Qt includes */
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#include <QApplication>
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#include <QDebug>
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#include <QFile>
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/* application includes */
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#include "main_window.h"
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enum { THREAD_STACK_SIZE = 2 * 1024 * sizeof(long) };
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struct Report_thread : Genode::Thread<THREAD_STACK_SIZE>
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{
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QMember<Report_proxy> proxy;
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Genode::Attached_rom_dataspace channels_rom { "channel_list" };
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Genode::Signal_receiver sig_rec;
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Genode::Signal_dispatcher<Report_thread> channels_dispatcher;
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Genode::Lock _report_lock { Genode::Lock::LOCKED };
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void _report(char const *data, size_t size)
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{
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Genode::Xml_node node(data, size);
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proxy->report_changed(&_report_lock, &node);
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/* wait until the report was handled */
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_report_lock.lock();
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}
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void _handle_channels(unsigned)
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{
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channels_rom.update();
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if (channels_rom.is_valid())
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_report(channels_rom.local_addr<char>(), channels_rom.size());
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}
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Report_thread()
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:
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Genode::Thread<THREAD_STACK_SIZE>("report_thread"),
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channels_dispatcher(sig_rec, *this, &Report_thread::_handle_channels)
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{
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channels_rom.sigh(channels_dispatcher);
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}
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void entry() override
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{
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using namespace Genode;
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while (true) {
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Signal sig = sig_rec.wait_for_signal();
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int num = sig.num();
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Signal_dispatcher_base *dispatcher;
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dispatcher = dynamic_cast<Signal_dispatcher_base *>(sig.context());
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dispatcher->dispatch(num);
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}
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}
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void connect_window(Main_window *win)
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{
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QObject::connect(proxy, SIGNAL(report_changed(void *,void const*)),
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win, SLOT(report_changed(void *, void const*)),
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Qt::QueuedConnection);
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}
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};
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static inline void load_stylesheet()
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{
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QFile file(":style.qss");
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if (!file.open(QFile::ReadOnly)) {
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qWarning() << "Warning:" << file.errorString()
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<< "opening file" << file.fileName();
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return;
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}
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qApp->setStyleSheet(QLatin1String(file.readAll()));
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}
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int main(int argc, char *argv[])
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{
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Report_thread *report_thread;
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try { report_thread = new Report_thread(); }
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catch (...) {
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PERR("Could not create Report_thread");
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return -1;
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}
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QApplication app(argc, argv);
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load_stylesheet();
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QMember<Main_window> main_window;
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main_window->show();
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report_thread->connect_window(main_window);
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report_thread->start();
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app.connect(&app, SIGNAL(lastWindowClosed()), SLOT(quit()));
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return app.exec();
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}
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