christoph/lecture-operating-system-development
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add lock to keyboard demo

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This commit is contained in:
Christoph Urlacher
2022-07-19 00:01:24 +02:00
parent 3d76162d8a
commit e9b24d06be
2 changed files with 8 additions and 0 deletions
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7
c_os/user/demo/KeyboardDemo.cc
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@ -16,10 +16,17 @@ void KeyboardDemo::run() {
kout << "Keyboard Demo: " << endl; kout << "Keyboard Demo: " << endl;
kout.lock();
kout.clear();
kout << "Info: Die Keyboard Demo sperrt den Output Stream:\n"
<< " Wenn die Preemption Demo laeuft wird diese also erst\n"
<< " fortfahren wenn die Keyboard Demo wieder beendet ist." << endl;
while (true) { while (true) {
kout << listener.waitForKeyEvent(); kout << listener.waitForKeyEvent();
kout.flush(); kout.flush();
} }
kout.unlock();
scheduler.exit(); scheduler.exit();
} }

1
c_os/user/demo/KeyboardDemo.h
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@ -31,6 +31,7 @@ public:
~KeyboardDemo() override { ~KeyboardDemo() override {
log << INFO << "Uninitialized KeyboardDemo" << endl; log << INFO << "Uninitialized KeyboardDemo" << endl;
kevman.unsubscribe(this->listener); kevman.unsubscribe(this->listener);
kout.unlock();
} }
void run() override; void run() override;