ladybird/Kernel/Console.h
Andreas Kling b0e3f73375 Start refactoring the windowing system to use an event loop.
Userspace programs can now open /dev/gui_events and read a stream of GUI_Event
structs one at a time.

I was stuck on a stupid problem where we'd reenter Scheduler::yield() due to
having one of the has_data_available_for_reading() implementations using locks.
2019-01-14 14:42:49 +01:00

33 lines
803 B
C++

#pragma once
#include <AK/Compiler.h>
#include <AK/Vector.h>
#include <VirtualFileSystem/CharacterDevice.h>
class ConsoleImplementation {
public:
virtual ~ConsoleImplementation();
virtual void on_sysconsole_receive(byte) = 0;
};
class Console final : public CharacterDevice {
AK_MAKE_ETERNAL
public:
static Console& the() PURE;
Console();
virtual ~Console() override;
virtual bool has_data_available_for_reading(Process&) const override;
virtual ssize_t read(byte* buffer, size_t size) override;
virtual ssize_t write(const byte* data, size_t size) override;
void setImplementation(ConsoleImplementation* implementation) { m_implementation = implementation; }
void put_char(char);
private:
ConsoleImplementation* m_implementation { nullptr };
};