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Basic ^C interrupt implementation.

For testing, I made cat put itself into a new process group.
This should eventually be done by sh between fork() and exec().
This commit is contained in:
Andreas Kling 2018-11-02 14:06:48 +01:00
parent 621217ffeb
commit 10b666f69a
11 changed files with 94 additions and 38 deletions

View file

@ -6,15 +6,25 @@
#include <VirtualFileSystem/CharacterDevice.h>
#include "IRQHandler.h"
class KeyboardClient {
public:
virtual ~KeyboardClient();
virtual void onKeyPress(byte) = 0;
};
class KeyboardClient;
class Keyboard final : public IRQHandler, public CharacterDevice {
AK_MAKE_ETERNAL
public:
enum Modifier {
Mod_Alt = 0x01,
Mod_Ctrl = 0x02,
Mod_Shift = 0x04,
};
struct Key {
byte character { 0 };
byte modifiers { 0 };
bool alt() { return modifiers & Mod_Alt; }
bool ctrl() { return modifiers & Mod_Ctrl; }
bool shift() { return modifiers & Mod_Shift; }
};
static Keyboard& the() PURE;
virtual ~Keyboard() override;
@ -34,7 +44,12 @@ private:
void emit(byte);
KeyboardClient* m_client { nullptr };
CircularQueue<byte, 16> m_queue;
CircularQueue<Key, 16> m_queue;
byte m_modifiers { 0 };
};
class KeyboardClient {
public:
virtual ~KeyboardClient();
virtual void onKeyPress(Keyboard::Key) = 0;
};