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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().
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11 changed files with 94 additions and 38 deletions
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@ -6,15 +6,25 @@
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#include <VirtualFileSystem/CharacterDevice.h>
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#include "IRQHandler.h"
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class KeyboardClient {
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public:
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virtual ~KeyboardClient();
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virtual void onKeyPress(byte) = 0;
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};
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class KeyboardClient;
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class Keyboard final : public IRQHandler, public CharacterDevice {
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AK_MAKE_ETERNAL
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public:
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enum Modifier {
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Mod_Alt = 0x01,
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Mod_Ctrl = 0x02,
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Mod_Shift = 0x04,
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};
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struct Key {
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byte character { 0 };
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byte modifiers { 0 };
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bool alt() { return modifiers & Mod_Alt; }
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bool ctrl() { return modifiers & Mod_Ctrl; }
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bool shift() { return modifiers & Mod_Shift; }
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};
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static Keyboard& the() PURE;
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virtual ~Keyboard() override;
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@ -34,7 +44,12 @@ private:
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void emit(byte);
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KeyboardClient* m_client { nullptr };
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CircularQueue<byte, 16> m_queue;
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CircularQueue<Key, 16> m_queue;
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byte m_modifiers { 0 };
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};
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class KeyboardClient {
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public:
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virtual ~KeyboardClient();
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virtual void onKeyPress(Keyboard::Key) = 0;
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};
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