Kernel: Start work on abstracting Timers

kernel/include/kernel/Debug.h

@@ -1,15 +1,14 @@
 #pragma once
 
 #include <BAN/Formatter.h>
-#include <kernel/PIT.h>
 
-#define dprintln(...)																																\
-	do {																																			\
-		Debug::DebugLock::lock();																													\
-		BAN::Formatter::print(Debug::putchar, "[{5}.{3}] {}:{}:  ", PIT::ms_since_boot() / 1000, PIT::ms_since_boot() % 1000, __FILE__, __LINE__);	\
-		BAN::Formatter::print(Debug::putchar, __VA_ARGS__);																							\
-		BAN::Formatter::print(Debug::putchar, "\r\n");																								\
-		Debug::DebugLock::unlock();																													\
+#define dprintln(...)										\
+	do {													\
+		Debug::DebugLock::lock();							\
+		Debug::print_prefix(__FILE__, __LINE__);				\
+		BAN::Formatter::print(Debug::putchar, __VA_ARGS__);	\
+		BAN::Formatter::print(Debug::putchar, "\r\n");		\
+		Debug::DebugLock::unlock();							\
 	} while(false)
 
 #define dwarnln(...)										\
@@ -36,6 +35,7 @@ namespace Debug
 {
 	void dump_stack_trace();
 	void putchar(char);
+	void print_prefix(const char*, int);
 
 	class DebugLock
 	{

kernel/include/kernel/PIT.h

@@ -1,14 +0,0 @@
-#pragma once
-
-#include <stdint.h>
-
-#define PIT_IRQ 0
-
-namespace PIT
-{
-
-	uint64_t ms_since_boot();
-	void initialize();
-	void sleep(uint64_t);
-
-}

kernel/include/kernel/Timer/PIT.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <kernel/Timer/Timer.h>
+#include <stdint.h>
+
+#define PIT_IRQ 0
+
+namespace Kernel
+{
+
+	class PIT final : public Timer
+	{
+	public:
+		static BAN::ErrorOr<BAN::UniqPtr<PIT>> create();
+
+		virtual uint64_t ms_since_boot() const override;
+		virtual void sleep(uint64_t) const override;
+
+	private:
+		void initialize();
+	};
+
+}

kernel/include/kernel/Timer/Timer.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <BAN/UniqPtr.h>
+#include <BAN/Vector.h>
+
+namespace Kernel
+{
+
+	class Timer
+	{
+	public:
+		virtual ~Timer() {};
+		virtual uint64_t ms_since_boot() const = 0;
+		virtual void sleep(uint64_t) const = 0;
+	};
+
+	class TimerHandler
+	{
+	public:
+		static void initialize();
+		static TimerHandler& get();
+		static bool is_initialized();
+
+		uint64_t ms_since_boot() const;
+		void sleep(uint64_t) const;
+
+	private:
+		TimerHandler() = default;
+
+		void initialize_timers();
+
+	private:
+		BAN::Vector<BAN::UniqPtr<Timer>> m_timers;
+	};
+
+}