Kernel: MS-1: Microkernel and bootloader.

Signed-off-by: Amlal El Mahrouss <amlalelmahrouss@icloud.com>

3 files changed, 42 insertions, 24 deletions

diff --git a/Private/KernelKit/DeviceManager.hpp b/Private/KernelKit/DeviceManager.hpp
index 9a689b26..582d1194 100644
--- a/Private/KernelKit/DeviceManager.hpp
+++ b/Private/KernelKit/DeviceManager.hpp
@@ -24,6 +24,8 @@
 #include <NewKit/ErrorOr.hpp>
 #include <NewKit/Ref.hpp>
 
+#include "NewKit/KernelCheck.hpp"
+
 namespace HCore {
 template <typename T>
 class DeviceInterface;
@@ -61,10 +63,18 @@ class DeviceInterface {
   void (*m_In)(T Data);
 };
 
+///
+///
+/// @brief Input Output Buffer
+/// Used mainly to communicate between hardware.
+///
 template <typename T>
 class IOBuf final {
  public:
-  explicit IOBuf(T Dat) : m_Data(Dat) {}
+  explicit IOBuf(T Dat) : m_Data(Dat) {
+    // at least pass something valid when instancating this struct.
+    MUST_PASS(Dat);
+  }
 
   IOBuf &operator=(const IOBuf<T> &) = default;
   IOBuf(const IOBuf<T> &) = default;
@@ -72,8 +82,15 @@ class IOBuf final {
   ~IOBuf() = default;
 
  public:
-  T operator->() const { return m_Data; }
-  T &operator[](Size index) const { return m_Data[index]; }
+  template <typename R>
+  R operator->() const {
+    return m_Data;
+  }
+
+  template <typename R>
+  R &operator[](Size index) const {
+    return m_Data[index];
+  }
 
  private:
   T m_Data;
diff --git a/Private/KernelKit/HError.hpp b/Private/KernelKit/HError.hpp
index 0d412154..247608f9 100644
--- a/Private/KernelKit/HError.hpp
+++ b/Private/KernelKit/HError.hpp
@@ -31,5 +31,8 @@ inline constexpr HError kErrorHeapOutOfMemory = 44;
 Boolean ke_bug_check(void) noexcept;
 }  // namespace HCore
 
-#define KernIsOk(HERR) (HERR == HCore::kErrorSuccess)
-#define KernHasFailed(HERR) (HERR != HCore::kErrorSuccess)
+#define IsOk(HERR) (HERR == HCore::kErrorSuccess)
+#define HasFailed(HERR) (HERR != HCore::kErrorSuccess)
+#define GetLastError() LastError
+
+inline HCore::HError LastError = 0;
diff --git a/Private/KernelKit/Loader.hpp b/Private/KernelKit/Loader.hpp
index a293e2e4..36da444f 100644
--- a/Private/KernelKit/Loader.hpp
+++ b/Private/KernelKit/Loader.hpp
@@ -9,26 +9,24 @@
 
 #pragma once
 
-#include <NewKit/ErrorOr.hpp>
-#include <NewKit/Defines.hpp>
 #include <CompilerKit/CompilerKit.hpp>
+#include <NewKit/Defines.hpp>
+#include <NewKit/ErrorOr.hpp>
 
-namespace HCore
-{
-    class Loader
-    {
-    public:
-        Loader() = default;
-        virtual ~Loader() = default;
-
-        HCORE_COPY_DEFAULT(Loader);
+namespace HCore {
+/// This interface is used to make loader contracts (MSCOFF, PEF).
+class Loader {
+ public:
+  Loader() = default;
+  virtual ~Loader() = default;
 
-    public:
-        virtual const char* Format() = 0;
-        virtual const char* MIME() = 0;
-		virtual const char* Path() = 0;
-        virtual ErrorOr<VoidPtr> LoadStart() = 0;
-        virtual VoidPtr FindSymbol(const char* name, Int32 kind) = 0;
+  HCORE_COPY_DEFAULT(Loader);
 
-    };
-}
+ public:
+  virtual const char* Format() = 0;
+  virtual const char* MIME() = 0;
+  virtual const char* Path() = 0;
+  virtual ErrorOr<VoidPtr> LoadStart() = 0;
+  virtual VoidPtr FindSymbol(const char* name, Int32 kind) = 0;
+};
+}  // namespace HCore