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/* -------------------------------------------
Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
------------------------------------------- */
#pragma once
#include <NeKit/Macros.h>
#define NEKIT_VERSION_STR "0.0.1"
#define NEKIT_VERSION_BCD 0x0001
#ifndef __cplusplus
#error !!! Kernel compiles only with a C++ compiler. !!!
#endif
#if __cplusplus <= 201703L
#define char8_t char
#endif
#ifdef __has_feature
#if !__has_feature(cxx_nullptr)
#if !__has_nullptr
#error !!! You must at least have nullptr featured on your C++ compiler. !!!
#endif
#endif
#endif
/// @brief The **Kernel** namespace.
namespace Kernel {
using voidPtr = void*;
using VoidPtr = void*;
using nullPtr = decltype(nullptr);
using NullPtr = decltype(nullptr);
using Int = int;
using Int32 = __INT32_TYPE__;
using UShort = __UINT16_TYPE__;
using UInt16 = __UINT16_TYPE__;
using Short = short;
using Int16 = __INT16_TYPE__;
using UInt = __UINT32_TYPE__;
using UInt32 = __UINT32_TYPE__;
using Long = __INT64_TYPE__;
using Int64 = __INT64_TYPE__;
using ULong = __UINT64_TYPE__;
using UInt64 = __UINT64_TYPE__;
using Boolean = bool;
using Bool = bool;
using Char = char;
using Int8 = __INT8_TYPE__;
using Char8 = char8_t;
using UChar = __UINT8_TYPE__;
using UInt8 = __UINT8_TYPE__;
using SSize = long;
using SSizeT = long;
using Size = __SIZE_TYPE__;
using SizeT = __SIZE_TYPE__;
using IntPtr = __INTPTR_TYPE__;
using UIntPtr = __UINTPTR_TYPE__;
using IntFast = __INT_FAST32_TYPE__;
using IntFast64 = __INT_FAST64_TYPE__;
using PtrDiff = __PTRDIFF_TYPE__;
using SInt16 = Int16;
using SInt32 = Int32;
using SInt64 = Int64;
typedef UIntPtr* Ptr64;
typedef UInt32* Ptr32;
typedef UInt8* Ptr8;
using Utf8Char = char8_t;
using Utf16Char = char16_t;
using WideChar = wchar_t;
using Utf32Char = char32_t;
using LongDouble = long double;
using Double = double;
using Float = float;
typedef UInt32 PhysicalAddressKind;
typedef UIntPtr VirtualAddressKind;
using Void = void;
using Any = void*;
using Lba = UInt64;
using Char16 = char16_t;
enum class Endian : UInt8 { kEndianInvalid, kEndianBig, kEndianLittle, kEndianMixed, kEndianCount };
/// @brief Forward object.
/// @tparam Args the object type.
/// @param arg the object.
/// @return object's rvalue
template <typename Args>
inline Args&& forward(Args& arg) {
return static_cast<Args&&>(arg);
}
/// @brief Move object.
/// @tparam Args the object type.
/// @param arg the object.
/// @return object's rvalue
template <typename Args>
inline Args&& move(Args&& arg) {
return static_cast<Args&&>(arg);
}
/// @brief Encoding interface, used as a proxy to convert T to Char*
/// Used to cast A to B or B to A.
class ICodec {
public:
explicit ICodec() = default;
virtual ~ICodec() = default;
ICodec& operator=(const ICodec&) = default;
ICodec(const ICodec&) = default;
public:
/// @brief Convert type to bytes.
/// @tparam T the type.
/// @param type (a1) the data.
/// @return a1 as Char*
template <typename T>
const Char* AsBytes(T type) noexcept {
NE_UNUSED(type);
return nullptr;
}
/// @brief Construct from type to class.
/// @tparam T the type to convert.
/// @param type (a1) the data.
/// @return a1 as Char*
template <typename OutputClass, typename FactoryClass>
OutputClass* Construct(Char* type) noexcept {
FactoryClass class_fac;
return class_fac.template From<OutputClass>(type);
}
/// @brief Convert T class to Y class.
/// @tparam T the class type of type.
/// @tparam Y the result class.
/// @param type the class to cast.
/// @return the class as Y.
template <typename T, typename Y>
Y As(T type) noexcept {
if (type.template IsSerializable()) {
return reinterpret_cast<Char*>(type);
}
return type.template As<Y>();
}
};
/// \brief Scheduler interface, represents a scheduler object.
/// @note This is used to schedule tasks, such as threads, drivers, user threads, etc.
class ISchedulable {
public:
explicit ISchedulable() = default;
virtual ~ISchedulable() = default;
ISchedulable& operator=(const ISchedulable&) = default;
ISchedulable(const ISchedulable&) = default;
/// @brief Is this object only accepting user tasks?
virtual Bool IsUser() { return NO; }
/// @brief Is this object only accepting kernel tasks?
virtual Bool IsKernel() { return NO; }
/// @brief Is this object offloading to another CPU?
virtual Bool HasMP() { return NO; }
};
} // namespace Kernel
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