ADD: Open version, with important changes kept out.

Signed-off-by: Amlal <amlal.elmahrouss@icloud.com>

1 files changed, 219 insertions, 0 deletions

diff --git a/dev/Kernel/src/Utils.cc b/dev/Kernel/src/Utils.cc
new file mode 100644
index 00000000..c5a82305
--- /dev/null
+++ b/dev/Kernel/src/Utils.cc
@@ -0,0 +1,219 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <NewKit/Utils.h>
+
+namespace Kernel
+{
+	Int32 rt_string_cmp(const Char* src, const Char* cmp, Size size)
+	{
+		Int32 counter = 0;
+
+		for (Size index = 0; index < size; ++index)
+		{
+			if (src[index] != cmp[index])
+				++counter;
+		}
+
+		return counter;
+	}
+
+	Void rt_zero_memory(voidPtr pointer, Size len)
+	{
+		rt_set_memory(pointer, 0, len);
+	}
+
+	SizeT rt_string_len(const Char* str, SizeT _len)
+	{
+		SizeT len{0};
+
+		do
+		{
+			if (len > _len)
+			{
+				return _len;
+			}
+
+			++len;
+		} while (str[len] != '\0');
+
+		return len;
+	}
+
+	Size rt_string_len(const Char* ptr)
+	{
+		SizeT cnt{0};
+
+		while (ptr[cnt] != 0)
+			++cnt;
+
+		return cnt;
+	}
+
+	voidPtr rt_set_memory(voidPtr src, UInt32 value, Size len)
+	{
+		UInt32* start = reinterpret_cast<UInt32*>(src);
+
+		while (len)
+		{
+			*start = value;
+			++start;
+			--len;
+		}
+
+		return (voidPtr)start;
+	}
+
+	Int rt_move_memory(const voidPtr src, voidPtr dst, Size len)
+	{
+		Char* srcChr  = reinterpret_cast<Char*>(src);
+		Char* dstChar = reinterpret_cast<Char*>(dst);
+		SizeT index	  = 0;
+
+		while (index < len)
+		{
+			dstChar[index] = srcChr[index];
+			srcChr[index]  = 0;
+
+			++index;
+		}
+
+		return 0;
+	}
+
+	Int rt_copy_memory(const voidPtr src, voidPtr dst, Size len)
+	{
+		char* srcChr  = reinterpret_cast<char*>(src);
+		char* dstChar = reinterpret_cast<char*>(dst);
+		Size  index	  = 0;
+
+		while (index < len)
+		{
+			dstChar[index] = srcChr[index];
+			++index;
+		}
+
+		dstChar[index] = 0;
+
+		return index;
+	}
+
+	const Char* rt_alloc_string(const Char* src)
+	{
+		const Char* string = new Char[rt_string_len(src) + 1];
+
+		if (!string)
+			return nullptr;
+
+		voidPtr v_src = reinterpret_cast<voidPtr>(const_cast<char*>(src));
+		voidPtr v_dst = reinterpret_cast<voidPtr>(const_cast<char*>(string));
+
+		rt_copy_memory(v_src, v_dst, rt_string_len(src) + 1);
+
+		return string;
+	}
+
+	Int32 rt_to_uppercase(Int32 character)
+	{
+		if (character >= 'a' && character <= 'z')
+			return character - 0x20;
+
+		return character;
+	}
+
+	Int32 rt_to_lower(Int32 character)
+	{
+		if (character >= 'A' && character <= 'Z')
+			return character + 0x20;
+
+		return character;
+	}
+
+	Boolean is_space(Char chr)
+	{
+		return chr == ' ';
+	}
+
+	Boolean is_newln(Char chr)
+	{
+		return chr == '\n';
+	}
+
+	VoidPtr rt_string_in_string(const Char* in, const Char* needle)
+	{
+		for (SizeT i = 0; i < rt_string_len(in); ++i)
+		{
+			if (rt_string_cmp(in + i, needle, rt_string_len(needle)) == 0)
+				return reinterpret_cast<voidPtr>(const_cast<char*>(in + i));
+		}
+
+		return nullptr;
+	}
+
+	Char rt_to_char(UInt64 base, Int32 limit)
+	{
+		const Char kNumbers[17] = "0123456789ABCDEF";
+		return kNumbers[base % limit];
+	}
+
+	Bool rt_to_string(Char* str, UInt64 base, Int32 limit)
+	{
+#ifdef __ZKA_AMD64__
+		auto i = 0;
+
+		auto final_number = base;
+
+		auto mult  = 1;
+		auto elems = 0L;
+
+		base /= 10;
+
+		while (base > 0)
+		{
+			elems++;
+			mult *= 10;
+			base /= 10;
+		}
+
+		while (elems > -1)
+		{
+			final_number = (final_number % mult) * 10 + final_number / mult;
+			str[i]		 = rt_to_char(final_number, limit);
+
+			--elems;
+			++i;
+		}
+#endif
+
+		return YES;
+	}
+
+	/// @brief Checks for a string start at the character.
+
+	Char* rt_string_has_char(Char* str, const Char chr)
+	{
+		while (*str != chr)
+		{
+			++str;
+
+			if (*str == 0)
+				return nullptr;
+		}
+
+		return str;
+	}
+} // namespace Kernel
+
+EXTERN_C void* memset(void* dst, int c, long long unsigned int len)
+{
+	return Kernel::rt_set_memory(dst, c, len);
+}
+
+EXTERN_C void* memcpy(void* dst, const void* src, long long unsigned int len)
+{
+	Kernel::rt_copy_memory(const_cast<void*>(src), dst, len);
+	return dst;
+}