IMPL: NeFS: Add file lock feature and validation for it.

	- It is added to hide files from indexing.
	- And will be used to hide system files.

IMPL: Swap: Add SwapDiskDelegate class, will also work on a swap packet
structure.

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

1 files changed, 57 insertions, 0 deletions

diff --git a/dev/Kernel/src/System/SwapDiskDelegate.cc b/dev/Kernel/src/System/SwapDiskDelegate.cc
new file mode 100644
index 00000000..ffe8812d
--- /dev/null
+++ b/dev/Kernel/src/System/SwapDiskDelegate.cc
@@ -0,0 +1,57 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Theater Quality Corp, all rights reserved.
+
+------------------------------------------- */
+
+#include <SystemKit/Swap.h>
+#include <KernelKit/FileMgr.h>
+
+namespace Kernel::Detail
+{
+	class SwapDiskDelegate;
+
+	class SwapDiskDelegate final
+	{
+	public:
+		explicit SwapDiskDelegate() = default;
+		~SwapDiskDelegate()			= default;
+
+		ZKA_COPY_DEFAULT(SwapDiskDelegate);
+
+		BOOL Write(const Char* fork_name, const SizeT fork_name_len, VoidPtr data, const SizeT data_len)
+		{
+			if (!fork_name || !fork_name_len)
+				return NO;
+
+			if (data_len > mib_cast(16))
+				return NO;
+
+			if (!data)
+				return NO;
+
+			FileStream file(kSwapMgrPageFile, "wb");
+
+			if (file.Write(fork_name, data, data_len).Error())
+			{
+				return NO;
+			}
+
+			return YES;
+		}
+
+		VoidPtr Read(const Char* fork_name, const SizeT fork_name_len, const SizeT data_len)
+		{
+			if (!fork_name || !fork_name_len)
+				return nullptr;
+
+			if (data_len > mib_cast(16))
+				return nullptr;
+
+			FileStream file(kSwapMgrPageFile, "rb");
+
+			voidPtr blob = file.Read(fork_name, data_len);
+			return blob;
+		}
+	};
+} // namespace Kernel::Detail
\ No newline at end of file