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>

3 files changed, 75 insertions, 33 deletions

diff --git a/dev/Kernel/src/FS/NeFS.cc b/dev/Kernel/src/FS/NeFS.cc
index 27a027cd..bf39f7e6 100644
--- a/dev/Kernel/src/FS/NeFS.cc
+++ b/dev/Kernel/src/FS/NeFS.cc
@@ -720,7 +720,8 @@ bool NeFileSystemParser::WriteCatalog(_Input _Output NFS_CATALOG_STRUCT* catalog
 /// @param catalog_name the catalog name.
 /// @return the newly found catalog.
 _Output NFS_CATALOG_STRUCT* NeFileSystemParser::FindCatalog(_Input const Char* catalog_name,
-															Lba&			   out_lba)
+															Lba&			   out_lba,
+															Bool			   search_hidden)
 {
 	if (!catalog_name ||
 		*catalog_name == 0)
@@ -798,7 +799,7 @@ _Output NFS_CATALOG_STRUCT* NeFileSystemParser::FindCatalog(_Input const Char* c
 		}
 	}
 
-	kcout << "Fetching catalog...\r";
+	kcout << "Finding catalog...\r";
 
 NeFSSearchThroughCatalogList:
 	while (drive.fPacket.fPacketGood)
@@ -813,6 +814,14 @@ NeFSSearchThroughCatalogList:
 
 		if (StringBuilder::Equals(catalog_name, catalog->Name))
 		{
+			/// ignore it, it's locked.
+			if (catalog->Status == kNeFSStatusLocked &&
+				!search_hidden)
+			{
+				err_local_get() = kErrorFileLocked;
+				goto NeFSContinueSearch;
+			}
+
 			/// ignore unallocated catalog, break
 			if (!(catalog->Flags & kNeFSFlagCreated))
 			{
@@ -822,8 +831,8 @@ NeFSSearchThroughCatalogList:
 			NFS_CATALOG_STRUCT* catalogPtr = new NFS_CATALOG_STRUCT();
 			rt_copy_memory(catalog, catalogPtr, sizeof(NFS_CATALOG_STRUCT));
 
-			kcout << "Found catalog at: " << hex_number(start_catalog_lba) << endl;
-			kcout << "Found catalog at: " << catalog->Name << endl;
+			kcout << "Found available catalog at: " << hex_number(start_catalog_lba) << endl;
+			kcout << "Found available catalog at: " << catalog->Name << endl;
 
 			out_lba = start_catalog_lba;
 			return catalogPtr;
@@ -844,6 +853,8 @@ NeFSSearchThroughCatalogList:
 		goto NeFSSearchThroughCatalogList;
 	}
 
+	err_local_get() = kErrorFileNotFound;
+
 	out_lba = 0UL;
 	return nullptr;
 }
@@ -854,7 +865,7 @@ NeFSSearchThroughCatalogList:
 _Output NFS_CATALOG_STRUCT* NeFileSystemParser::GetCatalog(_Input const Char* name)
 {
 	Lba unused = 0;
-	return this->FindCatalog(name, unused);
+	return this->FindCatalog(name, unused, true);
 }
 
 /// @brief Closes a catalog, (frees it).
@@ -923,6 +934,8 @@ Boolean NeFileSystemParser::RemoveCatalog(_Input const Char* catalog_name)
 	}
 
 	delete catalog;
+	catalog = nullptr;
+
 	return false;
 }
 
diff --git a/dev/Kernel/src/Mgr/SwapMgr.cc b/dev/Kernel/src/Mgr/SwapMgr.cc
deleted file mode 100644
index a909846f..00000000
--- a/dev/Kernel/src/Mgr/SwapMgr.cc
+++ /dev/null
@@ -1,28 +0,0 @@
-/* -------------------------------------------
-
-	Copyright (C) 2024, Theater Quality Corp, all rights reserved.
-
-------------------------------------------- */
-
-#include <SystemKit/SwapMgr.h>
-#include <KernelKit/FileMgr.h>
-
-namespace Kernel
-{
-	class SwapMgrDiskMgr;
-
-	class SwapMgrDiskMgr final
-	{
-		static BOOL DumpToDisk(const Char* fork_name, const SizeT fork_name_len, VoidPtr data, const SizeT data_len)
-		{
-			if (!fork_name || !fork_name_len)
-				return NO;
-
-			FileStream file(kSwapMgrPageFile, "wb");
-
-			file.Write(fork_name, data, data_len);
-
-			return YES;
-		}
-	}
-} // namespace Kernel
\ No newline at end of file
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