DiskSwap.h

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/* ========================================
 
  Copyright (C) 2024-2025 Amlal El Mahrouss , licensed under the Apache 2.0 license.
 
======================================== */
 
#pragma once
 
#include <CompilerKit/CompilerKit.h>
#include <NeKit/Config.h>
#include <hint/CompilerHint.h>
 
#define kSwapBlockMaxSize (mib_cast(16))
#define kSwapPageFilePath "/boot/pagefile.sys"

 
namespace Kernel {
struct SWAP_DISK_HEADER;
class DiskSwapInterface;

class DiskSwapInterface final {
 public:
  explicit DiskSwapInterface() = default;
  ~DiskSwapInterface()         = default;
 
  NE_COPY_DELETE(DiskSwapInterface)
  NE_MOVE_DELETE(DiskSwapInterface)
 
 public:
  /***********************************************************************************/
  /***********************************************************************************/
  BOOL Write(const Char* name, SizeT name_len, SWAP_DISK_HEADER* data);
 
  /***********************************************************************************/
  /***********************************************************************************/
  _Output SWAP_DISK_HEADER* Read(const Char* name, SizeT name_len, SizeT data_len);
};

typedef struct SWAP_DISK_HEADER {
  UInt32 fMagic;
  SizeT  fHeaderSz;
  UInt64 fTeamID;
  UInt64 fProcessID;
  UInt64 fVirtualAddress;
  SizeT  fBlobSz;
  UInt8  fBlob[1];
} PACKED ALIGN(8) SWAP_DISK_HEADER;
}  // namespace Kernel