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/* -------------------------------------------
Copyright (C) 2024-2025 Amlal EL Mahrouss Labs, all rights reserved.
------------------------------------------- */
#include <SwapKit/DiskSwap.h>
#include <KernelKit/FileMgr.h>
namespace NeOS
{
/***********************************************************************************/
/// @brief Write memory chunk onto disk.
/// @param fork_name The swap name to recognize this memory region.
/// @param fork_name_len length of fork name.
/// @param data the data packet.
/// @return Whether the swap was written to disk, or not.
/***********************************************************************************/
BOOL SwapDiskInterface::Write(const Char* fork_name, const SizeT fork_name_len, SWAP_DISK_HEADER* data)
{
if (!fork_name || !fork_name_len)
return NO;
if (*fork_name == 0)
return NO;
if (!data)
return NO;
FileStream file(kSwapPageFile, "wb");
auto ret = file.Write(fork_name, data, sizeof(SWAP_DISK_HEADER) + data->fBlobSz);
if (ret.Error())
return NO;
return YES;
}
/***********************************************************************************/
/// @brief Read memory chunk from disk.
/// @param fork_name The swap name to recognize this memory region.
/// @param fork_name_len length of fork name.
/// @param data the data packet length.
/// @return Whether the swap was fetched to disk, or not.
/***********************************************************************************/
SWAP_DISK_HEADER* SwapDiskInterface::Read(const Char* fork_name, const SizeT fork_name_len, const SizeT data_len)
{
if (!fork_name || !fork_name_len)
return nullptr;
if (*fork_name == 0)
return nullptr;
if (data_len > kSwapBlockMaxSize)
return nullptr;
if (data_len == 0)
return nullptr;
FileStream file(kSwapPageFile, "rb");
VoidPtr blob = file.Read(fork_name, sizeof(SWAP_DISK_HEADER) + data_len);
return reinterpret_cast<SWAP_DISK_HEADER*>(blob);
}
} // namespace NeOS
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