From 3ace886a9e9f044cd48de51f0a15aceb02bfa9b2 Mon Sep 17 00:00:00 2001
From: "marcel.braun" <marcel.braun@ost.ch>
Date: Tue, 17 Mar 2026 19:36:20 +0100
Subject: Clean up project folder structure

---
 kernel/filesystem/src/device_file.cpp | 124 ----------------------------------
 1 file changed, 124 deletions(-)
 delete mode 100644 kernel/filesystem/src/device_file.cpp

(limited to 'kernel/filesystem/src/device_file.cpp')

diff --git a/kernel/filesystem/src/device_file.cpp b/kernel/filesystem/src/device_file.cpp
deleted file mode 100644
index 8fc159a..0000000
--- a/kernel/filesystem/src/device_file.cpp
+++ /dev/null
@@ -1,124 +0,0 @@
-#include "filesystem/device_file.hpp"
-
-#include "kapi/system.hpp"
-
-#include "devices/block_device.hpp"
-#include "devices/device.hpp"
-
-#include <kstd/cstring>
-#include <kstd/memory>
-#include <kstd/vector>
-
-#include <algorithm>
-#include <cstddef>
-
-namespace filesystem
-{
-  device_file::device_file(kstd::shared_ptr<devices::device> const & device)
-      : m_device(device)
-  {
-    if (!m_device)
-    {
-      kapi::system::panic("[FILESYSTEM] device_file constructed with null device.");
-    }
-  }
-
-  auto device_file::open() -> void
-  {
-    // Hook point for permission checks or lazy metadata loading.
-  }
-
-  auto device_file::read(void * buffer, size_t offset, size_t size) const -> size_t
-  {
-    if (m_device->is_block_device())
-    {
-      return process_blocks(offset, size, buffer,
-                            [](size_t idx, size_t off, size_t len, size_t done, devices::block_device * device,
-                               std::byte * scratch, void * buffer) {
-                              auto * out = static_cast<std::byte *>(buffer);
-                              if (off == 0 && len == device->block_size())
-                              {
-                                device->read_block(idx, out + done);
-                              }
-                              else
-                              {
-                                device->read_block(idx, scratch);
-                                kstd::libc::memcpy(out + done, scratch + off, len);
-                              }
-                            });
-    }
-    else
-    {
-      kapi::system::panic("[FILESYSTEM] device_file::read called on non-block device.");
-    }
-  }
-
-  auto device_file::write(void const * buffer, size_t offset, size_t size) -> size_t
-  {
-    if (m_device->is_block_device())
-    {
-      return process_blocks(offset, size, const_cast<void *>(buffer),
-                            [](size_t idx, size_t off, size_t len, size_t done, devices::block_device * device,
-                               std::byte * scratch, void * buffer) {
-                              auto const * in = static_cast<std::byte const *>(buffer);
-                              if (off == 0 && len == device->block_size())
-                              {
-                                device->write_block(idx, in + done);
-                              }
-                              else
-                              {
-                                device->read_block(idx, scratch);
-                                kstd::libc::memcpy(scratch + off, in + done, len);
-                                device->write_block(idx, scratch);
-                              }
-                            });
-    }
-    else
-    {
-      kapi::system::panic("[FILESYSTEM] device_file::write called on non-block device.");
-    }
-  }
-
-  auto device_file::process_blocks(size_t offset, size_t size, void * buffer, block_op op) const -> size_t
-  {
-    if (buffer == nullptr)
-    {
-      kapi::system::panic("[FILESYSTEM] device_file::write called with null buffer.");
-    }
-
-    if (size == 0)
-    {
-      return 0;
-    }
-
-    auto * block_dev = static_cast<devices::block_device *>(m_device.get());
-    if (block_dev == nullptr)
-    {
-      kapi::system::panic("[FILESYSTEM] device_file: expected block_device.");
-    }
-
-    size_t const block_size = block_dev->block_size();
-    size_t const capacity = block_dev->capacity();
-
-    if (offset >= capacity)
-      return 0;
-    size_t const total_to_process = std::min(size, capacity - offset);
-
-    kstd::vector<std::byte> scratch_buffer{block_size};
-    auto processed = 0uz;
-
-    while (processed < total_to_process)
-    {
-      size_t const absolute_offset = offset + processed;
-      size_t const block_index = absolute_offset / block_size;
-      size_t const in_block_offset = absolute_offset % block_size;
-      size_t const chunk_size = std::min(total_to_process - processed, block_size - in_block_offset);
-
-      op(block_index, in_block_offset, chunk_size, processed, block_dev, scratch_buffer.data(), buffer);
-
-      processed += chunk_size;
-    }
-
-    return processed;
-  }
-}  // namespace filesystem
-- 
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