From 3012fa5dfe5dfed5e83baf9b40934ed8e8317627 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Fri, 3 Jul 2026 09:32:30 +0200
Subject: kernel: rearrange sources according to p1204

---
 kernel/src/devices/block_device_utils.cpp | 106 ------------------------------
 1 file changed, 106 deletions(-)
 delete mode 100644 kernel/src/devices/block_device_utils.cpp

(limited to 'kernel/src/devices/block_device_utils.cpp')

diff --git a/kernel/src/devices/block_device_utils.cpp b/kernel/src/devices/block_device_utils.cpp
deleted file mode 100644
index 18d1e9d7..00000000
--- a/kernel/src/devices/block_device_utils.cpp
+++ /dev/null
@@ -1,106 +0,0 @@
-#include <kernel/devices/block_device_utils.hpp>
-
-#include <kernel/devices/block_device.hpp>
-
-#include <kapi/devices/device.hpp>
-#include <kapi/system.hpp>
-
-#include <kstd/cstring>
-#include <kstd/memory>
-#include <kstd/vector>
-
-#include <algorithm>
-#include <cstddef>
-
-namespace kernel::devices::block_device_utils
-{
-
-  using block_op = void (*)(size_t idx, size_t off, size_t len, size_t done, devices::block_device * device,
-                            std::byte * scratch, void * buffer);
-
-  auto process_blocks(kstd::shared_ptr<kapi::devices::device> const & device, size_t offset, size_t size, void * buffer,
-                      block_op op) -> size_t
-  {
-    if (buffer == nullptr)
-    {
-      kapi::system::panic("[FILESYSTEM] device_file::process_blocks called with null buffer.");
-    }
-
-    if (size == 0)
-    {
-      return 0;
-    }
-
-    if (!device->is_block_device())
-    {
-      kapi::system::panic("[FILESYSTEM] device_file: expected block_device.");
-    }
-
-    auto * block_dev = static_cast<devices::block_device *>(device.get());
-
-    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;
-  }
-
-  auto read(kstd::shared_ptr<kapi::devices::device> const & device, void * buffer, size_t offset, size_t size) -> size_t
-  {
-    return process_blocks(device, 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);
-                            }
-                          });
-  }
-
-  auto write(kstd::shared_ptr<kapi::devices::device> const & device, void const * buffer, size_t offset, size_t size)
-      -> size_t
-  {
-    return process_blocks(device, 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);
-                            }
-                          });
-  }
-
-}  // namespace kernel::devices::block_device_utils
\ No newline at end of file
-- 
cgit v1.2.3