1 files changed, 24 insertions, 0 deletions
diff --git a/kernel/devices/src/block_device.cpp b/kernel/devices/src/block_device.cpp
new file mode 100644
index 0000000..dd0fd44
--- /dev/null
+++ b/kernel/devices/src/block_device.cpp
@@ -0,0 +1,24 @@
+#include "devices/block_device.hpp"
+
+#include "devices/temp_device.hpp"
+
+#include <cstddef>
+
+namespace devices
+{
+  block_device::block_device(size_t major, size_t minor, size_t block_size)
+      : device(major, minor)
+      , m_block_size(block_size)
+  {}
+
+  auto block_device::calculate_transfer(size_t block_index) const -> transfer_info
+  {
+    size_t const offset = block_index * m_block_size;
+    size_t const limit = size();
+
+    size_t const available = (offset < limit) ? (limit - offset) : 0;
+    size_t const to_transfer = (available < m_block_size) ? available : m_block_size;
+
+    return {offset, to_transfer, m_block_size - to_transfer};
+  }
+}  // namespace devices
+\ No newline at end of file