src/system/kernel/disk_device_manager/UserDataWriter.h

   1 // KDiskDeviceUserDataWriter.h
   2
   3 #ifndef _K_DISK_DEVICE_USER_DATA_WRITER_H
   4 #define _K_DISK_DEVICE_USER_DATA_WRITER_H
   5
   6 #include <SupportDefs.h>
   7
   8 struct user_disk_device_data;
   9 struct user_partition_data;
  10
  11 namespace BPrivate {
  12 namespace DiskDevice {
  13
  14 class UserDataWriter {
  15 public:
  16         UserDataWriter();
  17         UserDataWriter(user_disk_device_data *buffer, size_t bufferSize);
  18         ~UserDataWriter();
  19
  20         status_t SetTo(user_disk_device_data *buffer, size_t bufferSize);
  21         void Unset();
  22
  23         void *AllocateData(size_t size, size_t align = 1);
  24         user_partition_data *AllocatePartitionData(size_t childCount);
  25         user_disk_device_data *AllocateDeviceData(size_t childCount);
  26
  27         char *PlaceString(const char *str);
  28
  29         size_t AllocatedSize() const;
  30
  31         status_t AddRelocationEntry(void *address);
  32         status_t Relocate(void *address);
  33
  34 private:
  35         struct RelocationEntryList;
  36
  37         user_disk_device_data   *fBuffer;
  38         size_t                                  fBufferSize;
  39         size_t                                  fAllocatedSize;
  40         RelocationEntryList             *fRelocationEntries;
  41 };
  42
  43 } // namespace DiskDevice
  44 } // namespace BPrivate
  45
  46 using BPrivate::DiskDevice::UserDataWriter;
  47
  48 #endif  // _K_DISK_DEVICE_USER_DATA_WRITER_H