AbstractSingleDiskAdaptor.h 2.7 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081
  1. /* <!-- copyright */
  2. /*
  3. * aria2 - The high speed download utility
  4. *
  5. * Copyright (C) 2006 Tatsuhiro Tsujikawa
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20. *
  21. * In addition, as a special exception, the copyright holders give
  22. * permission to link the code of portions of this program with the
  23. * OpenSSL library under certain conditions as described in each
  24. * individual source file, and distribute linked combinations
  25. * including the two.
  26. * You must obey the GNU General Public License in all respects
  27. * for all of the code used other than OpenSSL. If you modify
  28. * file(s) with this exception, you may extend this exception to your
  29. * version of the file(s), but you are not obligated to do so. If you
  30. * do not wish to do so, delete this exception statement from your
  31. * version. If you delete this exception statement from all source
  32. * files in the program, then also delete it here.
  33. */
  34. /* copyright --> */
  35. #ifndef _D_ABSTRACT_SINGLE_DISK_ADAPTOR_H_
  36. #define _D_ABSTRACT_SINGLE_DISK_ADAPTOR_H_
  37. #include "DiskAdaptor.h"
  38. #include "DiskWriter.h"
  39. class AbstractSingleDiskAdaptor : public DiskAdaptor {
  40. protected:
  41. DiskWriterHandle diskWriter;
  42. uint64_t totalLength;
  43. public:
  44. AbstractSingleDiskAdaptor():diskWriter(0), totalLength(0) {}
  45. virtual ~AbstractSingleDiskAdaptor() {}
  46. virtual void initAndOpenFile();
  47. virtual void openFile();
  48. virtual void closeFile();
  49. virtual void openExistingFile();
  50. virtual void writeData(const unsigned char* data, uint32_t len,
  51. int64_t offset);
  52. virtual int readData(unsigned char* data, uint32_t len, int64_t offset);
  53. virtual string messageDigest(int64_t offset, uint64_t length,
  54. const MessageDigestContext::DigestAlgo& algo);
  55. virtual bool fileExists();
  56. void setDiskWriter(const DiskWriterHandle diskWriter) {
  57. this->diskWriter = diskWriter;
  58. }
  59. DiskWriterHandle getDiskWriter() const { return diskWriter; }
  60. void setTotalLength(const uint64_t& totalLength) {
  61. this->totalLength = totalLength;
  62. }
  63. uint64_t getTotalLength() const { return totalLength; }
  64. };
  65. #endif // _D_ABSTRACT_SINGLE_DISK_ADAPTOR_H_