Method OnFinish

libs/platform/http_request.cpp:204–262

Called for each chunk by one main (GUI) thread.

  /// Called for each chunk by one main (GUI) thread.
  virtual void OnFinish(long httpOrErrorCode, int64_t begRange, int64_t endRange)
  {
#ifdef DEBUG
    static threads::ThreadID const id = threads::GetCurrentThreadID();
    ASSERT_EQUAL(id, threads::GetCurrentThreadID(), ("OnFinish called from different threads"));
#endif

    bool const isChunkOk = (httpOrErrorCode == 200);
    string const urlError = m_strategy.ChunkFinished(isChunkOk, std::make_pair(begRange, endRange));

    // remove completed chunk from the list, beg is the key
    RemoveHttpThreadByKey(begRange);

    // report progress
    if (isChunkOk)
    {
      m_progress.m_bytesDownloaded += (endRange - begRange) + 1;
      if (m_onProgress)
        m_onProgress(*this);
    }
    else
    {
      auto const message = non_http_error_code::DebugPrint(httpOrErrorCode);
      LOG(LWARNING, (m_filePath, "HttpRequest error:", message));
    }

    ChunksDownloadStrategy::ResultT const result = StartThreads();
    if (result == ChunksDownloadStrategy::EDownloadFailed)
      m_status = httpOrErrorCode == 404 ? DownloadStatus::FileNotFound : DownloadStatus::Failed;
    else if (result == ChunksDownloadStrategy::EDownloadSucceeded)
      m_status = DownloadStatus::Completed;

    // Save chunks statuses into the resume file.
    if (isChunkOk && m_status != DownloadStatus::Completed)
      SaveResumeChunks();

    if (m_status == DownloadStatus::InProgress)
      return;

    // 1. Save downloaded chunks if some error occured.
    if (m_status == DownloadStatus::Failed || m_status == DownloadStatus::FileNotFound)
      SaveResumeChunks();

    // 2. Free file handle.
    CloseWriter();

    // 3. Clean up resume file with chunks range on success
    if (m_status == DownloadStatus::Completed)
    {
      Platform::RemoveFileIfExists(m_filePath + RESUME_FILE_EXTENSION);

      // Rename finished file to it's original name.
      Platform::RemoveFileIfExists(m_filePath);
      base::RenameFileX(m_filePath + DOWNLOADING_FILE_EXTENSION, m_filePath);
    }

    // 4. Finish downloading.
    m_onFinish(*this);