Method close

plugins/e57/libE57Format/src/CompressedVectorWriterImpl.cpp:153–229

   }

   void CompressedVectorWriterImpl::close()
   {
#ifdef E57_VERBOSE
      std::cout << "CompressedVectorWriterImpl::close() called" << std::endl; //???
#endif
      ImageFileImplSharedPtr imf( cVector_->destImageFile_ );

      // Before anything that can throw, decrement writer count
      imf->decrWriterCount();

      checkImageFileOpen( __FILE__, __LINE__, static_cast<const char *>( __FUNCTION__ ) );
      // don't call checkWriterOpen();

      if ( !isOpen_ )
      {
         return;
      }

      // Set closed before do anything, so if get fault and start unwinding, don't
      // try to close again.
      isOpen_ = false;

      // If have any data, write packet
      // Write all remaining ioBuffers and internal encoder register cache into
      // file. Know we are done when totalOutputAvailable() returns 0 after a
      // flush().
      flush();
      while ( totalOutputAvailable() > 0 )
      {
         packetWrite();
         flush();
      }

      // Write one index packet (required by standard).
      packetWriteIndex();

      // Compute length of whole section we just wrote (from section start to
      // current start of free space).
      sectionLogicalLength_ = imf->unusedLogicalStart_ - sectionHeaderLogicalStart_;
#ifdef E57_VERBOSE
      std::cout << "  sectionLogicalLength_=" << sectionLogicalLength_ << std::endl; //???
#endif

      // Prepare CompressedVectorSectionHeader
      CompressedVectorSectionHeader header;
      header.sectionLogicalLength = sectionLogicalLength_;
      header.dataPhysicalOffset =
         dataPhysicalOffset_; //??? can be zero, if no data written ???not set yet
      header.indexPhysicalOffset =
         topIndexPhysicalOffset_; //??? can be zero, if no data written ???not set
                                  // yet
#ifdef E57_VERBOSE
      std::cout << "  CompressedVectorSectionHeader:" << std::endl;
      header.dump( 4 ); //???
#endif

#if VALIDATE_BASIC
      // Verify OK before write it.