| 741 | } |
| 742 | |
| 743 | void CheckedFile::readPhysicalPage( char *page_buffer, uint64_t page ) |
| 744 | { |
| 745 | #ifdef E57_VERBOSE |
| 746 | // cout << "readPhysicalPage, page:" << page << std::endl; |
| 747 | #endif |
| 748 | |
| 749 | #ifdef E57_CHECK_FILE_DEBUG |
| 750 | const uint64_t physicalLength = length( Physical ); |
| 751 | |
| 752 | assert( page * physicalPageSize < physicalLength ); |
| 753 | #endif |
| 754 | |
| 755 | // Seek to start of physical page |
| 756 | seek( page * physicalPageSize, Physical ); |
| 757 | |
| 758 | if ( ( fd_ < 0 ) && ( bufView_ != nullptr ) ) |
| 759 | { |
| 760 | bufView_->read( page_buffer, physicalPageSize ); |
| 761 | return; |
| 762 | } |
| 763 | |
| 764 | #if defined( _MSC_VER ) |
| 765 | int result = ::_read( fd_, page_buffer, physicalPageSize ); |
| 766 | #elif defined( __GNUC__ ) |
| 767 | ssize_t result = ::read( fd_, page_buffer, physicalPageSize ); |
| 768 | #else |
| 769 | #error "no supported compiler defined" |
| 770 | #endif |
| 771 | |
| 772 | if ( result < 0 || static_cast<size_t>( result ) != physicalPageSize ) |
| 773 | { |
| 774 | throw E57_EXCEPTION2( ErrorReadFailed, |
| 775 | "fileName=" + fileName_ + " result=" + toString( result ) ); |
| 776 | } |
| 777 | } |
| 778 | |
| 779 | void CheckedFile::writePhysicalPage( char *page_buffer, uint64_t page ) |
| 780 | { |