DebugInfo/MSF/MappedBlockStream.cpp

87 Error MappedBlockStream::readBytes(uint64_t Offset, uint64_t Size,
90   if (auto EC = checkOffsetForRead(Offset, Size))
93   if (tryReadContiguously(Offset, Size, Buffer))
96   auto CacheIter = CacheMap.find(Offset);
111     Interval RequestExtent = std::make_pair(Offset, Offset + Size);
114     if (CacheItem.first == Offset)
118     if (CacheItem.first >= Offset + Size)
151   if (auto EC = readBytes(Offset, MutableArrayRef<uint8_t>(WriteBuffer, Size)))
159     CacheMap.insert(std::make_pair(Offset, List));
165 Error MappedBlockStream::readLongestContiguousChunk(uint64_t Offset,
168   if (auto EC = checkOffsetForRead(Offset, 1))
171   uint64_t First = Offset / BlockSize;
180   uint64_t OffsetInFirstBlock = Offset % BlockSize;
197 bool MappedBlockStream::tryReadContiguously(uint64_t Offset, uint64_t Size,
208   uint64_t BlockNum = Offset / BlockSize;
209   uint64_t OffsetInBlock = Offset % BlockSize;
238 Error MappedBlockStream::readBytes(uint64_t Offset,
240   uint64_t BlockNum = Offset / BlockSize;
241   uint64_t OffsetInBlock = Offset % BlockSize;
244   if (auto EC = checkOffsetForRead(Offset, Buffer.size()))
254     uint64_t Offset = blockToOffset(StreamBlockAddr, BlockSize);
255     if (auto EC = MsfData.readBytes(Offset, BlockSize, BlockData))
273 void MappedBlockStream::fixCacheAfterWrite(uint64_t Offset,
282     if (Offset + Data.size() < MapEntry.first)
287       if (MapEntry.first + Alloc.size() < Offset)
291       Interval WriteInterval = std::make_pair(Offset, Offset + Data.size());
372 Error WritableMappedBlockStream::readBytes(uint64_t Offset, uint64_t Size,
374   return ReadInterface.readBytes(Offset, Size, Buffer);
378     uint64_t Offset, ArrayRef<uint8_t> &Buffer) {
379   return ReadInterface.readLongestContiguousChunk(Offset, Buffer);
386 Error WritableMappedBlockStream::writeBytes(uint64_t Offset,
389   if (auto EC = checkOffsetForWrite(Offset, Buffer.size()))
392   uint64_t BlockNum = Offset / getBlockSize();
393   uint64_t OffsetInBlock = Offset % getBlockSize();
415   ReadInterface.fixCacheAfterWrite(Offset, Buffer);