public void ReadChunks(ReadChunkDelegate tryParseChunk)
{
do
{
ChunkId chunkID = ChunkId.FromStream(_reader);
if (chunkID == ChunkId.Empty) // End reached
{
break;
}
// Check if chunk is known, and if not, mark it
if (_knownChunkList != null && !UnknownChunksFound &&
!_knownChunkList.Contains(chunkID))
{
UnknownChunksFound = true;
}
// Read up to a 64 bit number for the chunk size
long chunkSize = LEB128.ReadLong(_reader);
// Try loading chunk content
long chunkStart = _reader.BaseStream.Position;
bool chunkRecognized = false;
Exception chunkException = null;
try
{
chunkRecognized = tryParseChunk(chunkID, chunkSize);
}
catch (OperationCanceledException)
{ // Don't actually keep going if it's an 'OperationCanceledException'
throw;
}
catch (Exception exc)
{
chunkException = exc;
}
long readDataCount = _reader.BaseStream.Position - chunkStart;
// Print messages for various problems that might have occurred while loading
if (chunkException != null)
{
logger.Error(chunkException, "Chunk loading raised an exception" + GetLocoationStr(chunkStart, chunkSize, chunkID));
}
else if (!chunkRecognized)
{
logger.Warn("Chunk not recognized" + GetLocoationStr(chunkStart, chunkSize, chunkID));
}
else if (readDataCount > chunkSize)
{
logger.Error("More data was read than available (Read: " + readDataCount + " Available: " + chunkSize + ")" + GetLocoationStr(chunkStart, chunkSize, chunkID));
}
else if (readDataCount < chunkSize)
{
logger.Warn("Not all the available data was read (Read: " + readDataCount + " Available: " + chunkSize + ")" + GetLocoationStr(chunkStart, chunkSize, chunkID));
}
// Adjust _stream position if necessaary
if (readDataCount != chunkSize)
{
_reader.BaseStream.Position = chunkStart + chunkSize;
}
} while (true);
}
public long ReadChunkLong(long length)
{
return(LEB128.ReadLong(_reader));
}
