// Token: 0x060012BE RID: 4798 RVA: 0x0006D6F8 File Offset: 0x0006B8F8
private void WriteLzxPatch(Stream stream, DataPatching patchGenerator, byte[] oldBuffer, int oldSize, byte[] newBuffer, int newSize)
{
if (oldBuffer.Length != oldSize)
{
oldBuffer = DiffFileGenerator.GetArraySegment(oldBuffer, 0, oldSize);
}
if (newBuffer.Length != newSize)
{
newBuffer = DiffFileGenerator.GetArraySegment(newBuffer, 0, newSize);
}
byte[] array;
if (patchGenerator.TryGenerate(oldBuffer, newBuffer, out array))
{
uint crc = OABCRC.ComputeCRC(OABCRC.DefaultSeed, newBuffer);
this.WritePatchBlock(stream, oldBuffer.Length, newBuffer.Length, array, array.Length, crc);
return;
}
byte[][] array2 = DiffFileGenerator.SplitByteArray(oldBuffer);
byte[][] array3 = DiffFileGenerator.SplitByteArray(newBuffer);
for (int i = 0; i < 2; i++)
{
if (patchGenerator.TryGenerate(array2[i], array3[i], out array))
{
uint crc2 = OABCRC.ComputeCRC(OABCRC.DefaultSeed, array3[i]);
this.WritePatchBlock(stream, array2[i].Length, array3[i].Length, array, array.Length, crc2);
}
}
}
// Token: 0x06001380 RID: 4992 RVA: 0x00071BCC File Offset: 0x0006FDCC
internal void ComputeCRCAndWrite(IWriteToBinaryWriter data, BinaryWriter writer, ref uint crc32)
{
this.memoryStream.Seek(0L, SeekOrigin.Begin);
data.WriteTo(this.memoryWriter);
int count = (int)this.memoryStream.Position;
crc32 = OABCRC.ComputeCRC(crc32, this.memoryStream.GetBuffer(), 0, count);
writer.Write(this.memoryStream.GetBuffer(), 0, count);
}
// Token: 0x0600133C RID: 4924 RVA: 0x00070370 File Offset: 0x0006E570
private void CreateFlatFileFromMultiplePagesOfResults(Stream sortedFlatFileStream, List <FileStream> tempFiles)
{
this.abortProcessingOnShutdown();
using (IOCostStream iocostStream = new IOCostStream(new NoCloseStream(sortedFlatFileStream)))
{
using (new FileSystemPerformanceTracker("ProduceSortedFlatFile", iocostStream, this.stats))
{
using (BinaryWriter binaryWriter = new BinaryWriter(iocostStream))
{
using (CRCScratchPad crcscratchPad = new CRCScratchPad())
{
OABFileHeader oabfileHeader = new OABFileHeader();
oabfileHeader.WriteTo(binaryWriter);
uint num = OABCRC.DefaultSeed;
OABPropertyDescriptor[] array = new OABPropertyDescriptor[this.propertyManager.OABProperties.Length];
for (int i = 0; i < array.Length; i++)
{
array[i] = this.propertyManager.OABProperties[i].PropertyDescriptor;
}
OABFileProperties data = new OABFileProperties
{
HeaderProperties = this.propertyManager.HeaderProperties,
DetailProperties = array
};
crcscratchPad.ComputeCRCAndWrite(data, binaryWriter, ref num);
OABFileRecord data2 = this.CreateHeaderRecord();
crcscratchPad.ComputeCRCAndWrite(data2, binaryWriter, ref num);
int num2 = 0;
using (TempFileReaderCollection tempFileReaderCollection = new TempFileReaderCollection())
{
tempFileReaderCollection.Initialize(this.stats, tempFiles);
for (;;)
{
this.abortProcessingOnShutdown();
byte[] nextRecord = tempFileReaderCollection.GetNextRecord();
if (nextRecord == null)
{
break;
}
num = OABCRC.ComputeCRC(num, nextRecord, 0, nextRecord.Length);
binaryWriter.Write(nextRecord);
num2++;
}
}
iocostStream.Seek(0L, SeekOrigin.Begin);
oabfileHeader.Version = 32;
oabfileHeader.CRC = num;
oabfileHeader.RecordCount = num2;
oabfileHeader.WriteTo(binaryWriter);
this.stats.IODuration += iocostStream.Writing;
this.stats.TotalNumberOfRecords += num2;
}
}
}
}
}
