private void CreateFci(long maxArchiveSize)
{
NativeMethods.FCI.CCAB ccab = new NativeMethods.FCI.CCAB();
if (maxArchiveSize > 0 && maxArchiveSize < ccab.cb)
{
ccab.cb = Math.Max(
NativeMethods.FCI.MIN_DISK, (int)maxArchiveSize);
}
object maxFolderSizeOption = this.context.GetOption(
"maxFolderSize", null);
if (maxFolderSizeOption != null)
{
long maxFolderSize = Convert.ToInt64(
maxFolderSizeOption, CultureInfo.InvariantCulture);
if (maxFolderSize > 0 && maxFolderSize < ccab.cbFolderThresh)
{
ccab.cbFolderThresh = (int)maxFolderSize;
}
}
this.maxCabBytes = ccab.cb;
ccab.szCab = this.context.GetArchiveName(0);
if (ccab.szCab == null)
{
throw new FileNotFoundException(
"Cabinet name not provided by stream context.");
}
ccab.setID = (short)new Random().Next(
Int16.MinValue, Int16.MaxValue + 1);
this.CabNumbers[ccab.szCab] = 0;
this.currentArchiveName = ccab.szCab;
this.totalArchives = 1;
this.CabStream = null;
this.Erf.Clear();
this.fciHandle = NativeMethods.FCI.Create(
this.ErfHandle.AddrOfPinnedObject(),
this.fciFilePlacedHandler,
this.fciAllocMemHandler,
this.fciFreeMemHandler,
this.fciOpenStreamHandler,
this.fciReadStreamHandler,
this.fciWriteStreamHandler,
this.fciCloseStreamHandler,
this.fciSeekStreamHandler,
this.fciDeleteFileHandler,
this.fciGetTempFileHandler,
ccab,
IntPtr.Zero);
this.CheckError(false);
}
private int CabGetNextCabinet(IntPtr pccab, uint prevCabSize, IntPtr pv)
{
NativeMethods.FCI.CCAB nextCcab = new NativeMethods.FCI.CCAB();
Marshal.PtrToStructure(pccab, nextCcab);
nextCcab.szDisk = String.Empty;
nextCcab.szCab = this.context.GetArchiveName(nextCcab.iCab);
this.CabNumbers[nextCcab.szCab] = (short)nextCcab.iCab;
this.NextCabinetName = nextCcab.szCab;
Marshal.StructureToPtr(nextCcab, pccab, false);
return(1);
}