public CabFile(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
using (MemoryStream data = new MemoryStream())
{
stream.CopyTo(data);
_data = data.ToArray();
}
_erf = new ERF();
_alloc = new FNALLOC(FnAlloc);
_free = new FNFREE(FnFree);
_close = new FNCLOSE(FnClose);
_open = new FNOPEN(FnOpen);
_read = new FNREAD(FnRead);
_write = new FNWRITE(FnWrite);
_seek = new FNSEEK(FnSeek);
_extract = new FNFDINOTIFY(FnNotifyExtract);
_erfHandle = GCHandle.Alloc(_erf, GCHandleType.Pinned);
_hfdi = FDICreate(
Marshal.GetFunctionPointerForDelegate(_alloc),
Marshal.GetFunctionPointerForDelegate(_free),
Marshal.GetFunctionPointerForDelegate(_open),
Marshal.GetFunctionPointerForDelegate(_read),
Marshal.GetFunctionPointerForDelegate(_write),
Marshal.GetFunctionPointerForDelegate(_close),
Marshal.GetFunctionPointerForDelegate(_seek)
, -1, _erfHandle.AddrOfPinnedObject());
}
public static extern IntPtr FDICreate(
FNALLOC pfnalloc,
FNFREE pfnfree,
FNOPEN pfnopen,
FNREAD pfnread,
FNWRITE pfnwrite,
FNCLOSE pfnclose,
FNSEEK pfnseek,
int cpuType,
ref ExtractResult perf);
public static unsafe extern FdiHandle FDICreate(
FNALLOC pfnalloc,
FNFREE pfnfree,
FNOPEN pfnopen,
FNREAD pfnread,
FNWRITE pfnwrite,
FNCLOSE pfnclose,
FNSEEK pfnseek,
CpuType cpuType,
[Friendly(FriendlyFlags.Out)] ERF *perf);