protected void CreateHandles(long capacity)
{
if (NativeStream.Length > capacity)
{
capacity = NativeStream.Length;
}
Handle = MemoryMappedFile.CreateFromFile(
NativeStream, null, capacity,
MemoryMappedFileAccess.ReadWrite,
null, HandleInheritability.None, true
);
HeaderView = Handle.CreateViewAccessor(0, HeaderSize);
StreamCapacity = capacity;
Cache = new ViewCache(Handle, StreamCapacity);
}
private void DisposeViews()
{
if (Cache != null)
{
Cache.Dispose();
Cache = null;
}
if (HeaderView != null)
{
// https://connect.microsoft.com/VisualStudio/feedback/details/552859/memorymappedviewaccessor-flush-throws-ioexception
// HeaderView.Dispose();
HeaderView.SafeMemoryMappedViewHandle.Dispose();
HeaderView = null;
}
if (Handle != null)
{
Handle.Dispose();
Handle = null;
}
}
private void DisposeViews()
{
if (Cache != null) {
Cache.Dispose();
Cache = null;
}
if (HeaderView != null) {
// https://connect.microsoft.com/VisualStudio/feedback/details/552859/memorymappedviewaccessor-flush-throws-ioexception
// HeaderView.Dispose();
HeaderView.SafeMemoryMappedViewHandle.Dispose();
HeaderView = null;
}
if (Handle != null) {
Handle.Dispose();
Handle = null;
}
}
protected void CreateHandles(long capacity)
{
if (NativeStream.Length > capacity)
capacity = NativeStream.Length;
Handle = MemoryMappedFile.CreateFromFile(
NativeStream, null, capacity,
MemoryMappedFileAccess.ReadWrite,
null, HandleInheritability.None, true
);
HeaderView = Handle.CreateViewAccessor(0, HeaderSize);
StreamCapacity = capacity;
Cache = new ViewCache(Handle, StreamCapacity);
}
public StreamRange(StreamRef stream, ViewCache.CacheEntry cacheEntry, long offset, uint size)
{
Stream = stream;
CacheEntry = cacheEntry;
View = null;
Offset = offset;
Size = size;
Buffer = cacheEntry.Buffer;
IsDisposed = false;
unchecked {
Pointer = cacheEntry.Pointer + cacheEntry.PointerOffset;
Pointer += (offset - cacheEntry.Offset);
}
}
