public static ThreadPoolBoundHandle BindHandle(SafeHandle handle)
{
if (handle == null)
throw new ArgumentNullException("handle");
if (handle.IsClosed || handle.IsInvalid)
throw new ArgumentException(SR.Argument_InvalidHandle, "handle");
// Make sure we use a statically-rooted completion callback,
// so it doesn't get collected while the I/O is in progress.
Interop.NativeIoCompletionCallback callback = s_nativeIoCompletionCallback;
if (callback == null)
s_nativeIoCompletionCallback = callback = new Interop.NativeIoCompletionCallback(OnNativeIOCompleted);
SafeThreadPoolIOHandle threadPoolHandle = Interop.mincore.CreateThreadpoolIo(handle, s_nativeIoCompletionCallback, IntPtr.Zero, IntPtr.Zero);
if (threadPoolHandle.IsInvalid)
{
int hr = Marshal.GetHRForLastWin32Error();
if (hr == System.HResults.E_HANDLE) // Bad handle
throw new ArgumentException(SR.Argument_InvalidHandle, "handle");
if (hr == System.HResults.E_INVALIDARG) // Handle already bound or sync handle
throw new ArgumentException(SR.Argument_AlreadyBoundOrSyncHandle, "handle");
throw Marshal.GetExceptionForHR(hr);
}
return new ThreadPoolBoundHandle(handle, threadPoolHandle);
}
public static ThreadPoolBoundHandle BindHandle(SafeHandle handle)
{
if (handle == null)
{
throw new ArgumentNullException("handle");
}
if (handle.IsClosed || handle.IsInvalid)
{
throw new ArgumentException(SR.Argument_InvalidHandle, "handle");
}
// Make sure we use a statically-rooted completion callback,
// so it doesn't get collected while the I/O is in progress.
Interop.NativeIoCompletionCallback callback = s_nativeIoCompletionCallback;
if (callback == null)
{
s_nativeIoCompletionCallback = callback = new Interop.NativeIoCompletionCallback(OnNativeIOCompleted);
}
SafeThreadPoolIOHandle threadPoolHandle = Interop.mincore.CreateThreadpoolIo(handle, s_nativeIoCompletionCallback, IntPtr.Zero, IntPtr.Zero);
if (threadPoolHandle.IsInvalid)
{
int hr = Marshal.GetHRForLastWin32Error();
if (hr == System.HResults.E_HANDLE) // Bad handle
{
throw new ArgumentException(SR.Argument_InvalidHandle, "handle");
}
if (hr == System.HResults.E_INVALIDARG) // Handle already bound or sync handle
{
throw new ArgumentException(SR.Argument_AlreadyBoundOrSyncHandle, "handle");
}
throw Marshal.GetExceptionForHR(hr);
}
return(new ThreadPoolBoundHandle(handle, threadPoolHandle));
}