| public ThrowIfCancellationRequested ( ) : void | ||
| return | void | |
/// <inheritdoc/>
public void Run(CancellationToken cancellationToken = default(CancellationToken), ICredentialProvider credentialProvider = null, IProgress<TaskSnapshot> progress = null)
{
cancellationToken.ThrowIfCancellationRequested();
CancellationToken = cancellationToken;
_progress = progress;
CredentialProvider = credentialProvider;
State = TaskState.Started;
try
{
// Run task with privileges of original user if possible
if (_originalIdentity != null)
{
using (_originalIdentity.Impersonate())
Execute();
}
else Execute();
}
#region Error handling
catch (OperationCanceledException)
{
State = TaskState.Canceled;
throw;
}
catch (IOException)
{
State = TaskState.IOError;
throw;
}
catch (UnauthorizedAccessException)
{
State = TaskState.IOError;
throw;
}
catch (WebException)
{
State = TaskState.WebError;
throw;
}
#endregion
}
public static void CopyToEx([NotNull] this Stream source, [NotNull] Stream destination, int bufferSize = 4096, CancellationToken cancellationToken = default(CancellationToken), Tasks.IProgress<long> progress = null)
{
#region Sanity checks
if (source == null) throw new ArgumentNullException(nameof(source));
if (destination == null) throw new ArgumentNullException(nameof(destination));
#endregion
if (source.CanSeek) source.Position = 0;
var buffer = new byte[bufferSize];
int read;
long sum = 0;
do
{
cancellationToken.ThrowIfCancellationRequested();
sum += read = source.Read(buffer, 0, buffer.Length);
destination.Write(buffer, 0, read);
progress?.Report(sum);
} while (read != 0);
}
