GetParameters(MetadataReader reader, TypeReferenceTypeProvider typeProvider, GenericContext genericContext, MethodSignature <MetadataTypeReference> signature, ParameterHandleCollection handles)
{
var parameters = new IMetadataParameter[handles.Count];
var returnValueAttributes = (IReadOnlyList <IMetadataAttribute>)null;
var maxSequenceNumber = 0;
foreach (var handle in handles)
{
var parameter = reader.GetParameter(handle);
if (parameter.SequenceNumber == 0)
{
returnValueAttributes = GetAttributes(reader, typeProvider, parameter.GetCustomAttributes(), genericContext);
continue;
}
if (maxSequenceNumber < parameter.SequenceNumber)
{
maxSequenceNumber = parameter.SequenceNumber;
}
var parameterIndex = parameter.SequenceNumber - 1;
parameters[parameterIndex] = new ReaderParameter(reader, typeProvider, parameter, genericContext, signature.ParameterTypes[parameterIndex]);
}
if (maxSequenceNumber == parameters.Length)
{
return(parameters, Array.Empty <IMetadataAttribute>());
}
// Account for skipping the return parameter
var correctedLength = new IMetadataParameter[maxSequenceNumber];
Array.Copy(parameters, correctedLength, correctedLength.Length);
return(correctedLength, returnValueAttributes);
}
public void ProcessRequest(HttpContext context)
{
if (string.IsNullOrEmpty(noimagePath))
{
noimagePath = context.Server.MapPath("~\\images\\noimage.png");
}
int imageID = -1;
int.TryParse((context.Request.Params["id"] ?? "-1").ToString(), out imageID);
bool isThumbnail = bool.Parse((context.Request.Params["thumbnail"] ?? "false").ToString());
ReaderParameter par = new ReaderParameter();
par.ImageId = imageID;
par.IsThumbnail = isThumbnail;
par.IsNoImagePath = noimagePath;
par.DataSource = bll;
par.IsThumbnail = isThumbnail;
Thread thread = new Thread(picreader);
thread.Start(par);
//如果超过500毫秒未读取出来就直接停止
Thread.Sleep(500);
if (!par.Success ||(thread.ThreadState != ThreadState.Stopped && thread.ThreadState != ThreadState.StopRequested ))
{
thread.Abort();
FileStream fstr = null;
try
{
fstr = File.OpenRead(par.IsNoImagePath);
par.CathedImage = System.Drawing.Image.FromStream(fstr, true);
}
catch
{
throw;
}
finally
{
fstr.Close();
}
}
System.Drawing.Imaging.ImageFormat format = System.Drawing.Imaging.ImageFormat.Jpeg;
par.CathedImage.Save(context.Response.OutputStream, format);
}
