// make an async request to the scheduler that handles requests for the given target
internal void AddAsyncRequest(DependencyObject target, AsyncDataRequest request)
{
if (target == null)
{
return;
}
// get the appropriate scheduler
IAsyncDataDispatcher asyncDispatcher = AsyncDataDispatcher;
/* AsyncDataDispatcher property is cut (task 41079)
* IAsyncDataDispatcher asyncDispatcher = Binding.GetAsyncDataDispatcher(target);
* if (asyncDispatcher == null)
* {
* asyncDispatcher = AsyncDataDispatcher;
* }
*/
// add it to the list of schedulers that need cleanup
if (_asyncDispatchers == null)
{
_asyncDispatchers = new HybridDictionary(1); // lazy instantiation
}
_asyncDispatchers[asyncDispatcher] = null; // the value is unused
// make the request
asyncDispatcher.AddRequest(request);
}
// Token: 0x060074CF RID: 29903 RVA: 0x00216970 File Offset: 0x00214B70
private void ProcessRequest(object o)
{
AsyncDataRequest asyncDataRequest = (AsyncDataRequest)o;
try
{
asyncDataRequest.Complete(asyncDataRequest.DoWork());
}
catch (Exception ex)
{
if (CriticalExceptions.IsCriticalApplicationException(ex))
{
throw;
}
asyncDataRequest.Fail(ex);
}
catch
{
asyncDataRequest.Fail(new InvalidOperationException(SR.Get("NonCLSException", new object[]
{
"processing an async data request"
})));
}
object syncRoot = this._list.SyncRoot;
lock (syncRoot)
{
this._list.Remove(asyncDataRequest);
}
}
// Token: 0x06007493 RID: 29843 RVA: 0x00215C30 File Offset: 0x00213E30
private static object OnSetValueCallback(AsyncDataRequest adr)
{
AsyncSetValueRequest asyncSetValueRequest = (AsyncSetValueRequest)adr;
ClrBindingWorker clrBindingWorker = (ClrBindingWorker)asyncSetValueRequest.Args[0];
clrBindingWorker.PW.SetValue(asyncSetValueRequest.TargetItem, asyncSetValueRequest.Value);
return(null);
}
static object OnSetValueCallback(AsyncDataRequest adr)
{
AsyncSetValueRequest request = (AsyncSetValueRequest)adr;
ClrBindingWorker worker = (ClrBindingWorker)request.Args[0];
worker.PW.SetValue(request.TargetItem, request.Value);
return(null);
}
//------------------------------------------------------
//
// Interface: IAsyncDataDispatcher
//
//------------------------------------------------------
/// <summary> Add a request to the dispatcher's queue </summary>
void IAsyncDataDispatcher.AddRequest(AsyncDataRequest request)
{
lock (_list.SyncRoot)
{
_list.Add(request);
}
ThreadPool.QueueUserWorkItem(new WaitCallback(ProcessRequest), request);
}
//------------------------------------------------------
//
// Interface: IAsyncDataDispatcher
//
//------------------------------------------------------
/// <summary> Add a request to the dispatcher's queue </summary>
void IAsyncDataDispatcher.AddRequest(AsyncDataRequest request)
{
lock (_list.SyncRoot)
{
_list.Add(request);
}
ThreadPool.QueueUserWorkItem(new WaitCallback(ProcessRequest), request);
}
// Token: 0x060074CD RID: 29901 RVA: 0x00216898 File Offset: 0x00214A98
void IAsyncDataDispatcher.AddRequest(AsyncDataRequest request)
{
object syncRoot = this._list.SyncRoot;
lock (syncRoot)
{
this._list.Add(request);
}
ThreadPool.QueueUserWorkItem(new WaitCallback(this.ProcessRequest), request);
}
// Token: 0x06007494 RID: 29844 RVA: 0x00215C6C File Offset: 0x00213E6C
private static object OnCompleteSetValueCallback(AsyncDataRequest adr)
{
AsyncSetValueRequest asyncSetValueRequest = (AsyncSetValueRequest)adr;
ClrBindingWorker clrBindingWorker = (ClrBindingWorker)asyncSetValueRequest.Args[0];
DataBindEngine engine = clrBindingWorker.Engine;
if (engine != null)
{
engine.Marshal(ClrBindingWorker.CompleteSetValueLocalCallback, asyncSetValueRequest, 1);
}
return(null);
}
// Token: 0x0600748E RID: 29838 RVA: 0x00215A20 File Offset: 0x00213C20
private static object OnGetValueCallback(AsyncDataRequest adr)
{
AsyncGetValueRequest asyncGetValueRequest = (AsyncGetValueRequest)adr;
ClrBindingWorker clrBindingWorker = (ClrBindingWorker)asyncGetValueRequest.Args[0];
object value = clrBindingWorker.PW.GetValue(asyncGetValueRequest.SourceItem, (int)asyncGetValueRequest.Args[1]);
if (value == PropertyPathWorker.IListIndexOutOfRange)
{
throw new ArgumentOutOfRangeException("index");
}
return(value);
}
/// <summary> Cancel all requests in the dispatcher's queue </summary>
void IAsyncDataDispatcher.CancelAllRequests()
{
lock (_list.SyncRoot)
{
for (int i = 0; i < _list.Count; ++i)
{
AsyncDataRequest request = (AsyncDataRequest)_list[i];
request.Cancel();
}
_list.Clear();
}
}
// Token: 0x060074CE RID: 29902 RVA: 0x002168F8 File Offset: 0x00214AF8
void IAsyncDataDispatcher.CancelAllRequests()
{
object syncRoot = this._list.SyncRoot;
lock (syncRoot)
{
for (int i = 0; i < this._list.Count; i++)
{
AsyncDataRequest asyncDataRequest = (AsyncDataRequest)this._list[i];
asyncDataRequest.Cancel();
}
this._list.Clear();
}
}
static object OnCompleteSetValueCallback(AsyncDataRequest adr)
{
AsyncSetValueRequest request = (AsyncSetValueRequest)adr;
ClrBindingWorker worker = (ClrBindingWorker)request.Args[0];
DataBindEngine engine = worker.Engine;
if (engine != null) // could be null if binding has been detached
{
engine.Marshal(CompleteSetValueLocalCallback, request);
}
return(null);
}
// Token: 0x060074B7 RID: 29879 RVA: 0x00216334 File Offset: 0x00214534
internal void AddAsyncRequest(DependencyObject target, AsyncDataRequest request)
{
if (target == null)
{
return;
}
IAsyncDataDispatcher asyncDataDispatcher = this.AsyncDataDispatcher;
if (this._asyncDispatchers == null)
{
this._asyncDispatchers = new HybridDictionary(1);
}
this._asyncDispatchers[asyncDataDispatcher] = null;
asyncDataDispatcher.AddRequest(request);
}
//------------------------------------------------------
//
// Private methods
//
//------------------------------------------------------
// Run a single request. This method gets scheduled on a worker thread
// from the process ThreadPool.
void ProcessRequest(object o)
{
AsyncDataRequest request = (AsyncDataRequest)o;
// PreSharp uses message numbers that the C# compiler doesn't know about.
// Disable the C# complaints, per the PreSharp documentation.
#pragma warning disable 1634, 1691
// PreSharp complains about catching NullReference (and other) exceptions.
// In this case, these are precisely the ones we want to catch the most,
// so that a failure on a worker thread doesn't affect the main thread.
#pragma warning disable 56500
// run the request - this may take a while
try
{
request.Complete(request.DoWork());
}
// Catch all exceptions. There is no app code on the stack,
// so the exception isn't actionable by the app.
// Yet we don't want to crash the app.
catch (Exception ex)
{
if (CriticalExceptions.IsCriticalApplicationException(ex))
{
throw;
}
request.Fail(ex);
}
catch // non CLS compliant exception
{
request.Fail(new InvalidOperationException(SR.Get(SRID.NonCLSException, "processing an async data request")));
}
#pragma warning restore 56500
#pragma warning restore 1634, 1691
// remove the request from the list
lock (_list.SyncRoot)
{
_list.Remove(request);
}
}
static object OnGetValueCallback(AsyncDataRequest adr)
{
AsyncGetValueRequest request = (AsyncGetValueRequest)adr;
ClrBindingWorker worker = (ClrBindingWorker)request.Args[0];
object value = worker.PW.GetValue(request.SourceItem, (int)request.Args[1]);
if (value == PropertyPathWorker.IListIndexOutOfRange)
throw new ArgumentOutOfRangeException("index");
return value;
}
static object OnSetValueCallback(AsyncDataRequest adr)
{
AsyncSetValueRequest request = (AsyncSetValueRequest)adr;
ClrBindingWorker worker = (ClrBindingWorker)request.Args[0];
worker.PW.SetValue(request.TargetItem, request.Value);
return null;
}
static object OnCompleteSetValueCallback(AsyncDataRequest adr)
{
AsyncSetValueRequest request = (AsyncSetValueRequest)adr;
ClrBindingWorker worker = (ClrBindingWorker)request.Args[0];
Dispatcher dispatcher = worker.Dispatcher;
if (dispatcher != null) // could be null if binding has been detached
{
dispatcher.BeginInvoke(DispatcherPriority.DataBind,
CompleteSetValueLocalCallback,
request);
}
return null;
}
static object OnCompleteSetValueCallback(AsyncDataRequest adr)
{
AsyncSetValueRequest request = (AsyncSetValueRequest)adr;
ClrBindingWorker worker = (ClrBindingWorker)request.Args[0];
DataBindEngine engine = worker.Engine;
if (engine != null) // could be null if binding has been detached
{
engine.Marshal(CompleteSetValueLocalCallback, request);
}
return null;
}
// make an async request to the scheduler that handles requests for the given target
internal void AddAsyncRequest(DependencyObject target, AsyncDataRequest request)
{
if (target == null)
return;
// get the appropriate scheduler
IAsyncDataDispatcher asyncDispatcher = AsyncDataDispatcher;
/* AsyncDataDispatcher property is cut (task 41079)
IAsyncDataDispatcher asyncDispatcher = Binding.GetAsyncDataDispatcher(target);
if (asyncDispatcher == null)
{
asyncDispatcher = AsyncDataDispatcher;
}
*/
// add it to the list of schedulers that need cleanup
if (_asyncDispatchers == null)
{
_asyncDispatchers = new HybridDictionary(1); // lazy instantiation
}
_asyncDispatchers[asyncDispatcher] = null; // the value is unused
// make the request
asyncDispatcher.AddRequest(request);
}
