private bool SetTaskStatus(VSConstants.VsSearchTaskStatus status) {
if (status == Started && !TrySetTaskStatus(status, Created)) {
return false;
}
if (status == Stopped && !TrySetTaskStatus(status, Started) && !TrySetTaskStatus(status, Created)) {
return false;
}
if ((status == Completed || status == Error) && !TrySetTaskStatus(status, Started)) {
return false;
}
return _taskStatus != (long)Stopped;
}
public TextBufferInitializationTracker(
string documentName,
IVsHierarchy hierarchy,
VSConstants.VSITEMID itemid,
IVsTextLines textLines,
Guid languageServiceId,
List<TextBufferInitializationTracker> trackers) {
VsAppShell.Current.CompositionService.SatisfyImportsOnce(this);
_documentName = documentName;
_hierarchy = hierarchy;
_itemid = itemid;
_textLines = textLines;
_languageServiceGuid = languageServiceId;
_trackers = trackers;
IConnectionPointContainer cpc = textLines as IConnectionPointContainer;
Guid g = typeof(IVsTextBufferDataEvents).GUID;
cpc.FindConnectionPoint(g, out cp);
cp.Advise(this, out cookie);
_trackers.Add(this);
}
public override string Goto(VSConstants.VSStd97CmdID cmd, IVsTextView textView, int line, int col, out TextSpan span)
{
span = new TextSpan();
return null;
}
public EmacsCommandAttribute(VSConstants.VSStd2KCmdID command)
: this((int)command, typeof(VSConstants.VSStd2KCmdID).GUID)
{ }
private bool TrySetTaskStatus(VSConstants.VsSearchTaskStatus value, VSConstants.VsSearchTaskStatus comparand) {
var v = (long)value;
var c = (long)comparand;
return Interlocked.CompareExchange(ref _taskStatus, v, c) == c;
}
