[DynamicSecurityMethod] // Methods containing StackCrawlMark local var must be marked DynamicSecurityMethod
#endif
public static DeserializationToken StartDeserialization()
{
if (LocalAppContextSwitches.SerializationGuard)
{
#if CORECLR
StackCrawlMark stackMark = StackCrawlMark.LookForMe;
DeserializationTracker tracker = Thread.GetThreadDeserializationTracker(ref stackMark);
#else
DeserializationTracker tracker = GetThreadDeserializationTracker();
#endif
if (!tracker.DeserializationInProgress)
{
lock (tracker)
{
if (!tracker.DeserializationInProgress)
{
AsyncDeserializationInProgress.Value = true;
tracker.DeserializationInProgress = true;
return(new DeserializationToken(tracker));
}
}
}
}
return(new DeserializationToken(null));
}
private static DeserializationTracker GetThreadDeserializationTracker()
{
if (t_deserializationTracker == null)
{
t_deserializationTracker = new DeserializationTracker();
}
return(t_deserializationTracker);
}
// Declares that the current thread and async context have begun deserialization.
// In this state, if the SerializationGuard or other related AppContext switches are set,
// actions likely to be dangerous during deserialization, such as starting a process will be blocked.
// Returns a DeserializationToken that must be disposed to remove the deserialization state.
public static DeserializationToken StartDeserialization()
{
if (LocalAppContextSwitches.SerializationGuard)
{
DeserializationTracker tracker = GetThreadDeserializationTracker();
if (!tracker.DeserializationInProgress)
{
lock (tracker)
{
if (!tracker.DeserializationInProgress)
{
AsyncDeserializationInProgress.Value = true;
tracker.DeserializationInProgress = true;
return(new DeserializationToken(tracker));
}
}
}
}
return(new DeserializationToken(null));
}
internal DeserializationToken(DeserializationTracker tracker)
{
_tracker = tracker;
}
