public SyncFIFOObservable(IObservable <T> src, MutexFIFO syncLock, Func <T, bool, Exception, bool> syncPredicate)
{
_source = src; _syncLock = syncLock; _syncPredicate = syncPredicate;
}
public SyncFIFOObservable(IObservable <T> src, MutexFIFO syncLock)
: this(src, syncLock, (a, b, c) => true)
{
}