IdThreadSafe

TIdThreadSafeDouble is a TIdThreadSafe descendant that implements a thread-safe data type for storing a Double value. 

TIdThreadSafeDouble relies on TIdCriticalSection for resource protection in multi-threaded applications. 

TIdThreadSafeDouble implements the Value property for reading or writing the Double value associated with the class instance using resource protection. 

TIdThreadSafeDouble also implements methods that protect write access to Value using Add and Subtract.

TIdThreadSafeDouble.Value 

TIdThreadSafeDouble.Add 

TIdThreadSafeDouble.Subtract 

TIdThreadSafe 

TIdCriticalSection