propagator_block::propagate Method
Asynchronously passes a message from a source block to this target block.
virtual message_status propagate(
_Inout_opt_ message<_Source_type> * _PMessage,
_Inout_opt_ ISource<_Source_type> * _PSource
);
Parameters
_PMessage
A pointer to the message object._PSource
A pointer to the source block offering the message.
Return Value
A message_status indication of what the target decided to do with the message.
Remarks
The propagate method is invoked on a target block by a linked source block. It queues up an asynchronous task to handle the message, if one is not already queued or executing.
The method throws an invalid_argument exception if either the _PMessage or _PSource parameter is NULL.
Requirements
Header: agents.h
Namespace: concurrency