C++ constructor

Destructor.

Used to destruct object without calling destructor.

Completes this object's request, if it is active and notifications are enabled.

Implements cancellation of an outstanding request.

This function is called as part of the active object's Cancel() .

It must call the appropriate cancel function offered by the active object's asynchronous service provider. The asynchronous service provider's cancel is expected to act immediately.

DoCancel() must not wait for event completion; this is handled by Cancel() .

CActive::Cancel

Handles notify failure

Handles transaction. Handling depends on mediator type, so this must be implemented in inheriting class.

Initializes the mediator. Must be called from thread this mediator mediates. If child class overloads this, base implementation must be called also.

Notifies the mediator that new transaction needs handling by the thread mediated by this mediator. Called from any thread.

Removes all transactions from queue. This method is only called from server thread.

Removes single transaction from queue. This method is only called from server thread.

Handles an active object's request completion event.

A derived class must provide an implementation to handle the completed request. If appropriate, it may issue another request.

The function is called by the active scheduler when a request completion event occurs, i.e. after the active scheduler's WaitForAnyRequest() function completes.

Before calling this active object's RunL() function, the active scheduler has:

1. decided that this is the highest priority active object with a completed request

2. marked this active object's request as complete (i.e. the request is no longer outstanding)

RunL() runs under a trap harness in the active scheduler. If it leaves, then the active scheduler calls RunError() to handle the leave.

Note that once the active scheduler's Start() function has been called, all user code is run under one of the program's active object's RunL() or RunError() functions.

CActiveScheduler::Start CActiveScheduler::Error CActiveScheduler::WaitForAnyRequest TRAPD

Removes all transactions initiated by specified session from queue. This method is only called from server thread.

Indicates if this object has already been initialized

Mutex pointer. If mediator is created in server main thread, this points to proxy's mutex, otherwise it is a duplicate handle.

Must be initialized and cleaned by child class.

Indicates that at least one notify has failed

Parent proxy of this mediator. Not own.

Holds transaction pointers of transactions queued at this mediator. Own.

Thread handle for owning thread